00809-0100-4760
DS-1900
English
Rev. BA
®
Annubar
Averaging
Pitot Tube Installation
and Operation Manual
Product Manual
1
®
Annubar
A veraging Pitot Tube
Installation and Operation Manual
NOTICE
Read this manual before working with the product. For personal and system safety, and
for optimum product performance, make sure you thoroughly understand the contents
before installing, using, or maintaining this product.
Contact Dieterich Standard Inc. for technical support, quoting, and order-related
questions: 1-303-530-9600
Within the United States, Rosemount Inc. has two toll-free assistance numbers.
Customer Central: 1-800-999-9307 (7:00 a.m. to 7:00 p.m. CST)
North American 1-800-654-7768 (24 hours a day – Includes Canada)
Response Center: Equipment service needs.
For equipment service or support needs outside the United States, contact your
local representative.
(7:30 a.m. to 5:00 p.m. MST).
Technical support, quoting, and order-related questions.
Dieterich Standard Inc.
5601 North 71st Street
Boulder, CO 80301
Tel (303) 530-9600
Fax (303) 530-7064
© 1998 Rosemount Inc.
http://www.rosemount.com
The products described in this document are NOT designed for nuclear-qualified The
products described in this document are NOT designed for nuclear-qualified applications.
Using non-nuclear qualified products in applications that require nuclear-qualified hardware or
products may cause inaccurate readings.
For inf orma tio n on Ro semo unt n ucle ar- quali fie d pr oduc ts, cont act yo ur l ocal sale s repr esen tat iv e.
.
.
Rosemount, the Rosemount logotype, PlantWeb, Fisher-Rosemount, and Managing the Process Better are marks of one of
the Fisher-Rosemount group of companies. Coplanar, MV, and Multivariable are trademarks of Rosemount Inc.
Mass ProBar, ProBar, and Annubar are registered trademarks of Dieterich Standard Inc.
HART is a registered trademark of the HART Communications Foundation.
Monel is a registered trademark of International Nickel Co.
Teflon is a registered trademark of E. I. du Pont de Nemours & Co.
Hastelloy C and Hastelloy C-276 are registered trademarks of Cabot Corp.
Windows is a trademark of Microsoft Corp.
All other marks are the property of their respective owners.
Fisher-Rosemount satisfies all obligations coming from legislation
to harmonize product requirements in the European Union.
Rosemount Model 1295 Annubar Averaging Pitot Tube
iv
Table of Contents
IMPORTANT
Procedures and instructions in this manual may require special precautions to
ensure the safety of the personnel performing the operations. Refer to the
safety messages at the beginning of each section before performing
any operations.
SECTION 1:
Introduction
SECTION 2:
Installation Location
and Orientation
SECTION 3:
Hardware Installation
for Annubar Regular
(Threaded, Pak-Lok)
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Receiving and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Annubar Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Bolting a Transmitter to the Annubar . . . . . . . . . . . . . . . . . . . . . . . .2-2
3-Valve Manifolds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
5-Valve Manifolds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Structural Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Functional Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Straight Run Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Annubar Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Process Connections (Remote Mounted Annubar only) . . . . . . . .2-8
Mounting Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Bolt Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Annubar Models: DCR+15S/16S, 25S/26S, 35S/36S, 45S/46S . . . 3-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Annubar Regular Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Step 1: Determine the Proper Annubar Orientation . . . . . . . . . . . . .3-2
Liquid Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . .3-2
Gas Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Steam Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . .3-3
Liquid or Gas Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . .3-4
Steam Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Shipping Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Step 2: Drill the Hole in the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
Drill a Hole for Opposite-Side Support . . . . . . . . . . . . . . . . . . . . .3-5
Step 3: Tack Weld the Fittings to the Pipe . . . . . . . . . . . . . . . . . . . . .3-6
Step 4: Insert the Annubar into the Pipe . . . . . . . . . . . . . . . . . . . . . .3-7
i
SECTION 4:
Hardware Installation
for Annubar Flanged
Annubar Models: DFF+15S/16S, 25S/26S, 25H/26H, 25M/26M,
35S/36S, 45S/46S, 45H/46H, 45M/46M . . . . . . . . . . . . . . . . . . . . . . 4-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Annubar Flanged Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Step 1: Determine the Proper Orientation of the Annubar . . . . . . . .4-2
Liquid Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . .4-2
Gas Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Steam Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . .4-3
Liquid or Gas Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . .4-3
Gas Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Steam Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Shipping Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Step 2: Drill the Hole in the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Drill a Hole for Opposite-Side Support . . . . . . . . . . . . . . . . . . . . .4-5
Step 3: We ld the Weld-Neck Flange . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Step 4: Assemble the Annubar and Mounting Hardware . . . . . . . . . .4-5
Step 5: Check the Fit-Up of the Annubar to the Pipe . . . . . . . . . . . . .4-6
Check the Fit-Up of the Annubar
with Opposite-Side Support to the Pipe . . . . . . . . . . . . . . . . . . . .4-7
Step 6: Tack Weld the Mounting Hardware . . . . . . . . . . . . . . . . . . . .4-8
Tack Weld the Opposite-Side Support Fitting . . . . . . . . . . . . . . .4-8
Step 7: Finish Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Step 8: Assemble the Annubar and Mounting Flange . . . . . . . . . . . .4-9
Opposite-Side Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
SECTION 5:
Hardware Installation for
Annubar Pak-Lok Flanged
Annubar Models: DPF+15S/16S, 25S/26S, 35S/36S, 45S/46S . . . 5-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Annubar Pak-Lok Flanged Components . . . . . . . . . . . . . . . . . . . . . . .5-2
Step 1: Determine the Proper Orientation of the Annubar . . . . . . . .5-2
Liquid or Steam Service in a Horizontal Pipe . . . . . . . . . . . . . . .5-2
Gas Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Liquid or Gas Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . .5-3
Steam Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Shipping Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Step 2: Drill the Hole in the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Drill a Hole for Opposite-Side Support . . . . . . . . . . . . . . . . . . . . .5-4
Step 3: We ld the Weld-Neck Flange . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
Step 4: Install the Sensor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
ii
SECTION 6:
Hardware Installation for
Annubar Flanged Flo-Tap
Annubar Models: DHF+15S, 25S, 25H, 25M, 35S, 45S, 45H, 45M . . .6-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Annubar Flo-Tap Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Step 1: Determine the Proper Orientation of the Annubar . . . . . . . .6-2
Liquid or Steam Service in a Horizontal Pipe . . . . . . . . . . . . . . .6-2
Gas Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Liquid or Gas Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . .6-3
Steam Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
Step 2: Obtain the Required Welding Equipment and Hardware . . .6-4
Step 3: Prepare the Weld-Neck Flange Assembly . . . . . . . . . . . . . . . .6-5
Step 4: We ld the Weld-Neck Flange . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Step 5: Attach the Unit Isolation Valve . . . . . . . . . . . . . . . . . . . . . . . .6-6
Step 6: Attach the Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Step 7: Attach the Pressure Drilling Machine . . . . . . . . . . . . . . . . . .6-6
Step 8: Drill the Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Step 9: Remove the Drilling Machine . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Step 10: Install the Flo-Tap Assembly . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Step 11: Open the Isolation Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Step 12: Tighten the Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Step 13: Insert the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
Standard Drive (IHR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
Gear Drive (IHD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
Step 14: Check for Leakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
Step 15: Retract the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
Standard Drive (IHR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
Gear Drive (IHD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
Step 16: Close the Isolation Valve . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
Step 17: Remove the Flo-Tap Assembly . . . . . . . . . . . . . . . . . . . . . . .6-10
SECTION 7:
Hardware Installation
for Annubar In-Line
Annubar Models: DNF+10S, 10H, 10M; DNW+10S; DNT+10S . 7-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Annubar In-Line Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Liquid Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Gas Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4
Steam Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
Liquid Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
Gas Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
Steam Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
iii
SECTION 8:
Hardware Installation for
Annubar Threaded Flo-Tap
Annubar Models: DHT+15S, 25S, 35S . . . . . . . . . . . . . . . . . . . . . . 8-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
ProBar Flo-Tap Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2
Step 1: Determine the Proper Orientation of the ProBar . . . . . . . . . .8-2
Liquid or Steam Service in a Horizontal Pipe . . . . . . . . . . . . . . .8-2
Gas Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .8-3
Liquid or Gas Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . .8-3
Steam Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .8-4
Step 2: Obtain the Required Welding Equipment and Hardware . . .8-4
Step 3: Prepare the Weld-Neck Flange Assembly . . . . . . . . . . . . . . . .8-5
step 4: Attach the Unit Isolation Valve . . . . . . . . . . . . . . . . . . . . . . . .8-6
Step 5: Attach the Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-6
Step 6: Attach the Pressure Drilling Machine . . . . . . . . . . . . . . . . . .8-6
Step 7: Drill the Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-7
Step 8: Remove the Drilling Machine . . . . . . . . . . . . . . . . . . . . . . . . .8-7
Step 9: Install the Flo-Tap Assembly . . . . . . . . . . . . . . . . . . . . . . . . . .8-8
Step 10: Open the Isolation Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-8
Step 11: Tighten the Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-8
Step 12: Insert the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
Standard Drive (IHR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
Gear Drive (IHD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-10
Step 13: Check for Leakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-10
Step 14: Retract the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11
Standard Drive (IHR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11
Gear Drive (IHD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11
Step 16: Close the Isolation Valve . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11
Step 17: Remove the Flo-Tap Assembly . . . . . . . . . . . . . . . . . . . . . . .8-11
iv
SECTION 9:
Hardware Installation for
Annubar Threaded Flo-Tap
(Medium Pressure)
Annubar Models: DMT+15S, 25S, 35S . . . . . . . . . . . . . . . . . . . . . 9-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1
ProBar Flo-Tap Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2
Step 1: Determine the Proper Orientation of the ProBar . . . . . . . . . .9-2
Liquid or Steam Service in a Horizontal Pipe . . . . . . . . . . . . . . .9-2
Gas Service in a Horizontal Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .9-3
Liquid or Gas Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . .9-3
Steam Service in a Vertical Pipe . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
Step 2: Obtain the Required Welding Equipment and Hardware . . .9-4
Step 3: Prepare the Weld-Neck Flange Assembly . . . . . . . . . . . . . . . .9-5
step 4: Attach the Unit Isolation Valve . . . . . . . . . . . . . . . . . . . . . . . .9-6
Step 5: Attach the Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6
Step 6: Attach the Pressure Drilling Machine . . . . . . . . . . . . . . . . . .9-6
Step 7: Drill the Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-7
Step 8: Remove the Drilling Machine . . . . . . . . . . . . . . . . . . . . . . . . .9-7
Step 9: Install the Flo-Tap Assembly . . . . . . . . . . . . . . . . . . . . . . . . . .9-8
Step 10: Open the Isolation Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-8
Step 11: Tighten the Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-8
Step 12: Insert the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9
Standard Drive (IHR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9
Gear Drive (IHD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-10
Step 13: Check for Leakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-10
Step 14: Retract the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-11
Standard Drive (IHR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-11
Gear Drive (IHD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-11
Step 16: Close the Isolation Valve . . . . . . . . . . . . . . . . . . . . . . . . . . .9-11
Step 17: Remove the Flo-Tap Assembly . . . . . . . . . . . . . . . . . . . . . . .9-11
SECTION 10:
Annubar Remote Mounting
SECTION 11:
Direct Mount Annubar
Commissioning
Annubar Valves and Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-2
Impulse Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-3
Equipment Required to Remote Mount the Annubar Transmitter .10-4
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-4
Supplies Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-4
Instrument Manifolds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-4
Location for the Annubar Transmitter . . . . . . . . . . . . . . . . . . . . . . .10-6
Liquid Service up to 250 °F (121 °C) . . . . . . . . . . . . . . . . . . . . . .10-6
Gas Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-8
Steam or Liquid Service above 250 °F (121 °C) . . . . . . . . . . . .10-10
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-1
Commissioning Direct Mounted Annubar Models . . . . . . . . . . . . . .11-2
Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-2
Gas Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-3
Steam Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-4
v
SECTION 12:
Remote Mount
Annubar Commissioning
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-1
Commissioning Remote Mounted Flowmeters . . . . . . . . . . . . . . . . .12-2
Annubar Valve Identification . . . . . . . . . . . . . . . . . . . . . . . . . . .12-2
Zero the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-3
Check for System Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-3
“Calibrate Out” Temperature Effects . . . . . . . . . . . . . . . . . . . . .12-4
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-5
Liquid Service below 250 °F (121 °C) . . . . . . . . . . . . . . . . . . . . .12-5
Gas Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-6
Steam Service or Liquid Service above 250 °F (121 °C) . . . . . . .12-7
SECTION 13:
Optional RTD Maintenance:
Model 3051 Transmitter
SECTION 14:
Optional RTD Maintenance:
Model 3095 Transmitter
SECTION 15:
Troubleshooting
SECTION 16:
Specifications and
Reference Data
APPENDIX A:
Standard ODF Dimensions
Annubar RTD Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-1
Replacing a Direct Mount RTD . . . . . . . . . . . . . . . . . . . . . . . . . .13-3
Replacing a Remote Mount RTD . . . . . . . . . . . . . . . . . . . . . . . . .13-3
annubar RTD Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-1
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-1
Replacing a Direct Mount RTD . . . . . . . . . . . . . . . . . . . . . . . . . .14-3
Replacing a Remote Mount RTD . . . . . . . . . . . . . . . . . . . . . . . . .14-3
Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-1
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-1
Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-1
Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-1
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-2
Standard ODF Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
INDEX
vi
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1
Section
1 Introduction
USING THIS MANUAL
This product manual provides installation, configuration,
calibration, troubleshooting, and maintenance instructions for the
Annubar Flowmeter.
This section contains an explanation of each section of the manual, a
flowchart for using the manual, and an installation checklist.
Section 2: Installation Location and Orientation explains initial
inspection, operating limitations, and in what location and
orientation to install the Annubar Flowmeter.
Section 3: Hardware Installation for Annubar Regular (Threaded, Pak-Lok)
— Models 1295R, DCR -15/16, 2 5/26 , 35/36, 45/46 explains how to install
the direct mounted regular Annubar model for liquid, gas or steam
service.
Section 4: Hardware Installation for Annubar Flanged — Model s 1295F ,
DBF-15/16, 25/26, 3 5/36, 45/46 explains how to install the direct mounted
flanged Annubar models for liquid, gas or steam service.
Section 5: Hardware Installation for Annubar Pak-Lok Flanged —
Models DPF-15/16, 25/ 26, 35/3 6, 45 /46explains how to install the direct
mounted flanged Annubar models for liquid, gas or steam service.
Section 6: Hardware Installation for Annubar Flo-Tap — Model s
DHF-15, 25, 35 explains how to install the direct mounted flanged
Annubar models for liquid, gas or steam service.
Section 7: Hardware Installation for Annubar Pak-Lok Flanged —
Models DHT-15, 25, 35 explains how to install the direct mounted flanged
Annubar models for liquid, gas or steam service.
Section 8: Hardware Installation for Annubar Pak-Lok Flanged —
Models DMT-15, 25, 35 explains how to install the direct mounted
flanged Annubar models for liquid, gas or steam service.
Section 9: Hardware Installation for Annubar In-Line — Models
DNF-10, DNW -10, DNT-10 explains how to install the direct in-line
series Annubar for liquid, gas or steam service.
Section 10: Annubar Remote Mounting explains how to install the
remote mounted Annubar series flowmeter transmitter for liquid,
gas or steam servic e.
Section 11: Direct Mount Annubar Commissioning describes how to
commission a direct mounted Annubar flowmeter after installation.
Section 12: Remote Mount Annubar Commissioning describes how to
commission a remote mounted Annubar flowmeter after installation.
1-1
Annubar Averaging Pitot Tube
Section 13: Model 3051 Transmitter Optional RTD Maintenance
provides information on how to wire your integral or remote RTD and
maintenance for integral RTDs.
Section 14: Model 3095 Transmitter RTD Maintenance provides
information on how to wire your integral or remote RTD and
maintenance for integral RTDs.
Section 15: Troubleshooting provides troubleshooting techniques for
common operating problems associated with the Annubar flowmeter.
Section 16: Specifications and Reference Data provides specification
data for the Annubar flowmeter series.
Appendix A: Standard ODF Dimensions provides mounting height
dimensions necessary for installing the Annubar flowmeter.
INSTALLATION
CHECKLIST
The following list is a summary of the steps required to complete a
Annubar flowmeter installation. If this is an entirely new installation,
begin with step 1. If the mounting is already in place, verify that the
hole size and the fittings match th e recommended specifications, and
begin with step 5.
1. Determine where the Annubar is to be placed within the
piping system.
2. Establish the proper orientation as determined by
the intended Annubar service for the flowmeter.
3. Review Appendix D: Approval Drawings if the
flowmeter is located in a hazardous location.
4. Confirm the Annubar configuration.
5. Drill the correct size hole in the pipe.
• Fo r Annubar models equipped with opposite-side support,
drill a second, identical hole 180 degrees from the first hole.
6. Weld the mounting, and clean the burrs and welds.
7. Measure the pipe’s internal diameter (ID), preferably at 1 x ID
from the hole (upstream or downstream).
NOTE
Providing the pipe internal diameter at the time of purchase is
necessary to maintain published flowmeter accuracy.
1-2
8. Check the fit-up of the Annubar assembly to the pipe.
9. Install the flowmeter.
10. Wire the Annubar transmitter.
11. Supply power to the flowmeter.
12. P erform a zero trim for mounting effects.
13. Check for leaks.
14. Commission the Annubar.
Section
2 Installation Location
and Orientation
This section describes the orientation, location, and alignment limits
for installing the Annubar flowmeter. Read it thoroughly before any
installation is performed.
RECEIVING
AND INSPECTION
ANNUBAR
CONFIGURATIONS
FIGURE 2-1.
Annubar Mounting Configuration
Examples: A (Integral Mount)
and B (Remote Mount).
Annubar flowmeters are available in different models and with
different options, so it is important to inspect and know which
model you have before beginning installation.
Upon receipt of the shipment, check the packing list against the
material received and the purchase order. All items are tagged with a
model number, serial number, and customer tag number. Report any
damage to the carrier.
The Annubar is available in a variety of mounting configurations and
has two methods of electronic mounting: integral mount (o r, direct
mount) and remote mount. An integrally-mounted Annubar may be
shipped with the transmitter already bolted directly to the sensor.
Annubar
Transmitter
Mounting
Configuration
Annubar
Sensor
Annubar
Sensor
Mounting
Configuration
Annubar
Transmitter
AB
8900-8900V30A, 8900_28A
2-1
Annubar Averaging Pitot Tube
BOLTING A T RANSMITTER
TO THE ANNUBAR
3-Valve Manifolds
FIGURE 2-2.
Transmitter Installation for Integral
Mount 3-Valve Manifold Used With
Sensor Size of 15/16, 25/26, 35/36.
If your integral mount Annubar is shipped without a transmitter
previously attached, you will have to assemble the Annubar to the
transmitter. Follow the instructions below according to the type of
manifold and sensor size used with the Annubar.
Sensor Sizes of 15/16, 25/26, 35/36
1. Place the o-rings between the transmitter and the manifold head.
2. Insert hex bolts.
3. Tighten the bolts in a cross pattern, using the appropriate torque.
• Torque lubricated stainless steel threaded bolts to 300 in-lbs.
• Torque non-lubricated carbon steel threaded bolts to
650 in-lbs.
Transmitter
O-Rings (2)
FIGURE 2-3.
Transmitter Installation for Integral
Mount 3-Valve Manifold Used WI th
Sensor Size of 45/46.
3-Valve
Integral Head
Hex Bolts (4)
Sensor Size of 45/46
1. Place the o-rings between the transmitter and the adapter.
2. Place o-rings between the Annubar manifold head
and the adapter.
3. Install the socket head cap screws.
• Torque lubricated stainless steel cap screws to 300 in-lbs.
4. Install the stainless steel studs.
5. Torque the nuts to 300 in-lbs.
Transmitter
O-Rings (2)
Socket
Thread Cap
Screws
O-Rings (2)
2-2
3-Valve Integral
Head
Nuts
Studs
Installation Location and Orientation
5-Valve Manifolds
FIGURE 2-4.
Transmitter Installation for Integral
Mount 5-Valve Manifolds Used With
Sensor Sizes of 15/16, 25/26, or 35/36.
Sensor Sizes of 15/16, 25/26, 35/36
1. Place o-rings between the transmitter and the manifold head.
2. Insert the hex bolts.
3. Tighten the hex bolts in a cross pattern, using the
appropriate torque.
• Torque lubricated stainless steel threaded hex bolts to
300 in-lbs.
• Torque non-lubricated carbon steel threaded hex bolts to
650 in-lbs.
Transmitter
O-Rings
Annubar Direct
Mount Head
Hex Bolts
FIGURE 2-5.
Transmitter Installation for Integral
Mount 5-Valve Manifold Used WI th
Sensor Size of 45/46.
Sensor Size of 45/46
1. Place the o-rings between the transmitter and the adapter.
2. Place o-rings between the Annubar manifold head
and the adapter.
3. Install the socket head cap screws.
• Torque lubricated stainless steel threaded cap screws to
300 in-lbs.
4. Install the stainless steel studs.
5. Torque the nuts to 300 in-lbs.
Transmitter
O-Rings
Manifold
Hex Bolts
O-Rings
Studs
Nuts
Socket Thread
Cap Screws
Annubar Direct
Mount Head
2-3
Annubar Averaging Pitot Tube
STRUCTURAL
LIMITATIONS
FUNCTIONAL
LIMITATIONS
FIGURE 2-6.
Permissible Misalignment
for the Annubar.
CAUTION
Structural limitations are printed on the Annubar sensor tag.
Exceeding the Annubar structural limitations may cause the
sensor to fail.
The Annubar best produces accurate and repeatable flow measurement
under the following conditions:
• The maximum differential pressure, as printed on the tag
attached to the Annubar, is not exceeded.
• The Annubar is not used for two-phase flow or for steam service
below saturation temperature.
Install the Annubar in the correct location within the piping branch to
prevent measurement inaccuracies caused by flow disturbances.
Annubar installation allows for a maximum misalignment of 3 degrees,
as illustrated in Figure 2-6. Misalignment beyond 3 degrees will cause
errors in flow measurement.
3° max.
Straight Run Requirements
3° max. 3° max.
8900-8900V14A
Use Table 2-1 to determine the proper Annubar straight
run requirements.
NOTES
For gas service, multiply values from Table 2-1 by 1.5.
If longer lengths of straight run are available, position the
Annubar where 80% of the run is upstream of the Annubar
and 20% is downstream.
Information contained in this manual applies to circular pipes only.
Consult the factory for instructions regarding Annubar use in square or
rectangular ducts.
Straightening vanes may be used to reduce the required straight run
length and will improve performance.
Row 6 in Table 2-1 applies to gate, globe, plug, and other throttling
valves that are partially opened. If a “through-type” valve will
remain open, use the values shown in Row 5. Refer to Row 6 for the
straight run requirements of a Annubar located downstream of the
control valve.
2-4
TABLE 2-1. Straight Run Requirements.
Installation Location and Orientation
Upstream dimension
Without vanes With vanes
Downstream
Dimensions
1.
2.
3.
4.
In plane AOut of
8
1295-0573B
1295-0573C
1295-0573D
–
11
–
23
–
12
plane A
10
–
16
–
28
–
12
A’ C C’
–
8
–
8
–
8
–
–
4
–
4
–
4
–
–
4
–
4
–
4
–
4
4
4
4
4
4
4
5.
6.
1295-0573E
1295-0573F
1295-0573G
18
30
–
–
–
18
30
–
–
–
8
–
8
–
8
4
–
4
–
4
4
–
4
–
4
4
4
4
4
4
2-5
Annubar Averaging Pitot Tube
ENVIRONMENTAL
CONSIDERATIONS
Annubar Orientation
Horizontal Pipe:
Liquid or Steam Application
Location of the Annubar in pulsating flow will cause a noisy signal.
Vibration can also distort the output signal and comprise the structural
limits of the flowmeter. Mount the Annubar in a secure run of pipe
as far as possible from pulsation sources such as check valves,
reciprocating compressors or pumps, and control valves.
Mount the transmitter to minimize ambient temperature changes.
Section 12: Specifications and Reference Data lists the
temperature operating limits. Mount the transmitter to avoid vibration
and mechanical shock; mounting will also avoid external contact with
corrosive materials. See S ection 8: Annubar Electronics Functions
for environmental considerations.
Proper venting or draining must be considered when selecting a location.
For liquid service, mount the side drain/vent valve upward; this allows
gases to vent. For gas service, mount the drain/vent valve down to allow
any accumulated liquid to drain. In steam service, fill lines with water
to prevent contact of the li ve steam with the electronics; condensate
chambers are not needed because the volumetric displacement of the
electronics is negligible.
Annubar instrument head connections differ on horizontal and vertical
pipes. Refer to the specification head code number to confirm the
proper pipe orientation for your Annubar.
Due to the possibility of air getting trapped in the probe, the Annubar
should be located per the drawing below. The area between 0° and
50° (50° angle) should not be used unless full bleeding of air from the
probe is possible. Figure 2-7 illustrates the recommended location
of the flowmete r.
FIGURE 2-7.
Liquid or Steam Service
in a Horizontal Pipe.
80° (Recommended Zone)
50°50°
8900-8900V15A
2-6
Installation Location and Orientation
Horizontal Pipe:
Air and Gas Applications
FIGURE 2-8.
Air and Gas Applications
in a Horizontal Pipe.
Vertical Pipe: Liquid, Air,
Gas, and Steam Applications
The Annubar should be located on the upper half of the pipe, at least
30° above the horizontal line. Figure 2-8 illustrates the recommended
location of the flowmeter.
120° (Recommended
Zone)
30° 30°
8900-8900V16A
The Annubar can be installed in any position around the circumference
of the pipe, provided the vents are positioned properly for bleeding or
venting. Vertical pipe installations require more frequent bleeding or
venting depending on the location. Figure 2-9 illustrates the
recommended location of the flowmeter.
FIGURE 2-9.
Liquid, Air, and Gas Applications
in a Vertical Pipe.
FIGURE 2-10.
Steam Service in a Vertic al Pipe.
Flow
Opposite-Side Support
360°
Remote mounting is required for steam installations; see Figure 2-10.
Annubar
Remote Head
Instrument Valve
8900-8900V19A
8900-8900_04A
2-7
Annubar Averaging Pitot Tube
Process Connections
(Remote Mounted
Annubar only)
The Annubar process connections on the electronics flange are ¼–18 NPT.
Flange adapter unions with ½–14 NPT connections are su pplied as
standard with the remote mounted Annubar. The threads are Class 2; use
your plant-approved lubricant or sealant when makin g the process
1
connections. The process connections on the electronics flange are on 2
/8inch (54 mm) centers to allow dir ect mounting to a three- valve or five-valve
manifold. Rotate one or both of th e flange adapt ers to attain c onnection
1
centers of 2 inches (51 mm), 2
/8 inches (54 mm), or 2¼ inches (57 mm).
Install and tighten all four flange bolts before applying pressure, or
process leakage will result. When properly installed, the flange bolts
will protrude through the top of the module housing. Do not attempt to
loosen or remove the flange bolts while the Annubar is in service.
Perform the following procedure to install adapters to a
coplanar flange:
1. Remove the flange bolts.
2. Leaving the flange in place, move the adapters into
position with the o-ring installed.
3. Clamp the adapters and the coplanar flange to the
transmitter module using the larger of the bolts supplied.
4. Tighten the bolts. Refer to Mounting Bolts on page 2-9 for
torque specifications.
Failure to install proper flange adapter O-rings can cause process leaks, which can
result in death or serious injury.
The flange adapters require a unique O-ring, as shown below.
Flange Adapter
O-ring
Unique O-ring Grooves
®
When compressed, Teflon
O-rings tend to cold flow, which aids in their
sealing capabilities. Whenever you remove flanges or adapters, visually
inspect the Teflon O-rings. Replace them if there are any signs of
damage, such as nicks or cuts. If they are undamaged, you may reuse
them. If the you replace the O-r ings, retorque the flan ge bolts after
installation to compensate for cold flow. Refer to the process sensor body
reassembly procedure in Section 15 Troubleshooting.
2-8
Installation Location and Orientation
Mounting Bolts
Bolt Installation
TABLE 2-2. Bolt Installation Torque Values.
Bolt Material Initial Torque Value Final Torque Value
Carbon Steel (CS) 300 in-lb (34 N-m) 650 in-lb (73 N-m)
Stainless Steel (SST) 150 in-lb (17 N-m) 300 in-lb (34 N-m)
The following guidelines have been establ ished to ensure a tight fl ange ,
adapter, or manifold seal. The Annubar is shipped with the Coplanar
flange installed with four 1.75-inch flange bolts. The following bolts also
are supplied to facilitate other mounting configurations:
Only use bolts supplied with the Annubar or sold by Rosemount
Inc. as spare parts for the Annubar. Use the following bolt
installation procedure:
1. Finger-tighten the bolts.
2. Torque the bolts to the initial torque value using a cross-pattern
(see Table 2-2 for torque values).
3. Torque the bolts to the final torque value using the
same cross-pattern.
2-9
Annubar Averaging Pitot Tube
2-10
Section
3 Hardware Installation for
Annubar Regular
(Threaded, Pak-Lok)
ANNUBAR MODELS:
DCR+15S/16S
DCR+25S/26S
DCR+35S/36S
DCR+45S/46S
SAFETY MESS AGES
This section provides hardware installation instructions for the
Annubar Regular (Threaded, Pak-Lok) for service in either a horizontal
or vertical pipe. Installation procedures are similar for all services.
Service-specific instructions are provided where necessary; otherwise,
all instructions in this section apply to all services.
If remote mounting of the transmitter is required, use this section for
hardware installation. Then, see Section 10: Annubar Remote
Mounting for transmitter installation.
• The direct mount maximum service temperature is
500 °F (260 °C).
• The transmitter must be remote mounted when service
temperatures exceed 500 °F (260 °C).
• Annubar models with a sensor size of 15 or 16 require
remote mounted transmitter. After installing the sensor, see
Section 6: Annubar Remote Mounting for electronics
installation instructions.
• Annubar models with a sensor size of 45 or 46 are shipped
with a packing guide cover instead of a compression nut.
Instructions and procedures in this section may require special
precautions to ensure the safety of the personnel performing the
operations. Please refer to the following safety messages before
performing any operation in this section.
Explosions could result in death or serious injury:
• Do not remo ve t he transmitt er cover in explosiv e atmospheres when the circuit is aliv e.
• Bef ore connecting a HAR T-based communicator in an e xplosiv e atmosphere, mak e
sure the instruments in the loop are installed in accordance with intrinsically safe or
non-incendive field wiring practices.
• Verify that the operating atmosphere of the transmitter is consistent with the
appropriate hazardous locations certifications.
• Both tr ansmitter cov ers must be f ully engaged to meet explosion-proof requirements.
Failure to follow these installation guidelines could result in death or serious injury:
• Make sure only qualified personnel perform the installation.
3-1
Annubar Averaging Pitot Tube
ANNUBAR REGULAR
COMPONENTS
FIGURE 3-1.
Annubar Regular Components.
Integral 3-Valve
Manifold Head
Annubar Transmitter
STEP 1:
DETERMINE THE PROPER
ANNUBAR ORIENTATION
Figure 3-1 identifies the components of the Annubar Regular. The
flowmeter is shown in this position for hardware clarity; see the actual
installation instructions for proper positioning of the flowmeter.
Compression
Nut
Packing
Follower
Adapter
Body
Packing
Rings (3)
Weld Coupling with
Shaped Support Ring
WeldLock
Ring
Pipe Supplied
by Customer
Flow Sensor
(316L)
Support
Plug
Weld Fitting
(opposite-side
support)
Orientation of the Annubar depends upon two factors: the orientation of
the pipe that will receive the flowmeter, and the service that uses the
pipe. The following sections provide illustrations of the possible pipe
orientations and services. After determining the flowmeter’s
orientation, proceed with step 2 on page 3-5.
8900-8900V18A
Liquid Service in a
Horizontal Pipe
FIGURE 3-2.
Liquid Service in a Horizontal Pipe.
Install the flowmeter within 40 degrees of the vertical axis to prevent
air from becoming entrapped within the probe. Do not position the
Annubar within 50 degrees of the horizontal axis unless full bleeding of
air from the probe is possible. Figure 3-2 illustrates the recommended
location for the Annubar when used with liquid service.
50°50°
80° (Recommended Zone)
8900-8900V15A
3-2
Hardware Installation for Annubar Regular (Threaded, Pak-Lok)
Gas Service in a
Horizontal Pipe
FIGURE 3-3.
Gas Service in a Horizontal Pipe.
Steam Ser vice in a
Horizontal Pipe
Install the flowmeter in the upper half of the pipe, but not within
30 degrees of the horizontal axis, as shown in Figure 3-3 below.
This orientation prevents condensate from becoming entrapped in
the sensor probe.
120° (Recommended
Zone)
30° 30°
8900-8900V16A
Install the flowmeter within 40 degrees of the vertical axis to prevent
air from becoming entrapped within the sensor probe. Do not position
the Annubar within 50 degrees of the ho rizontal axis unless full bleeding
of air from the probe is possible. Figure 3-4 illustrates the recommended
location for the Annubar when used with steam service.
FIGURE 3-4.
Steam Service in a Horizontal Pipe.
80° (Recommended Zone)
50°50°
8900-8900V15A
3-3
Annubar Averaging Pitot Tube
Liquid or Gas Service
in a Vertical Pipe
FIGURE 3-5.
Liquid or Gas Service
in a Vertical Pipe.
Steam Ser vice in a
Vertical Pipe
FIGURE 3-6.
Steam Service in a Vertic al Pipe.
Install the flowmeter anywhere around the circumference of the pipe,
as shown in Figure 3-5. The Annubar transmitter runs in the opposite
direction of the process flow.
Flow
Opposite-Side Support
360°
Install the flowmeter anywhere around the circumference of the
pipe, as shown in Figure 3-6. The Annubar transmitter must be
remote mounted. See Section 6: Annubar Remote Mounting
for instructions.
Annubar
Remote Head
8900-8900V19A
SHIPPING NOTE
Instrument Valve
8900-8900_04A
All Annubar Regular models are shipped with the Annubar sensor
pre-assembled and the Pak-Lok nut, follower, and lock ring in place.
The factory-supplied weld fit ting with support ring is required to
install the Annubar. To prevent injury, remove pressure and drain pipe
before installing or removing the sensor.
3-4
Hardware Installation for Annubar Regular (Threaded, Pak-Lok)
STEP 2:
DRILL THE HOLE
IN THE P IPE
Drill a Hole for
Opposite-Side Support
Follow the steps below to drill the hole in the pipe.
1. Depressurize and drain the pipe.
2. Select the location for the hole you are about to drill.
Select a location anywhere around the circumference of the pipe
for vertical pipes.
For horizontal pipes, the hole location depends upon the service
for which the Annubar is to be used:
• Liquid service: drill the hole along the bottom of the pipe
• Gas service: drill the hole along the top of the pipe
• Steam service: drill the ho le along the bottom of the pipe
3. Determine the diameter of the hole to be drilled. Use the chart
in Figure 3-7.
4. After the hole is drilled, deburr the hole on the inside of the pipe.
A second hole must be drilled for the opposite-side support weld
coupling if opposite-side support is supplied. This hole must be the
same diameter as the first hole; place it directly opposite the first hole
so that the sensor can pass completely through the pipe. Use the
following steps to find the location for the second hole:
1. Wrap a piece of soft wire or string around the pipe to
measure the pipe’s circumference.
2. Remove the wire or string and measure half of the
circumference length.
3. Re-wrap the half-length around the pipe from the
center of the first hole.
4. Mark the center of what will become the second hole,
as shown in Figure 3-7.
FIGURE 3-7.
Sensor Size/Hole Diameter Chart.
Note: Drill the hole 180 degrees from the first hole
for opposite-side support models.
Sensor Diameter (in.)
15/16
25/26
35/36
45/46
Drill the appropriate
diameter hole through
the pipe wall.
5. Deburr the drilled hole on the inside of the pipe.
Drill
7
/16
7
/8
1-5/16
2-1/8
8900-8900_15A
3-5
Annubar Averaging Pitot Tube
STEP 3: TACK WELD THE
FITTINGS TO THE PIPE
FIGURE 3-8.
Tack Weld the Fittings to the Pipe.
Fol low these steps to tack weld the fittin gs to the pipe:
1. Insert the Annubar assembly into the factory-supplied weld
fitting (with integral support ring), then into the hole.
2. Align the head and transmitter so they are parallel
with the ground.
3. Tack weld the fitting(s) to the pipe and remove the Annubar.
See Figure 3-8 below.
The support ring shall be in-line or
parallel to plane of pipe as shown.
8900-8900V20A
NOTE
The larger radius in Figure 3-8 must be parallel to the centerline
of the pipe.
To protect the weld fitting threads from weld splatter, wrap the
factory-supplied heavy aluminum foil around the threads before
welding, or use a thread protector cap, as shown in Figure 3-9.
Be sure to allow the mounting to cool or serious burns may occur.
FIGURE 3-9.
Protect Threads from Weld Splatter:
A (Liquid or Steam Service) and
B (Gas Service).
AB
Protect
Threads
from Weld
Splatter
8900-8900_16A
3-6
Hardware Installation for Annubar Regular (Threaded, Pak-Lok)
STEP 4:
INSERT THE ANNUBAR
INTO THE PIPE
FIGURE 3-10.
Adapter Body and Support Plug
Installation: A (Liquid or Steam
Service) and B (Gas Service).
After the mounting hardware has cooled, install the adapter body and
support plug (if required), as shown in Figure 3-10. Use a sealant
compound rated for use at the process temperature on the threads.
NOTE
The adapter body must be threaded into the weld fitting before the
Pak-Lok nut is threaded onto the adapter body.
AB
Support Plug
Weld Fitting
(opposite-side
support models)
Weld Fitting
Adapter Body
Adapter Body
Weld Fitting
Weld Fitting
(opposite-side
support models)
Support Plug
1. Mark the tip of the Annubar sensor with a marker.
2. Insert the flowmeter into the adapter body until the sensor tip
contacts the pipe wall (or support plug).
3. Remove the flowmeter.
4. Verify that the sensor tip touched the pipe wall. If the tip did not
touch the wall, adjust the adapter body until sensor tip touc hes the
wall, and re-install the Annubar.
5. Install the first packing ring on the Annubar between the lock
ring and the packing follower; take care not to damage the split
packing rings.
6. Push the packing ring into the adapter body and against
the weld-lock ring. Repeat this process for the two remaining
rings, alternating the location of the packing ring split by 180
degrees. Figure 3-11 illustrates the Annubar insertion process
described here.
8900-8900_01A
FIGURE 3-11.
Packing Ring Installation: A (Liquid or
Steam Service) and B (Gas Service).
Weld Fitting
Weld Lock Ring
Packing Follower
Annubar Electronics
AB
Packing Rings (3)
Compression Nut
Annubar
Electronics
Packi ng
Follower
Weld Loc k
Ring
Weld
Fitting
8900-8900V22A
3-7
Annubar Averaging Pitot Tube
NOTE
If the Annubar appears to be too long, go back to step 3. Verify
that the adapter body was installed into the weld fitting before the
Annubar was installed.
7. With the flow arrow on the Annubar head pointed in the direction
of the pipe flow, thread the Pak-Lok nut onto the adapter fitting
until it is hand tight only.
8. Use a wrench to tighten the Pak-Lok nut in ¼ turn increments
until it has been tightened one full turn. The Pak-Lok nut should
be tightened only enough to prevent leakage. Do not overtighten
the Pak-Lok nut; damage to the sensor will result.
NOTE
Use a maximum of 1-¼ turns when installing the sensor . T his is critica l
when installing Annubar models with a sensor size of 15 or 16.
3-8
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