ARB® UTILITY MANAGEMENT SYSTEMS™ WATER|GAS | ELECTRIC
HP PROTECTUS®III
Installation and Maintenance Guide
III INSTALLATION AND MAINTENANCE GUIDE
®
HP PROTECTUS
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ARB® UTILITY MANAGEMENT SYSTEMS™ WATER|GAS | ELECTRIC
HP PROTECTUS®III
Installation and Maintenance Guide
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his manual is an unpublished work and contains the trade secrets and confidential information of
T
Neptune Technology Group Inc., which are not to be divulged to third parties and may not be
reproduced or transmitted in whole or part, in any form or by any means, electronic or mechanical, for
ny purpose, without the express written permission of Neptune Technology Group Inc. All rights to
a
designs or inventions disclosed herein, including the right to manufacture, are reserved to Neptune
Technology Group Inc.
Neptune engages in ongoing research and development to improve and enhance its products. Therefore,
Neptune reserves the right to change product or system specifications without notice.
Trademarks Used in this Manual
Neptune is a registered trademark of Neptune Technology Group Inc.
Other brands or product names are the trademarks or registered trademarks of their respective holders.
Neptune Technology Group Inc.
1600 Alabama Highway 229
Tallassee, AL 36078
USA
Tel: (800) 645-1892
Fax: (334) 283-7299
Ejército Nacional No. 418
Piso 12, Desp. 1201-1202
Col. Chapultepec Morales
Delegación Miguel Hidalgo
11570 México, Distrito Federal
Tel: (525) 55203 5294 / (525) 55203 5708
Fax: (525) 55203 6503
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CONTENTS
OVERVIEW
Contacting Technical Support ........................................................................................................................... 1-1
Before Operation.................................................................................................................................................2-2
HP Turbine Meters..........................................................................................................................................3-1
Adjusting the Calibration Vane ..........................................................................................................................3-2
The High Performance PROTECTUS®III is designed to measure both domestic and fire service water
usage. This unit is intended for installation where one water line serves both domestic and fire
services. In order to achieve maximum performance in actual service, it is essential that these
installation and maintenance instructions be followed.
CONTACTING TECHNICAL SUPPORT
If you encounter any problems with the installation or operation of your HP PROTECTUS III,
please call Neptune at (334) 283-6555 and ask to speak with an Applications Engineer.
HP PROTECTUS INSTALLATION AND MAINTENANCE GUIDE1-1
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CHAPTER INSTALLING HP PROTECTUS III
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This chapter is designed to take you through the installation process for the HP PROTECTUS III.
INSTALLATION INSTRUCTIONS
The HP PROTECTUS III will operate more accurately and reliably if installed and maintained properly. HP
PROTECTUS III meter performance is directly related to the flow conditions of the water entering the turbine
portion of the meter. The entering flow is properly conditioned by a strainer installed immediately upstream
of the turbine portion of the meter.
The HP PROTECTUS III Meter Assembly includes the required UL Listed and FM Approved basket-type
strainer in front of the fire service turbine and bypass. The strainer, in addition to protecting the meter from
debris in the line, also corrects the velocity profile of the flow to the turbine meter and virtually eliminates
the effects of upstream piping variations. Proper service and cleaning of the strainer is important for long
term reliability and performance of the turbine measuring element.
When installing Neptune meters with a strainer, a minimum of four (4) pipe diameters of straight run pipe
(can include components that are fully open in their normal operating position) is required upstream and
downstream of the meter/strainer assembly.
If a Neptune meter is installed without a strainer, a minimum of eight (8) to ten (10) pipe diameters of
straight run pipe (can include components that are fully open in their normal operating position) is required
upstream of the meter inlet and four (4) diameters downstream.
CHAPTERINSTALLING HP PROTECTUS III
RECOMMENDED INST
PROTECTUS III Meter Assembly should be lowered into the meter vault and positioned in the
The HP
setting via chains or straps through the lifting hooks on the top of both the strainer and DC valve. No
attempt should be made to lift the assembly by a single center strap around the meter body, or by either
end alone. The recommended installation of the HP
arrow pointing in the direction of the water flow. The bypass meter may be installed on either side of
mainline meter. Prior to installation, inspect the valve clapper on the detector and check for freedom of
movement. A full size bypass around the assembly is recommended as it provides uninterrupted service
capability during meter servicing periods.
TION AND MAINTENANCE GUIDE
PROTECTUS INST
HP
ALLA
ALLA
TION
PROTECTUS III is in a horizontal position with its
2-1
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RECOMMENDED INSTALLATION (CONTINUED)
As indicated previously, the required UL Listed and FM Approved strainer provides protection against
meter damage from rocks and debris in the lines and virtually eliminates the effects of variations in
upstream piping.
A test port is provided on the top of the detector check valve section to allow a means to field test the meter
without removing it from the line. An optional method of testing the meter is available with the use of a
bypass plug located on the side of the detector check valve. Access to this plug may be limited depending on
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which side of the detector check valve you trim the bypass and the bypass plug’s proximity to the vault wall.
When installing an HP PROTECTUS III Meter Assembly, normal good piping practice should always be
followed. In particular, all gaskets should be centrally located on their flanges with no overlap or interference
CHAPTERINSTALLING HP PROTECTUS III
with the pipe diameter.
The HP PROTECTUS III Meter Assembly must operate in a completely filled line at all times. The downstream
piping must always provide sufficient back pressure to maintain a full line at the meter.
BEFORE OPERATION
Before putting the HP PROTECTUS III Meter Assembly into service, follow these steps:
1.Close all valves (mainline and bypass).
2.Turn air bleed screw on detector check valve and strainer cover counter-clockwise
one to two turns.
3.Slowly open mainline inlet side gate valve to pressurize meter.
4.Close air bleed screws (clockwise) when air is completely vented and no “spitting” occurs.
5.Slowly open outlet side gate valve until downstream line is pressurized.
6.Slowly open upstream ball valve on bypass to pressurize bypass meter.
7.Slowly open downstream ball valve on bypass.
After installation, it is important that the upstream (inlet) valve be put in the “full open” position during
service. All throttling should be done only on the downstream (outlet) side of the meter.
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CHAPTER MAINTENANCE
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If you find that your HP PROTECTUS III is not operating as expected when installed, use the following
guidelines to try to determine the source of the problem.
MAINTENANCE INSTRUCTIONS
HP TURBINE METERS
When maintenance is necessary
, the complete unitized measuring element (UME) may be quickly and easily
interchanged with a factory-calibrated unit by following these steps:
1Close all valves (mainline and bypass).
2Remove cover bolts.
3Remove cover and turbine measuring element from maincase.
4Remove old maincase gasket and replace with a new gasket.
5Install factory-calibrated UME into maincase.
6Replace cover bolts.
CHAPTERMAINTENANCE
7Tighten cover bolts.
8Follow steps 2 through 7 from “Before Operation” section above.
All UMEs have been factory calibrated and should not require field calibration.
The complete UME should be tagged and returned for service to the nearest Neptune Factory. If the customer
does not have a spare unit, a factory-calibrated UME may be purchased directly from Neptune or one of its
authorized distributors. Neptune encourages all customers to purchase either a spare UME or a blank cover
to enable them to avoid service interruptions.
TION AND MAINTENANCE GUIDE
PROTECTUS INST
HP
ALLA
3-1
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CHAPTERMAINTENANCE
ADJUSTING THE CALIBRATION VANE
Neptune equips all new turbine meters and UMEs with a calibration vane. Should field calibration of the
turbine element be required, the following steps should be followed:
1Remove seal pin from register and twist off register.
2Loosen lock nut on adjusting stem by turning counter clockwise.
3Insert slotted screwdriver into slot in top of adjusting stem, and (a) turn clockwise to
decrease registration, or (b) turn counter-clockwise to increase registration.
Turning the adjustment stem 15º in either direction results in approximately one percent change in
registration. The full range of the calibration vane is 180°.
3-2HP PROTECTUS INSTALLATION AND MAINTENANCE GUIDE
Figure 3.1 Calibration Vane
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T-10 DISC METERS
Clean line before installation. Do not distort meter during installation on pipe. If thread compound is used,
o not allow inside meter itself. When desired, owner maintenance is easily accomplished by replacing
d
major components.
DETECTOR CHECK VALVES
Detector Check Valves are water lubricated and virtually maintenance free. Should the valve give
indications of improper operation, including (a) leakage back to the service side of the system, or (b) valve
not open fully on large volume demand, then:
1Remove valve top cover.
2Inspect parts for freedom of movement.
3Inspect valve for obstructions.
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CHAPTERMAINTENANCE
4Move clapper manually to ensure freedom of movement.
5Replace valve top cover.
6If further servicing is necessary, contact Neptune Customer Support.
STRAINER
For maximum efficiency
, determine length of time it takes for baskets to become approximately one-third
clogged. Remove top cover and clean basket. Replace basket in strainer in original position and tighten
cover. Replace gasket if necessary. Spare gaskets will facilitate shorter “shut-down time.” Pressure gauge
installed before and after strainer in line will indicate pressure loss due to clogging and may be used as a
guide to determine when cleaning is required. Strainer is equipped with a flushing port and open-bottom
basket for removal of sediment. In addition, strainer may be equipped with a “blow-down valve” to
facilitate easier cleaning.
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