Jordan Valve Mark H-900 User Manual

I & M Mark H-900, H-1500 and
H-2500 Series
3170 Wasson Road • Cincinnati, OH 45209 Phone 513.533.5600 • Fax 513.871.0105 (f) info@richardsind.com • www.jordanvalve.com
Warning: Jordan Valve Control Valves must only be used, installed and repaired in accordance with these Installa­tion & Maintenance Instructions. Observe all applicable public and company codes and regulations. In the event of leakage or other malfunction, call a qualified service person; continued operation may cause system failure or a general hazard. Before servicing any valve, disconnect, shut off, or bypass all pressurized fluid. Before disassem­bling a valve, be sure to release all spring tension.
IntroductIon
Contained in this manual are installation instructions, maintenance and parts information for the Mark H-900, H-1500 and H-2500 Series Valve Bodies. Refer to the appropriate manuals for instructions for the accompa­nying actuator, positioner and additional accessories.
Only trained or experienced personnel should carry out the operation and installation of all pressure equip­ment. If you have any questions regarding the equip­ment, contact your Jordan Valve representative. A serial number identifies each Mark H Series valve and is stamped on the valve body. Please reference this number when communicating with your Jordan Valve representative.
Installation & Maintenance Instructions for the
Mark H-900, H-1500 and H-2500 Series Globe
Style Control Valves
3. For continuous service applications, Jordan Valve recommends a standard three-valve maintenance bypass be installed. This allows isolation of the valve body without shutting down the pipeline system.
4. The valve should be positioned on the line so the flow direction indicator corresponds to the direction of flow in the pipeline.
Note: The effectiveness of the pressure-energized seal will be compromised if return ow exists where the downstream pressure exceeds up­stream pressure. The result could be leakage or damage to the seal.
InstallatIon
These valves should not be installed in systems that exceed the ANSI specified temperature and pressure ratings. Inspect the valves for shipping, damage and foreign debris when uncrating.
Be sure to use proper hoists with chains or slings when uncrating and handling these valves. Refer to Table 1 in the data sheet for valve body weights.
2. Install approved gaskets between the valve body and the pipeline flanges. For butt weld ends on the Mark ET Series trim configuration, remove gaskets and seal rings prior to welding the body into the pipeline.
5. The valve body should be positioned with the actuator vertically above it. It is possible to position the valve with an orientation below vertical with support supplied for the actuator. Support for the actuator is required if there is excessive vibration in the line, or if the valve body is positioned more than 45 degrees off vertical.
Mark H-900, H-1500 and H-2500 Control ValVes
Parts reference
Body Parts (Figures 1 & 2)
Key Description
1 Drive Screws
2 Flow Arrow
3 Valve Stem
4 Bonnet Gasket
5 Cage Gasket
6 Inner Piston Ring
6a Outer Piston Ring
6b Seal Ring
7 Body
8 Hex Nuts
9 Stud Bolts
10 Groove Pin
11 Valve Plug
12 Cage
13 O-Ring Retainer
14 Pipe Plug (Optional)
15 Retaining Ring
16 Backup Ring
Figure 1: Mark H-900, H-1500 and H-2500 Valve Body Showing Mark ED Trim
Figure 2: Mark H-900, H-1500 and H-2500 Valve Body Showing Mark ET Trim
Bonnet Parts (Figure 3)
Key Description
17 Bonnet
18 Packing Flange
19 Stud Bolts
20 Hex Nuts
21 Packing Set
22 Packing Spring
23 Packing Spring
24 Packing Box Ring
25 Felt Wiper
26 Packing Follower
27 Pipe Plug
28 Locknut
Bonnet Parts Not Shown
Key Part Name
29 Individual Packing Rings
30 Individual Packing Rings
31 Pipe Nipple for Lubricator
Isolating Valve
32 Lubricator / Isolating
Valve or Lubricator
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series H-900, H-1500 and H-2500 Control ValVes
MaIntenance
Internal valve components are subject to normal deterio­ration and must be inspected and replaced as required. The necessity of inspections and replacement of parts will depend on the severity of service conditions. Inspec­tions and maintenance must be carried out on a regular basis.
Before beginning any maintenance, it is important to iso­late the control valve and release all pressure contained in the valve body and the actuator.
Packing Replacement
These instructions refer to the replacement of single or double TFE V-Ring, Garlock and Grafoil packing. Key numbers refer to Figures 1, 2 and 3.
1. Release all loading pressure in the actuator and remove control lines.
2. Remove the cap screws from the stem connecter and detach the halves of the stem connecter.
Figure 3: H-900, H-1500 and H-2500 Bonnet Parts
3. Unscrew the yoke locknut (Figure 3, Key 28) and separate the actuator from the bonnet (Figure 3, Key 17).
4. Remove the hex nuts (Figure 1, Key 8) and lift the bonnet (Figure 3, Key 17) and valve plug and stem assembly from the valve body (Figure 1, Key 7). Set those components on a clean surface and protect the gasket sealing serrations in the bottom of the bonnet. These serrations are essential for a tight seal between the body and bonnet during reassembly.
5. Remove the bonnet gasket (Figure 1 and 2, Key 4).
6. Loosen the packing flange nuts (Figure 3, Key
20) so the packing becomes loose around the stem.
7. Remove the hex nuts from the valve plug stem (Figure 1, Key 3) and pull the valve plug and stem assembly out of the bonnet. Place this assembly on a protective surface.
8. Remove the hex nuts (Figure 3, Key 20), the packing flange (Figure 3, Key 18), the packing follower (Figure 3, Key 26) and the felt wiper (Figure 3, Key 25).
Table 1: Recommended Bonnet Bolt Torque
Body
Size
(in)
3 404 548 404 548
4 540 732 540 732
Class H-900 &
Ft-lb N-m Ft-lb N-m
Figure 4: Typical Bolting Pattern
Bonnet Bolt Torque
Class H-2500
H-1500
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Mark H-900, H-1500 and H-2500 series Globe style Control ValVes
Packing Replacement cont'd
9. Use a packing hook to remove the packing parts, or push them toward the top of the bon­ net using a small rod. Be careful not to scratch the wall of the packing box.
10. Clean the metal packing parts and the pack­ ing box, and check the valve stem and pack­ ing box surfaces for nicks or scratches. Remove any light scratches with sanding. If damage exists that cannot be sanded out, the valve plug stem and bonnet must be replaced.
11. Install a new bonnet gasket (Figures 2 and 3, Key 4) onto the cage (Figures 2 and 3, Key
12).
Note: The valve plug assembly of the ED and ET t inside the cage with tight tolerances. When install­ing the valve plug assembly be sure not to damage the piston rings or the seal ring (Figures 2 and 3, Keys 6, 6a, 6b).
When the bonnet is being mounted, the threads of the valve plug stem will slide through the packing box. If the packing has been installed, carefully at­tach the bonnet to avoid cutting the packing on the stem threads.
14. Refer to Figure 3 and arrange the packing parts as outlined. Slide the new packing care fully over the valve plug stem, and ensure that the packing parts are not damaged by the threads of the valve plug stem.
15. Reinstall the packing flange and hex nuts (Keys 18 and 20). Tighten the hex nuts until the shoulder of the packing follower (Key 26) is snug against the packing box.
16. Mount the actuator onto the valve body assem­ bly and reconnect the actuator and valve stem referring to procedures in the appropriate ac­ tuator manual.
12. Insert the valve plug assembly in the cage, mounting the bonnet onto the body. Ensure that the leak-off piping (or pipe plug, Figure 3, Key 27) is facing downstream.
13. Apply lubricant to the body stud bolts (Figures 1 and 2, Key 9) and the hex nuts (Figures 1 and 2, Key 8). Thread the nuts onto the body stud bolts using good bolting practices. Refer to Table 1 for proper bolt torques and tighten the nuts in a criss-cross pattern (See Figure 4). When the control valve assembly reaches operating temperature, repeat the procedure. Proper tightening of the bonnet nuts ensures a positive sealing of the cage seals and the spring seal.
Note: Repeating the bolting pattern may be neces­sary since tightening one nut may loosen an adja­cent nut. The body-to-bonnet seal will be complete when none of the nuts will turn at the recommended torque.
Figure 5: Packing Arrangements
See Table 1 for Recommended Torque Values
GARLOCK is a registered trademark for packings, seals, gaskets and other products of Garlock.
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