Instruction Manual |
V260 Valve |
D102178X012 |
September 2012 |
|
|
Fisherr V260 Rotary Pipeline Ball Valve
Contents |
Figure 1. Fisher V260 Sectional View |
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
1 |
Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
1 |
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
1 |
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2 |
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
2 |
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4 |
Packing Maintenance . . . . . . . . . . . . . . . . . . . . . . . . |
5 |
Stopping Leakage . . . . . . . . . . . . . . . . . . . . . . . . |
5 |
Replacing Packing . . . . . . . . . . . . . . . . . . . . . . . . |
5 |
Seal Ring Maintenance |
|
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
7 |
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
9 |
Actuator Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . |
11 |
Determining Mounting Position . . . . . . . . . . . . . . . |
12 |
Determining Closed Position . . . . . . . . . . . . . . . . . |
12 |
Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
12 |
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
14 |
W6365-2
Introduction
Scope of Manual
This instruction manual provides installation, operation, maintenance, and parts information for the Fisher V260 control valve. Refer to separate manuals for information concerning the actuator, positioner, and accessories (see figure 1).
Do not install, operate, or maintain a V260 valve without being fully trained and qualified in valve, actuator, and accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important to carefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings. If you have any questions about these instructions, contact your Emerson Process Management sales office before proceeding.
Description
V260 throttling ball valves are available in single-seal, double block-and-bleed, dual-seal, and bidirectional flow constructions with or without attenuators. Valves with dome-style attenuators combine the efficiency of a rotary valve with the noise reducing capability of a special trim (figure 4). Valves without attenuators present little or no restriction to flow at full travel.
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V260 Valve |
Instruction Manual |
September 2012 |
D102178X012 |
|
|
Table 1. Specifications
Valve Body Size and End Connection Styles(1)
NPS 8, 10, 12, 16, 20, and 24 flanged valves with CL150, CL300, and CL600 raised-face or ring-type joint flanges compatible with ASME B16.5. See table 2 for face-to-face dimensions. Consult factory for other pressure ratings.
Maximum Inlet Pressures and Temperatures(1)
Consistent with CL150, CL300, and CL600 pressure-temperature ratings per ASME B16.34
Maximum Allowable Shutoff Pressure Drop(1)
For Single-Seal and Dual-Seal Construction: (Except where further limited by the pressure-temperature rating of valve body material) For LF2 valve body material:
CL150: 19.6 bar (285 psi) at 38_C (100_F) CL300: 51 bar (740 psi) at 38_C (100_F) CL600: 103 bar (1480 psi) at 38_C (100_F)
Seal Material and Temperature Capability(1)
J POM (polyoxymethylene) (Standard) -29 to 82_C (-20 to 180_F)
J PTFE/PEEK(2)(3) (Optional) -29 to 93_C (-20 to 200_F)
Flow Characteristic
Modified equal percentage
Flow and Shutoff Direction
Unidirectional flow for Fisher V260 is forward flow. Seal is upstream.
J Single Seal Constructions: Should be used for unidirectional flow and unidirectional shutoff only.
J Dual Seal Constructions: V260A and V260C may be used for unidirectional or bidirectional flow. V260B should be used for unidirectional flow only for most effective anti-cavitation protection. Bidirectional shutoff requires the dual seal construction.
Shutoff Classification
Single-Seal Composition Constructions: 0.001% of maximum valve capacity (less than 10% of ANSI/FCI 70-2 Class IV and IEC 60534-4)
Dual-Seal Composition Constructions: 0.001% of maximum valve capacity (less than 10% of ANSI/FCI 70-2 Class IV and IEC 60534-4)
Maximum Ball Rotation
90 degrees
Actuator Mounting
Right-hand or left-hand mounted as viewed from the valve inlet for forward flow
Approximate Weight
See table 2
1.The pressure-temperature limits in this instruction manual and any applicable standard or code limitation for valve should not be exceeded.
2.PTFE stands for Polytetrafluorethylene, and PEEK stands for Polyetheretherketone.
3.Temperature limits of PTFE/PEEK is limited due to standard nitrile O-ring. Contact your Emerson Process Management sales office for higher temperature options, up to 232_C (450_F).
Installation
WARNING
DTo avoid personal injury, always wear protective gloves, clothing, and eyewear when performing any installation operations.
DTo avoid personal injury or property damage resulting from the bursting of pressure retaining parts, be certain the service conditions do not exceed the limits given in this manual.
DTo avoid personal injury or property damage that can result from the sudden release of process pressure if valve or mating pipe flange pressure ratings are exceeded, provide a relief valve for over-pressure protection as required by government or accepted industry codes and good engineering practices.
DService conditions are limited for valve and trim material combinations. Do not apply any other service condition to the valve without first contacting your Emerson Process Management sales office.
DPersonal injury could result from packing leakage. The valve packing was tightened before shipment however, the packing might require some readjustment to meet specific service conditions.
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Instruction Manual |
V260 Valve |
D102178X012 |
September 2012 |
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DCheck with your process or safety engineer for any additional measures that must be taken to protect against process media.
DIf installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this instruction manual.
DTo avoid personal injury or property damage, a minimum of two swivel hoists must be used when lifting NPS 24 CL600 assemblies.
Table 2. Face-to-Face Dimensions and Approximate Weights
VALVE SIZE, NPS |
FACE-TO-FACE |
APPROXIMATE WEIGHT |
|
(CL600(1)) |
DIMENSIONS |
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|||
|
mm |
kg |
|
8 |
661 |
424 |
|
|
|
|
|
10 |
788 |
653 |
|
|
|
|
|
12 |
840 |
882 |
|
|
|
|
|
16 |
990.6 |
2472 |
|
|
|
|
|
20 |
1144 |
4313 |
|
|
|
|
|
24 |
1397 |
7257 |
|
|
Inches |
Pounds |
|
8 |
26.04 |
975 |
|
|
|
|
|
10 |
31.04 |
1550 |
|
|
|
|
|
12 |
33.07 |
2025 |
|
|
|
|
|
16 |
39.0 |
5450 |
|
|
|
|
|
20 |
47.0 |
9500 |
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|
|
|
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24 |
55.0 |
16000 |
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|
|
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1. For CL150 and CL300 valves, face-to-face dimensions are the same as CL600 valves.
Key number locations are shown in figure 6, unless otherwise noted.
1.Install a three-valve bypass around the control valve assembly if continuous operation will be necessary during inspection and maintenance of the valve.
2.The valve is normally shipped as part of a control valve assembly, with an actuator mounted on the valve. The valve/actuator assembly is adjusted at the factory before the unit is shipped.
If the valve or actuator has been purchased separately or if the actuator has been removed, mount the actuator according to the Actuator Mounting section and the appropriate actuator instruction manual. Make any necessary adjustments on the bench before installing the valve in the pipeline. With the valve in the pipeline, you cannot see the exact position of the ball to determine the fully open or closed positions.
3.Standard flow direction is shown in figure 6. If possible, install the valve in a horizontal pipeline with the drive shaft horizontal. The actuator can be rightor left-hand mounted in any of the positions shown in the actuator instruction manual. If necessary, refer to the appropriate actuator instruction manual for installation and adjustment procedures.
4.Be certain the valve and adjacent pipelines are free of any foreign material that could damage the valve sealing surfaces. Impurities or entrained solids in the process fluid could plug the passages in the trim. If the process fluid is not clean, install a filter upstream to keep the pipeline free of impurities or entrained solids.
5.Provide appropriate flange gaskets, and place the valve in the pipeline. Tighten flange bolting in a criss-cross sequence to ensure the flange gaskets are loaded evenly.
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V260 Valve |
Instruction Manual |
September 2012 |
D102178X012 |
|
|
Note
Standard Fisher V260 valve packings (key 105) are composed of: D Conductive packing ring (graphite ribbon packing), or
D Partially conductive packing rings (For example: a carbon-filled PTFE female adaptor with PTFE V-ring packing or a graphite-composition packing ring with PTFE/composition packing ring)
In order to electrically bond the drive shaft to the valve body for hazardous area service, an alternate shaft-to-body bonding strap can be provided by using the following step.
Figure 2. Optional Shaft-to-Body Bonding Strap Assembly
VALVE BODY |
ACTUATOR |
|
A |
||
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37A6528-A
A3143-2
VIEW A-A |
A |
6.For hazardous applications, attach the optional bonding strap assembly (key 131) to the valve drive shaft (key 6) with the clamp (key 130) and connect the other end of the bonding strap assembly to the valve body with the mounting cap screw as shown in figure 2.
7.Connect pressure lines to the actuator as indicated in the actuator instruction manual. When an auxiliary manual actuator is used with a power actuator, install a bypass valve on the power actuator (if one is not supplied) for use during manual operation.
8.If the valve has ENVIRO-SEAL™ live-loaded packing installed, an initial re-adjustment may not be required, depending on your application. See the Fisher instruction manual titled ENVIRO-SEAL Packing System for Rotary Valves, D101643X012, for packing instructions and adjustments (see figure 3).
Maintenance
Valve parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of inspection and replacement depends upon the severity of service conditions.
Key numbers are shown in figure 6, unless otherwise noted.
WARNING
Avoid personal injury or equipment damage from sudden release of process pressure or uncontrolled movement of parts. Before performing any maintenance operations:
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Instruction Manual |
V260 Valve |
D102178X012 |
September 2012 |
|
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D Do not remove the actuator from the valve while the valve is still pressurized.
DAlways wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal injury.
DDisconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the actuator cannot suddenly open or close the valve.
D Vent the power actuator loading pressure and relieve any actuator spring precompression.
DUse bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure from both sides of the valve. Drain the process media from both sides of the valve.
DDual-seal valve constructions can retain pressure and process fluid even after process pressure has been removed from both sides of the valve. Relieve this pressure before disassembling or removing the valve from the line. Take additional care if the process fluid is hot, flammable, caustic, or hazardous.
DCarefully secure the valve in an upright position. The roundness of the flanges and valve body allow it to easily roll from side-to-side. The combined weight of the valve/actuator assembly could cause injury or property damage when falling to the side.
D Use lock-out procedures to be sure that the above measures stay in effect while you work on the equipment.
DThe valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings, or when loosening the packing box pipe plug.
D Avoid injury by keeping hands, tools, and other objects away from the ball while stroking the valve.
DCheck with your process or safety engineer for any additional measures that must be taken to protect against process media.
DTo avoid personal injury or property damage, a minimum of two swivel hoists must be used when lifting NPS 24 CL600 assemblies.
Packing Maintenance
Note
For the ENVIRO-SEAL Packing System, refer to the separate ENVIRO-SEAL Packing System for Rotary Valves instruction manual, D101643X012, for maintenance instructions.
Stopping Leakage
For standard PTFE V-ring packing, leakage around the packing follower may be stopped by tightening the packing follower nuts.
If the packing is relatively new and tight on the drive shaft, and if tightening the packing follower nuts does not stop the leakage, the drive shaft may be worn or nicked so that a seal cannot be made. If the leakage comes from the outside diameter of the packing, the leakage may be caused by nicks or scratches on the packing box wall. Inspect the drive shaft and packing box wall for nicks or scratches while performing the following procedure.
Replacing Packing
Replacing the packing requires bleeding off the system and removing the actuator from the valve. Valve/actuator adjustments cannot be made correctly without observing the fully open or closed position of the ball (key 11). It is not necessary to remove the valve from the pipeline, if care is taken to note the position and alignment of the lever and shaft and to not disturb the turnbuckle position.
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