Related Manuals for Flowserve Valtek Mark Two
Summary of Contents for Flowserve Valtek Mark Two
- Page 1 USER INSTRUCTIONS Flowserve Valtek Control Products Installation Operation Mark One and Mark Two Control Valves Maintenance FCD VLENIM0001-02-A4 – 08/15 Experience In Motion...
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Page 2: Table Of Contents
Valtek Mark One and Mark Two Control Valves FCD VLENIM0001-02-A4 - 05/16 Contents 1 General Information 2 Unpacking 3 Installation 4 Quick Check 5 Valve Maintenance 6 Disassembly and Inspection 7 Assembly and Installation 8 Severe Service Trim Options 8.1 CavControl 8.2 ChannelStream 8.3 Diamondback 8.4 MegaStream... -
Page 3: General Information
(e.g. protective clothing, gloves, glasses etc.). The following instructions are applicable to the maintenance and installation of Flowserve Valtek Mark One and Mark Two globe and 1.5 Qualified Personnel angle body design control valves. These instructions cannot claim to... -
Page 4: Unpacking
*Optional angle body Figure 1: Mark One Control Valve Body Assembly 2 Unpacking Flowserve will not accept deliveries if a cleaning certificate has not been provided. Return authorization is also required before parts are returned. Contact your local Flowserve representative While unpacking the valve, check the packing list against the to obtain return authorization. -
Page 5: Installation
Stroke the valve and observe the plug position indicator on may be. Flowserve‘s standard body bolting material is the stem clamp compared to the stroke indicator plate. The B7/2H. B8/8 (stainless steel) is optional for applications plug should change position in a smooth, linear fashion. -
Page 6: Valve Maintenance
Valtek Mark One and Mark Two Control Valves FCD VLENIM0001-02-A4 - 05/16 *Optional angle body Figure 2: Pressure Balanced Mark One Control Valve Body Assembly 5 Valve Maintenance CAUTION: Do not overtighten packing. This can cause At least once every six months, check for proper operation by excessive packing wear and high stem friction that may following the preventative maintenance steps outlined below. -
Page 7: Disassembly And Inspection
If valve is ing positioners and providing maintenance to actuators. air-to-close, proceed to step 6.3. Current User Manuals are available at www.flowserve.com. Remove the bonnet flange bolting and lift actuator, bonnet Verify that the takeoff arm and follower arm are not binding and plug out of the valve. -
Page 8: Figure 3: Exploded View Mark One Body Assembly
Valtek Mark One and Mark Two Control Valves FCD VLENIM0001-02-A4 - 05/16 Gland Bolting (Items #109, 117) Gland Flange (Item #80 ) Body Bolting (Items #108, 114) Bonnet Flange (Item #70) Upper Guide (Item #87) Upper Packing (Item #88) Packing Spacers (Item #94-99) Lower Packing Lower Guide... -
Page 9: Table Ii - Flange Bolting Torque Per Bolt Material
13370 ± 1337 8060 ± 806 10930 ± 1093 12650 ± 1265 17150 ± 1715 10340 ± 1034 14020 ± 1402 * Contact Factory for deep cryo or bellows seal valves. NA = Studs not available in these sizes flowserve.com... -
Page 10: Assembly And Installation
7 Assembly and Installation NOTE: Separate User Manuals with instructions on assembling actuators, positioners and other equipment can be found on www.flowserve.com. Review any relevant User Manual before proceeding NOTE: It is recommended that all soft goods are replaced when rebuilding Mark One and Two control valves. Soft... - Page 11 If the valve has been taken out of the line, make sure the the actuator and / or the valve during the bonnet tightening flow arrow indicates proper flow direction upon reinstalla- sequence. This is due to the inability of most electric / hy- tion. 7.15 Adjust and test all accessories. flowserve.com...
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Page 12: Severe Service Trim Options
Use the following steps if the retainer must be disassembled to clean or inspect for damage. ChannelStream retainers in pressure classes 900 and higher cannot be disassembled in the field. Contact your local Flowserve representative for service options. 8.2.4.1 Carefully grind away the small bead welds located on the assembly pins near the top of the retainer. -
Page 13: Diamondback
Take the discs apart, maintain- ing the order of assembly. Replace damaged discs, alignment pins bolts or nuts. Inspect and clean out disc passages. Figure 11: Mark One with TigerTooth Trim Body Assembly flowserve.com... -
Page 14: Megastream
Mark One design. Assembly and disassem- tom disk on and replace the bolts/studs. Bolts must be torqued, bly of the valve follows the standard procedures. torque values are available from your local Flowserve contact. 8.6.2 TigerTooth retainers, plugs and seats should be CAUTION: To function properly, DiamondBack is always examined for damage when disassembled. -
Page 15: Table Iii: Troubleshooting Chart
3. Trim sized too large for flow rate reduced trim Reconfirm direction and, if necessary, correct flow direction 1. Incorrect flow direction through valve Valve does not fail in correct position 2. Incorrect actuator fail direction Consult actuator User Manual and change fail direction flowserve.com... - Page 16 Republic of Singapore 638824 to perform its intended function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot Phone: 65 6879 8900 provide specific data and warnings for all possible applications.
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