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Summary of Contents for Flowserve Valtek Mark Six
- Page 1 U SER IN S T RU C T ION S Valtek Mark Six Cryogenic ® ™ Service Control Valves Installation, Operation, Maintenance Instructions Experience In Motion...
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Page 2: Table Of Contents
Reassembly of the Mark Six ......... 4 Removing the actuator ......... 6 The Valtek Mark Six is a globe-style, single-seat, top-entry valve with a Reassembling the actuator ........6 fabricated cold box extension for use in cryogenic applica tions down to Troubleshooting ............ -
Page 3: Installation
<25° from horizontal. For any questions or clarification, please contact the factory. The Valtek Mark Six top-entry design allows for easy trim 1. Before installation, clean the line of all dirt, scale, welding chips and inspec tion and service without removing the valve body from other foreign material. -
Page 4: Replacing The Soft Seat
Inspecting the screwed-in seat ring 1. Unscrew the seat ring using the correct seat ring assembly tools. Assembly tools are available from Flowserve by refer encing Table 2. NOTE: Flats are machined on the tool, so a wrench may be used to Spring-Energized turn the seat ring. - Page 5 Gland Flange (Item No. 80) Gland Flange Upper Stem Guide Bolt and Nut (Item No. 87) (Item Nos. 107,118) Bonnet (Item No. 40) Packing Set Bonnet Flange (Item No. 88) Stud and Nut (Item Nos. 108/1 Bonnet Flange Packing Spacers (Item No.
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Page 6: Removing The Actuator
Table 2: Seat removal tools and seat torque values Recommended Valve Size Trim Handle Kit Head Torque No.* Kit No. (in) (ft-lb/N-m:+/-10%) 0.12 0.25 0.5–1.0 0.38 Handle 0.50 165088.999 28/38 0.62 Body 0.75 165081.999 0.75–1.0 0.81 1.00 143434.999 1.25 143359.999 33/45 Seat Ring 1.62... -
Page 7: Troubleshooting
Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed 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. - Page 8 Flowserve Corporation Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function safely during its useful life. 5215 North O’Connor Blvd. 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.
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