Flowserve TSQVIOM Durco Mach 1 Severe Service Valve IOM User Manual

MACH 1 TSQV SEVERE SERVICE PLUG VALVES

10 6. Install the diaphragm over the plug stem. The diaphragm guide must be used to install the diaphragm. Make sure there are no nicks on t

11 10. Following insertion of the packing set, the diaphragm gland pusher is placed over the plug stem. Seat the packing by loading the gland pus

12 Figure 11 14. Place the top cap gasket into the valve body flange counterbore. 15. Apply a thin, even film of silicone, or approved lubricant

2 FOREWORD The Flowserve Corporation has established this Installation, Operating and Maintenance Manual to facilitate field installation, operat

3 SECTION I INSTALLATION INSTRUCTIONS – FLANGED AND WELDED TSQV PLUG VALVES FLANGED: Installation of Flowserve flanged valves is best accomplishe

4 SECTION II OPERATION INSTRUCTIONS AND PARTS LIST FOR TSQV VALVES Part reference cited in this section can be identified using Figures 1-3 (Sect

5 Stuffing Box Options: The Durco TSQV valve will accommodate standard packing of most manufacturers. A. Standard Polymer Cup and Cone B.

6 SECTION III MATERIALS, FASTENER TORQUES & FIGURES Durco Material Code Cross-Reference

7 SECTION III (CONT.)

8 SECTION IV TSQV VALVE DISASSEMBLY Recommended Precautionary Measures 1. Valves must be relieved of process fluid and pressure prior to disa

9 SECTION V VALVE ASSEMBLY 1”-6” TSQV WITH SLEEVE NOTE: Part number reference is shown in Figures 1-3, Sec III. 1. Mount body (Part 1) on