WARNING Before removing a regulator from the system for service, you must ▪ depressurize system ▪ purge the system to remove any residual system media left in the regulator. Contents Introduction ............................... 3 Installation ..............................4 Operation ..............................5 Maintenance .............................. 6 Testing ................................
Installation WARNING ® When installing a Swagelok self-venting regulator, position the vent connection or line away from operating personnel. Operating personnel must protect themselves from exposure to system fluids. CAUTION Do not use the regulator as a shutoff device. Connections to System Before connecting to system, verify the regulator is closed by turning the handle or adjusting screw: ▪...
Operation Note: All directions are when viewed from above. ▪ Outlet and control pressure settings are obtained by adjusting the set screw with a 13 mm open end wrench. ▪ To increase the outlet or control pressure, rotate the set screw clockwise. ▪...
Points of attention before assembly ▪ All parts must be clean and undamaged before starting assembly. ▪ Swagelok recommends replacing all o-rings before assembly. ▪ All threaded parts must be lightly lubricated before assembly to avoid galling of threads. ▪...
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Assembly instructions ▪ Clamp the body in the vice, with the bodyplug side upwards. ▪ Place the correct o-ring around the seat and place the seat in the body. ▪ Place the correct o-ring, the valvering, the valvespring and the valve into the bodyplug. ▪...
Testing Check the regulator for leakage across the seat, with low- and high inlet pressure. Check the regulator for leakage across the piston, with low- and high outlet pressure. Check the required outlet pressure range. A well performing regulator is 100 % bubble tight. If there is a leakage across the seat or the piston or leakage to the outside, the damaged parts must be replaced.
Troubleshooting Problem: The outlet pressure creeps up, without turning the setscrew. Cause: A damaged valve and/or seat. Solution: Replace the valve and/or the seat. Problem: Leakage around the body plug. Cause: A damaged o-ring or insufficient torque on the body plug. Solution: Replace the o-ring ring or tighten the body plug according to the torque specifications.
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