External Stem Thread – Packing below stem threads. Stem Threads are protected from process media (non-wetted), helps to prevent stems from galling.
Stem with cold rolled threads
Blow-out proof Needle
Spring Washers for compensation of thermal expansion
Back Seat – Metal to metal secondary needle seal
Color Coded Dust Cap for operating thread protection
Max. allowable (Working) Pressure (PS) 420 bar (6,092 psi)
TA-Luft conform
Anti-Tamper Valve Head Options available
PTFE or Graphite Packing
Bonnet Seal Ring: Graphite
All non-wetted parts in 316 stainless steel
Attention: Packing adjustment may be required during the Service life of the valves. Valves that have not been cycled for a period of time may have a higher Initial actuation torque.
