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All dimensions are in milimeters. Dimensions shown with Hy-Lok nuts in finger-tight position, where applicable.


Body Materials
Inlet & Outlet
316SS Brass Alloy 400
Poppet 316SS Brass Alloy 400
O-Ring Viton Buna N Viton
Spring 316SS 302SS Alloy 400
Molybdenum dry film lubricant is used for outer body made of 316SS and Alloy.
Silicone based lubricant is used poppet.

From the graph, the actual cracking pressure of nominal 25PSI is shown to range between 22PSI to 28PSI, and the reseal pressure 16PSI to 22PSI.

Back Pressue may be required to reseal the valves with nominal cracking pressure of 5PSI or lower.


Each valve is cleaned and packaged according to the company standard cleaning procedures.
¡¤ Each valve is tested with nitrogen for cracing and reseal
  performance.
¡¤ Hydrostatic shell test is performed at 1.5 times the working
  pressure
¡¤ Optional tests are available upon request.
Available are various O-Ring materials, whose temperature ratings are shown below.
¡Ø High back pressure is required for PTFE to seal leak-tight.