MK508 nitrogen sealed valve is a valve specially used to relieve pressure of storage tanks. It does not need to be removed for repairing and maintenance, as those might be done on line. It highest sealing level is ANSI VI.

Technical parameters

Dimension: 3/4" (DN20), 1" (DN25), 1-1/4" (DN32)
Connection mode: flange, thread, etc.
Valve body material: soft iron, carbon steel, stainless steel, etc.
Valve element material: Bronze, stainless steel, etc.
Set range: 2.0inches w.c. – 35inches w.c. （ 5.0mbar – 87mbar ）
Application working condition: gas
Cutoff grade: ANSI IV