ZMJBP Pneumatic PTFE lined diaphragm single-seat control valve

Description:

Core /seat：	1Cr18Ni9Ti，Stellite overlay
Soft seated core：	RPTFE
Bellows：	1Cr18Ni9Ti /PTFE
Packing：	rubber asbestos、 1Cr18Ni9Ti，gasket asbestos
Diaphragm cover：	A3
Corrugated diaphragm：	NBR+ polyester fabric
Spring：	30SIMN
Stem、pusher：	2Cr13、1Cr18Ni9Ti
Bush：	2Cr13

Item	Property Indicators
intrinsic error ％	≤±8
hysteresis error％	≤8
Dead band ％	≤6
rated flow coefficient error	≤±10％（Kv≤5,±15％）
Leakage rate	≤0.01％ rated valve capacity