I.Introduction
ZJHP(M) pneumatic single seat (sleeve) control valve is made up of pneumatic multi spring diaphragm
actuator and lower flow resistance straight single seat valve(sleeve). The single valve is connected
directly with its guilding structure on the cap; with its corn is ram structure, which is smaller and lighter than normal single seat valve and its flux is bigger than
normal sleeve valve. It is widely applied in industry process and automatic controlling system.
II.Main Parts Material
Body type: Straight line single seat (sleeve) foundry valve style
DN:  DN20~300mm
PN:   PN1.6    4.0    6.4MPa
Connecting way: Flange style JB78-59  JB/T79.2-94 concave style
Material : HT200  ZG230—450  ZG1Cr18Ni9Ti  ZG0Cr18Ni12M02Ti
Back cover: Normal temperature -20~+200℃
Heat elimination type -40~+450℃
Packing: V-pattern PTFE, soft graphite, stainless steel bellows
Trim
Trim type: Upper-operated single seat (sleeve)ram core
Flow characteristics: linearity , percentage character or quick opening character
Material: 1Cr18Ni9Ti   0Cr18Ni12Mo2Ti