Shape style	Pneumatic diaphragm three-way regulating valve
Nominal diameter	DN15～DN200
Nominal pressure	PN10, 16,25,40,50, 64,
Body and bonnet material	WCB, CF8, CF8M, CF3, CF3M, WC1, WC6, WC9, LCB, LCC, LC3, Hastelloy C, etc.
Internal material	304, 304+Stellite, 316L, 316L+Stellite, 2205, Hastelloy C, etc.
Fill in material	V-type polytetrafluoroethylene; flexible graphite
Flow characteristics	Equal percentage, linear, quick opening
Leakage	Hard seal: IV, V grade
Connection method	Flange type
Bonnet type	Standard type, heat sink type, bellows seal type, low temperature type

The pneumatic film three-way regulating valve is guided by a cylindrical thin-walled window-shaped spool, which is different from the bushing guiding of the plunger-shaped spool. Equipped with a multi-spring actuator. The utility model has the advantages of simple structure, light weight and small volume. Easy to disassemble and so on. It is widely used to precisely control media such as gas and liquid. Process parameters such as pressure, flow temperature and liquid level are kept at a given value. It is suitable for the case where one fluid is divided into two through a three-way valve or two liquids are combined into one fluid through a three-way valve.

Pneumatic control valve

Fluorine-lined regulating valve