Products

Product overview

The new series pneumatic diaphragm straight through single seat regulating valve adopts top guide structure and is equipped with multi spring actuator. The utility model has the advantages of compact structure, light weight, sensitive action, s-streamline filling channel, small pressure drop loss, large valve capacity, accurate flow characteristics, convenient disassembly and assembly, etc. It is widely used to accurately control gas, liquid and other media, and keep the process parameters such as pressure, flow, temperature and liquid level at the given value. It is especially suitable for working occasions where the allowable leakage is small and the pressure difference before and after the valve is small.

This series of products have many varieties, such as standard type, regulating cut-off type, bellows sealing type, jacket insulation type and so on. The nominal pressure grades of products are PN10, 16, 40 and 64; The diameter range of valve body is DN20~200. Applicable fluid temperature ranges from - 200℃ to 560℃. Leakage standards include level IV or level VI. The flow characteristic is linear or equal percentage. A variety of varieties and specifications are available.

Product parameters

Valve body and bonnet: HT200, zg230-450, zg1cr18ni9ti

Valve core and valve seat: 1Cr18Ni9Ti, stellite alloy surfacing

Soft sealing valve core: Reinforced Polytetrafluoroethylene

Packing: PTFE, flexible graphite

Bellows: 1Cr18Ni9Ti

Gasket: Rubber asbestos plate, 10, 1Cr18Ni9Ti, asbestos spiral wound gasket

Membrane cover: A3

Corrugated diaphragm: nitrile rubber clip reinforced polyester fabric

Spring: 60simn

Valve stem and push rod: 2Cr13, 1Cr18Ni9Ti

Bushing: 2Cr13