Overview

 ZJHM new series Fine Small Pneumatic Control Valve with top guide structure, with many spring machine structure. With compact structure, light weight, action quick, filling body channels in an s-shaped streamlined, small pressure drop loss, and the appearance of the valve, large volume, precise flow characteristic, convenient tear open outfit. Widely used in the precise control of gas, liquid mass medium, such as process parameters such as pressure, flow rate, temperature and liquid level in a given value. Particularly applicable to allow small pressure difference before and after the valve leakage is the workplace. This series product standard, adjust cut type, bellows seal type, jacket type thermal insulation and other products. The nominal pressure level products are PN10, 16, 40, 64; Body diameter range 3/4 "~ 8”. Apply to current temperature from 200 ℃ ~ 560 ℃ range class. Leakage level standard level IV or VI. Flow characteristic of linear or equal percentage. A variety of specifications to choose from.

The major parts material:

 the body and bonnet: HT200, ZG230-450, ZG1Cr18Ni9Ti

 core and seat: 1 Cr18Ni9Ti division too lai alloy

soft seal valve core: enhanced ptfe   packing: ptfe, flexible graphite

bellows: 1 Cr18Ni9Ti

gasket: rubber asbestos board, 10, 1 Cr18Ni9Ti, asbestos winding gasket

membrane cover: A3

corrugated diaphragm: nitrile butadiene rubber spring clamp reinforced polyester fabric: 60 simn    stem ,push rod: 2 Cr13, 1 Cr18Ni9Ti

bushing: 2 Cr13