Pneumatic control valve - valve

pneumatic control valve

The pneumatic thin film bellows sleeve regulating valve adopts a top guide structure and is equipped with a multi spring actuator. It has the advantages of compact structure, light weight, sensitive action, S-shaped fluid channel, low pressure drop loss, large valve capacity, precise flow characteristics, and easy disassembly and assembly. Widely used for precise control of gas, liquid and other media, process parameters such as pressure, flow rate, temperature, and liquid level are maintained at given values. Especially suitable for working environments where the pressure difference between the front and rear of the valve is not large and the leakage is allowed to be small.

Product Features:

1. Top guided single seat regulating valve, compact structure, few components, easy to maintain.
2. The metal valve core is suitable for various working environments and meets the IV level leakage standard. The ZXPQ soft seal structure valve core meets the VI level leakage standard.
3. The valve body is designed according to the principles of fluid mechanics as a low flow resistance channel with equal cross-section, increasing the rated flow coefficient by 30%.
4. The adjustable range is large, with an inherent adjustable ratio of 50.
5. The actuator adopts a multi spring structure, reducing height by 30% and weight by 30%.
6. ZXPV type bellows sealed regulating valve forms a * seal on the moving valve stem, blocking fluid leakage.
7. The ZXPJ type regulating valve is equipped with an insulation jacket, which is used in situations where the fluid is prone to crystallization and solidification after cooling, causing blockage.
pneumatic control valve

Valve body and cover: HT200, ZG230-450, ZG1Cr18Ni9Ti
Valve core and seat: 1Cr18Ni9Ti, welded with Stellite alloy
Soft seal valve core: reinforced polytetrafluoroethylene
Packing: polytetrafluoroethylene, flexible graphite
Bellows: 1Cr18Ni9Ti
Gasket: Rubber asbestos board, 10, 1Cr18Ni9Ti, asbestos wrapped gasket
Membrane cover: A3
Ripple film: Nitrile rubber clip reinforced polyester fabric
Spring: 60SIMN
Valve stem and push rod: 2Cr13, 1Cr18Ni9Ti
Lining: 2Cr13

Connection standard:

Flange standard cast iron flange according to GB4216.5-84
Cast steel flange according to GB9113-88 JB/T79-94
Flange sealing surface type: PN10 and PN16 are convex surfaces; PN40 PN64 is a concave convex surface, and the valve body is a concave surface
Gas signal interface of thin film actuator: internal thread M16 × 1.5
Jacket insulation type jacket heat carrier interface: butt welding with a diameter of 18 × 4
*The distance between the valve body flange and the flange end face can be manufactured according to the user's standards
For example, ANSI JIS JPI and other standards