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ZXPD Pneumatic Diaphragm Control Valve
Product Description: ZXPD pneumatic thin film low-temperature angle regulating valve is a regulating valve used in low-temperature and deep cold applications. Adopting a long neck valve cover for insulation and equipped with a multi spring actuator structure, it has the advantages of compact overall structure, light weight, and good stability. The valve body adopts a precision cast angular structure and is made of aluminum alloy, which has good low temperature resistance. The bellows seal ensures that the regulating valve does not leak in low-temperature situations. Therefore, it is widely used in low-temperature and cryogenic applications such as metallurgy, air separation, oxygen production, petroleum, chemical industry, etc. Specially suitable for precise control of process parameters for low-temperature gases and fluids (such as liquid oxygen, liquid argon, etc.) to maintain given values. This series of products comes in two types: connection plate installation type and floating sleeve installation type. The nominal pressure rating is PN0.6MPa, and the valve body diameter range is DN20~100. It is suitable for various grades in the fluid temperature range of -60 ℃~-250 ℃. There are two leakage levels, IV and VI, and the flow characteristics are linear or equal percentage. A variety of varieties and specifications are available for selection.
Product Features: Bottom in and side out, simple flow path, low resistance, large valve body capacity Dual directional, good stability of valve operation Large adjustable range, with an inherent adjustable ratio of 50 The bellows seal forms a complete seal for the moving valve stem, blocking fluid leakage Adopting a floating sleeve connection for easy installation Floating sleeve installation type Warm jacket, used in situations where the fluid is prone to crystallization and solidification after cooling, causing blockage.
Material of parts: Valve body: LF4 Valve stem: 1Cr18Ni9 Valve cover: 1Cr18Ni9 wave Texture tube: 1Cr18Ni9 Valve core and seat: 1Cr18Ni9 Gasket: Copper, 1Cr18Ni9 Executing Agency: Type: Multi spring thin film actuator ZP280B/K，ZP400B/K，ZP600B/K， Valve function: positive action, negative action Membrane material: Nitrile rubber clip reinforced polyester fabric Spring range: 20-100KPa, 40-200KPa, 80-240KPa Gas supply pressure: 0.14-0.4MPa Signal interface: Internal thread M16 × 1.5 (M10 × 1) Environmental temperature: -30 ℃~+70 ℃
Attachment (configured according to requirements) Positioner, air filter pressure reducing valve, handwheel mechanism, limit switch, solenoid valve, valve position transmitter, relay, holding valve, others
Nominal pressure Mpa Nominal diameter (mm) Rated flow coefficient (Kv) Inherent flow characteristics medium name Working temperature and range Operation mode of the whole machine Pressure set point and adjustment range Valve body, valve internals, and packing materials Attached attachments Other special requirements
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