Stainless Steel Sanitary Automatic Membrane Control Valve with 4~2mA Positioner

Stainless Steel Sanitary Automatic Membrane Control Valve

Pneumatic sanitary membrane control valve is suitable for various pressure, temperature, flow and other physical quantity adjustment, such as food, pharmaceutical, cosmetics, clean steam, alcohol, beverage, biochemical industrial process control occasions. It has the advantages of compact structure, convenient assembly and disassembly, and high adjustment accuracy, especially in the small pressure drop loss, large flow, wide adjustable range, and high flow accuracy, which fully meets the IEC534-1-1978 standard. The valve leakage volume complies with the ANSIB16.104 standard. The regulating valve is equipped with different multi-spring actuators and has a large output force.

Features and benefits:

The angular design ensures self-draining of the valve, standard electronic polishing, and smooth surfaces ensure cleanliness, no medium accumulation area, and no potential pollution. Quick disassembly of valve body and bonnet makes valve opening and maintenance quick and easy, and shortens process downtime.

Technical parameters of pneumatic diaphragm sanitary control valve

Body type: angle cast ball type (standard type) tee, straight through, multi-way, etc. (variant products)

Nominal diameter: Dn25, 40, 50, 65, 80, 100mm

Nominal pressure: PN1.0MPa

Connection type: clamp type, thread type, flange type (if there is no contract agreement, it will be supplied as a clamp type connection)

Material: stainless steel SS304, SS316L

Filling material: EPDM, PTFE

In-valve components

Spool type: single seat plunger type spool

Flow characteristics: equal percentage (E%); straight line (L)

Material: stainless steel 304SS, 316SS, 316LSS

Type of actuator: multi-spring diaphragm actuator

Diaphragm material: ethylene-propylene rubber with nylon

Spring range: 1.5 ～ 3kg / cm2 (0.15 ～ 0.3MPa)

Air source interface: M16 × 1.5

Ambient temperature: -30 ～ + 70 ℃

Body type: air-open or air-close

Accessories: valve positioner, hand wheel mechanism, air filter pressure reducing valve, stroke switch, valve position transmitter, etc.

Performance of pneumatic diaphragm sanitary control valve:

Leakage: less than 0.01% of rated Kv

Backlash: with positioner: less than 1% of full stroke; without positioner: less than 3% of full stroke

Basic error: with positioner: less than ± 1% of full stroke; without positioner: less than ± 5% of full stroke

Adjustable range: 50: 1

Kv value and allowable pressure difference of pneumatic diaphragm sanitary control valve

Nominal diameter 25 40 50 65 80 100

KV value 11 16 28 45 63 100

Allowable pressure difference MPa 1.0 0.6 0.4