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Other Pneumatic Valves

Pneumatic Sanitary Diaphragm Valve

Min. Order: 1 Set
Delivery time: 25 days
Production Capacity: 1000 set/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Product description: The diaphragm of Pneumatic Sanitary Diaphragm Valve separates the inner cavity of the lower valve body from the inner cavity of the upper valve cover, so that the valve stem, valve disc and other par
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Overview

The diaphragm of Pneumatic Sanitary Diaphragm Valve separates the inner cavity of the lower valve body from the inner cavity of the upper valve cover, so that the valve stem, valve disc and other parts above the diaphragm are not corroded by the medium.

The opening and closing of the valve diaphragm is controlled by the action of the pneumatic actuator, and the intelligent controller, positioner, position feedback device, etc. can be expanded to meet various needs of automatic control.

Working principle

The structural feature of the pneumatic diaphragm valve is that a set of thin hemispherical metal films are clamped in the valve body as a barrier between the valve stem and the fluid. Valve closure is achieved by the stem tip and metal diaphragm pressing the disc against the seat. The valve is opened by an internal spring, and when the stem lifts out of contact with the diaphragm, the disc lifts. Since the stroke of the valve is equal to the stroke of the diaphragm, the characteristic lift of this valve is much smaller than that of ordinary valves.

Structural features

1. In the process of processing, the flow channel is precisely polished and sterilized;
2. The sealing ring is fully closed, tightly enveloping the valve ball, without any gap or dead angle;
3. Improved EPDM's new EPDM polymer uses high-strength braided material to ensure strong strength and durability;
4. The use of vulcanization technology increases the service life and bending times when used in steam;
5. Both ends are connected by clamps, which is convenient for disassembly, cleaning and maintenance.

Technical specifications

◎Specification: 1"-4", DN25-DN100
◎Pressure: 10bar (145 PSI)
◎Material: ASTM 316L, 1.4404, 1.4435 NB2 Fe＜0.5%
◎Temperature: -20°C to 150°C (according to diaphragm material)
◎Connection: clamp, welding, thread, 3A BPE DIN SMS IDF ISO
◎Valve body structure: Straight-through, three-way, U-shaped three-way, tank bottom valve, multi-channel diaphragm valve
◎Diaphragm material: EPDM+PTFE (double layer)/EPDM/Silicon/FPM (Viton)