Applications
The divert seat valve is a kind of hygienic pneumatic single seat valve, which is widely applied to the food-processing ,beverage,pharmaceutical
and fine chemical industries.
Working principle:
Seat valves are operated automatically by a single-acting or a double-acting pneumatic actuator. By supplying compressed air, the shaft is moved to turn valve to the "on" or "off" position.
The 180°rotation of the pneumatic cylinder can make normally open and normally closed interchangeable.

Design and features: - Compact and robust design. 3A certified. - Available sizes: from DN 25/1" to DN 100/4". - Normally closed valve (NC) is the standard version. - The valve can be changed to normally open (NO) by simply reversing the position of the pneumatic actuator. - Hygienic design according to 3A standards. - 360° adjustable body. - Open window allows visual inspection of the shaft sealing. - Easily assemble/disassemble the internal parts by loosening the clamp. - Welded connections (mm or inches).

Materials - Parts in contact with medium: AISI 316L - Other parts: AISI 304 - Gasket: EPDM according to FDA 177.2600 - Internal surface finish: Ra ≤ 0.8 μm - External surface finish: bright polish Technical specifications: - Available sizes：DN 25 - DN 100 DN 1"- DN 4" - Working temperature：-10 ℃ to +120℃ (EPDM) 1 4°F to 248 °F+140 ℃ (SIP, max. 30 min) 284 °F - Max. working pressure：10 bar 145 PSI - Compressed air pressure：6-8 bar 87-116 PSI - Air connecitons：G1/8" (BSP) Options: - Gaskets: FPM (Viton (R)) in compliance with FDA 177.2600 - Connections: DIN, Clamp, SMS, RJT, FIL-IDF, etc.

 Recommended configuration
- Double-acting pneumatic actuator.
- "Twin-Stop" actuator.
- External position sensors.
- Steam barrier (if shaft sterilisation is required).
- Jacketed body.
- C-TOP control unit.                                  
- Surface finish: Ra ≤ 0,5 μm
- Manual actuation.
- Material and roughness certificates.
Operating principle:
- The valve body combination is also suitable for the divert seat valve manually.
- The valve body combination with 20 type and 30 type is single-seat valve.
- The valve body combination with 21 type,22 type, 31 type and 32 type is double-seat valve.
Below combination it is reference for diagram of fluid.