Professional Manufacturer of Hygienic Divert Seat Valve/Reversing Valve/Single Seat Valve

Sanitary Divert Seat Valve is one of the constructive types of control pipeline valves. This is the most commonly used type of control valve for both continuous (analog) and discrete control of flow and pressure.

Divert Seat Valve perform this task by changing the flow rate of the medium through their flow area. The material of manufacture of reversing valve depends directly on the type of working medium with which the valve will come into contact. In reversing valves, a plunger serves as a movable element, which can be needle, rod or poppet. The plunger moves perpendicular to the flow axis of the medium through the seat (or saddles), changing the flow area.

The most common ones are double-seat valves, since their shutter is well balanced, which allows them to be used for continuous pressure regulation up to 6.3 MPa in pipelines with a diameter of up to 300 mm, while using actuators of lower power than single-seat ones. Single-seated valves are most commonly used for small bore diameters due to their unbalanced plug.

Also, the advantage of two-seat valves is that with such a design it is much easier to ensure the tightness required for shut-off and control valves using a plunger that has a special regulating profile for contact with one seat, and for fitting into another seat – a sealing surface for tighter contact.

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sanitary stainless steel single seat valve

Factory/Manufacturer of Sanitary Stainless Steel Reversing Valve

The stainless steel pneumatic sanitary reversing valve is mainly used for the purpose of reversing or stopping the medium. Because of its superior sealing and cleanability, it is widely used in various sanitary industries.

Working principle of sanitary pneumatic reversing valve:
Pneumatic cut-off/reversing valve series is to convert the energy generated by compressed air into mechanical energy, which will drive the axial movement of the valve stem, so that the position of the moving sealing component will control the opening and closing of the pipe port, and finally reach the medium For the purpose of reversing or staying, the manual cut-off reversing valve series is ultimately for the purpose of medium reversing or staying through manual manipulation of the handle.

Standard design of sanitary pneumatic reversing valve:
Various standard valve series can be provided to customers, namely for DIN standard series, 3A standard series, SMS standard series, ISO/IDF standard series, BS/RJT standard series, ASME/BPE and other standard series.

Reference for selection of sanitary pneumatic reversing valve:
This series of valves has two valve forms: cut-off type and reversing type. The cut-off type valve can be made with two or three pipe connections, and the reversing type valve can be made with three to five pipes. The diversity of interfaces fully meets the needs of the market.

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sanitary stainless steel reversing valve

Pneumatic Shut-off Reversing Single Seat Valve And Double Seat Diverter Valve

Pneumatic Shut-off Valve is a pneumatic actuated hygienic single seat valve. It is operated automatically by a single acting or double acting air actuator, our Pneumatic shut-off and diverter valve is widely used for the application such as food processing industry, beverage production, pharmaceutical and fine chemical industries etc. Sansun offers full line sanitary valves to reduce your budget and improve your business well etc.

Design and Features

  • Compact and robust design. 3A certified valve.
  • Available sizes: from DN25 to DN100.
  • Normally closed valve(NC) in 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 lantern allows visual inspection of shaft sealing.
  • Easy assembly/disassembly of internal parts by loosening a clamp fastener.
  • Standard weld connections (mm or inches).


  • Wetted Parts: AISI 316L, AISI 304
  • Other parts: stainless steel 304
  • Gasket: EPDM acc. to FDA 177.2600
  • Internal surface finish: Ra? 0.8?m
  • External surface finish: bright polish

Technical specifications

  • Working temperature: -10°C to +120°C(EPDM)/ 14°F ~ 248°F
  • +140°C (SIP, max.30min) / 284°F
  • Max. working pressure: 10bar 145PSI
  • Compressed air pressure: 6-8 bar   87-114PSI
  • Air connections: G1/8″ (BSP)


  • Available sizes: DN25-DN100  / 1″- 4″
  • Gasket: FPM(Vition)(R) in compliance with FDA 177.2600.
  • Connections: DIN, Clamp, SMS, RJT, FIL-IDF, etc
  • Double-acting pneumatic actuator.
  • “Twin-Stop” actuator.
  • External position sensors.
  • Steam barrier (if shaft sterilization is required).
  • Jacketed body.
  • C-TOP control unit.
  • Surface finish: Ra<0.5um.
  • Manual actuation .
  • Material certificates.

Sketch of NO and NC Pneumatic Actuator:

pneumatic shut-off single seat valve

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