Aseptic Pneumatic Mixproof Shut Off Valve
- Model:
- Place of Origin:
- Wenzhou, China
- Packing:
- Suitable Packing for Sea/Air Transport
- Quantity:
- 1000 units per Month
- Payment:
- T/T, L/C, Western Union
A mixproof valve isolates incompatible fluid streams passing through a common pipe intersection without cross-contamination. The mechanical architecture incorporates two independent sealing plugs creating an atmospheric vent chamber. If an elastomeric seal deteriorates, escaping liquid drains outward through the vent port rather than entering the parallel flow path, protecting product sterility during active processing routines.
Atmospheric Cavity Dynamics and Sealing Verification
The matrix illustrates functional fluid isolation across sanitary and steam sterilization routines:
| Operating State | Flow Path Configuration | Contamination Defense |
|---|---|---|
| Product Routing | Independent flow along upper or lower conduits | Atmospheric vent isolates opposing fluid streams |
| Seat Sanitation | Chemical flushing via controlled seat lifts | External drain channels rinse liquids outside |
| Thermal Purging | Saturated steam circulation across barrier ports | Continuous condensate discharge halts ingress |
| Seat Seal Failure | Discharged fluid escapes through atmospheric vent | Zero pressure equalization between line headers |
Pneumatic Stem Displacement and Steam Barrier Enclosures
Operating an aseptic mixproof valve integrates a continuous steam barrier around the reciprocating shaft. When switching fluid lines, pneumatic actuators move internal stems upward or downward to reroute liquid streams across polished ports.
Saturated steam continuously purges the barrier enclosure, preventing airborne microorganisms from entering sterile product zones. Machined AISI 316L stainless steel housings resist aggressive caustic flushes and hot acid wash cycles.
Digital Positioning Logic and Water Hammer Elimination
Proper mixproof valve operation depends on digital positioning units tracking exact plug stroke distances. Precision displacement feedback confirms tight seal seating during pulsation cycles without inducing hydraulic shocks.
The contoured internal flow path dampens velocity spikes, eliminating pipe vibration and fluid water hammer across high-pressure manifolds. Calibrated return springs guarantee rapid shutoff seating if supply air pressure drops below minimum operating limits.
Manifold Integration and Thermal Expansion Control
Facilities adopting double-seat mixproof valve arrays replace manual jump lines and eliminate processing downtime. Selecting appropriate elastomeric compounds such as EPDM or fluoroelastomers avoids premature material swelling under extreme sterilization temperatures.
Properly balanced plug geometries stabilize line pressure differentials, ensuring dependable fluid containment across hygienic processing operations. Precise port orientation accommodates diverse skid layouts, optimizing drainability without residual pocket accumulation.
Product Description
| Body Material: | SS316L |
| Seal Material: | PTFE |
| Size: | 1", 1.5", 2" |
| Working Pressure: | ≤0.8Mpa |
| Connection end: | Welded,clamped |
| Roughness: | Outside Ra≤0.6μm, Inner Ra≤0.4μm |
| Max. Temperature: | 150 degree C |
| Mpa Gas pipe connection: | G1/8" |
