Pneumatic Welded Double Seat Mixproof Divert Valve Operation
- Model:
- DVQVLL-C-11
- Place of Origin:
- Wenzhou, China
- Packing:
- Suitable Packing for Sea/Air Transport
- Quantity:
- 1000 Piece/Pieces per Month
- Payment:
- T/T, L/C, Western Union
- Medium:
- Water, Oil
- Material:
- SS304/SS316L
- Connection:
- Welding
- Specification:
- 1 1/2"-4"
- Gasket:
- PTFE, EPDM, NBR
- Shape:
- LL Type
- Type:
- Pneumatic
A mixproof valve redirects process fluids through interconnected sanitary conduits while blocking cross-contamination. Dual independent sealing discs close against separate seating faces, establishing an intermediate atmospheric vent chamber. If an elastomer seal fails during high-pressure cycles, escaping liquid discharges downward through the drainage aperture rather than penetrating active product channels.
Orbital Weld Joint Integrity and Crevice Free Fabrication
Pneumatic actuators deliver millisecond linear displacement across multiport divert housings, routing streams between processing tanks. Direct butt-weld connections eliminate mechanical clamp unions, removing crevice points where bacterial biofilms might develop.
Constructed from low-carbon AISI 316L stainless steel, welded valve bodies withstand aggressive hot caustic washes. Controlled orbital welding with high-purity argon shielding preserves internal passive chromium oxide layers below 0.5 microns Ra.
Orbital Welded Joint Geometry and Quality Verification
The matrix establishes orbital welding parameters and non-destructive inspection criteria across standard tubing dimensions:
| Tube Outer Diameter | Wall Thickness Tolerance | Shielding Gas Purity | Ferrite Number Target | Internal Inspection Acceptance |
|---|---|---|---|---|
| 1.50 Inch (38.1 mm) | ±0.08 mm (ASTM A270-S2) | 99.999% Ultra-pure Argon | < 1.0% FN (WRC-92) | Complete penetration zero concavity |
| 2.00 Inch (50.8 mm) | ±0.10 mm (ASTM A270-S2) | 99.999% Ultra-pure Argon | < 1.0% FN (WRC-92) | Smooth bead flush contour |
| 2.50 Inch (63.5 mm) | ±0.12 mm (ASTM A270-S2) | 99.999% Ultra-pure Argon | < 1.0% FN (WRC-92) | Full root fusion zero discoloration |
| 3.00 Inch (76.2 mm) | ±0.15 mm (ASTM A270-S2) | 99.999% Ultra-pure Argon | < 1.0% FN (WRC-92) | Uniform width zero undercut |
Dynamic Actuation Timing and Hydraulic Surge Mitigation
Coordinated mixproof valve operation depends on digital positioners modulating actuator air pressure. Controlled stroke deceleration cushions moving discs before metal-to-metal contact, preventing destructive pressure waves that stress pipe hangars.
Internal spring returns force plugs into fail-safe isolation postures during unanticipated compressed air failures, ensuring positive product separation.
Process Line Integration and Seat Elastomer Resilience
Welding a double seat mixproof valve into continuous distribution skids prevents leakage risks associated with vibration-loosened fittings. Selecting vulcanized elastomers like EPDM, FKM, or PTFE provides thermal stability across repetitive clean-in-place routines.
Balanced stem geometries counteract fluid dynamic forces during rapid fluid transfers. Installing a mix proof diverter assembly ensures absolute stream isolation across permanent sanitary installations.
Product Description
| Material quality: | AISI304, AISI304L, AISI316, AISI316L |
| Size: | 1/2"-4" |
| Standards: | DIN, SMS, ISO, IDF, RJT, 3A, etc |
| Connection end: | threaded,welded,clamped |
| Types: | L, T, LL, LT,TL,TT |
Product Parameter
Product Pictures
