Diaphragm Valve Types
Weir Type Diaphragm Valve
- Raised weir body profile
- Smaller diaphragm deflection
- Longer diaphragm life
- Better throttling control
Straight Through Diaphragm Valve
- Full bore, minimal restriction
- Higher flow capacity
- Self-draining design
- Ideal for viscous fluids
U-Type Diaphragm Valve
- Modified weir for tank bottom
- Complete vessel drainage
- Zero dead space
- CIP/SIP optimized
Technical Specifications
| Parameter | Range / Standard |
|---|---|
| Size Range | DN8 - DN150 (1/4" - 6") |
| Body Material | Stainless Steel 304 (1.4301), 316L (1.4404) |
| Diaphragm Materials | EPDM, PTFE/EPDM laminated, Silicone, FKM (FDA compliant) |
| Surface Finish | Ra ≤ 0.8μm inner surface; mirror polish |
| Pressure Rating | PN10 / PN16 (10 bar / 16 bar) |
| Temperature Range | -20°C to +130°C (EPDM); -20°C to +150°C (PTFE) |
| Connection Types | Weld, Clamp, Thread, Flange |
| Actuation | Manual, Pneumatic, Electric |
| Design Standards | DIN, SMS, ISO, ASME BPE |
| Certifications | FDA, USP Class VI, 3A, CE, ISO 9001 |
Industry Applications
- Pharmaceutical: WFI distribution, formulation, sterile processing — USP Class VI diaphragms
- Biotechnology: Cell culture media, fermentation, downstream purification — Zero contamination design
- Food Processing: Sauce, condiment, and ingredient handling — FDA compliant materials
- Dairy: Milk, yogurt, and cheese processing — CIP/SIP compatible
- Semiconductor: Ultrapure water, chemical delivery — Ultra-high purity construction
- Cosmetics: Cream, lotion, and serum production — Corrosion resistant 316L
FDA Compliant
USP Class VI
3A Certified
CE Marked
ISO 9001
Need a Diaphragm Valve Solution?
Our sanitary valve engineers can recommend the optimal diaphragm valve type, diaphragm material, and actuation for your pharmaceutical, biotech, or food processing application.
Email: info@chlgvalve.com Call: +86-15601794339