Hygienic Sanitary Zero Dead Diaphragm Valve
- Model:
- Place of Origin:
- Wenzhou, China
- Material:
- SS316L
- Connection:
- Clamped
- Gasket:
- EPDM+PTFE
- Packing:
- Suitable Packing for Sea/Air Transport
- Quantity:
- 1000 Piece/Pieces per Month
- Payment:
- T/T, L/C, Western Union
- Medium:
- Water
- Specification:
- DN15-DN80
- Shape:
- U Type
A sanitary diaphragm valve isolates process streams from operating drive mechanisms through an elastomeric barrier compressed against an internal weir. Smooth continuous internal radii direct media across a swept path, fulfilling ASME BPE drainability mandates while providing sterile shutoff during automated Clean-in-Place (CIP) and Steam-in-Place (SIP) routines.
Swept U-Bend Hydraulic Loss and Flow Coefficients
Continuous circulation loops require minimal pressure drop across secondary branching stations to sustain turbulent flushing:
| Port Outer Diameter | Swept Bend Radius | Flow Coefficient (Cv) | Equivalent Length Ratio (Le/D) |
|---|---|---|---|
| 0.50 Inch (12.7 mm) | 38.1 mm | 3.2 gpm | 14.5 |
| 1.00 Inch (25.4 mm) | 50.8 mm | 14.8 gpm | 12.2 |
| 1.50 Inch (38.1 mm) | 76.2 mm | 36.5 gpm | 11.0 |
Limiting equivalent length ratios beneath 15 prevents localized flow stagnation. Electropolished contact surfaces with finish levels below 0.38 micrometers Ra minimize wall friction, ensuring stable line pressure during simultaneous point-of-use withdrawals.
Single-Acting Pneumatic Closure and Fail-Safe Response
Automated distribution circuits require rapid valve action to maintain balance throughout pressurized distribution headers. Spring-return pneumatic actuators mounted to hygienic diaphragm valves provide positive fail-close operation during control air outages.
Balanced pre-compressed springs deliver uniform vertical seating force across circular weir surfaces. This uniform motion eliminates side loading against polymer membranes, extending seal integrity during intensive thermal cycling routines.
Mechanical Ferrule Alignment and Joint Integrity
Piping assemblies demand clean disconnect points for system reconfiguration without compromising process sterility. Deploying clamped sanitary diaphragm valves ensures rigid connection alignment across matching tubing ends.
Precision-machined ferrules hold gaskets concentric to pipe bores, preventing elastomeric intrusion into flowing media streams and maintaining sterile boundaries against variable line pressures.
Loop Stagnation Control and Continuous Fluid Scouring
Circulating water systems require unceasing media movement across every withdrawal station to deter biofilm attachment. Fabricating flow paths into a monolithic zero dead valve places internal shutoff surfaces flush against the main process run.
Fluid sweeps through the internal U-conduit continuously, eliminating stagnant fluid columns and maintaining sterile security across pharmaceutical manufacturing facilities.
Product Description
| Material quality: | AISI304, AISI316L |
| Standard: | 3A/DIN/SMS/ISO/IDF |
| Flux domination of pipeline: | DN10-DN50&3/4"-2", applied to the stainless steel pipeline system |
| Working principle: | Remote-controlled operation by the driving gear or manual operation by the handle |
| Three drive forms: | Normally closed, normally opened and opened & closed by two air flues separately. |
| Medium: | Beer, Dairy, Beverage, Pharmacy |
Product Parameter(Size as Manual Type）
