Sanitary Point Of Use Zero Dead Leg Solenoid Diaphragm Valve
- Model:
- DFVM2-2-22
- 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
- Material:
- SS316L
- Connection:
- Clamped-Welded
- Gasket:
- EPDM+PTFE
- Shape:
- U Type
A sanitary diaphragm valve isolates process streams from operating drive mechanisms through an elastomeric barrier compressed against a raised weir. This geometry eliminates dynamic shaft seals, satisfies ASME BPE drainability mandates, and guarantees hermetic shutoff during automated Clean-in-Place (CIP) and Steam-in-Place (SIP) thermal routines.
Recirculation Manifold Geometry and Dead Leg Elimination
Continuous loop circulation prevents particulate settling and bacterial colonization along distribution mains. Installing a zero dead leg diaphragm valve integrates the weir structure directly into the process pipeline wall.
Machining the valve seat directly from a solid forged 316L block eliminates pipe branch extensions, maintaining turbulent flow across the seal boundary and reducing stagnation zones well within strict ASME BPE dimensional requirements.
Internal Cavity Clearance and Hold-Up Volume Performance
Minimizing internal fluid retention shortens rinse sequences and protects expensive formulated media during batch changeovers:
| Port Size Configuration | Internal Liquid Hold-Up | Gravitational Drain Angle | Water-for-Injection Flush Volume |
|---|---|---|---|
| DN 15 (0.50 Inch) | Less than 0.8 mL | 20 to 30 Degrees | 1.2 Liters |
| DN 25 (1.00 Inch) | Less than 2.1 mL | 20 to 30 Degrees | 2.8 Liters |
| DN 50 (2.00 Inch) | Less than 5.6 mL | 25 to 35 Degrees | 6.5 Liters |
Smooth internal transitions prevent eddy generation inside the seat pocket. Electro-polishing internal surfaces below 0.38 micrometers Ra enables full liquid clearing under standard gravity drainage.
Cleanroom Distribution Terminals and Point-of-Use Operations
Secondary process branches deliver purified fluids directly to batch formulation tanks and filling units. Configured as a point of use valve, the assembly delivers rapid media sampling and complete isolation without contaminating circulating loop headers.
The compact weir alignment prevents product hold-up between draws, supporting immediate steam sanitization across processing cycles.
Automated Pilot Control and Pneumatic Actuation Response
Complex skids require rapid valve sequence cycling across automated cleaning routines. Connecting a direct-mount sanitary solenoid valve delivers pressurized air straight into the pneumatic operator chamber.
This pilot arrangement eliminates external airline runs, cuts stroke signal lag under 50 milliseconds, and ensures positive seat closure against transient line pressure surges.
Product Description
| Control mode: | Manual Type & Pneumatic Type |
| Size : | 1/2",3/4",1",1.5",2" |
| Operation : | Normal Open & Normal Close design |
| Connection type: | Clamp or Weld or other |
| Connection: | INCH: 1/2"-2", DIN - ISO: DN10-DN50. other size can be requirement. |
| Working temp: | ASSEMBLING Diaphragm:EPDM(-40 C -150 C0 PTFE/EPDM(-10 C-150 C) |
| Working pressure: | 10 Bar |
| Standard : | OD/ID mirror polished. ID Ra<0.8um. OD- Sand Blasted .or E/P or other ,ID C Ra<0.5um(SF1) or E/P Ra0.3um(SF4) can be requirement. |
