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DV1 – Manual 1/4-plus Turn Valves
The DV1 Series Diaphragm Valves are totally free of springs, bellows, packing, o-rings and lubricants in the process wetted area.
Metal-to-metal seals to atmosphere ensure that there is no transport of undesirable elements into the flow stream, and no escaping of process material into the atmosphere.
Elgiloy® diaphragms ensure the utmost in corrosion resistance and extend overall valve life.
- 2-way on/off control
- Metal-to-metal seals to atmosphere to prevent leakage
- Wide variety of materials for virtually all applications
- No dynamic O-rings, springs, or lubricant in wetted flow path to eliminate sample contamination
- Very low internal volume (0.16 cc)*
- Manual ¼-plus turn or pneumatic actuation
- Pressures from vacuum (50 torr) to 3600 psig (248 bar)**
- 40μ sintered stainless steel air inlet fi lter extends life of pneumatic actuator
Applications
- Analytical Instrumentation
- Petrochemical
- Pharmaceutical
- Chemical
1
| Body | 316L stainless steel, MONEL® and HASTELLOY® C-276 |
| Seats | PCTFE and PEEK™ |
| Diaphragms | Elgiloy®AMS 5876 |
| Orifice Size | 0.110˝ (2.8 mm) |
| Flow Capacity | 0.17 Cv |
| Valve Internal Volume* | 0.16 cc |
| Leakage | 1 × 10-9 cc/sec helium (inboard) |
* Internal volume in machined passages of the valve body between mounting surface and sealing diaphragm(s).
Operating Pressures
| Operating Pressure* | Vacuum (50 torr) to 3600 psig (248 bar) |
| Proof Pressure | 7200 psig |
| Burst Pressure | 14,400 psig (497 barg) |
Operating Temperatures
| Seat Material | ¼-PLUS TURN TEMPERATURE |
| PCTFE | ‘-40°F to 212°F (-40°C to 100°C) |
| PEEK™ | ‘-40°F to 400°F (-40°C to 204°C) |
* Valves cleaned for oxygen service are limited to 3000 psig (207 bar).
Support Materials
Flow Formulas