HAL-LOK
Female VCR Diaphragm Sealed Valve
SKU FDGM-4-LC-PCTFE
Model and Connection Size
Seat Material
Female VCR Diaphragm Sealed Valve. Select the documented size and construction for quotation.
Features:
Diaphragm metal-to-metal sealed to atmosphere
Optimal design for long cycle life
-
Handle with window provides visual indication of OPEN and CLOSE positions
Technical specification
| Size | 1/4" | 3/8",1/2" | 3/4" |
|---|---|---|---|
| Flow Coefficient | 0.27 | 0.7 | 1.7 |
| Maximum working pressure | 250 psi (17.2 bar) | 250 psi (17.2 bar) | 250 psi (17.2 bar) |
| Working Temperatute | PCTFE | -40°C to 80°C(-40°F to 176°F) | -40°C to 80°C(-40°F to 176°F) |
| Working Temperatute | PFA,Vespel® | -26°C to 177°C(-15°F to 350°F) | -26°C to 177°C(-15°F to 350°F) |
| Leak Rate | ≤1×10-9std cm3/s(He) | ≤1×10-9std cm3/s(He) | ≤1×10-9std cm3/s(He) |
Models, sizes and drawing dimensions
| Catalogue basic reference | Specification |
|---|---|
| FDGM-4 | VCRSize: 1/4in.; Dimensions,mm / A: 70.6; Dimensions,mm / B: 11.0; Dimensions,mm / C: 63.0; Dimensions,mm / D: 40.0; Dimensions,mm / E: 25.0; Dimensions,mm / F: 26.0; Dimensions,mm / G: 25.4; VCR size: 1/4 in.; Maximum working pressure: 250 psi (17.2 bar); Cv: 0.27; Seat options: PCTFE: -40 to 80°C; PFA or Vespel: -26 to 177°C; Internal/external helium leak rate: ≤1×10⁻⁹ std cm³/s |
| FDGM-8 | VCRSize: 1/2in.; Dimensions,mm / A: 86.0; Dimensions,mm / B: 16.0; Dimensions,mm / C: 76.0; Dimensions,mm / D: 40.0; Dimensions,mm / E: 36.0; Dimensions,mm / F: 36.0; Dimensions,mm / G: 28.0; VCR size: 1/2 in.; Maximum working pressure: 250 psi (17.2 bar); Cv: 0.7; Seat options: PCTFE: -40 to 80°C; PFA or Vespel: -26 to 177°C; Internal/external helium leak rate: ≤1×10⁻⁹ std cm³/s |
Available options
| Option | Values |
|---|---|
| Material | 316L Stainless Steel |
| Seat material | PCTFE | PFA | Vespel |
Diaphragm Valve Seat Options
Seat: PCTFE (-40 to 80°C) | PFA (-26 to 177°C) | Vespel (-26 to 177°C). Maximum working pressure: 250 psi (17.2 bar). Confirm the selected construction and rating.
Ordering notes
- Internal LABCON suffix identifies seat choice; catalogue basic model retained.
Catalogue drawing dimensions are nominal. Pressure and temperature ratings depend on the selected material, seals and configuration. Confirm the complete manufacturer ordering code with the quotation.
Source references and links are provided in the product documentation fields.
Technical Specifications
| Model | Female VCR Diaphragm Sealed Valve |
|---|