Pneumatic UHV Gate Valve

VAT’s Series 108 Pneumatic UHV Gate Valve is the standard valve for ultra-high vacuum (UHV) isolation applications in research and industry. Pneumatic valves come standard with a position indicator and without a solenoid valve. Solenoid valves are available upon request.

Main Features

  • Sizes: DN 63–200 (2.5″–12″)
  • Actuator: pneumatic double acting
  • Body material: stainless steel
  • Feedthrough: bellows
  • Standard flanges: ISO-LFB (ISO-F), CF (fixed)
  • Sealing technology: VATLOCK

Technical Data

  • Leak rate:
    • valve body: < 5×10-10 mbar ls-1
    • valve seat: < 1×10-9 mbar ls-1
  • Pressure range:
    • DN 63–200: 1×10-10 mbar to 1.6 bar (abs)
    • DN 250–320: 1×10-10 mbar to 1.2 bar (abs)
  • Differential pressure on the gate:
    • DN 63–200: ≤ 1.6 bar
    • DN 250–320: ≤ 1.2 bar
  • Differential pressure at opening: ≤ 30 mbar
  • Cycles until first service: 50,000
  • Temperature:
    • Valve body: ≤ 250°C open / ≤ 200°C closed
    • Pneumatic actuator: ≤ 200°C
    • Solenoid valve: ≤ 50°C
    • Position indicator: ≤ 80°C
  • Heating and cooling rate: ≤ 50°C h-1
  • Material:
    • Valve body: AISI 304 (1.4301)
    • Mechanism:
      • DN 63–200: AISI 316L (1.4404)
      • DN 250–320: AISI 304 (1.4301)
    • Bellows: AISI 316L (1.4404, 1.4435)
  • Seal:
    • Bonnet: metal
    • Gate: FKM (Viton)
  • Mounting position: any
  • Solenoid valve: 24 V DC, 5.4 W (others on request)
  • Position indicator contact rating:
    • Voltage: ≤ 50 V AC/DC
    • Current: ≤ 1.2 A
  • Valve position indication: visual (mechanical)

*Dimensions are in inches unless otherwise specified

Part IDReference NumberSize (in) Size (mm) Flange Ends 3D CADDrawingUnit PriceIn StockQty, Add To Cart
Part IDVAT10836-PE24Reference NumberVAT10836-PE24Size (in) 2-1/2Size (mm) 63Flange Ends LFB633D CADLoginDrawingLoginUnit Price$2,669.00Contact
Part IDVAT10838-PE24Reference NumberVAT10838-PE24Size (in) 3Size (mm) 80Flange Ends LFB803D CADLoginDrawingLoginUnit Price$3,482.00Contact
Part IDVAT10840-PE24Reference NumberVAT10840-PE24Size (in) 4Size (mm) 100Flange Ends LFB1003D CADLoginDrawingLoginUnit Price$3,482.00Contact
Part IDVAT10844-PE24Reference NumberVAT10844-PE24Size (in) 6Size (mm) 160Flange Ends LFB1603D CADLoginDrawingLoginUnit Price$4,492.00Contact
Part IDVAT10846-PE24Reference NumberVAT10846-PE24Size (in) 8Size (mm) 200Flange Ends LFB2003D CADLoginDrawingLoginUnit Price$5,736.00Contact
Part IDVAT10848-PE24Reference NumberVAT10848-PE24Size (in) 10Size (mm) 250Flange Ends LFB2503D CADLoginDrawingLoginUnit Price$9,640.00Contact
Part IDVAT10850-PE24Reference NumberVAT10850-PE24Size (in) 12Size (mm) 320Flange Ends LFB3203D CADLoginDrawingLoginUnit Price$14,879.00Contact
Part IDVAT10836-UE24Reference NumberVAT10836-UE24Size (in) 2-1/2Size (mm) 63Flange Ends CF4503D CADLoginDrawingLoginUnit Price$2,669.001
Part IDVAT10838-UE24Reference NumberVAT10838-UE24Size (in) 3Size (mm) 80Flange Ends CF4623D CADLoginDrawingLoginUnit Price$3,482.00Contact
Part IDVAT10840-UE24Reference NumberVAT10840-UE24Size (in) 4Size (mm) 100Flange Ends CF6003D CADLoginDrawingLoginUnit Price$3,482.00Contact
Part IDVAT10844-UE24Reference NumberVAT10844-UE24Size (in) 6Size (mm) 160Flange Ends CF8003D CADLoginDrawingLoginUnit Price$4,492.00Contact
Part IDVAT10846-UE24Reference NumberVAT10846-UE24Size (in) 8Size (mm) 200Flange Ends CF10003D CADLoginDrawingLoginUnit Price$5,736.00Contact
Part IDVAT10848-UE24Reference NumberVAT10848-UE24Size (in) 10Size (mm) 250Flange Ends CF12003D CADLoginDrawingLoginUnit Price$9,640.00Contact
Part IDVAT10836-CE24Reference NumberVAT10836-CE24Size (in) 2-1/2Size (mm) 63Flange Ends CF450 - Metric3D CADLoginDrawingLoginUnit Price$2,669.00Contact
Part IDVAT10838-CE24Reference NumberVAT10838-CE24Size (in) 3Size (mm) 80Flange Ends CF462 - Metric3D CADLoginDrawingLoginUnit Price$3,482.00Contact
Part IDVAT10840-CE24Reference NumberVAT10840-CE24Size (in) 4Size (mm) 100Flange Ends CF600 - Metric3D CADLoginDrawingLoginUnit Price$3,482.00Contact
Part IDVAT10844-CE24Reference NumberVAT10844-CE24Size (in) 6Size (mm) 160Flange Ends CF800 - Metric3D CADLoginDrawingLoginUnit Price$4,492.00Contact
Part IDVAT10846-CE24Reference NumberVAT10846-CE24Size (in) 8Size (mm) 200Flange Ends CF1000 - Metric3D CADLoginDrawingLoginUnit Price$5,736.00Contact
Part IDVAT10848-CE24Reference NumberVAT10848-CE24Size (in) 10Size (mm) 250Flange Ends CF1200 - Metric3D CADLoginDrawingLoginUnit Price$9,640.00Contact