The Asco 8262G090VH Solenoid Valve (8262G90VH) is a direct-acting, normally closed valve built for high vacuum environments down to 10⁻⁶ Torr. The valve features precision-cleaned NBR elastomers and a brass body that supports reliable isolation and venting across the vacuum breaker, suction release, and roughing pump service.
Technical Specifications
- Valve Type: Direct Acting, Normally Closed, 2-Way
- Pipe Size: 1/4″ NPT
- Flow Factor (Cv): 0.96
- Operating Pressure Differential:
- Minimum Operating Pressure: 0 psi
- AC Maximum: 15 psi (Vacuum Service)
- Maximum Fluid Temperature: 180°F (82°C)
- Body Material: Brass
- Seal Material: NBR (Degassed and Cleaned – VH Suffix)
- Voltage Options:
- AC: 24, 120, 240, 480 V (60 Hz); 110, 220 V (50 Hz)
- Watt Rating:
- AC: 6.1/F
- Solenoid Enclosure:
- Standard: NEMA 4X, IP65 (Watertight, Corrosion-Resistant)
- Optional: Explosionproof & Watertight (Types 3-9), Raintight (Types 3, 7, 9)
Key Features and Functionality
- Normally Closed Operation: Closes in power-off state for vacuum isolation.
- Zero Pressure Capable: No differential pressure required to operate.
- High Vacuum Cleaning: VH-grade seals prevent contamination and outgassing.
- Compact Brass Design: Durable for foreline and vent duty.
- Fast Electrical Actuation: Ideal for system interlocks and quick cycle tasks.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8262 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Foreline Isolation: Protects vacuum pumps during chamber transitions.
- Breaker Line Shutoff: Seals vent ports during vacuum drawdown.
- Suction Release Control: Maintains vacuum integrity during system stops.
- High Vacuum Sealing: Maintains pressure in sensitive downstream zones.
- Electrical Check Interlocks: Cuts flow under unsafe power conditions.
Compliance and Approvals
- CSA Certified
- CE Compliant
- Degassed and Cleaned for High Vacuum Service (10⁻³ to 10⁻⁶ Torr)
Installation and Operational Notes
- Use the correct coil voltage; verify before energizing.
- Mount in any orientation; upright recommended.
- Zero pressure differential required for function.
- Cleaned elastomers support 10⁻⁶ Torr vacuum range.
- Install close to the pump or chamber for best control.
We ship these products worldwide! Delivery is normally stock.
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