
The Asco 8262G090VM Solenoid Valve (8262G90VM) is a direct-acting, normally closed valve engineered for medium vacuum systems down to 10⁻³ Torr. Featuring a compact brass body and vacuum-prepared NBR seals, this valve ensures dependable shutoff in roughing lines, breaker vents, and suction release applications.
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 – VM Suffix)
- Voltage Options:
- AC: 24, 120, 240, 480 V (60 Hz); 110, 220 V (50 Hz)
- Watt Rating:
- AC: 6.1 watts
- Coil Insulation Class: 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
- Medium Vacuum Rated: Reliable to pressures down to 10⁻³ Torr.
- Zero Differential Required: No inlet pressure needed to operate.
- Degassed Elastomers: Cleaned seals reduce contamination risk.
- Fast-Acting Solenoid: Enables quick venting or flow shutoff.
- Compact Brass Construction: Durable body for foreline or breaker service.
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 Control: Protects the vacuum pump during cycles.
- Breaker Venting Service: Opens to air to equalize pressure.
- Roughing Pump Flow: Manages flow during initial evacuation.
- Suction Release Timing: Relieves backpressure at shutdown.
- Electrical System Interlock: Cuts off flow during fault events.
Compliance and Approvals
- CSA Certified
- CE Compliant
Installation and Operational Notes
- Ensure coil voltage matches system power before use.
- Mount in any position; upright is preferred for the best response.
- Degassed seals reduce outgassing in vacuum lines.
- Operates effectively from atmosphere to 10⁻³ Torr.
- Use an upstream strainer for protection from particulates.
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