The Asco 8263G205LT Solenoid Valve is a direct-acting, normally closed, 2-way valve engineered to control cryogenic fluids precisely. Designed to handle liquid nitrogen, oxygen, and argon down to -320°F, it features a degreased brass body and hydrocarbon-free seals. This model is deployed in cryogenic tanks, injection systems, and low-temperature delivery lines.
Technical Specifications
- Valve Type: Direct Acting, Normally Closed, 2-Way
- Pipe Size: 1/4″ NPT
- Flow Factor (Cv): 0.56
- Operating Pressure Differential:
- Cryogenic Fluids (AC): 0 to 100 psi
- Cryogenic Fluids (DC): 0 to 30 psi
- Maximum Fluid Temperature:
- Cryogenic Service: -320°F (-194°C)
- Body Material: Brass
- Seat Material: Clad Copper/UR
- Seal Material: PTFE or Clad Copper/UR
- Voltage Options:
- AC: 24, 120, 240, 480 V (60 Hz)
- DC: 6, 12, 24, 120, 240 V
- Watt Rating:
- AC: 17.1/F
- DC: 11.6/F
- Solenoid Enclosure:
- Standard: NEMA 1, 2, 3, 3S, 4, 4X (Watertight, Corrosion-Resistant)
- Optional: Explosionproof & Watertight (Types 3, 3S, 4, 4X, 6, 6P, 7, 9)
Key Features and Functionality
- Zero Differential Operation: Activates reliably from 0 psi inlet.
- Cryogenic Seal Design: Operates in liquid gases down to -320°F.
- Cleaned and Tested Internals: Degreased and hydrocarbon-free.
- Compact Brass Configuration: Optimized for space-limited installs.
- Direct-Acting Shutoff: Ensures fail-safe sealing in cryogenic systems.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8263 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Cryogenic Freezing Systems: Delivers precision LN₂ or CO₂ dosing.
- Liquid Oxygen Storage: Controls transfer and relief valve actuation.
- Medical Gas Supply: Enables reliable low-temp gas regulation.
- Scientific Cryogenics: Maintains sealed flow paths in extreme cold.
- Gas Processing Skids: Interfaces with refrigerated pipelines and valves.
Compliance and Approvals
- CSA Certified
- CE Marked (RedHat II Series)
Installation and Operational Notes
- Install in clean, cryogenic-rated piping systems.
- Internal components are moisture-free and black light tested.
- Maintain vertical orientation for the best actuation response.
- Confirm the correct voltage before applying power.
- A bracket is included for optional direct mounting to equipment.
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