The Asco 8222G049 Solenoid Valve (8222G49) is engineered for closed-loop steam systems operating up to 125 psi. It opens at 2 psi and withstands sustained service at 353°F. With a 3/4″ brass body and controlled 4.6 Cv flow, it’s suited for heat-fed equipment in pressurized sterilization, mold cycling, and steam distribution lines.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 3/4″ NPT
- Flow Factor (Cv): 4.6
- Operating Pressure Differential:
- Steam: 2 to 125 psi
- Maximum Fluid Temperature:
- AC (Steam): 353°F (178°C)
- Body Material: Brass
- Seal Material: TFE/P, EPDM, or PTFE
- Voltage Options:
- AC (60Hz): 24, 120, 208, 240, 480 V
- AC (50Hz): 110, 220, 240, 480 V
- DC: 12, 24, 48, 120 V
- Watt Rating:
- AC: 10.1 watts
- Coil Insulation Class: H
- Solenoid Enclosure:
- Standard: NEMA 4X, IP65 (Watertight, Corrosion-Resistant)
- Optional: Explosionproof & Watertight (Types 3-9), Raintight (Types 3, 7, 9)
Key Features and Functionality
- Pressurized Start Operation: Opens at 2 psi inlet pressure.
- Thermal Reliability: Steam-rated to 353°F for continuous duty.
- Pilot-Operated Design: Ensures consistent shutoff at higher loads.
- Brass Body Construction: Resists corrosion in heat-based systems.
- Mid-Flow Steam Control: Cv rating balances precision and capacity.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8220/8222 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Sterilizers: Delivers high-temperature steam to treatment chambers.
- Autoclaves: Controls sealed-cycle steam for disinfection.
- Laundry Equipment: Regulates steam to heated press equipment.
- Molding Systems: Feeds thermal steam to mold surfaces.
- Steam Atomization Units: Activates spray heat in HVAC or process lines.
Compliance and Approvals
- UL Listed
- CSA Certified
- CE Compliant
Installation and Operational Notes
- Confirm compatibility with pressure, temperature, and coil voltage.
- Disconnect power and relieve pressure before servicing.
- Mount the solenoid upright to prevent heat soak and fouling.
- Install an upstream filter to avoid clogging or internal wear.
- Remove oils or debris from threads before assembly.
Series Catalog
Asco Hot Water and Steam Valves Two-Way
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