Description
The NBK Parts 20201 is a heavy-duty, 2-way normally closed solenoid valve engineered for steam and demanding fluid control applications. Built with a pilot-operated design, a robust brass body, and an explosion-proof enclosure, this valve delivers reliable shut-off performance in industrial and commercial HVAC environments where safety and durability are non-negotiable.
Key Features
- 2-way, normally closed (NC) configuration — valve closes automatically when de-energized for fail-safe operation
- Pilot-operated design for efficient, low-power actuation across the rated pressure range
- 3/4″ NPT end connections for straightforward installation into standard piping systems
- 120VAC coil voltage — compatible with common commercial and industrial control circuits
- 5 Cv flow coefficient for optimal flow capacity in steam and compatible media applications
- Rated operating pressure range: 0–50 PSI
- Brass body construction for excellent corrosion resistance and long service life
- EPDM seals — well-suited for steam service, hot water, and other high-temperature media
- Explosion-proof enclosure for safe deployment in hazardous or classified locations
Specifications
- SKU: 20201
- Brand: NBK Parts
- Valve Type: 2-Way Solenoid Valve
- Operation: Normally Closed (NC), Pilot Operated
- Connection Size: 3/4″ NPT
- Coil Voltage: 120VAC
- Flow Coefficient (Cv): 5
- Pressure Range: 0–50 PSI
- Media: Steam (and compatible fluids)
- Body Material: Brass
- Seal Material: EPDM
- Enclosure Type: Explosion Proof
Applications
- Steam distribution and control systems
- Commercial and industrial HVAC hydronic systems
- Hazardous location installations requiring explosion-proof rated components
- Process heating and fluid shut-off applications
- Boiler and steam plant ancillary controls







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