1/2" Low Pressure Gas Solenoid Valve - N/O
Availability: In Stock
Technical Details
SKU
BCM-15K
Position
Normally Open
Port Size
1/2" Female NPT
Available Voltage
Select Above
Body Material
Brass
Components
Stainless Steel
Seal Material
NBR Diaphragm
Orifice Size
16 mm
Temp Range
15 to 140°F / -10 to 60°C
Pressure Range
0 - 60 PSI (No Minimum Pressure)
Flow Rate
Cv 4.5 (Appx 34 GPM @ 60 PSI)
Power
AC: 20VA / DC: 20 Watts
Coil Connection
DIN 43650A
Coil Class
Class H (356°F )
Response Time
Fast Acting (Less than one second)
Duty Cycle
100% Duty at Rated Ambient Temperature
*Suitable Media
Natural Gas, Propane, Inert Gases
Weight
1 lbs.
Height
4.61"
Length
2.68" port to port
Width
2.20"
CAD Files
Available Upon Request
Product Overview
The BCM-15K is a high-flow 1/2" brass solenoid valve designed specifically for low-pressure and zero-differential gas service. Engineered with an internal high-tension spring and a durable NBR diaphragm, it ensures a positive, airtight seal at 0 PSI where conventional pilot-operated valves fail to close.
Important Application Notice:
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- This valve is Normally Open (remains open when de-energized and closes when powered). It is not suitable for primary fuel-gas safety shutoff, as power loss will allow gas to flow.
- This configuration is specifically designed for specialized setups such as double-block-and-bleed vent lines, purge systems, and atmospheric relief manifolds.
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Key Features
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Zero Differential Operation: Mechanical spring assistance ensures immediate, reliable seating under zero or minimal line pressure.
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Normally Open Configuration: Keeps lines vented or gas flowing safely during power outages.
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Heavy-Duty Construction: Solid brass body, stainless steel internal components, and nitrile (NBR) seals compatible with natural gas, propane, and inert gases.
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Increased Flow Capacity: 1/2" female NPT connections accommodate higher flow rates for mid-sized burner trains and commercial manifolds.
Common Applications
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Vent/bleed legs in 1/2" double-block-and-bleed burner safety trains
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Commercial boiler and furnace gas ventilation systems
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High-flow gas analyzer sampling loops and purge manifolds
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Low-pressure inert gas blanketing (Nitrogen, Argon)
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Industrial kiln and heat-treating gas relief lines
Installation Note
This valve is strictly directional. Align gas flow with the directional arrow cast into the valve body. Backpressure or backflow will prevent the diaphragm from sealing properly. Always verify gas type, system pressure, and applicable local mechanical codes before installation.
Wiring Instructions:
- Loosen and remove the Phillips-head screw securing the DIN connector to the coil.
- Detach the DIN connector from the coil.
- Open the DIN connector housing by prying at the small slot located in the bottom corner next to the Earth terminal.
- Inside the housing, locate the screw terminals:
- Terminal 1: Connect the hot or positive wire.
- Terminal 2: Connect the neutral or negative wire.
- Earth Terminal (for AC voltages only): Connect the ground or Earth wire.
- Ensure all screw terminals are securely tightened for a reliable connection.
- Reassemble the DIN connector by reversing the steps above.
