12410 Beckett Firomatic B100HCV 3/8" NPT(F) x 3/8" NPT(F) Inline Check Valve
📝 Product Overview
The Beckett 12410 Firomatic B100HCV is a 3/8" FNPT x 3/8" FNPT inline check valve designed for oil heating systems. Built from durable brass with a Viton equivalent seal, this valve prevents back-flow in fuel oil lines, ensuring safe and efficient operation.
This Firomatic check valve is UL/ULC listed, making it compliant with safety codes for residential and commercial oil tank installations. Designed for long service life, it resists high temperatures and oil-related wear.
✅ Key Features
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✅ 3/8" FNPT inlet x 3/8" FNPT outlet – standard oil line connection
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✅ Prevents back-flow in heating oil fuel lines
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✅ Heavy-duty brass construction for durability
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✅ Viton equivalent seals resist high temperatures and fuel blends
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✅ Straight, inline design for easy installation
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✅ UL/ULC listed for safety compliance
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✅ Direct replacement for Firomatic 9124-100-0 / 91241000
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✅ Cross-reference: Powerflame 233000
📊 Specifications
| Feature | Details |
|---|
| Part Number |
12410 |
| Brand |
Beckett |
| Type |
Inline Check Valve |
| Inlet/Outlet |
3/8" FNPT x 3/8" FNPT |
| Material |
Brass |
| Seal Material |
Viton® Equivalent |
| Design |
Straight, inline |
| Certification |
UL/ULC listed |
| Applications |
Heating oil tank fuel lines |
| Replaces |
9124-100-0, 91241000 |
| Cross Reference |
Powerflame 233000 |
⚙️ Applications
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Residential oil tank fuel lines
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Preventing back-flow of fuel oil in home heating systems
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Replacement for worn or leaking oil line check valves
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Compatible with standard 3/8" NPT fuel fittings
⚠️ Common Symptoms (When Replacement is Needed)
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Fuel back-flowing into the tank or line
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Oil odor or small leaks at connections
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Loss of line pressure in heating system
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Worn or damaged seals
❓ Frequently Asked Questions
Q1: What does this check valve do?
➡️ It prevents back-flow of heating oil, keeping the fuel line sealed and system safe.
Q2: Is this valve UL/ULC approved?
➡️ Yes, it is UL/ULC listed for use in residential and commercial oil heating systems.
Q3: Can this be used with biodiesel blends?
➡️ Yes, the Viton seals allow compatibility with No. 2 fuel oil, kerosene, and blends up to 20% biodiesel.
🛒 Shopping Tips
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✅ Always check existing connection size (3/8" FNPT) before ordering
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✅ Consider replacing other fittings/seals during installation for a complete solution
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✅ Look for oil line leaks or pressure issues—a failed check valve is often the cause
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✅ Ensure installation is in compliance with NFPA 31 code requirements
