Non Return Valve 3/8 Oil 2007001 2004001

Non Return Valve 3/8 Oil 2007001 2004001

The 3/8" Oil Non-Return Valve (Part Numbers: 2007001 / 2004001) is a critical component for oil-fired heating systems, specifically designed to ensure one-way fuel flow. By preventing the backward flow of oil, this valve maintains the prime in the suction line, protects the oil pump from back-pressure, and prevents fuel from draining back into the tank during burner off-cycles.

This valve is engineered to handle the specific viscosity and chemical properties of kerosene and gas oil, making it an essential replacement part for domestic and commercial oil boiler installations.

Key Features and Specifications

Size: 3/8" BSP Female x 3/8" BSP Female.

Compatibility: Suitable for Kerosene (Class C2) and Gas Oil (Class D).

Material: High-grade brass body with a spring-loaded internal poppet and oil-resistant seals.

Opening Pressure: Low cracking pressure to ensure the burner pump can easily pull fuel through without restriction.

Function: Permits flow in one direction only (indicated by a permanent arrow on the valve body).

Part Numbers: Commonly referenced as 2007001 or 2004001 in trade catalogs.

Common Applications

Suction Lines: Installed in the oil line between the tank and the burner to prevent the "loss of prime," which causes boiler lockouts.

Tiger Loops & De-aerators: Used in conjunction with de-aerating devices to stabilize fuel delivery.

Multi-Tank Systems: Prevents cross-contamination or uneven draining when multiple oil tanks are connected to a single burner.

Sub-Gravity Installations: Essential for systems where the burner is located higher than the oil tank.

Installation Tips

Flow Direction: Always check the arrow stamped on the brass body; installing the valve backward will completely block the oil supply to the burner.

Sealant: Use an oil-resistant jointing compound like Heldite on the threads. Avoid using standard PTFE tape, as fragments can break off and block the burner nozzle.

Positioning: Typically installed as close to the burner as possible, or at the highest point of the suction line.

Essential Companion Products

Jointing: Heldite Oil-Resistant Jointing Compound

Filtration: Oil Filter with 3/8" Connections

Pipework: 10mm Plastic Coated Copper Oil Pipe

Adaptors: 3/8" x 10mm Brass Compression Adaptors

Specialist Support and Local Collection

Dealing with an oil boiler that keeps locking out? A failing non-return valve is a common culprit. We stock these valves along with a full range of OFTEC-approved oil spares for immediate collection.

Visit our trade counter at 61 Fullers Road, E18 2QB for technical assistance or to pick up the parts you need for a reliable oil installation.