Grant Oil Isolation Valve 1/4" X 10Mm Straight

Grant Oil Isolation Valve 1/4" X 10Mm Straight

Designed for use with Grant oil boilers.

• Suitable for kerosene oil
• HVO compatible

Grant Oil Isolation Valve 1/4" x 10mm Straight – GOIL08

Genuine In-Line Oil Shut-Off Valve for Grant Oil-Fired Heating Systems

The Grant GOIL08 Oil Isolation Valve is a genuine, high-quality straight shut-off valve designed for use with Grant oil-fired boilers and heating systems. Featuring a ¼" BSP male x 10mm compression connection, this valve provides a safe, secure, and compliant method of manually isolating the oil supply line.

Essential for any oil-fired installation, this valve allows for easy maintenance, emergency shutdown, or burner replacement—offering reliability and peace of mind to heating professionals and property owners alike.

 Key Features & Benefits

• Official Grant Part – GOIL08
  Manufactured to Grant’s specifications for guaranteed compatibility with oil boiler systems.

• 1/4" BSP x 10mm Compression – Straight Connection
  Perfect for in-line installation with 10mm copper oil lines and standard burner fittings.

• Manual Quarter-Turn Lever Shut-Off
  Allows fast, user-friendly isolation of the oil supply—ideal for servicing or emergency situations.

• Robust Brass Construction
  Designed to resist corrosion and withstand long-term exposure to oil, outdoor conditions, and pressure variations.

• Secure & Leak-Free Compression Fit
  Ensures a tight connection between oil pipework and burner inlet, reducing the risk of leaks.

• WRAS-Compliant Design
  Suitable for use in heating systems in line with UK building and water regulations.

Compatible Grant Boiler Models

The GOIL08 Oil Valve is suitable for use with a wide range of Grant oil boilers, including:

• Grant Vortex Utility models (internal and external)

• Grant Vortex Pro and VortexBlue ranges

• Grant Vortex Eco Utility and Combi models

• Grant Euroflame Boilers

• Suitable for any heating system using 10mm copper oil lines with a ¼" BSP oil inlet connection

Need help confirming compatibility? Get in touch with your boiler’s serial number and our support team will guide you.

 When Should You Replace the Oil Isolation Valve?

Replace the oil isolation valve if:

• It is leaking, damaged, or corroded

• The handle is stiff or seized

• The valve fails to fully isolate oil flow

• You’re replacing the burner or modifying the oil line layout

• The existing valve no longer meets current safety standards

A functioning isolation valve is essential for the safe operation and servicing of any oil boiler system.

 Technical Specifications

• Part Number: GOIL08

• Manufacturer: Grant UK

• Valve Type: Manual isolation valve (straight pattern)

• Material: Solid brass body with steel lever

• Inlet Connection: ¼" BSP male thread

• Outlet Connection: 10mm compression fitting

• Application: Oil-fired central heating systems (burner isolation)

• Operation: Manual quarter-turn shut-off

• Mounting: In-line with copper oil pipework