Grant Isolation Valve Mpcbs76 Filling Loop 15Mm Long

15mm fitting

A component used in Grant oil-fired boilers for controlling the flow of water within the system. The isolation valve sits underneath the heating appliance and gives the user the ability to manipulate the flow of gas and water in to the central heating system. These also allow in the event of an emergency to shut down the flow completely, The isolation valve helps ensure the smooth and efficient operation of the heating system while enabling easy access for service or replacements when necessary.

Grant 15mm Long Isolation Valve – MPCBS76

Part Number: MPCBS76
Genuine Filling Loop Isolation Valve for Grant Combi Boilers

The Grant MPCBS76 Isolation Valve is a genuine 15mm filling loop component designed specifically for use in Grant oil-fired combination boilers. This long-format isolation valve is an essential part of the system that allows safe and controlled refilling of the central heating circuit from the mains water supply.

Built to Grant’s high-quality standards, this valve ensures leak-free operation and smooth handling, giving both heating engineers and DIY users a dependable solution when servicing or installing a filling loop assembly.

Key Features & Benefits

• OEM Part – Manufactured to meet Grant's exact specifications

• For Use on Filling Loops – Allows temporary connection to mains for system top-up

• 15mm Compression Inlets – Standard size for straightforward plumbing connection

• Reliable Isolation – Ensures the heating system is securely sealed from the mains when not in use

• Long Body Design – Easier access and fitment in tight spaces

Compatible Grant Boiler Models

This valve is suitable for use in a variety of Grant combination boilers featuring a 15mm filling loop, including:

• Grant Vortex Combi

• Grant Pro Combi

• Other Grant oil combi boilers with 15mm long filling loops

Always consult your boiler’s manual or check with your engineer to confirm compatibility.

When to Replace the Isolation Valve

• Leaking or weeping from valve body or joints

• Valve no longer isolates properly

• Signs of corrosion or internal wear

• During filling loop upgrades or maintenance

Technical Specifications

• Part Number: MPCBS76

• Type: Isolation Valve (Long)

• Application: Filling Loop – Central Heating System

• Connection Size: 15mm compression

• Material: Brass body with durable seal components

• Orientation: Straight through design