Grant Pressure Relief Valve Prv Indoor 2.5 Bar Mpcbs28

STANDARD EFFICIENCY / NON V3 & CONDENSING MODELS

Grant Pressure Relief Valve 2.5 Bar – MPCBS28

Genuine Indoor PRV for Grant Oil Boilers – 2.5 Bar Safety Setting

The Grant MPCBS28 Pressure Relief Valve (PRV) is a genuine 2.5 bar safety valve designed for indoor Grant oil-fired boiler models, including Vortex and Euroflame systems. This crucial component acts as a safety device in sealed heating systems, automatically releasing water when the system pressure exceeds the safe limit to prevent damage to boiler components.

If your existing valve is leaking, has failed to release pressure during a fault, or is corroded, replacing it with the MPCBS28 ensures your boiler continues to operate safely and efficiently—meeting regulatory and manufacturer safety standards.

 Key Features & Benefits

• Official Grant OEM Part – MPCBS28
  Designed and approved by Grant for perfect compatibility and reliable operation.

• 2.5 Bar Factory-Set Pressure Rating
  Opens automatically if system pressure exceeds 2.5 bar—preventing system damage.

• Essential Safety Component
  Protects heat exchangers, pumps, pipework, and expansion vessels in sealed systems.

• Robust Brass Construction
  Corrosion-resistant and built to perform reliably in high-temperature boiler environments.

• Designed for Indoor Applications
  Suitable for Grant internal boilers installed in utility rooms, kitchens, or airing cupboards.

• Easy to Replace
  Standard fitting for hassle-free installation during servicing or emergency repair.

 Compatible Grant Boiler Models

The MPCBS28 2.5 Bar PRV is suitable for several Grant oil boilers, particularly those installed indoors, including:

• Grant Vortex Utility (various outputs)

• Grant Euroflame Indoor Boilers

• Other Grant indoor sealed systems using a 2.5 bar valve

Please contact us with your boiler’s serial number if you're unsure—our expert team will confirm compatibility.

 When to Replace a Pressure Relief Valve

Replace your PRV if:

• It is leaking constantly from the discharge pipe

• It fails to open when the system pressure exceeds the limit

• There are visible signs of corrosion, scale, or damage

• You're carrying out a pressure fault diagnosis or system service

Neglecting a faulty pressure relief valve can lead to dangerous pressure build-up, potential component failure, or costly water damage.