Grant 3 Port Motorised Valve Gcs18 22Mm All Models

Grant 3 Port Motorised Valve Gcs18 22Mm All Models

Grant 3 Port Motorised Valve – 22mm (GCS18)

Part Number: GCS18
Compatible with All Grant Heating Systems

The Grant GCS18 3 Port Motorised Valve is a high-quality, electrically operated valve designed for efficient control of central heating and domestic hot water systems. This 22mm valve is suitable for all Grant models that require a 3-port diverter valve and is commonly used in Y-plan systems to direct water flow between heating and hot water circuits.

Whether you're replacing a faulty valve or installing a new heating setup, this genuine Grant component ensures smooth, reliable performance and compatibility with existing pipework and controls.

Key Features

• 3-port design for controlling both central heating and hot water

• Motorised actuator for precise flow control

• Suitable for use in Y-plan heating systems

• 22mm compression fittings for easy installation

• Includes actuator head and valve body

• Designed for quiet and smooth operation

• Genuine Grant OEM replacement part

Compatible Boiler Models

• Compatible with all Grant oil-fired and renewable heating systems, including:

  • Grant Vortex and VortexBlue ranges

  • Grant Aerona³ heat pumps

  • Grant DuoWave and Wave cylinders

  • Other systems requiring a 3-port valve with 22mm pipework

When to Replace

• Valve is stuck or not opening/closing correctly

• Central heating or hot water not functioning as expected

• Motor or actuator making excessive noise

• Part of a scheduled system upgrade or repair

Technical Specifications

• Part Number: GCS18

• Valve Type: 3-Port Motorised

• Pipe Size: 22mm compression connections

• Voltage: 230V AC

• Motor Type: Spring return actuator

• Max Operating Pressure: Typically up to 6 bar

• Body Material: Brass

• Application: Diverter valve for heating/hot water control in sealed or open vented systems