Grant Flow Valve Assembly Gse01Ax Red Pump Station

Pre 2012

Grant Flow Valve Assembly – GSE01AX

Genuine Flow Valve Assembly for Grant RED Pump Station Systems

The Grant GSE01AX Flow Valve Assembly is a genuine OEM replacement component designed specifically for the Grant RED Pump Station, which is typically used in solar thermal systems. This valve assembly plays a crucial role in regulating the flow of heat transfer fluid through the system, ensuring efficient operation and protecting components from overheating or under-circulation.

Whether you’re servicing a solar thermal installation or replacing a faulty component in the RED Pump Station, the GSE01AX provides a reliable, pre-assembled solution that helps maintain system balance and long-term performance.

Key Features & Benefits

• Official Grant OEM Part – GSE01AX
  Engineered for seamless fitment within Grant RED Pump Station configurations.

• Integrated Flow Control
  Manages flow rate and direction of thermal fluid in solar heating systems.

• Ensures System Efficiency & Safety
  Supports optimal heat transfer, pressure balance, and circulation performance.

• Durable & Heat-Resistant Materials
  Built to withstand high temperatures and pressures typical in solar installations.

• Pre-Assembled for Quick Installation
  Supplied as a complete assembly—saves time on installation and reduces the chance of leaks or configuration errors.

• Ideal for Service or System Upgrades
  A direct replacement during maintenance or when retrofitting with newer pump station models.

 Compatible Grant Systems

The GSE01AX Flow Valve Assembly is designed for use with:

• ? Grant Solar Thermal RED Pump Station Kits

• ? Grant Solar Thermal Systems using 1” or ¾” flow configurations (check system specs)

If you're unsure about compatibility with your system, send us your model number or pump station serial—we’re happy to confirm fitment.

When to Replace the Flow Valve Assembly

Replace the GSE01AX if:

• The system is experiencing reduced or inconsistent flow rates

• There is visible wear, corrosion, or leakage around the valve assembly

• You hear fluid hammering or irregular pump cycling

• You're conducting a major solar system service or replacing other RED Pump Station components

Ignoring faulty flow regulation can result in underperformance, system inefficiency, or even overheating of the solar collectors.

Technical Specifications

• Part Number: GSE01AX

• Manufacturer: Grant UK

• Component Type: Flow valve assembly

• Application: RED Pump Station for solar thermal systems

• Connection Size: Typically ¾” or 1” (verify based on setup)

• Material: Brass and heat-resistant polymer (assembly dependent)

• Pressure Rating: Suitable for high-pressure closed-loop systems

• Installation: Pre-assembled and ready to install into compatible Grant RED Pump Stations