+GF+ 3-Way Ball Valves

Georg Fischer ABS metric 3-way ball valves are designed for diverting, mixing, and distributing flow within ABS pipework systems. Manufactured by Georg Fischer and supplied in metric sizes from 16mm to 63mm, these valves offer reliable performance, long service life, and excellent chemical resistance.

Available in both L-port and T-port configurations, GF 3-way ball valves provide flexible flow control options for industrial, commercial, and process applications where multiple flow paths are required.

• Manufacturer: Georg Fischer
• Material: Acrylonitrile Butadiene Styrene (ABS)
• Size range: 16mm to 63mm
• Port options: L-port or T-port
• Seal material: PTFE
• Maximum operating pressure: Up to 10 bar
• Connection type: Metric plain ends (solvent weld with solvent cement and cleaner)

Although L-port and T-port valves are both used to control flow between three pipe connections, their internal ball design and flow behaviour are different, making each suitable for different applications.

An L-port valve has an internal bore shaped like an “L”.

How it works:

• Flow is directed from one inlet to one of two outlets
• Only one flow path is fully open at any time
• The valve can be positioned to fully shut off flow

Key characteristics:

• Ideal for diverting or switching flow
• Can isolate lines completely
• Suitable where on/off control is required between outlets
• Mixing or dual-outlet flow is possible, but with reduced flow rate

Typical uses:

• Line selection
• Process changeover
• Systems requiring a true shut-off position

A T-port valve has an internal bore shaped like a “T”.

How it works:

• Allows flow to be:
  • Diverted to two outlets simultaneously
  • Mixed from two inlets into one outlet
• Multiple flow paths can be open at the same time

Key characteristics:

• Designed for mixing and distribution
• No true shut-off position in standard configurations
• Offers greater flow flexibility than an L-port valve

Typical uses:

• Mixing applications
• Flow splitting
• Systems where multiple outlets may be supplied at once

Choose an L-port valve if you need:

• Flow switching
• Line isolation
• A fully closed position

Choose a T-port valve if you need:

• Mixing of flows
• Supplying multiple outlets at once
• Maximum system flexibility

If you’re unsure which configuration suits your application, it’s usually best to decide whether isolation (L-port) or simultaneous flow paths (T-port) are more important.