Gv. internal - internal, 1/2" FF

Product detailed description

This internal-internal ball valve is commonly used in residential and commercial heating, plumbing and irrigation systems. It provides reliable shut-off in water supply lines and is frequently installed in systems requiring frequent manual control. The valve’s extended internal thread allows for easier installation in tight spaces and ensures secure connections in pressurised environments. It is particularly suited for systems operating within a wide temperature range, including those exposed to freezing conditions.

The design supports full flow through the valve, minimising pressure loss and ensuring efficient performance in both hot and cold water applications. Its nickel-plated brass construction offers corrosion resistance and durability, making it suitable for long-term use in diverse environments. The double-ended lever provides intuitive operation and is ideal for applications where space is limited on either side of the valve.

Technical parameters

Installation and connection

Installation should be carried out with the system depressurised. The valve has internal threads on both ends (FF) and must be connected using standard pipe fittings. The extended thread allows for better alignment in confined spaces. Prior to tightening, ensure the sealing compound or tape is applied evenly to prevent leaks. A common mistake is over-tightening, which can damage the threads or seating surface. Check that the lever moves freely after installation and that the valve is positioned to allow easy access for future maintenance.

Compatibility and accessories

This valve is compatible with standard water supply systems and can be integrated with other components such as pipe fittings, unions and pressure regulators. For systems requiring additional control, it can be paired with actuators or thermostatic controls. When ordering, ensure that all connecting pipes and fittings match the internal thread specification. No specific accessories are required for basic installation.

Technical background for designers

The valve operates by rotating the ball inside the body to open or close the flow path. The nickel-plated brass body offers good thermal conductivity and resistance to corrosion, ensuring long-term reliability. The full-flow design reduces turbulence and pressure drop, making it suitable for systems requiring high flow rates. The PN 50 rating ensures compatibility with systems operating under moderate pressure. The low operating temperature limit (-20°C) makes it suitable for installations in colder climates or systems that may experience freezing conditions when not in use.

Service and operation

Periodic visual inspections are recommended to check for signs of leakage or corrosion. Ensure the lever moves smoothly without resistance. If the valve becomes difficult to operate, disassemble and clean the seating area to remove debris. No scheduled maintenance is required beyond these checks. In case of suspected internal damage, the valve should be removed and inspected according to the manufacturer’s guidelines.

Frequently asked questions

Can this ball valve be used in potable water systems?
Yes, the valve is made from nickel-plated brass CW617N and is certified for use with drinking water, making it suitable for potable water applications.

Is it possible to install this valve in a vertical position?
Yes, the internal-internal design allows for flexible installation orientations. However, ensure the lever is positioned for easy access and operation.

What type of sealing material is used between the ball and the body?
The sealing material is not specified in the technical data, but the valve is designed for full-flow operation and is suitable for water-based systems.

Can this valve be used in systems with temperatures below zero?
Yes, the operating temperature range includes -20°C, allowing the valve to function in environments with freezing conditions.