Gv. internal - internal, 1" FF

Product detailed description

Internal-threaded ball valves are essential components in plumbing and heating systems, particularly in residential, commercial and industrial applications. These valves are commonly used in water supply lines, irrigation systems and HVAC circuits where reliable shut-off and minimal maintenance are required. Installers often encounter these valves in systems operating under moderate pressure and temperature ranges, where the media is non-corrosive and clean. The valve is designed for straightforward integration into existing pipe networks, ensuring compatibility with standard pipe fittings and reducing the need for complex modifications.

When selecting a ball valve for a specific application, it is important to consider the operating conditions, such as the type of media, temperature range and pressure levels. The valve must be sized correctly to ensure it can handle the expected flow rates without causing excessive pressure drop or turbulence. The PN 25 rating indicates that the valve is suitable for systems operating at up to 25 bar, making it appropriate for a wide range of pressurised water and air applications. The operating temperature range from -20°C to +120°C ensures suitability for both cold and hot water systems.

Technical parameters

Installation and connection

This internal-threaded ball valve is designed for direct connection to pipe fittings with matching internal threads. The 1 inch FF size is a standard dimension used in many plumbing and heating systems. When installing, ensure that the pipe is clean and free from debris to prevent damage to the sealing surfaces. The valve should be aligned with the pipe axis to avoid stress on the body or stem. A minimum distance of 20 cm from the valve to any welding or bending operations is required to prevent heat distortion. It is also important to avoid applying lateral forces or impacts to the valve during or after installation, as this can affect its sealing performance and longevity.

Common installation mistakes include misalignment of the valve body with the pipe, over-tightening of the connections, and failure to check for debris before installation. These issues can lead to leaks, reduced service life or complete failure of the valve. Always follow the manufacturer’s instructions for installation and ensure that the valve is fully open before tightening the connections to prevent damage to the internal components.

Compatibility and accessories

This ball valve is compatible with standard internal-threaded pipe fittings and is suitable for use with copper, steel and plastic pipes. It is commonly used in conjunction with pipe unions, fittings and other shut-off devices in water and air systems. No additional accessories are required for basic installation, but it is recommended to have sealing tape or thread sealant on hand to ensure a leak-free connection. There are no related products listed for this model.

Technical background for designers

The operating principle of this ball valve is based on a rotating spherical disc with a bore that aligns with the flow path when open and blocks it when closed. The specially shaped ball and sealing profile are designed to reduce the contact area between the ball and the seat, minimising the accumulation of debris and ensuring smooth operation. The valve is integrated into the system as a shut-off device and is not intended for throttling or flow regulation. The service life and efficiency of the valve are influenced by the quality of the installation, the cleanliness of the media and the absence of mechanical stress on the body.

Service and operation

This ball valve is designed to be maintenance-free under normal operating conditions. However, it is recommended to operate the valve fully once every six months to prevent the accumulation of deposits on the ball surface. The valve must not be disassembled or repaired by the user, as this can compromise the integrity of the sealing surfaces and the structural strength of the body. In the event of damage or failure, the entire valve must be replaced. The maximum allowable temperature of 185°C must not be exceeded, as this can cause deformation or failure of the internal components. The valve must not be subjected to impacts or excessive mechanical stress during operation.

Frequently asked questions

Can this valve be used in potable water systems?
Yes, the valve is constructed from nickel-plated brass CW617N ATEST and is certified for use in potable water systems.

Is it possible to disassemble the valve for cleaning or repair?
No, the valve is designed to be non-disassemblable. Any attempt to disassemble or reassemble it will void its integrity and must be replaced.

What is the recommended operating interval for maintenance?
It is recommended to fully operate the valve once every six months to prevent the accumulation of deposits on the ball surface.

Can the valve be used in systems with temperatures above 120°C?
No, the maximum operating temperature is +120°C. Temperatures above this may cause damage to the internal components.