Gv. internal - external, 1/2" FM

Product detailed description

This internal-external ball valve is commonly used in residential and commercial plumbing systems, including heating and sanitation applications. It is designed for use in systems where a compact, reliable shut-off solution is required. The valve is suitable for installation in tight spaces due to its extended thread design and full-flow characteristics. It is often found in domestic water supply lines, irrigation systems, and industrial water circuits where frequent operation is not required.

With its nickel-plated brass construction and full-flow design, the valve ensures minimal pressure drop and long-term durability. The extended thread allows for flexible installation options and secure connections in various configurations. The operating temperature range from -20°C to +120°C makes it suitable for both cold and hot water applications, including those with seasonal temperature fluctuations.

Technical parameters

The operating temperature range of -20°C to +120°C allows for use in both cold and hot water systems. The nominal pressure rating of PN 50 ensures the valve is suitable for high-pressure applications, such as pressurised water lines and industrial systems. The material, nickel-plated brass CW617N, provides corrosion resistance and mechanical strength, making it suitable for long-term use in water systems.

Installation and connection

This internal-external ball valve is designed for straightforward installation in water systems. The valve features an internal-to-external FM thread, allowing it to be connected to both male and female threaded components. The extended thread design facilitates installation in tight spaces and ensures a secure connection. When installing, ensure that the threads are clean and free from debris to avoid leaks. Apply a suitable thread sealant or PTFE tape to the male thread before tightening. Avoid over-tightening, as this can damage the threads or the valve body.

Common installation mistakes include using the wrong type of sealant, failing to clean the threads before installation, and not verifying the correct orientation of the valve. Always check that the valve is installed in the correct direction, with the handle positioned for easy access. The full-flow design ensures that the valve does not restrict water flow when open, making it suitable for applications where maximum flow is required.

Compatibility and accessories

This ball valve is compatible with standard water systems using FM thread connections. It is suitable for use with copper, PEX, and steel pipes, provided the thread types match. No additional accessories are required for installation, but it is recommended to use a wrench or pipe spanner to tighten the connections securely. The valve is not designed for use with compressed air or other media unless specified in the manufacturer’s technical documentation.

Technical background for designers

The internal-external ball valve operates by rotating a spherical disc with a bore that aligns or blocks the flow path. The CW617N material is approved for contact with drinking water, ensuring compliance with relevant standards. The extended thread design allows for greater flexibility in system layout and installation. The full-flow design minimises pressure loss and ensures efficient operation in high-flow applications. The valve’s PN 50 rating indicates its suitability for systems with high nominal pressure, making it ideal for industrial and commercial water systems.

Service and operation

Regular inspection of the valve is recommended to ensure continued performance. Check for signs of leakage, especially at the thread connections. If leakage is detected, tighten the connections or replace the sealant as necessary. The valve does not require regular maintenance beyond visual inspection. Ensure that the valve is not subjected to excessive mechanical stress or temperature fluctuations beyond its specified range. In the event of a failure, the entire valve should be replaced, as individual components are not serviceable.

Frequently asked questions

Can this valve be used in a potable water system?
Yes, the valve is made from nickel-plated brass CW617N and is certified for use with drinking water.

Is this valve suitable for high-pressure water systems?
Yes, the valve has a nominal pressure rating of PN 50, making it suitable for high-pressure applications.

Can the valve be installed in tight spaces?
Yes, the extended thread design allows for installation in confined areas without compromising the connection quality.

What is the maximum operating temperature of the valve?
The valve is rated for operation up to +120°C, making it suitable for hot water systems.