Gv. internal - internal, 1/4" FF, butterfly

Product detailed description

Butterfly valves of the EVOLUTION series are commonly used in heating, plumbing and sanitation systems across residential, commercial and industrial buildings. Installers often integrate these valves into pipe circuits for isolation purposes during maintenance or system reconfiguration. The internal-threaded design ensures compatibility with standard pipe fittings and allows secure connections in tight spaces. The PN 50 pressure rating makes this model suitable for high-pressure applications, while the extended thread facilitates easier alignment and sealing. This valve is particularly useful in compact installations where space is limited.

With a full-flow design and a temperature range of -20°C to +120°C, this butterfly valve supports both cold and hot water systems. It is frequently used in domestic hot water lines, heating circuits and circulation systems. The nickel-plated brass body provides corrosion resistance and long-term durability in aggressive environments. The double-ended extended thread enables installation from either side, which is beneficial in restricted access areas.

Technical parameters

Material	Nickel-plated brass CW617N ATEST for potable water
Operating temperature	-20 °C
Nominal pressure	PN 50
Weight	0.142 kg
Code	80001015
Brand	IVAR

The PN 50 pressure rating indicates the valve is suitable for systems with medium to high hydraulic demands. The CW617N brass material is certified for potable water use, ensuring compliance with safety standards. The temperature range from -20°C to +120°C allows installation in both cold and heated water applications. These parameters are essential for correct sizing and integration into the system to ensure long-term performance.Installation and connection This valve connects via internal threads on both ends, making it compatible with standard pipe fittings. The 1/4 inch FF size requires matching threaded components. Before installation, verify the thread type and pitch to avoid misalignment. Apply a suitable sealing compound or PTFE tape to the threads to prevent leaks. Ensure the valve is fully aligned with the pipeline axis to avoid stress on the body. A common mistake is over-tightening the connections, which can damage the sealing surfaces or cause thread stripping. Always check the direction of flow indicated on the valve body to maintain proper function.Compatibility and accessories This butterfly valve is typically used alongside other EVOLUTION series components such as straight-seat ball valves and angle valves. It integrates well with copper, PVC and steel piping systems using standard threaded fittings. For installation, ensure that the pipe ends are clean and free of debris before threading. Additional components such as unions or adapters may be required for non-matching connections. No specific accessories are mandatory for standard installation.

Technical background for designers

The EVOLUTION butterfly valve operates via a rotating disc mechanism that opens and closes the flow path. The nickel-plated brass body resists corrosion and maintains structural integrity under varying temperatures. The full-flow design minimizes pressure drop across the valve, making it ideal for systems requiring minimal resistance. The CW617N material is known for its strength and resistance to dezincification, ensuring longevity in aggressive water conditions. The extended thread design enhances ease of installation and reduces the need for additional tools or adjustments during assembly.Service and operation Periodic inspection of the valve’s sealing surfaces and threaded connections is recommended to ensure continued performance. Check for signs of wear or leakage after initial installation and during routine maintenance. No lubrication is required for the operating mechanism. If the valve becomes difficult to turn, disassemble and inspect for debris or corrosion. Replace the seat or disc if wear is detected. No scheduled service intervals are specified in the technical documentation.

Frequently asked questions

Can this valve be used in a domestic hot water system?
Yes, the valve is suitable for hot water systems due to its temperature range up to +120°C and CW617N brass construction approved for potable water.

Is this valve compatible with copper pipe fittings?
Yes, the internal-threaded connection allows it to be used with copper, steel or PVC pipes provided the thread type matches the valve’s specifications.

Can the valve be installed in either direction?
Yes, the double-ended extended thread allows installation from either side, simplifying fitting in tight or hard-to-reach areas.

What sealing method is recommended for the threaded connections?
A PTFE sealing tape or suitable sealing compound should be applied to the internal threads to ensure a leak-free connection and prevent thread damage during tightening.