Testable check valves

Controllable check valves in this category are designed for use in heating, pump and plumbing systems where controlled backflow prevention is required. These valves operate by allowing flow in one direction while preventing reverse flow, with an inspection port for maintenance and flow verification. They are suitable for systems with temperatures ranging from -10°C to +95°C and are commonly used in applications such as circulation pump protection, boiler feed lines and closed-loop systems.

The valves are constructed from brass CW602N-M with a plastic disc, ensuring corrosion resistance and durability in wet environments. All models feature internal female metric (FF) threads for secure and leak-free connections to standard pipe fittings and pump inlets.

How to choose

• Match the valve’s nominal diameter to the pipe size and flow requirements of the system.
• Confirm that the internal female metric (FF) thread is compatible with the connected components.
• Ensure the operating temperature range (-10°C to +95°C) suits the application environment.
• Verify that the brass CW602N-M body and plastic disc meet the chemical and mechanical demands of the system.
• Consider the need for an inspection port for routine maintenance or flow testing.

Frequently asked questions

Can these valves be used in high-temperature heating systems?
Yes, they are rated for operation up to +95°C, making them suitable for most heating and hot water systems.

What is the purpose of the inspection port?
The inspection port allows for visual confirmation of flow direction and can be used for maintenance or testing without disassembling the valve.