Description
Stainless steel check valve with internal threads - automatic one-way pipe element with threaded connections. Allows liquid or gas to flow in only one direction, automatically preventing backflow. Threaded installation allows easy integration into existing threaded pipelines.
Technical parameters
| Parameter | Meaning |
|---|---|
| Connection | Internal threads (BSP/NPT) |
| Material | AISI 304 or AISI 316 |
| Sizes | DN 8 (1/4") – DN 50 (2") |
| Working pressure | up to 16 bar |
| Temperature | -20°C to +150°C |
Areas of application
- Industry and utility networks - backflow prevention in pipelines
- Protection of pump systems - pump protection from backflow
- Chemical industry - one-way feeding system for chemicals
- Hydraulic systems - hydraulic oil one-way flow
- Food industry - sanitary threaded check valves
Frequently Asked Questions
What is the difference between a threaded and a welded check valve?
Threaded (with internal threads) – easy to install and uninstall in threaded systems. Welded (ID 136) – irreversible, but stronger and more hermetic.
Is the check valve suitable for gases?
Yes, suitable for gases and liquids. Specify the material and pressure – check compatibility.
We have it in stock. We deliver within 1–3 working days.






