Check valve DN80, internal thread 3 inch, brass disc, NBR seal 1.3121.080.1620

Check valve – reliable installation protection

This check valve with a nominal diameter of DN80 (3 inches) with an internal thread is a solid solution for protecting the installation against backflow of medium. The construction with a brass disc and NBR seal ensures durability and corrosion resistance, which translates into a long service life of the device. This valve is particularly useful in systems where maintaining the correct flow direction is required, e.g. in pumping stations, heating installations or irrigation systems.

Construction and application

A simple type check valve, made of brass, is designed for mounting on pipelines with a 3" internal thread. Its task is to allow the flow of medium in one direction only, blocking it in the opposite direction. The NBR seal guarantees a tight connection and resistance to the action of many media. This makes the valve perfect for various industrial and domestic applications.

• Applications:
  • Pumps – prevents water from flowing back after the pump is switched off, protecting it from damage.
  • Heating installations – protects against uncontrolled flow of hot water.
  • Irrigation systems – maintains pressure in pipelines and prevents water from flowing back to the source.
  • Industrial installations – protection of technological processes requiring unidirectional flow of medium.

Operating parameters and durability

The valve is designed to operate at a maximum pressure of PN25 (12 bar) and a temperature of up to 90°C. The high-quality materials used ensure reliable operation even in difficult operating conditions. The brass valve disc and NBR seal are characterized by high chemical and mechanical resistance, which affects the long service life of the device and minimizes the risk of failure.