Check valve DN65, internal thread 2.5 inches, brass disc, NBR seal 1.3121.065.1620

Check valve – reliable installation protection

This check valve, made of high-quality materials, is a key element of any installation where protection against backflow is required. It is ideal for both water and heating systems, ensuring their correct and safe operation. The construction with a brass disc guarantees durability and corrosion resistance, and the NBR seal ensures tightness.

The valve is designed to operate at temperatures up to 90°C and a pressure of PN25, making it a universal solution for many applications. A 2.5 inch (DN65) internal thread facilitates installation and connection to the existing installation.

Construction and application

A check valve with a brass plate is a simple but effective solution. Its task is to allow the flow of medium in one direction and block it in the opposite direction. This protects pumps, boilers and other installation elements from damage caused by backflow. The brass disc of the valve ensures smooth operation and minimizes pressure loss. The NBR (nitrile rubber) seal is characterized by high resistance to oils, greases and many other media, which increases the life of the valve.

• Applications:
  • Water installations – protection of pumps and equipment against backflow of water.
  • Heating systems – protection of boilers and circuits against pressure fluctuations.
  • Industrial installations – protection of technological processes requiring unidirectional medium flow.
• Installation: The valve has a standard 2.5 inch (DN65) internal thread, which allows for easy installation with standard plumbing tools. Simply seal the thread properly and tighten the valve to the installation.
• For installers: Simple construction facilitates quick installation and servicing. Solid workmanship guarantees long-term trouble-free operation.
• For users: Provides peace of mind thanks to reliable protection of the installation against backflow and potential damage.

Key product features

The valve has been designed with durability and reliability in mind. The materials used – brass and NBR – guarantee resistance to corrosion and high temperatures (up to 90°C). The nominal pressure PN25 means that the valve can operate in systems with relatively high working pressure. The directional nature of the valve ensures precise operation and minimizes the risk of errors in the operation of the installation. The solid construction translates into a long service life and infrequent servicing needs – saving time and money for the end user and no problems for the installer during project implementation.