The original check valve for bypass DN50mm (2") brass is designed for installation in bypasses with a diameter of 50mm as a shut-off device for the return flow of liquid in heating systems and structurally consists of two forged brass parts with external and internal pipe threads 50mm, interconnected by a thread on a special heat-resistant glue... A rubber ball of increased buoyancy acts as a locking device, which allows the system to operate in automatic mode.

Thanks to the use of modern production technologies, the price of a brass check valve for a bypass DN50mm (2") is more economical than the price of a cast-iron check valve of the same diameter, and even surpasses the cast-iron counterpart in terms of reliability and corrosion resistance. In addition, it is worth noting that due to the availability of ball valve male and female threads, when assembling the bypass system, only one 50mm spigot is needed instead of two, which also allows to obtain a lower production cost of bypasses for heating.

Firm Ltd. "S.T.A." offers to buy brass check valves for bypasses Du50mm (2") that meet the technical requirements :

• Purpose: heating systems with natural and forced circulation
• Nominal pressure, PN (Ru): up to 1.0 MPa
• Temperature: up to +90 ⁰ C
• Body material: Brass LS-59
• Installation: vertical only !(the arrow on the valve body must point upwards)
• Weight: 0.579 kg

Arrangement brass check valves for bypasses DN50mm:

1. Threaded coupling made of brass LS-59
2. Rubber ball
3. Valve body made of brass LS-59