Mandik NKTM - pressure relief valve

Mandik NKTM pressure relief dampers are used to automatically close the square ductwork in case of shutting down the duct fans. In the event of one of the fans being taken out of operation when the fans are connected in parallel, the Mandik NKTM back pressure relief damper prevents air from flowing backwards through the duct.

Mandik NKTM pressure relief dampers are made of galvanized sheet metal. The plain bearings are made of durable flame retardant nylon. Mandik NKTM square duct check valves are designed for conveyed air with a temperature limitation of -20 *C to +100 *C.

Design of the Mandik NKTM square duct back pressure relief valves:

• .01 - loose leaf
• .01T - leaves connected by rod

Features of Mandik NKTM square pipe check valves:

• maximum air velocity 12 m/s
• maximum pressure at the pressure relief valve 1500 Pa
• can be installed in or at the end of the pipe

Data sheet: