DIN F4 Ductile iron silent nozzle check valve short type
Nozzle Check Valves or Axial Nozzle Check Valves are high performance, Non-Slam and self-actuated (or automatic) Non-Return Valves for use in the severest and most demanding applications.
Product Standards and parameters:
Pressure Rating: PN10--PN25
Design: DIN3354, DIN3202
Pressure Testing: EN12266
Pressure Class: PN10-16-25
Small Guide: GG25/GGG-40/304/316
Seat: Brass/Bronze/Stainless steel
Advanced dynamic design of single body with diffuser provides streamline flow and assures lower head loss.
Minimize the head loss to 0.016Bar upon 2M/ sec flow rate.
Brass or reinforced bearing reduce wearing problem during operation.
Hydrodynamic design ensures non slamming and water hammerless.
Stainless steel spring hidden in the diffuser under protection while valve in operation.
Disc will positively close before reverse flow, and maximize the closing speed up to 0.2 Sec.
Comply with EN 558-1, ISO 5752 and EN 1092-2, ISO 7005-2 flange dimension