Check Valve

DENZ-C15 Axial Silent Check Valve, is one of the main and most common check valve, which reduces or eliminates water hammer and its effects. There is a great deal of risk associated with pipelines due to water hammer and the most preffered solution is using the axial check valves. Alternatively, axial check valves are called non-slam check valves. At other types of check valves, the discs might close quickly when the pump shuts down. When a pipe system abruptly stops flowing, water hammer occurs as high-pressure shock waves. The reversal of flow caused by water hammer places severe stress on the pipe, endangering its structural integrity and exposing it to potential rupture. Some of the most common causes of water hammer are swing check valves, tilting disc check valves, and double plate check valves. Various other non-return valve designs rely on external devices like counterweights and slam retarders to operate satisfactorily. Those do not allow buried installation, are space consuming and require regular maintenance. DENZ Axial Check Valve can be buried or installed in locations where space or weight is at a premium. DENZ Axial Flow Check Valve normally does not require maintenance.

• ENGJS500-7 Ductile iron body

and bonnet for high strength and impact resistance.

• In addition to reducing turbulence, the full-port

expanded body also prevents erosion and vibration.

There is no downtime or maintenance cost associated

with the process.

• A venturi-shaped body with a full flow passage and

high pressure recovery results in very low pressure loss.

Reduced pump and compressor operating costs are a

result of this advantage..

• Bronze bushings, easy-to-replace parts, and easy-toclean surfaces.

• As a result of a special design spring, DENZ Axial Check

Valves are able to close efficiently

• In order to minimize the head loss in the check valve,

the DENZ Axial Check Valve body is designed like a

globe, and it can be installed in any position, either flow

up or flow down.

• Low static pressure in the throat area creates a pressure differential over the disc, resulting in easy

opening.

• The hydrodynamic design ensures that there is no slamming or water hammering.

• When the valve is in operation, the stainless steel spring is hidden underneath protection in the diffuser.

• 100% of the valves are subjected to Hydrostatic tests according to EN 12266-1. Pressure for seat: PN x 1.1 ,

for shell: PN x 1.5