Low Resistance Silent Check Valve

Low Resistance Silent Check Valve

Basic information
Basic information
This valve is installed at the water outlet of the pump to prevent backflow of the medium and damage to the pump by the water hammer.
Features
Features
1. Flow deflector is a streamlined design with small flow resistance and energy saving;
2. Disc is completely covered with adhesive and reliable sealing;
3. Closed by its own spring force to prevent water hammer;
4. The closing sound is very low.
Principle-41
Principle-41
Low resistance silent check valve mainly consists of the valve body, seat, flow deflector, disc, bearing and spring and other main parts. Water loss is about 1/2 compared with similar check valves. At the same time, when the pump stops, the disc closes for a short time, which can be closed quickly, avoiding the water hammer and preventing the sound of huge water hammer.
Installation and Commissioning
Installation and Commissioning
This valve shall be installed vertically with the body axis plumb. For specific use, please consult ZECO Valve Group.

Part

Material

Standard

Body

Ductile Iron

EN 1563/DIN 1693

Flow Deflector

Ductile Iron

EN 1563/DIN 1693

Stem

Stainless Steel 431

EN10088-1/ASTM A959

Disc

Ductile Iron + EPDM

EN 1563/ISO 4633

Nut

CuZn39Pb1 / C37000

EN12167/ASTM B135

Spring

Stainless Steel 431

EN10088-1/ASTM A959

For the materials options not listed, consult factory.

ZECO manufactures valves in more than 50 different alloys.

Product scope, Standards & Materials
Size Range: 2"~24"
Pressure Rating: 10bar ~ 25bar
Face to Face Dimensions: AMSE B16.10, EN558-1
Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2
Coating: Fusion Bonded Epoxy Coating
Inspection and Test: ISO 5208 / EN 12226-2

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