National standard vertical check valve

HC42X, HC42T, HC42H type PN10~PN25 silencer check valves are suitable for supply, drainage, fire protection and HVAC systems. They can be installed at the outlet of the pump to prevent the backflow of the medium and the damage of the pump by the water hammer. 

 [Product Features] 

The internal flow channel of HC42X, HC42T and HC42H type PN10~PN25 silencer check valve adopts a streamlined design, with extremely small pressure loss, and the opening and closing stroke of the valve flap is very short. When the pump is stopped, it can be quickly closed to prevent the huge water hammer sound and form a silent effect.


Products and services that meet fluid control requirements

Each process, each facility, and each environmental constraint has its own special requirements. Therefore, Dongyan offers a comprehensive range of products covering different performance levels, pressures, different functions and different materials.

Detail

Usage and performance specifications

Main Component materials

Part name

Material

Valve body

Cast iron, ductile iron, carbon steel

Deflector

Cast iron, ductile iron, carbon steel

Valve seat

Bronze, chrome stainless steel

Valve disc

Bronze, chrome stainless steel

Shaft

Bronze, chrome stainless steel

Spring

Stainless steel


Main appearance and connection dimensions

Model

Nominal diameter

D1

D2

D3

N-ΦD

L

1.0MPa

1.6MPa

1.0MPa

1.6MPa

1.0MPa

1.6MPa

1.0MPa

1.6MPa

H42H

DN300

370

400

410

460

12-13

12-28

181

H42H

DN350

429

460

470

520

16-23

16-28

184

H42H

DN400

480

515

525

580

16-28

16-31

191

H42H

DN450

530

565

585

640

20-28

20-31

203

H42H

DN500

582

620

650

715

20-28

20-34

219

H42H

DN600

682

725

770

810

840

20-31

20-37

222

H42H

DN700

794

840

840

895

910

24-31

24-37

280

H42H

DN800

901

950

950

1015

1025

24-34

24-40

356

H42H

DN900

1001

1050

1050

1125

1125

28-40

28-40

368

H42H

DN1000

1112

1160

1170

1230

1255

28-43

28-43

432

H42H

DN1200

-

1380

1390

1455

1485

32-49

32-49

524


Product Application Scope

These devices are suitable for accurately controlling media such as gases, liquids, steam, etc., and maintaining process parameters such as pressure, flow rate, temperature, and liquid level at given values. Especially suitable for work environments where the allowable pressure difference is small and the allowable leakage is also small, and the pressure difference is not significant.

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