Butterfly buffer check valve

Technical Parameter

Product model: HH47, H47XF, HDH47X

Nominal pressure: 1.0~2.5MPa

Nominal diameter: 200~1400mm

Applicable medium: water, oil, sea water, sewage

Applicable temperature: 0~80℃ (up to 200℃ if necessary)

Flange standard: GB/T 17241.6 GB/T 9113

Test standard: GB/T 13927 API 598


Product Detail

Product Description

Butterfly buffer check valve is mainly used at the pump outlet of industrial water supply and sewage treatment plant to prevent the backflow of the medium in the pipe network. Destructive water hammer is automatically eliminated so that pumps and piping are not damaged. The valve is mainly composed of valve body, valve disc, buffer device and micro-control valve. The product has the characteristics of novel structure, small volume, small fluid resistance, balanced operation, reliable sealing, wear resistance, and good buffer performance. It is an ideal product for industrial water and urban sewage.


Material Of Main Parts

Part Name

Body

Disc

Stem, cylinder, piston

Spring

Seat

Material

Grey cast iron, cast steel

carbon steel

Stainless steel

Stainless steel

Nitrile rubber


蝶式缓冲止回阀(图1)


Main External Connection Dimensions 

DN

200

250

300

350

400

450

500

600

700

800

900

1000

1200

1400

L

230

250

270

290

310

330

350

390

430

470

510

550

630

710

H

550

250

690

780

860

910

980

1070

1220

1320

1430

1550

1800

1980

B1

540

630

650

710

770

830

900

1090

1200

1320

1420

1550

1780

2000