BEIJING DAYU HOLY VALVE CO., LTD

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            |      ENGLISH Home         |  Company         |   Products         |   Contact           Product Introduction   Butterfly Valve Check Valve Manual Operated Wedge Gate Valve Globe Valve Stainless Steel Ball Valve Ball Valve Strainer       Product Introduction Tiny resistance slow-closing butterfly check valve It can avoid the water hammer by reducing the stress of water hammer . Light disc can ensure its long life.    Material of parts

   Name

Body

disc

stemoil jarPistonspring

seat

Material

Cast iron 、 Cast steel

steel 、 ductile iron

  

Stainless steel

  

NBR

  

   Performance

Code

H49X□-1.0/1.6

Nominal Diameter (mm)

DN40-1200

Nominal Pressure (MPa)

1.0

1.6

Sealing testing pressure(MPa)

1.1

1.76

Medium)

Sea water、Sewage water、 Oil、Weak acid alkali

Medium Temperature

≤90

The time for closing (second)

0-60

   Outer Size Unit:mm

Nominal Diameter

size

Nominal Diameter

size

L

H

H1

L

H

H1

40

140

200

88

350

290

480

297

50

150

215

98

400

310

550

324

65

170

225

108

450

330

585

351

80

180

235

118

500

350

640

379

100

190

280

130

600

390

720

434

125

200

290

148

700

430

780

491

150

210

310

172

800

470

840

549

200

230

350

210

900

510

990

600

250

250

415

240

1000

550

1050

655

300

270

450

264

1200

630

1210

770

Note: the mounting dimension of flanges are designed in accordance with GB/T91132000, GB/T17241-1998,JB/T79-1994.   

   Copyright©BEIJING DAYU HOLY VALVE CO., LTD
Address:No.128 Yong Wai Street Chongwen District Beijing   Postal Code:100075
Tel:010-67223388 Fax:86-10-67235888   E-mail:lzgdyhl@163.com Web:http://www.dyhl.com.cn
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