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 Non-sound and speediness-closing check valve It was designed with streamlining inner., and can be turned off in the shortest time.    Feature ·new and reasonable design
·Avoid impact of water hammer , soundless
·easy to install and maintain    Material of parts

Name

Material

Body

grey iron, ductile iron, cast iron

Seat
stem

bronze, chrome-stainless steel

Sring

Stainless steel

   Performance

Code

DZH 4C 7-10

DZH 4C 7-16

DZH 4C 7-25

Nominal Diametermm

DN50 ~ D500

Nominal PressureMPa)

1.0

1.6

2.5

Sealing testing pressure(MPa)

1.1

1.76

2.75

Shell testing pressure(MPa)

1.5

2.4

3.75

Medium

Water 、 Sewage water、Oil 、 weak acid and alkali and so on

   Outer Size Unit:mm

Nominal Diamete
(
mm )

mm

50

65

80

100

125

150

200

250

300

350

400

450

500

in

2 ″

2.5 ″

3 ″

4 ″

5 ″

6 ″

8 ″

10 ″

12 ″

14″

16 ″

18 ″

20 ″

Size

L

120

150

180

240

300

350

450

500

550

575

600

650

700

Note: the mounting dimension of flanges are designed in accordance with GB/T9113-2000, 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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