ZHEJIANG HENGGAO VALVE MANUFACTURE CO., LTD
Constant high valve with 6 m diameter turbine inlet valve manufacturing capacity, is currently the largest diameter valves manufacturing base in East China.
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   Product Category
Flange
  DN1200-DN6000
API、GB Butterfly Valve
  (DN500--DN6000)
API、GB Gate Valve
  (DN500--DN2400)
API、GB Ball Valve
  (DN600--DN2000)
API、GB Check Valve
  (DN500--DN4100)
Large Water Control Valve
  (DN100--DN2200)
Large Metallurgical Valve
  (DN100--DN6000)
API、GB Fluorine Valve
  (DN15--DN3000)
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Product Name
 
API、GB Check Valve  
 产品名称 磅级止回阀 产品型号
执行标准 Administer Standard

设计与制造
Design And Manufacture 		结构长度
Face to face		 法兰尺寸
Flange Dimension 		压力-温度
Pressure Temperature		 试验-检验
Inspection And Test
API 6D
BS 1868 		ANSI B16.10 ANSI B16.5 ANSI B16.34 API 598
API 6D

压力试验 Pressure Test

公称压力(Class)
Nominal Pressure 		150 300 600 900
强度试验
Shell Test		 MPa 3.0 7.7 15.3 23.0
Lbf/in2 430 1110 2220 3330
水密封试验
Water Seal Test		 MPa 2.2 5.7 11.3 17.0
Lbf/in2 315 815 1630 2445
气密封试验
Air seal Test		 MPa 0.4-0.7
Lbf/in2 60-100

主要零件材料及性能 Main Part Materials and Property

体 盖 瓣 摇杆 导向套
BodyCover DiscHings Slideway bush

销轴
Hinge Pin

垫片(环)
Sealing Shim

密封面
Sealing Face

工作温度℃
Working Temperature

适用介质
Suitable Medium

WCB 1Cr13

增强柔性石墨
1Cr13/柔性石墨
不锈钢/耐酸石棉
PTFE
齿型垫片
Enhanced
Flexible Graphite
1Cr13/Flexible
Graphite
S.s/Acid-proof
Asbestos
Tooth profile gasket

13Cr
STL
本体材料
With Body
Material
PTFE
尼龙
Nylon

≤425

水 蒸汽 油品
硝酸类 醋酸类
强氧化性介质
尿素
Water Steam
Petroleum
Products
Nitric acid
Strongey oxidable
medium
Urea


规格 主要尺寸 Size Main Dimensions

Class150 凸面法兰RF

Class300 凸面法兰RF

DN

NPS

L

H

DN

NPS

L

H

40

11/2"

165

154

40

11/2"

241

172

50

2"

203

161

50

2"

267

178

65

21/2"

216

180

65

21/2"

292

190

80

3"

241

190

80

3"

318

216

100

4"

292

203

100

4"

356

241

125

5"

330

229

125

5"

400

267

150

6"

356

257

150

6"

444

305

200

8"

495

292

200

8"

533

368

250

10"

622

355

250

10"

622

394

300

12"

699

396

300

12"

711

445

350

14"

787

445

350

14"

838

470

400

16"

864

490

400

16"

864

533

450

18"

978

520

450

18"

978

584

500

20"

978

546

500

20"

1016

610

600

24"

1295

880

600

24"

1346

900

650

26"

1295

910

650

26"

1346

930

700

28"

1448

935

700

28"

1499

1163

750

30"

1524

970

750

30"

1594

1271


Class600 凸面法兰RF

Class900 环槽法兰RTJ

50

2"

292

203

50

2"

371

216

65

21/2"

330

229

65

21/2"

422

254

80

3"

356

235

80

3"

384

292

100

4"

432

286

100

4"

460

318

125

5"

508

292

125

5"

562

343

150

6"

559

330

150

6"

613

368

200

8"

660

381

200

8"

740

432

250

10"

787

457

250

10"

841

546

300

12"

838

584

300

12"

968

660

350

14"

889

635

350

14"

1038

782

400

16"

991

684

400

16"

1140

838

450

18"

1092

752

        

500

20"

1194

975

        

600

24"

1397

1111

        
   
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Add : Oubei Town, Yongjia County, Wenzhou Ou Industrial District (Constant High Park)   Tel : +86-577-67983168    57753215   Fax : +86-577-