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365betͶע / Hydraulic Control Valve / 300X Slow-closing Check Valve Consulting Hotline: 021-331007323

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300X slow-closing check valve


300X slow-closing check valve
Stable quality: implement quality monitoring throughout the process, meticulous and comprehensive detection!

Reasonable price: efficient internal cost control, reducing expenses and benefiting customers!

Fast delivery: advanced production lines, sufficient stocking, shortening the delivery time!
Sales: 021-31007323
Fax: 021-333321522
Technology: 021-31007323

product manual Pledge Order process

 

  Product name : Slow-closing check valve Product model : 300X
   Driving method : Manual Connection form : Flange
   Structure form : Slow-closing    Sealing material : rubber
   Pressure range : 2.5 MPa 1.0 2.5 MPa    Nominal diameter : 0-DN800 DN2 0-DN800
   Common materials : Carbon steel, stainless steel    Technical consultation : 021-31007323

是国内著名〖 300X缓闭式止回阀 〗制造商,也是国内大型【 水力控制阀 】生产商之一,公司自成立以来始终围绕客户的需求并持续创新,为广大的代理商和企业客户提供〖300X缓闭式止回阀 〗解决方案,质量可靠,价格实惠,故畅销全国各地,欢迎新老客户来电,来函,我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic manufacturer of [ 300X slow-closing check valve ], and one of the large domestic [ hydraulic control valve ] manufacturers. To provide our agents and corporate customers with a "300X slow-closing check valve" solution, reliable quality and affordable prices, so it sells all over the country, welcome new and old customers to call us, email us, we will provide you with the best service.

First, the structural characteristics and usefulness of 300X slow-closing check valve
 

由主阀、单向阀、针阀、球阀、微形过滤器和压力表组成水力控制接管系统。 300X slow-closing check valve is composed of main valve, check valve, needle valve, ball valve, micro-filter and pressure gauge. Using hydraulic automatic operation, the main valve can get the best opening or closing speed. Prevent the occurrence of water hammer and water hammer,
In order to achieve the effect of slow closing muffler. This product uses hydraulic self-control. It does not require other devices and energy. It is easy to maintain, and it can be opened and closed slowly. 广泛用于高层建筑、生活区等供水管网系统及城市供 500X pressure relief / hold pressure valve is widely used in high-rise buildings, living areas and other water supply pipe network systems and urban supply
Water works.
 

Working principle of 300X slow-closing check valve
 

When the valve feeds water from the inlet, the water enters the main valve control room through a micro filter, needle valve, and check valve, and then drains downstream through a ball valve. Because the opening of the needle valve is smaller than the opening of the ball valve, that is, the drainage speed of the main valve control room is greater than the water inlet speed,
Therefore, the pressure in the control chamber decreases, and the inlet pressure acting on the lower end of the main valve disc opens the main valve to supply water downstream. When the pipeline stops supplying water, if the downstream water starts to return, a part of the return water enters the main control room through the ball valve. Due to the check valve function,
The return water cannot flow out of the main control room, causing the main control room to gradually increase pressure, and slowly close the main valve.
 

Third, the main technical parameters of 300X slow-closing check valve



Nominal pressure (Mpa)

Shell test pressure (MPa) Sealing test pressure (MPa) Applicable medium Medium temperature (℃)

1.0

1.5

1.1

water

0-80

1.6

2.4

1.76

2.5

3.75

2.75


Material of main parts of 300X slow-closing check valve



Part Name

Parts material

Body valve cover

WCB

Valve seat

Copper alloy

O-ring seal

Nitrile rubber

Valve stem

2Cr13

spring

50CrVA

Needle valve

Copper alloy

Ball valve

Copper alloy

Float valve

Copper alloy

Micro filter

stainless steel


Five, 300X slow-closing check valve connection size



300X slow-closing check valve structure diagram
300X slow-closing check valve structure diagram 1, needle valve 2, check valve 3, small ball valve  
 
 

DN

L A A1 H H1 F D mm D1 mm D2 mm n-Φd
mm mm mm mm mm mm PN1.0 PN1.6 PN2.5 PN1.0 PN1.6 PN2.5 PN1.0 PN1.6 PN2.5 PN1.0 PN1.6 PN2.5

20

180

282

200

172

106

116

105

105

105

75

75

75

58

58

56

4-13.5

4-13.5

4-14

25

180

282

200

172

106

116

115

115

115

85

85

85

68

68

65

4-13.5

4-13.5

4-14

32

180

282

200

172

106

116

140

140

140

100

100

100

78

78

76

4-17.5

4-17.5

4-18

40

240

320

210

265

210

170

150

150

150

110

110

110

88

88

84

4-17.5

4-17.5

4-18

50

240

320

210

265

210

170

165

165

165

125

125

125

102

102

99

4-17.5

4-17.5

4-18

65

250

330

215

310

215

180

185

185

185

145

145

145

122

122

118

4-17.5

4-17.5

8-18

80

285

350

220

350

245

210

200

200

200

160

160

160

133

133

132

8-17.5

8-17.5

8-18

100

360

410

230

460

305

275

220

220

235

180

180

190

158

158

156

8-17.5

8-17.5

8-22

125

400

420

245

520

365

310

250

250

270

210

210

220

184

184

184

8-17.5

8-17.5

8-26

150

455

430

260

570

415

355

285

285

300

240

240

250

212

212

211

8-22

8-22

8-26

200

585

440

280

695

510

460

340

340

360

295

295

310

268

268

274

8-22

12-22

12-26

250

650

450

300

780

560

500

395

405

425

350

355

370

320

320

330

12-22

12-26

12-30

300

800

460

320

902

658

580

445

460

485

400

410

430

370

370

389

12-22

12-26

16-30

350

860

470

340

1025

696

640

505

520

555

460

470

490

430

430

448

16-22

16-26

16-33

400

960

480

360

1080

735

715

565

580

620

515

525

550

482

482

503

16-26

16-30

16-36

450

1075

530

395

1030

610

780

615

640

670

565

585

600

532

550

548

20-26

20-30

20-36

500

1075

580

420

1135

665

830

670

715

730

620

650

660

585

585

609

20-26

20-33

20-36

600

1230

600

445

1270

725

920

780

840

845

725

770

770

685

685

720

20-30

20-36

20-39

700

1650

730

495

1460

865

980

895

910

960

840

840

875

800

800

820

24-30

24-36

24-42

800

1750

830

530

1640

925

1050

1015

1025

1085

950

950

990

905

905

928

24-33

24-39

24-48


Installation diagram of 300X slow-closing check valve


300X slow-closing check valve installation diagram

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