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DY30AX Slow Open Slow Close Multifunctional Check Valve


DY30AX Slow Open Slow Close Multifunctional 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 : 缓开快闭止回 DY30AX slow opening and quick closing check valve

Product model :

DY30AX

Applicable medium :

Water, oil, Sewage, seawater

  Connection Type: Flange
Applicable temperature :

                         0-80

  Nominal diameter : 0-DN100 0 DN5 0-DN100 0

Common materials :

Cast iron, cast steel, stainless steel

Technical consultation :

021-31007323

DY30AX 缓开缓闭 多功能 止回阀概述: I. Overview of DY30AX Slow Open Slow Close Multifunctional Check Valve:

缓开缓闭止回阀给排水阀门常用于生活供水、消防系统及工业给水系统中。 DY30AX slow opening slow closing check valve water supply and drainage valve is often used in domestic water supply, fire protection system and industrial water supply system. Used to control flow, water level, etc. And various pressure reducing valves, check valves, etc. (DY30AX) 缓开缓闭止回阀有阀体、阀盖、阀瓣、阀杆、弹簧、导阀等零件组成。 The (DY30AX) slow-opening and slow-closing check valve produced by our company is composed of valve body, valve cover, valve disc, valve stem, spring, pilot valve and other parts. There is a diaphragm cavity between the upper valve cover and the lower valve cover. A diaphragm is arranged in the diaphragm cavity, the diaphragm is connected to the central shaft, the other end of the central shaft is connected to the valve, and the valve is in contact with the valve seat. The water container communicates with the water inlet and outlet control holes of the upper valve cover, the water container and the upper valve cover are in throttling communication, and the water container and the upper valve cover are in one-way communication. Use no water quality requirements, can be used for sewage, clean water and raw water systems.

DY30AX 缓开缓闭 多功能 止回阀适用范围: 2. Scope of application of DY30AX slow-open slow-closing multi-function check valve:

Can replace traditionally designed check valves, electric valves and water hammer absorbers. X 多功能止回阀具有缓开、缓闭、防水锤、止回功能,其可靠性及效果比传统形式更好。 DY30A X multi-function check valve has slow-open, slow-close, waterproof hammer, check function, its reliability and effect are better than the traditional form. This product has stable quality and is widely used in various fields such as municipal construction, farmland water conservancy, thermal power generation, petrochemical industry, metallurgy and mining, fire protection and environmental protection, food, shipping, medicine and textile. Y 型结构。 DY30BX slow-opening and quick-closing check valve adopts double-chamber driving device and Y -type structure.

DY30AX 缓开缓闭 多功能 止回阀: Three, DY30AX slowly open and close multifunctional check valve:

、缓开过程:设定多功能止回阀开启压力为 P P 一般小于水泵正常运行的出口压力) , 调整弹簧 , 使 X 弹力等于 P. 当水泵刚开启 , 出口压力低于 P , 下塞头关闭 , 虽然上塞头开启后 , 但由于小止回阀的单向作用 , 主阀上腔水不能排出 , 主阀不能开启 . 当水泵出口压力上升到等于大于 P , 导阀膜片向上运动 , 带动上 , 下塞头向上 , 塞头关闭 , 塞头开启 , 主阀上腔水开始排出主阀缓慢打开。 1. Slow opening process: Set the opening pressure of the multi-function check valve to P ( P is generally less than the outlet pressure of the normal operation of the pump) , adjust the spring so that the X elastic force is equal to P. When the water pump has just opened and the outlet pressure is lower than P , The lower plug head is closed , although the upper plug head is opened , but due to the one-way action of the small check valve, water in the upper cavity of the main valve cannot be discharged , and the main valve cannot be opened . When the pump outlet pressure rises to equal to or greater than P , the pilot valve membrane The upward movement of the tablet drives the upper and lower plug heads upward , the plug head is closed , the plug head is opened , and the water in the upper chamber of the main valve starts to drain out of the main valve and slowly opens.
、运行过程:当主阀上腔水全部排空后 , 主阀完全开启 . 相运载于上腔与阀后相通的多功能止回阀 , 具有水损小 , 节能的特点。 2. Operation process: When the water in the upper cavity of the main valve is completely drained , the main valve is completely opened . The multifunctional check valve carried in the upper cavity communicates with the back of the valve , which has the characteristics of small water loss and energy saving.
、缓闭过程:水泵停止运行 , 主阀分两极关闭 , 先快速关闭 90 , 再缓慢关闭 , 从而清除了水锤 . (注 :1 、控制导阀亦可用电磁取代 .2 、接在主阀体出口的控制管路同样可接在其他水膜上 , 水源压力不低于 1Kg/cm2 3. Slow-closing process: The pump is stopped and the main valve is closed in two poles . Close 90 % quickly and then slowly close to clear the water hammer . (Note : 1. The control pilot valve can also be replaced by electromagnetic . 2. Connected to the main The control pipe at the outlet of the valve body can also be connected to other water films, and the pressure of the water source is not less than 1Kg / cm2 .

DY30AX 缓开缓闭 多功能 止回阀主要零件材质如下: 4. The material of the main parts of DY30AX slow-open slow-closing multi-function check valve are as follows:

Part Name

Texture

Body and bonnet

Cast iron, cast steel, stainless steel

Valve stem

Chrome stainless steel

Disc

+ 丁腈橡胶 Carbon steel, stainless steel + nitrile rubber

形圈 O -ring

Nitrile rubber

spring

stainless steel

DY30AX 缓开缓闭 多功能 止回阀主要外形尺寸 : V. Main Dimensions of DY30AX Slow Open Slow Close Multifunctional Check Valve :

DN

L

H

D

D1

nd

1.0MPa

1.6MPa

2.5MPa

1.0MPa

1.6MPa

2.5MPa

1.0MPa

1.6MPa

2.5MPa

50

203

293

165

165

165

125

125

125

4-18

4-18

4-18

65

216

328

185

185

185

145

145

145

4-18

4-18

8-18

80

248

364

200

200

200

160

160

160

8-18

8-18

8-18

100

283

418

220

220

235

180

180

190

8-18

8-18

8-22

125

330

481

250

250

270

210

210

220

8-18

8-18

8-22

150

356

543

285

285

300

240

240

250

8-22

8-22

8-26

200

450

673

340

340

360

295

295

310

8-22

12-22

8-26

250

540

792

395

405

425

350

355

370

12-22

12-26

12-26

300

570

927

445

460

485

400

410

430

12-22

12-26

12-30

350

635

957

505

520

555

460

470

490

16-22

16-26

16-30

400

700

1188

565

580

620

515

525

550

16-26

16-30

16-33

450

770

1218

615

640

670

565

585

600

20-26

20-30

16-36

500

810

1256

670

715

730

620

650

660

20-26

20-33

20-36

600

900

1600

780

840

 

725

770

 

20-33

20-36

20-36

700

980

1750

895

910

 

840

840

 

24-30

24-36

 

800

1120

1900

1015

1025

 

950

950

 

24-33

24-39

 

900

1280

2100

1115

 

 

1050

 

 

28-33

 

 

1000

1320

2400

1230

 

 

1160

 

 

28-36

 

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