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365betͶע / Hydraulic Control Valves / DY30BX Slow Opening and Quick Closing Check Valves Consulting Hotline: 021-331007323

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DY30BX slow-opening quick-closing check valve


DY30BX slow-opening quick-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!

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Sales: 021-31007323
Fax: 021-333321522
Technology: 021-31007323

product manual Pledge Order process

Product name : 缓开快闭止回 DY30BX slow-opening quick-closing check valve

Product model :

DY30BX

Applicable medium :

Water, oil, Sewage, seawater

  Connection Type: Flange
Applicable temperature :

                         0-80

  Nominal diameter : 0-DN16 00 DN4 0-DN16 00

Common materials :

Gray cast iron, ductile cast iron

Technical consultation :

021-31007323

DY30BX 缓开快闭止回阀 概述 I. Overview of DY30BX slow-opening and quick-closing check valve :

   缓开快闭 止回阀 包括阀体内设阀座、阀杆、以及与阀体连接的上阀盖与下阀盖等零件组成。 DY30BX slow opening and quick closing check valve consists of valve seat, valve stem, upper valve cover and lower valve cover connected to the valve body. 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. ; 快速关闭,防止水锤产生。 The valve opens slowly to prevent current shocks and pressure shocks on the official website ; it closes quickly to prevent water hammer. No water quality requirements, can be used in sewage, clean water and raw water systems.

DY30BX 缓开快闭止回阀工作原理 Working principle of DY30BX slow-opening and quick-closing check valve :

Slow-opening and quick-closing check valve is installed on the system pipeline or the pump outlet. In normal operation, the medium at the inlet side moves the large valve disc up, and the medium enters the middle cavity through the flow controller to make the valve open and stop operation. The end medium enters the upper cavity through the regulating valve, so that the driving device moves down to drive the large and small valve discs downward, and the valve is closed quickly or slowly to prevent the medium from flowing backward.

DY30BX 缓开快闭止回阀结构特点 Third, DY30BX slow opening and quick closing check valve structure features :

Y 型结构。 Slow-opening and quick-closing check valve adopts double-chamber driving device and Y -shaped structure. The medium has the advantages of semi-linear water flow, maximum flow, small pressure loss, stable opening and closing operation, and no pressure fluctuation in the directional movement. The dual-chamber driving device can be disassembled as a whole for easy inspection. The diaphragm is made of nylon reinforced rubber, which has a long service life. The disc seal can be removed for easier maintenance.

DY30BX 缓开快闭止回阀 主要零件材料 Fourth, DY30BX slow opening and quick closing check valve main parts material :

material

Valve body

HT200 QT450

Disc

HT200 QT450

cap

QT450 HT200

Valve stem

2Cr13

Diaphragm

Acrylic cord lining acrylic

DY30BX 缓开快闭止回阀 性能参数 Fifth, DY30BX slow opening and quick closing check valve performance parameters :

model

Nominal pressure

MPa MPa

MPa Test pressure ﹝ MPa

proper temperature

Applicable medium

case

seal

缓开快闭止回阀 DY30BX slow-opening quick-closing check valve

1.0

1.5

1.1

≤80

Water, oil,

Sewage, seawater

1.6

2.4

1.76

DY30BX 缓开快闭止回阀外形和连接尺寸 Six, DY30BX slow opening quick closing check valve shape and connection size :

DN(mm) Nominal diameter DN (mm)

mm) Dimensions ( mm)

L

50

203

65

216

80

241

100

292

125

330

150

356

200

457

250

533

300

610

350

686

400

762

450

864

500

914

600

1067

700

1300

800

1450

DY30BX 缓开快闭止回阀注意事项 Seven, DY30BX slow opening and quick closing check valve precautions :

   、系统运行前应检查主阀上导阀、配管、管件是否严密完整无损 1.Check the pilot valve, piping, and fittings on the main valve before the system is running.

   、导阀及配管上的控制阀动作是否正常 2. Whether the pilot valve and the control valve on the piping are operating normally

   、系统运行一段时间后要进行管路维护 3. Pipeline maintenance is required after the system runs for a period of time

DY30BX 缓开快闭止回阀安装图 Eight, DY30BX slow opening quick closing check valve installation diagram :

 DY30BX缓开快闭止回阀安装图

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Next Product: DY30AX Slow Opening Slow Closing Multifunctional Check Valve

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