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OQDQ421F special safety shut-off valve for liquid ammonia


OQDQ421F special safety shut-off valve for liquid ammonia
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 : Liquid ammonia special safety shut-off valve Product model : OQDQ421F
   Driving method : pneumatic Connection form : Flange  
   Structure form : Straight-through    Sealing material : Fluoroplastic
   Pressure range : 2.5MPa    Nominal diameter : DN25-DN200
   Common materials : Carbon steel, stainless steel    Technical consultation : 021-31007323

是国内著名〖 OQDQ421F液氨专用安全切断阀 〗制造商,也是国内大型【 切断阀 】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〖OQDQ421F液氨专用安全切断阀 〗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 OQDQ421F liquid ammonia special safety shut-off valve and one of the large domestic [ cut-off valve ] manufacturers. Since its establishment, the company has always focused on customer needs and continued innovation. The majority of agents and corporate customers provide the "OQDQ421F liquid ammonia special safety shut-off valve" solution, which is reliable in quality and affordable in price, so it sells all over the country. Welcome new and old customers to call and email us. We will provide you with the best service.

 

液氨专用安全切断阀 -- 用途 First, special safety shut-off valve for liquid ammonia - use

液氨专用安全切断阀分单作用式与双作用式,能够实现远距离控制启闭,启用仅需按一下控制按钮,其余事项均在指定时间内自动完成,单钮安全启闭设置急停按钮,确保操作安全,如加装远程信号反馈系统,可于远距离控制室直接获悉阀门运行状态。 OQDQ421F liquid ammonia special safety shut-off valve is divided into single-acting and double-acting types, which can realize remote control opening and closing. The activation is only required to press the control button. The rest of the items are automatically completed within the specified time. The single-button safety opening and closing setting is emergency stop Buttons to ensure safe operation. If a remote signal feedback system is installed, the operating status of the valve can be learned directly from the remote control room.

液氨专用安全切断阀 -- 性能规范 Second, liquid ammonia special safety shut-off valve - performance specifications

specification

(DN)

Nominal

pressure

(Mpa)

seal

test

pressure

(Mpa)

jobs

temperature

) ( )

Be applicable

 

medium

Control cylinder part

Electricity

source

Disc

Open

height

(mm)

use

medium

Disc opening

Time

(Mpa) Pressure (Mpa)

25

2.5

2.75

~+80 -40 ~ + 80

Liquefied petroleum gas

15

Nitrogen

0.6MPa

-AC220 / DC24

40

2.5

2.75

18

0.6MPa

50

2.5

2.75

20

0.6MPa

80

2.5

2.75

27

0.6MPa

200

2.5

2.75

65

0.6MPa

液氨专用安全切断阀 -- 主要零件材料: 3. Special safety shut-off valve for liquid ammonia - material of main parts:

  Part Name

material

Valve body

WCB

Body seal

Tetrafluoro

Disc

2Cr13

/ 气缸 Cylinder / cylinder

# / 球墨 25 # Steel / Spherical

spring

4Cr13 / 60Si12mn

piston

2Cr13

  Fourth, the working principle and structure description:

、单作用式工作原理:阀门在无外压力操作情况下,阀瓣处于常闭状态,在管道或贮罐系统上使用时,靠电源和气源的压力将阀门打开,在气路的压力使用下阀门处于开启状态,当需要关闭阀门时,可将电源或气源压力泄掉,阀门即自动关。 1. Single-acting working principle: When the valve is operated without external pressure, the valve flap is normally closed. When it is used on a pipeline or tank system, the valve is opened by the pressure of the power source and the gas source, and the pressure in the gas path The lower valve is in the open state when used. When the valve needs to be closed, the pressure of the power supply or air source can be released, and the valve is automatically closed.

、阀瓣关闭时,压力是依靠打开泄压阀来实现。 2. When the valve flap is closed, the pressure is achieved by opening the pressure relief valve.

、常开式可采用单作用代替或按要求订做。 3. Normally open type can adopt single-acting instead or be customized.

、双作用式工作原理:当控制器按事先编好的程序对某个电磁换向阀输出一个电信号,该电磁换向阀动作,使带压仪表气源通过电磁换向阀的切换进入气动执行机构的气缸下腔推动活塞向上运动,活塞带动阀杆,阀杆提动阀芯使阀门开启,切断换向阀电信号,使活塞反向运动使阀门关闭,这种阀门配置称为常闭式。 4. Double-acting working principle: When the controller outputs an electric signal to an electromagnetic reversing valve according to a pre-programmed program, the electromagnetic reversing valve acts to make the gas source of the pressure instrument enter by switching the electromagnetic reversing valve. The lower cavity of the pneumatic actuator pushes the piston upward. The piston drives the valve stem. The valve stem opens the valve core to open the valve, cut off the electric signal of the reversing valve, and causes the piston to move in the opposite direction to close the valve. Closed.

 

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