久久香蕉网站_a毛片毛片av永久免费_亚洲国产亚综合在线区_欧美亚洲日本_国产色秀视频在线播放_狠狠躁夜夜躁青青草原

QDQ421F pneumatic emergency shut-off valve

QDQ421F pneumatic emergency shut-off valve
  • sell:021-32051999
  • sell:021-32050777
  • fax:021-66099555

Details

  • Product Introduction
  • Service Promise
  • Ordering Process

Pneumatic emergency shutoff valve is a kind of safety protection valve, which is installed in liquefied petroleum gas storage tank station liquid and gas pipeline, and air compressor (or gas storage tank) matching use, in order to gas source pressure relief or high temperature to melt the easy-to-fuse plug alloy, valve automatically closed leak stoppage, safety protection. The valve can also be used as pneumatic cut-off valve. Remote control can be realized, closing quickly and opening flexibly. It is an ideal alternative to imports.


Working principle and structure elucidation


In the absence of air pressure, the valve disc is normally closed. When the air pump puts pressure gas into the valve cylinder, the valve disc opens. When the valve needs to be closed or in case of emergency, the pressure will be automatically closed.


The valve is fixed by the plunger on the valve seat, when the cylinder is the valve disc, when the pressure gas through the valve seat into the cylinder, the disc will leave the valve seat, when the pressure is released, the disc due to the role of spring force, quickly closed.


The flow direction of the working medium of the valve is outlet at the end of the valve seat and opposite direction of inlet and air pressure at the end of the valve seat. Path (DN):25-200 (mm)


Pressure (PN):2.5, 4.0MPa JIS-10K, 20K


Air source interface: PC1 / 4


High temperature solution temperature: 70 + 5 C

Performance specification


公稱壓力PN
2.5、4.0MPa
氣缸工作壓力
≤4.0MPa
適用溫度T
-40-+80℃
氣缸使用介質
氫氣、空氣
工作介質
液化氣、天然氣
熔閉溫度
70℃-±5℃
閉止時間
≤10秒
氣缸開啟介質
≥0.4MPa


Material of main parts


閥體
閥桿
彈簧
密封圈
碳鋼
不銹鋼
鉻釩鋼
聚四氟乙烯


QDQ421F main dimensions and connecting dimensions


PN
DN
L
H
H1
D
D1
D2
b
f
Z-φd
2.5MPa
4.0MPa
25
160
260
230
115
85
65
16
2
4-14
32
180
270
240
135
100
78
18
2
4-18
40
200
280
250
145
110
85
18
3
4-18
50
230
300
270
160
125
100
20
3
4-18
80
310
360
320
195
160
135
22
3
8-18
100
350
400
360
230
190
160
24
3
8-23
150
480
510
510
300
250
218
30
3
8-25
200
600
610
550
360
310
278
30
4
12-25


QDY421F-25 /40 hydraulic emergency shut-off valve


Performance specification


公稱壓力PN
0.5MPa
4.0MPa
油缸使用壓力
≤4.0MPa
適用溫度T
-40-+50℃
油缸使用介質
13#機械油
工作介質
液化石油氣
熔閉溫度
40℃-±50℃
閉止時間
≤10秒


QDY421F main dimensions and connecting dimensions


PN
DN
L
H
H1
D
D1
D2
b
f
Z-φd
2.5MPa
4.0MPa
25
160
232
242
115
85
65
16
2
4-14
50
230
346
359
160
125
100
20
3
4-18
80
310
445
465
195
160
135
22
3
8-18
100
350
590
623
230
190
160
24
3
8-23
150
480
610
635
300
250
218
28
3
8-25
200
600
630
645
360
310
278
30
4
12-25


The best quality, first-class service Qigao creates more value for you!

"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:

Product Standards:

Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.

pre-sale service:

Product introduction, technical exchange, non-standard product design, troubleshooting。

Sale service:

A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service:

1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.

3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).

4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:

a、Structure length;

b、Connection Type;

c、Nominal diameter, full diameter, reduced diameter, pipe size;

d、Operating medium and temperature, pressure range;

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.

 

Order Process:

1、Customer purchase list fax to021-33872143,Or call us 021-33872141

2、Receive customer purchase list, provide valve model selection and quotation (price list)。

3、Specific agreement: delivery date, special requirements, etc.。

download Google:

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:

a、Structure length;

b、Connection Type;

c、Nominal diameter, full diameter, reduced diameter, pipe size;

d、Operating medium and temperature, pressure range;

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time., The rest of the payment will be remitted before shipment to arrange delivery in time.。

Sale service:

Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。

For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service:

1、"Qigao" product quality period is from the factory12Month, practiceThree packsService (return, replacement, warranty)。

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.,
In order to further improve product quality。

3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。

4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。

statement

  1. All text, data and pictures in this article are for reference only.QDQ421F pneumatic emergency shut-off valvePlease contact us at 4000-700-665 for details of performance, size and price.
  2. If there is no explanation, this article is original, reprint, please indicate the address of this article, thank you for your cooperation!
主站蜘蛛池模板: 天堂网在线WWW最新版资源 | 四虎永久在线精品免费网站 | 最新小四郎av网站在线观看 | 蜜桃免费网站一区二区三区 | 中文字幕亚洲精品一区 | 国产一区二区免费播放 | 国产无遮挡又黄又爽网站 | 伊人久久综合视频 | 欧美69性猛交 | 最新亚洲一区 | 国产乱人激情H在线观看 | 国产精品久久久久久亚洲色 | 日韩精品第五页 | yourporn国产在线观看 | 91麻豆精品激情 在线观看 | 久久久免费看片 | 中国女警的一级播放 | 丰满白嫩大屁股ass 国产亚洲精选美女久久久久 | 好姑娘7免费高清观看 | 五月天婷婷综合网 | 爱爱视频免费在线观看 | 五月亚洲综合 | 最近的免费的中文在线 | 国产成人精品福利一区二区三区 | 国产伦精品一区二区三区免费下载 | gogogo免费视频观看 高清国语 | 亚洲精品成人AA片在线播 | 成人在线一区二区三区 | 中文字幕人成人 | 美女扒开尿眼让男人桶爽视频 | 亚洲女同一区二区 | 久久中文字幕AV不卡一区二区 | 国产又黄又爽又猛免费视频播放 | 成年人免费观看的视频 | 国产成年人黄色视频 | a级毛片黄免费a级毛片 | 亚洲国产精华 | 欧美性爽爽 | 黄色网页在线 | 9九色桋品熟女内射 | 8av国产精品爽爽ⅴa在线观看 |