少妇人妻精品一区二区三区-成年人看的性生活视频-欧美三级a做爰全过裸体-国产夫妻性生活免费看

A21H spring type external thread safety valve

A21H spring type external thread safety valve
  • sell:021-32051999
  • sell:021-32050777
  • fax:021-66099555

Details

  • Product Introduction
  • Service Promise
  • Ordering Process

A21H spring micro-opening external threaded safety valve is suitable for air, ammonia, petroleum gas and other media equipment and pipelines whose working temperature is less than 200%. Type A21W is suitable for equipment and pipeline with corrosive gas or liquid at working temperature < 200 C. Type A21F is suitable for LPG, LPG and other equipment and pipeline with working temperature < 200 C as overpressure protection device. When the pressure in the equipment and pipeline exceeds the allowable value, the valve opens automatically, and then discharges completely. When the pressure drops to the prescribed value, the valve closes automatically to ensure the safe operation of the equipment and pipeline.


工作溫度
A21H型≤200℃ A21W型≤200℃ A21F型-40℃~80℃
適用介質(zhì)
RA21H型適用空氣、氨、石油氣、水等 RA21W型適用腐蝕性氣體或液體 RA21F適用液化石油氣


Main dimensions


公稱通徑DN/mm
尺寸(mm)
D0
d0
L
L1
G
15
20
12
35
65
G1/2"
20
25
16
42
76
G3/4"
25
31
20
50
84
G1"
32
ZG1 1/4"
25
55
85
G1 1/4"
40
ZG1 1/2"
32
55
84
G1 1/2"
50
AG2"
40
67
101
G2"
65
ZG2 1/2"
50
76
120
G2 1/2"
80
ZG3"
65
83
135
G3"


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.A21H spring type external thread safety 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!
丝袜美腿美女日韩在线| 中文字慕日韩精品欧美一区| 中字综合一区二区三区| 日本国产一区二区乱码| 久久偷拍女生厕所尿尿| 久久亚洲精品国产精品黑人| 少妇高潮视频在线观看| 好吊妞视频这里只有精| 国产精品一区美女在线| 国产毛女同一区二区三区| 高清国产自产拍av在线| 欧美精品女同一区二区三区| 久久香蕉国产线看观看av| 国产尤物极品在线观看| 日本少妇被黑人xxxx| 色天天综合色天天久久| 自拍偷在线精品自拍偷99九色| 让你操水蜜桃在线观看| 日本高清不卡精品二区| 千涩成人亚洲av一区| 久久久人妻精品少妇av| 日韩一区二区三区视频播放| 人人玩精品人妻少妇性性色| 国产欧洲日本一区二区| 久久亚洲精品国产av| 久久亚洲精品一区香蕉| 久久精品国产亚洲av男人| 日韩有码中文字幕手机在线观看 | 亚洲精品美女久久久久高潮| 日本一区二区三区东京热| 欧美在线观看日韩精品| 国产三级精品免费观看| 色吊最新在线视频免费观看| 亚洲av日韩欧美精品| 九九九视频在线观看免费| 免费看av网站一区二区| 日本偷拍一区二区三区| 国产女人高潮流白丝视频| 精品特色国产自在自线拍| 日韩av一区二区三区播放| 蜜桃av噜噜一区二区三区策驰|