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!
成人爱爱视频在线观看| 极品少妇高潮在线观看免费| 国产精品午夜视频在线观看| 日韩欧美国产麻豆一区精品 | 色噜噜噜av天堂九区| 国产乱码精品免费一区二区av| 在线日本高清日本免费| 青草在线视频免费观看| 亚洲在线视频免费视频| 综合久久av一区二区三区 | 国产美女主播在线一区| 国产精品久久黑丝诱惑| 99午夜福利在线播放| 成年人片免费在线观看| 国产福利午夜在线播放| 中字亚洲国产精品一区二区| 久久久久久狠狠亚洲综合 | 可以免费看草逼的网站| 我的极品女上司在线观看| 五月激情综合网俺也去| 国产精品一区二区av在线 | 欧美a级黄片免费在线观看| 亚洲精品区免费观看av| 精品亚洲欧美日韩国产| 人妻少妇久久精品中文| 成人午夜视频在线观看高清| 91免费在线观看国产精品| 久久久精品人妻中文字幕一区二区| 在线精品日韩亚洲欧一二三区| 综合激情五月综合激情五月激情1| 在线日韩精品一区二区三区| 国产主播在线一区二区| 精品一区二区三区老熟女少妇| 国产三级精品一区二区| 久久久久亚洲av成人| 成人av动漫蜜桃在线| 国产精品一区在线播放| 日韩欧美亚洲国产资源| 久久久国产精品9999综合| 色多天堂网视频在线观看| 亚洲中文字幕av一区二区三区|