H42N natural gas vertical check valve
- sell：021-32051999
- sell：021-32050777
- fax：021-66099555
Details
- Product Introduction
- Service Promise
- Ordering Process
H42N natural gas vertical check valve disc is designed with single disc, which is lifted and lowered along the center position. Because the disc has short closing stroke and spring loading, the closing speed is fast. The sealing surface is made of elastic nylon, which improves the sealing performance and avoids the electrostatic spark caused by the impact of medium pressure.
Main uses
Natural gas vertical check valve is suitable for vertical pipeline, it is the use of fluid pressure difference and its own weight to achieve lifting to open and close the valve. Its role is to prevent natural gas, gas, gas, liquefied petroleum gas pipeline in the back flow.
Scope of use:
Range: DN15 ~ DN300
Pressure range: 1.6MPa ~ 4.0MPa
Temperature range: -20 C ~ 200 c
Medium range: gas, natural gas, liquefied petroleum gas, gas and other inflammable and flammable gases.
performance parameter
公称压力PN | 2.5 | 4.0 | MPa |
壳体试验压力PT | 3.75 | 6.0 | |
高压密封试验压力 | 2.75 | 4.4 | |
适用介质 | 液化气、天然气等 | ||
适用温度 | -20∽+200℃ | ||
法兰连接标准 | JB/T 79-94 | ||
PN | DN | H | D | D1 | D2 | b | f | Z-φd |
2.5MPa 4.0MPa | 25 | 105 | 115 | 85 | 65 | 16 | 2 | 4-14 |
32 | 150 | 135 | 100 | 78 | 18 | 3 | 4-18 | |
40 | 160 | 145 | 110 | 85 | 18 | 3 | 4-18 | |
50 | 170 | 160 | 125 | 100 | 20 | 3 | 4-18 | |
65 | 180 | 180 | 145 | 120 | 22 | 3 | 8-18 | |
80 | 200 | 195 | 160 | 135 | 22 | 3 | 8-18 | |
100 | 210 | 230 | 190 | 160 | 24 | 3 | 8-23 | |
150 | 300 | 300 | 250 | 218 | 30 | 3 | 8-25 | |
200 | 380 | 360 | 310 | 278 | 34 | 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.：
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2、The factory can configure various types of driving devices according to customer's specific requirements.。
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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.
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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.。
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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, practice“Three packs”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.，
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”.。
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