Stainless steel gate valve: valve body, valve cover, gate plate, gate rod using stainless steel materials, seat sealing surface for PTFE, stainless steel + cemented carbide or surfacing welding cemented carbide, filler generally used cemented carbide, PTFE, asbestos graphite or flexible graphite. Nominal size DN15 ~ DN800, working pressure 1.6 MPa ~ 20.0 MPa, suitable temperature < 200, suitable for nitric acid, weak corrosive medium pipeline. The product characteristic 1. uses austenitic stainless steel, has good corrosion resistance to the oxidizing acid medium. 2. when the medium flows through the stainless steel gate valve, the flow direction is not changed, and the fluid resistance is small. 3. the movement direction of the gate plate is perpendicular to the direction of the medium flow, and the opening and closing moment is small, and the opening and closing are more labor-saving. 4. The flow direction of the medium is not restricted, and the flow direction is not disturbed, and the pressure is not lowered. The medium can flow through the gate valve in any direction. It is most suitable for the pipeline where the flow direction of the medium may change. 5. the gate is vertically placed in the valve body with a shorter structural length. 6. good sealing performance. The sealing face is less eroded when fully opened. Stainless steel gate valve (flange) Stainless steel gate valve (internal thread, wire mouth) Stainless steel flange gate valve product description Z41H, Z41Y, Z41W stainless steel flange gate valve: manual, flange connection form, open rod wedge rigid single gate, valve seat sealing surface material is stainless steel, nominal pressure PN16 ~ PN200, valve body material is stainless steel gate Valve. Z41W, Z41Y, Z41H stainless steel gate valves have compact structure, reasonable design, good rigidity, smooth passage, low flow resistance coefficient, stainless steel and cemented carbide sealing surface, long service life, flexible graphite packing, reliable sealing, easy and flexible operation. It is applied to the pipelines of petroleum, chemical, hydraulic and thermal power plants with working pressure of 1.6 MPa~20.0 MPa and working temperature of - 29 ~200 ~C. The suitable medium is nitric acid, acetic acid, water, oil, gas and some corrosive liquids. The product features of stainless steel flange gate valve meet the requirements of advanced standards at home and abroad, reliable sealing, excellent performance, beautiful shape. (2) The sealing pair is advanced and reasonable. The sealing surface of the gate and valve seat is made of cemented carbide with different hardness. The sealing is reliable, high hardness, wear resistance, high temperature resistance, corrosion resistance, good abrasion resistance and long service life. 3. The valve stem is quenched and tempered and nitriding on surface. It has good corrosion resistance, scratch resistance and wear resistance. It can adopt various pipe flange standards and flange sealing surface forms to meet various engineering needs and user requirements.

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.。

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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”.。