Large caliber high pressure ball valve

Product description of Q947F forged steel ball valve

Forged steel ball valves are usually made of carbon steel, alloy structural steel, martensitic stainless steel and heat-resistant steel. According to the chemical composition of steel, different annealing and normalizing methods can be adopted for different purposes.

Structural characteristics of forging steel ball valve body

The forged steel ball valve body adopts the side-mounted valve body structure, and the valve cavity is composed of the main valve body, the left valve body and the auxiliary valve. The structure of the left valve and the auxiliary valve body is relatively simple, and the structure of the main valve body is rather complicated.

Technical requirements for forging steel ball valve body

The main valve body of the forged steel ball valve has a high precision inlaid seat hole in the main valve body. One end is the end flange connected with the pipeline, the other is the side flange connected with the left valve body. There is a gasket mounting hole on the side flange surface. There is a thrust gasket mounting hole, a support hole of the valve stem and a packing box on the side flange.

The accuracy of seat hole, stem support hole and packing box hole in main valve body cavity is generally Ra1.6um. The surface roughness of gasket mounting hole on side flange surface is generally Ra6.3um, and other machined surface roughness is Ra12.5um.

Blank structure features of forged steel ball valve cover forging parts

The lower end of the flange of the lower end of the forged steel ball valve cover is connected with the valve body with a 9-grade precision bump (bump) and a sealing welding lip structure of the valve body. The upper end of the valve cover is connected with the flange of the bracket and the packing plate. The upper end of the valve cover is provided with packing box holes, the packing box holes are provided with 11-stage precision holes, the packing box holes and the convex check holes on the lower end face have coaxiality requirements, and the lower end of the inner hole is the upper sealing part connected with the valve stem. There are multiple bolt holes on the lower and lower flanges. The center outer circle is the radiator structure, and the inner and outer surfaces of the whole valve cover parts need to be machined. The surface roughness is one of the important factors in machining.

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”.。