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1. Structure of Check Valve Description
This product is designed and manufactured fully in accordance with API Spec 6A wellhead and Christmas tree equipment standards,and can thus be used interchangeably with the products manufactured at home and aboard,which tally with API Spec 6A specifications ,or used to form a complete system.
This is a type of check valves which rely on the pressure of working medium to get meal-to-meal sealing between the core and body(seat). The higher the medium pressure,the better the sealing performance. It is always able to withstand the pipeline pressure within the value cavity.
The body of the valve is forged with alloy steel,which has solid mechanical properties and is able to withstand high pressure in safty and reliability.
The bonnet and the body of the valve are connected with blinding bolts. Sealing washers are used to seal up the bonnet and the interior wall, which reduces the space in between to a minimum (designed as 0),thereby considerably minimizes the erosion of the bolts and the bolt holes,caused by erosive media,and also decreases the load taken by the bolts.
2. Main Features of Check Valve
1) Fitted with a valve-opening indicator
2) Designed with the relief valve
3) Designed with the plane thrust bearing structure
4) Designed with the meal-to-meal sealing structure
5) Fitting with the valve stem sealed by using some special material made lip-shaped packing
6) Made of high wear-resising& corrosion-resising materials, both the valve core and bean are durable
7) Designed and manufactured strictly in accordance with API Spec 6A ,ANSI and NACE MR-0175 standards.
3. Check Valve Images
4. Check Valve Specification
5. FAQ of Check Valve
We have organized several common questions for our clients，may help you sincerely：
①How about your company？
One of the leading manufacturers and suppliers specializing Oilfield products in China, mainly offering various of oilfild products consists of our one-stop sales. The integrated sales & service ensures customers with various demands an easier access for purchasing management.
②How to guarantee the quality of the products？
We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.
③How long can we receive the product after purchase?
In the purchase of product within three working days, We will arrange the factory delivery as soon as possible.
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