Check valve is designed and produced entirely according to the requirements of API Space 6A Equipment Specifications for Wellhead and Christmas Tree, able to be used interchangeably with corollary equipment at home and abroad that is in line with API Space 6A Standard.
It relies on medium pressure to achieve the metallic seal between valve trim and valve body, and the higher the pressure of medium is, the better the sealing property will be. Pipeline pressure can be bearable always to the inside of valve cavity.
The valve body is made of alloy steel forgings, thus has a strong mechanical property and safe and reliable performance, able to bear quite high pressures.
Valve bonnet and valve body are connected by bolts; sealing is the seal ring on valve bonnet which seals off the inner wall of valve body, therefore the sealing property is reliable. It minimizes the assembling clearance between valve bonnet and valve body (designed to be 0), thereby to reduce corrosive mediums' corrosiveness to bolt and screw hole and reduce bolt load.
The sealing surface of valve trim and valve body is welded with carbide alloy, which improves abrasive resistance and corrosion resistance. The valve trim is made of anti-sulfur steel and the hardness of other parts is limited, so the valve can be used in H2S environments.
| Working Pressure Psi(MPa) | 3000~15000(21~105) |
| Size | 52~103(Mm) |
| Criterion Level | Pr1~2 |
| Working Temperture | Lu-46~121 |
| Property Level | PR1 |
| Product specification level | PSL1~4 |
| Inside nominal demension | 1 13/16"~7 1/16" |
| Working medium | oil,natural gas |
Jianhu jielin petrochemical machinery Co., Ltd. is located in jianhu private industrial park, jiangsu province, known as a land flowing with milk and honey. It is a modern large-sized enterprise specialized in researching and developing, manufacturing and selling various oilfield machines and spare parts. Our company has been authorized by China classification society for application of ship products and accessories as well as certificates of API-6A, 16A and 16c, etc. We mainly produces API 6A high and middle pressure valves, with the technical performance being that nominal working pressure is pn2.5-105MPa and nominal diameter is dn3-1000mm; In addition, our company also manufactures API 6A wellhead equipment for oil (gas) extraction, choke and kill manifold, mud manifold, drilling accessories and blowout preventer, etc.
With advanced technological equipment and a strong technical strength, our products in accordance with international standard ISO/df, u. S. ANSI and API, national standard GB and other professional standards. Also our products are widely used in oilfield, chemical, shipbuilding, metallurgic and power station, etc., besides, special products can also be provided according to user demand.
Our company always adheres to the concept of "management enhancement, quality emphasis, market exploitation and brand establishmen". With quality products, favorable prices and premium services, we sincerely seek cooperation with friends from home and abroad.
