Wellhead Swing One Way Check Valve
Optional Features
Low alloy Steel or stainless Steel valve body
Regular Bore, Full bore
Swing or Lifting Type
Trim AA, BB, CC, DD, EE, FF
Sealing is energized by flow fluid pressure, sealing performance gets better while pressure increases.
Hard-faced sealing surface and sulfur-resistant core material assure fine performance of wear-resistant and corrosion-resistant.
Integral forged body with fine mechanical properties.
Check valve shall be hydro-tested prior to delivery for sale performance.
Description:
Check valve creates the metal-to-metal seal by the pressure of the medium, the more the pressure is, the better the sealing effect is. Anytime the valve chamber can bear the pressure of the pipeline. The sealing face between valve core and valve body is welded with hard alloy with good abrasion resistance and anti-scour;the valve core is made of sulfide-resistance steel and the others adopt the process of hardness limit so the valve is able to be used in H2S condition. Check valve is designed and produced entirely according to the requirements of API 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 6A Standard.
Applications
Used for for the prevention of back flow in high pressure and/or high temperature mud lines, choke & kill manifolds and Christmas tree injection and kill lines.
Sheet
| item | Component |
| 1 | Nut |
| 2 | Stud |
| 3 | Bonnet |
| 4 | Bonnet (Gasket |
| 5 | Spring |
| 6 | Packing box |
| 7 | Sealing ring |
| 8 | Seat |
| 9 | Body |
| 10 | Dust sealing ring |
| 11 | Lock Screw |
| 12 | Bottom cap |
| 13 | Screw |
Specification
| Product Name | Check Valve |
| Working Pressure | 2000 PSI~20000 PSI |
| Nominal Bore | 1 13/16”~7 1/16” |
| Temperature Level | K,L,P, R, S,T, U |
| Working Medium | oil, Nature gas, mud |
| Material | AISI 4130 (Integral Forged) |
| Body Material | Carbon Steel, Stainless Steel |
| Material Class | AA, BB, CC,DD,EE, FF |
| End Connection | API 6A Flange |
| Standards | API 6A, API 16C
NACE-MR0175 |
| Product Specification Level | PSL 1~PSL4 |
| Performance Requirement | PR 1~PR 2 |
| Paint Color | Red or Customized |
| Application | Mud Choke Manifold
Kill Manifold Wellhead Christmas Tree Connection |
