API 6A Integral Forged Swing Check Valve for Wellhead

Description

API 6A Integral Forged Swing Check Valve for Wellhead

API 6A Check Valve, also referred to non-return valve, or one-way valve, is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. An important concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate. We can produce both swing type check valve and lift type check valve. Available in bore sizes from 1-13/16″ to 7-1/16″ and pressure ratings from 2,000 to 15,000 PSI. The standard material is forged AISI4130 alloy. All of our Check Valves are fully designed, manufactured, and tested as per 6A and 16C standards and have been widely used on oilfield wellhead Christmas tree and manifolds with reliable performance.

  • Sealing is energized by flow fluid pressure, sealing performance gets better while pressure increasing.
  • 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 safe performance.

 

Bore Size 1 13/16″~7 1/16″ (46mm~180mm)
Working Pressure 2,000psi – 15,000psi
Material Class AA – HH
Working Temperature P-U
PSL 1 – 4
PR 1 – 2

 

Flanged End Dimensions (mm)

2000 PSI Working Pressure

Size Bore(φB) L H Weight (kg)
2.1/16″ 52.5 295 160 55
2.9/16″ 62.7 333 175 70
3.1/8″ 77.9 359 190 90
4.1/16″ 102.3 435 230 150
7.1/16″ 146.3 562 310 330

 

Flanged End Dimensions (mm)

3000 PSI Working Pressure

Size Bore(φB) L H Weight (kg)
2.1/16″ 49.3 371 180 65
2.9/16″ 59.0 422 200 95
3.1/8″ 73.7 384 215 110
4.1/16″ 97.2 460 270 225
7.1/16″ 146.3 613 320 400

 

Flanged End Dimensions (mm)

5000 PSI Working Pressure

Size Bore(φB) L H Weight (kg)
2.1/16″ 42.9 371 190 75
2.9/16″ 54.0 422 210 115
3.1/8″ 66.6 473 230 130
4.1/16″ 87.3 549 300 300
7.1/16″ 131.8 711 335 560

 

Flanged End Dimensions (mm)

10000 PSI Working Pressure

Size Bore(φB) L H Weight (kg)
2.1/16″ 52.4 521 280 130
2.9/16″ 65.1 565 297 175
3.1/16″ 77.8 619 290 207
4.1/16″ 103.2 670 350 450
5.1/8″ 130.2 737 400 600

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