Face to Face Dimensions Dual Plate
Lug Check Valves API Std 594 Class 150-2500 Type A



Dual-Plate Lug Check Valve

NPS CLass
150
F
300
F
600
F
900
F
1500
F
2500
F
2 60 60 60 70 70 70
2.1/2 67 67 67 83 83 83
3 73 73 73 83 83 86
4 73 73 79 102 102 105
6 98 98 136 159 159 159
8 127 127 165 206 206 206
10 146 146 213 241 248 254
12 181 181 229 292 305 305
14 184 222 273 356 356  
16 191 232 305 384 384  
18 203 264 362 451 468  
20 219 292 368 451 533  
24 222 318 438 495 559  
30 305 368 505      
36 368 483 635      
42 432 568 701      
48 524 629        

General notes..

  • Dimensions are in millimeters unless otherwise indicated.
  • The face-to-face tolerance shall be as specified in ASME B16.10 for sizes
    through NPS 24 and shall be 3 mm for sizes larger than NPS 24.
  • Flange faces with ring-joint grooves shall conform to the dimensions
    shown in either ASME B16.5 or ASME B16.47, as applicable.

Notes..

  • The optional configuration of a full flange or lug flange shall be
    the manufacturer's standard unless otherwise specified by the purchaser.
  • Unless otherwise specified in the purchase order, the bolt holes will be through-drilled.

Other dimensions API Check Valves

Single-Plate Wafer Check Valve
Single-Plate Wafer Check Valves
Face to Face dimensions - Single-Plate Wafer Check Valves - API Standard 594 - Pressure Classes 150 to 2500...



Dual-Plate Wafer Check Valve
Dual-Plate Wafer Check Valves
Face to Face dimensions - Dual-Plate Wafer Check Valves - API Standard 594 - Pressure Classes 150 to 2500...



Dual-Plate Double-flanged Check
Dual-Plate Double-flanged Check Valves
Face to Face dimensions - Dual-Plate Double-flanged Check Valves - API Standard 594 - Pressure Classes 150 to 2500...





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