API 602: Steel wedge gate valve  for Sizes 4" and Smaller for the Petroleum and Natural Gas Industries.
BS 5352: Specification for Steel Wedge Gate Valves 50 mm and Smaller for the Petroleum, Petrochemical and Allied Industries.
Connection: ASME B16.34 Valves Flanged, Threaded and Welding Ends
Flange: ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through 24
ASME B16.47 Series A Large Diameter Steel Flanges: NPS 26 Through NPS 60 Metric/Inch Standard
Butt Weld:ASME B16.25 Buttwelding Ends
Face to face:ASME B16.10 Face to Face and End to End Dimensions of Valves
MSS SP-25 Standard Marking System for Valves, Fittings, Flanges and Union
BB, OS&Y: Bolt Bonnet, Outside screw and Yoke

Materials
Size Range: 1/2" - 2" / DN15—DN200
Pressure rating: ANSI Class150LB- 2500LB / PN16- PN100
Forged Steel:  ASTM A105, ASTM A350 LF1, ASTM A350 LF2, etc.
Stainless Steel:  ASTM A182 304 , ASTM A182 304L, ASTM A182 316, ASTM A182 316L, ASTM A350 F11, ASTM A350 F22, ASTM A350 F51, ASTM F347, etc.
Operation: Handwheel, Gearbox
Test : API598
Report: CHEMICAL ANALYSIS OF MATERIAL CERTIFAICATE EN 10204 3.1B