Forged steel Gate valves are mainly used for the pipelines on various systems of thermal power station, especially for non-corrosive mediums like water and steam.
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 YokeMaterials
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
Forged steel gate valve offers the following advantages: 1 forged steel gate valve fluid resistance is small, medium distressed by the sealing surface brush and water erosion. (2) forged steel gate valve for Class150 ~ 2500, operating temperature -29 ~ 425 ℃ (carbon steel) or -29 ~ 500 ℃ (stainless steel) of small diameter pipeline, the pipeline used to cut off or connected to the media.
3 simple welded forged steel valve body, a short length of the structure, manufacturing process, good for a wide range.
4 gate is placed perpendicular to the valve body, and the level of cut-off valve flap is placed in the valve body, valve and thus shorter than the length of the structure.
5 forged steel gate valve of the internal media channel is through the medium flowing through the valve does not change its flow direction, so the fluid resistance.
6 forged steel gate valve movement direction perpendicular to the direction of the fluid can be fully open and fully closed.
7 use of different materials, can be applied to water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media.
8 socket weld forged steel gate valve medium flows unrestricted, non-spoiler, not reduce the pressure.
9 very good sealing performance by the erosion of full-time small sealing surface.
10 stainless steel forged steel gate valve opening and closing more effort.
11 is relatively simple shape, the casting process is better for a wide range.