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CAST STEEL GATE VALVE, CLASS 150~500
Product Range
·OSY, Ring Stem or Non-Ring Stem
·570℃ Max. Operation temp
·Size from 2 to 60 inch
·ANSI 150lb~2500lb
·Class150-Class900:Bolt connect bonnet,
·Class1500-Class2500:Pressure seal bonnet
Design Features
·Design and Manufacture: ASME B16.34 API 600 (ISO10434)
·End Flange: ASME B16.5 Butt Welding : ANSI B16.25
·Face to Face: ASME B16.10
·Flexible Disc
·NPS≤10″: Seat Ring of screw thread, NPS≥12: Seat Ring of solder
·Optional Lengthen Stem
Test
Nominal pressure Shell Test (Water) Sealing Test (Water) Sealing Test (Air) MPa PSI MPa PSI MPa PSI 150 3.0 430 2.2 315
0.4-0.7
60-100 300 7.7 1110 5.7 815 600 15.3 2220 11.3 1630 900 23.0 3330 17.0 2445 1500 38.4 5560 28.2 4080 2500 64.0 9255 47.0 6790
Service
Gate valve??are advantageous in applications involving slurries, as their gates can cut right through the slurry. They are also used in fire protection, water supply, metallurgy, chemical fertilizer, electric power industry, and sewerage of machining industry etc under nominal pressure of CLASS 150-2500LBS and working temperature of -29~℃.
They are available in large sizes to better handle thick flow. However, gate valves do have low-pressure limitations, and are not optimal in applications that require cleanliness or sanitary conditions. They are excellent for use anywhere a shutoff valve is needed. They can also be used where throttling capabilities are desired, although this is not generally recommended as erosion of the seat and disc occurs due to the vibrations of the disk in throttling applications.
Primary parts material and performance
Body Bonnet Disc Stem? Seal face Gasket PACKING Operation temp (℃) Medium WCB F6a 13Cr
STL
BODY MATERIAL
NYLON
? 1Cr13/FLEXIBLEGRAPHITE SFB-2?80-Mild steel F304 F316 F304L F316L FLEXIBLEGRAPHITEBUILDUPFLEXIBLEGRAPHITE
SFB/260 SFP/260 PTFE
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