Butterfly valve(butt welded type) Triple offset butterfly valve Specifications: Design standards: API609 Inspection and Test: API598 1) Pressure Class:150Lb--300Lb 2)Size:2"-48" 3) Temperature: -29oC?425oC(WCB)-196?600oC(SS)<=570oC Alloy steel 4)Suitable Medium: water/vapor/oil/gas/steam 5) Body material: Cast steel/stainless steel/Cr.Mo.steel/other special material 6)Disc material:Cast steel/alloy steel/stainless steel/Cr.Mo.steel/other special material 7) Stem material: 410/304/304L/316/316L/38CrMoAlA/25Cr1MoV 8)Packing: graphite 9) Operation: Handwheel,wormgear, pneumatic actuator etc.