Hard Seal Butterfly Valve Features:1) Design and manufacture standards: ANSI B16.34, MSS SP-68, JISB20022) Inspection and test standards: API 598, JIS B2003 3) Face-to-face: ANSI 594, DIN 24014) Connection: ANSI B16.5, JIS B2212, JIS B22145) Size: 50-1,200mm, 2 - 48" 6) Class: 150lbs, 300lbs, 10k, 20k7) Temperature: ≤450oC8) Body / bonnet: WCB, A126, CF8, CF8M9) Trim: 13Cr, (Co-Cr-W) STL