VALVES, PISTON, A-216WCB CAST STEEL BODY., WITH GRAPHITE SEALING RINGS., MFR. : TRAUWAY & CAUVIN, FRANCE, TYPE : KVMS, MATERIALS:, – COVER : FORGED CARBON STEEL, – PISTON : 17 PERCENT CHROMIUM STEEL, – STEM : 13 PERCENT CHROMIUM STEEL, – HANDWHEEL : CAST IRON, – BOLTING : ASTM A193 B7 & A194 2H, CLASS : 300 LBS, TYPE OF CONNECTIONS: SOCKET-WELD ENDS TO, ANSI B16-11, MAX WORKING TEMP.: 29 TO 400 DEG C., NOM.SIZE(DN) END TO END, MM IN MM, 20 3/4 103, NOTE:, – APPROVED ALTERNATE: SPIRAX SARCO, RP32 (UK)