DESIGN DESCRIPTION: * BOLTED BONNET AND WELDING BONNET; * WELDING SEAT; * INTEGRAL SEATS; * HANDWHEEL OPERATOR; * AVAILABLE WITH GEAR OPERATOR; * FLANGED ENDS OR BUTT-WELDING ENDS; * RISING FLANGE OR RING TYPE JOINT. WORKING PRESSURE AND TEMPERATURE WORKING TEMPERATURE MATERIAL CELSIUR SCALE FAHRENHEIT CARBON STEEL -290C~4250C 60F~8220F STAINLESS STEEL -400C~5500C 150F~10470F GENERAL DESIGN SPECIFICATIONS: ITEM DIN PN 16 DIN PN 25 DIN PN 40 MANUFACTURE DIN 3356 FACE TO FACE DIN 3202 F1 END FLANGE DIN 2543 DIN 2544 DIN 2545 INSPECTION AND TEST DIN 3230 TEST PRESSURE TO DIN 3230: TRIMS SPECITIED DUE TO TABLE 3: PRESSURE GRADE FROM TO PN 16 1/2” 12” PN 25 1-1/2” 12” PN 40 1/2” 8” DIN SHELL (WATER) SEAT (WATER) SEAT (AIR) BACK SEAT(WATER) PN 16 2.4MPa 1.76MPa 0.6MPa 1.76MPa PN 25 3.75MPa 2.75MPa 0.6MPa 2.75MPa PN 40 6.0MPa 4.4MPa 0.6MPa 4.4MPa DISC SEAT SURFACE PART NO.3 BODY SEAT SURFACE PART NO.2 STEM PART NO.5 BACKETSEAT PART NO.10 F6 F6 F6 F6 STELLITE STELILITE F6 F6 F6 STELILITE F6 F6 F304 F304 F304 F304 F316 F316 F316 F316 MONEL MONEL MONEL MONEL ALLOY 20 ALLOY 20 ALLOY 20 ALLOY 20 HASTELLOY B HASTELLOY B HASTELLOY B HASTELLOY B BRONZE BRONZE BRONZE BRONZE CF8 R-PTFE(INSERT) S.S. S.S. OTHER MATERIALS ARE AVAILABLE UPON REQUEST.