Casting steel Gate Valve

DESIGN DESCRIPTION:
* BOLTED BONNET AND WELDING BONNET;
* OUTSIDE SCREW AND YOKE FLEXIBLE WEDGE,
* FULLY GUIDER;
* 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 3352
FACE TO FACE DIN 3202 F5 DIN 3202 F5 DIN 3202 F7
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" 24"
PN 25 1/2" 24"
PN 40 1/2" 16"
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.4 BACKETSEAT PART NO.9
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) F304 F304
OTHER MATERIALS ARE AVAILABLE UPON REQUEST.