Special fire signal resilient seated gate butterfly valve pressure
1.0 - 2.5MPa for automatic spraying water pipeline in fire protection system
Signal gate valve and signal butterfly valve are used in automatic
spraying water pipeline in fire protection system to monitor the
water supplying pipeline and can indicate the valve's opening in a
long distance.Rising stem gate valve and opening indicator gate
valve are often used in fire protection system, and if the
installation position is high to the ground, rising stem gate valve
is used and can show the valve's opening clearly and if the
installation position is low, opening indicator gate valve is used.
Material |
No. | part | material | 1 | Transmission cap | ductile cast iron, cast steel | 2 | Handwheel | Ductile iron | 3 | Dust proof gasket | Plastic | 4 | Gasket | Buna-N rubber or EPDM | 5 | Thrust bearing | Gunmetals | 6 | Cover | Grey cast iron, ductile cast iron,
cast steel | 7 | Bolt | Carbon steel or stainless steel | 8 | Body | Grey cast iron, ductile cast iron,
cast steel | 9 | Copper nut | Gunmetals | 10 | Stem | Stainless steel | 11 | Disc | Ductile cast iron packed with rubber or EPDM outside |
|
Main technic-al parameters |
Nominal pressure: 1.0-2.5MPaWorking temp.:0-120
Flanged end:GB/T17241.6 GB9113, ASME 16.5 etc.. Nominal diameter: 50-400mmService:water, oils,
gas etc..Inspection and test:GB 13927 API 598 |
Main dimensions unit:mm
|
DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | L | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | 381 | 406 | 432 | 457 | 508 | H(full open) | 732 | 773 | 820 | 870 | 915 | 1003 | 1110 | 1263 | 1360 | 1550 | 1610 | 1900 | 1938 | 2120 |
|