900X Emergent-Closing Valve

900X Emergent-Closing Valve (pic 1)

900X emergent-closing valve structure and purpose

900X Emergent-Close Valve is used in the living and fire-fighting emergent water supply system. It supplies living water in the normal conditions. And in case of a fire, close automatically the living water and open the fire-fighting one to make it enough, and when the fire-fighting water stops and the pressure is reduced, resets the living water automatically. Thus making the system no need to set a separate fire-fighting water supply pipeline, this saves both engineering construction cost and daily water quantity used greatly. It features by the sensitive control, safety, reliability, simple debugging and long duration.

900X emergent-closing valve external and connection dimensions

DN(mm) 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800
L 180 180 180 203 203 235 280 360 400 455 585 650 800 860 915 980 1075 1230 1300 1450
PN10 D 105 115 135 145 160 180 195 215 245 280 335 390 440 500 565 615 670 780 895 1010
D1 75 85 100 110 125 145 160 180 210 240 295 350 400 460 515 565 620 725 840 950
PN16 D 105 115 135 145 160 180 195 215 245 280 335 405 460 520 580 640 705 840 910 1020
D1 75 85 100 110 125 145 160 180 210 240 295 355 410 470 525 585 650 770 840 950
PN25 D 105 110 135 145 160 180 195 230 270 300 360 425 485 550 610 660 730 840 955 1070
D1 75 85 100 110 125 145 160 190 220 250 310 370 430 490 550 600 660 770 875 990
H 342 342 342 395 395 405 430 510 560 585 675 730 760 840 910 1070 1135 1270 1460 1640
H1 247 247 247 278 278 298 313 350 365 420 450 470 490 526 570 610 665 725 865 975

Note: Either elastic seat ring sealed gate valve or butterfly valve can be selected in the schematic of installation. Recommend to select the butterfly valve in case of ≥DN350

900X emergent-closing valve main technical features

Nominal Pressure 1.0MPa 1.6MPa 2.5MPa
Shell test pressure 1.5MPa 2.4MPa 3.75MPa
Sealed test pressure 1.1MPa 1.76MPa 2.75MPa
Suitable temperature ≤80℃
Suitable medium water

900X emergent-closing valve schematic diagram of installation

900X Emergent-Closing Valve (pic 2)

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