300X Non-Surge Check Valve, Cast iron, Ductile iron, WCB

300X Non-Surge Check Valve, Cast iron, Ductile iron, WCB

300X Non-Surge Check Valve, Cast iron, Ductile iron, WCB

Short Description

Model No.: SJ-HV-05 Hits: 80

China Non-Surge Check Valve Manufacturer Shinjo Supplies 300X Non-Surge Check Valve, Cast iron, Ductile iron, WCB.
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Key Specifications / Features

Overview
 
300X Non-Surge Check Valve closes automatically in case of prevent mediums back-flow. The Non-Surge Check Valve allows flow when inlet pressure in higher than the outlet pressure.
The valve has the principal of slow-open, quick-close and slow-close into one to prevent water hammering when the pump starts or closes. Non-Surge Check Valve opens and closes at controlled speed to ensure smooth flow.
Used on the pump outlet of a water supply system to prevent mediums back-flow, water hammer and water shock. It has three functions as an electric valve, check valve and water hammer remover.
It is capable of improving the safety and reliability of the water supply system effectively through integrating the technical principle of slow-open, speed valve, slow-close, and removing water hammer and preventing of both pump-starting and pump-stopping water hammer.
The gate can carry out open-close automatically upon the operation rules of the water pump just by operating the pump to open or close electrically. Hydraulic Check Valves features by the big flow and small pressure loss, reliable sealing performance, easy installation, debugging and maintenance and long duration.
Notes:
Size below DN 450 is Diaphragm type valve
Size equal and above DN 500 is piston type valve

Materials

300X Non-Surge Check Valve Structure
 
Serial No. Part Material
1 Body Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
2 Seat 410 S.S. / SS 304 / SS 316
3 Stem 410 S.S. / SS 304 / SS 316
4 O-ring washer Cast Iron
5 O-ring NBR
6 O-ring NBR
7 Disc Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
8 Diaphragm Rubber
9 Diaphragm washer Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
10 Nut Bronze
11 Spring Spring steel
12 Cover Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
13 Ball valve Bronze
14 Ball valve Bronze
15 Pressure show  
16 Hang ring Steel
17 Pilot socket Pilot socket
18 Single way valve Bronze
19 Needle valve Bronze
20 Stud Steel
21 Nut Steel

Dimensions

300X Non-Surge Check Valve Dimensions
DN mm 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800
L 180 180 180 203 203 235 285 360 400 455 585 650 800 860 915 980 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 172 172 172 265 265 310 350 460 520 570 695 780 905 1025 1080 1030 1135 1270 1460 1640
H1 106 106 106 210 210 215 245 305 365 415 510 560 658 696 735 610 665 725 865 925

Installation

300X Non-Surge Check Valve Application

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