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Float Control Valves

Features

This valve maintains constant liquid level in a tank. The pilot is sensitive to slight changes in level. The main valve open when level drops and closes when level rises. The valve consists of basic valve and buoyancy pilot and controls the outflow in a water tank supply. It is installed on the inlet of a water pool or tower. 100X Float Control Valves is controlled by the floating pilot valves to close the inlet to stop water supply when the water level gets to the preset height and to open the inlet to supply water to the water tower or pool when the water level is lower than the preset one, so as to realize the automatic water control according to the changing water level. It features by the high accuracy of level control, water pressure disturbance resisting, mountable on any positions, reliable seal performance, easy installation, maintenance, debugging and check, long duration (The floating pilot valve can be separately mounted from the main one).

Float Control Valves
Float Control Valves

DN 450 Diaphragm type valve
DN 500 piston type valve
Notes:
1. Float Ball Pilot Valve
2. Ball Valve
3. Needle Valve

Technical Parameters

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

Materials

Materials: Float Control Valves
Serial No. Part Material
1 Body Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
2 Seat 2Cr13 / SS 304 / SS 316
3 Stem 2Cr13 / SS 304 / SS 316
4 O-ring Gasket 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 Ductile Iron
10 Nut Bronze
11 Spring Spring steel
12 Cover Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
13 Pilot valve Bronze
14 Ball valve Bronze
15 Hang ring Steel
16 Pilot socket Bronze
17 Needle valve Bronze
18 Screw Steel
19 Stud Steel

Dimensions

DNmm 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 212 212 212 265 265 310 350 460 520 570 695 780 905 1025 1080 1030 1135 1270 1460 1640
H1 179 179 179 210 210 215 245 305 365 415 510 560 658 696 735 610 665 725 865 975

Typical Installation

Typical Installation of Float Control Valves
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