The automatic pressure-maintaining hydraulic-controlled slow-closing check butterfly valve is currently the key control equipment used at the inlet of the turbine, with good sealing and adjustment performance. Control check butterfly valve, automatic pressure maintaining hydraulic control valve.
Hydraulic Control Slow Closing Check Butterfly Valve Also Name: Butterfly Valve, Check Butterfly Valve, Slow Closing Check Butterfly Valve, Pressure Maintaining Hydraulic Control Butterfly Valve, Hydraulic Control Check Butterfly Valve, Automatic Pressure Maintaining Hydraulic Control Valve Through careful investigation and research on a variety of similar products at home and abroad, a unique hydraulic control butterfly valve with triple eccentricity as the basic structure has been created. After field application, the operating system runs well. In addition to the advantages of the eccentric structure, it also has the following obvious advantages and characteristics.
1. The driving system of this hydraulic control butterfly valve is a two-stage driving device with the same pressure. The device is small in size and has a wide range of control for the opening and closing speed of the butterfly valve. The initial opening section is controlled by high pressure and small flow, so that the butterfly valve opens instantly. Fluctuations, completely eliminate the hidden danger of water hammer in the system and then cut into a faster rotational angular speed, the hydraulic cylinder will open the butterfly plate smoothly with the ideal thrust and speed set.
2. The installation position of the butterfly valve is usually horizontal. The reasonable placement of the disc’s offset position can make the disc make full use of the hydrodynamic torque in the pipeline to drive the disc to close smoothly. The installation position of the valve will reflect the hydrodynamic torque. With the joint effect of the heavy hammer moment, with the gradual completion of the closing angle, the hydrodynamic moment will tend to decrease, and the heavy hammer moment will make the moment of closing become slow and stable, thus strictly preventing the occurrence of water hammer. The leak sealing effect will be reliably achieved in this reasonably tight control system.
3. The electro-hydraulic control system of the hydraulic control butterfly valve has the function of remote control. The opening and closing of the butterfly plate at any speed and the locking at any position can be easily realized by various types of hydraulic control valves with reasonable design.
4. The hydraulic control butterfly valve is equipped with a manual oil pump, which can be closed or opened normally when the system is powered off for some reason.
Hydraulic control butterfly valve performance
model |
Nominal pressure (MPa) |
Experimental pressure (MPa) |
Applicable temperature(℃) |
Applicable media |
|
shell body experiment |
sealing test |
||||
KD741H-6C |
0.6 |
0.9 |
0.66 |
≤65 |
water |
KD741H0C |
1.0 |
1.5 |
1.1 |
project |
Nominal diameter |
||
DN≤1000 |
DN≥1400 |
||
Valve open time (S) |
10~60 adjustable |
15~60 adjustable |
|
Valve closing time (S) |
Quick close |
1.2~25 adjustable |
2~30 adjustable |
slow close |
2~60 adjustable |
4~60 adjustable |
|
Valve closing angle (°) |
Quick close |
60°±10° |
|
slow close |
25°±10° |
Material of main parts of hydraulic control butterfly valve
name
model |
valve body |
Butterfly board |
Butterfly board sealing ring |
valve stem |
valve seat |
packing |
DX7K41H-6/10 Z |
grey cast iron |
Ductile Iron |
Nitrile rubber |
Chrome Stainless Steel |
铜合金 |
O-ring rubber |
DX7K41H-6/10 C |
carbon steel |
carbon steel |
Stainless steel |
Chrome Stainless Steel |
Stainless steel |
Flexible graphite |
Main dimensions and weight of KD7K41X automatic pressure-maintaining hydraulic control slow-closing check butterfly valve
Nominal diameter (mm) |
Main dimensions (mm) |
Weight (kg) |
|||||
L |
L1 |
E |
E1 |
H |
H1 |
||
500 |
350 |
800 |
1442 |
920 |
420 |
1100 |
1500 |
600 |
390 |
800 |
1634 |
1200 |
440 |
1500 |
1800 |
700 |
430 |
800 |
1728 |
1200 |
500 |
1200 |
2000 |
800 |
470 |
800 |
2000 |
1200 |
510 |
1210 |
2500 |
900 |
510 |
800 |
2130 |
1200 |
570 |
1270 |
3000 |
1000 |
550 |
800 |
2410 |
1300 |
620 |
1620 |
3000 |
1200 |
630 |
800 |
2600 |
1355 |
710 |
1710 |
4200 |
1400 |
710 |
800 |
2825 |
1355 |
820 |
1820 |
4900 |
1600 |
790 |
890 |
3141 |
1355 |
920 |
1920 |
5900 |
1800 |
870 |
890 |
3423 |
1760 |
1035 |
2035 |
6300 |
2000 |
950 |
890 |
3623 |
1860 |
1150 |
2140 |
6170 |
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