HBD741X(H) Hydraulic Controlled Slow Closing Check Butterfly Valve

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