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Home > Products > Butterfly valve > Electric speed regulating butterfly valve

Description Material Performance Product Size Specifications

As a new generation of speed control valve, the valve to change from the traditional design ideas on mechanical transmission to complete the switching speed change disc mode, according to the different position of butterfly plate movement characteristics, a new design is made from electric drive control. This series of butterfly valve electric device to change the input current frequency, rotation speed and output torque and then adjust the electric device, in order to control the switching speed of the disc, the disc to achieve fast closing and slow off the two stage closed or slow opening, fast opening stage to open two. And liquid control butterfly valve has the same function。

Part name	Material Science	Remarks
Valve body, butterfly plate, end cap	HT200、HT250、QT450-10
Valve shaft, taper pin	2Cr13
Sealing ring of valve body	1Cr18Ni9Ti、2Cr13
Butterfly plate sealing ring	NBR、1Cr18Ni9Ti
Bearing	SF-1、 SF-2	Self lubrication
filler	NBR

Design and manufacture	Flange connection size	Structure length	Pressure test
GB12238	GB2555-2526-8	GB12221	GB/T13927

六、DV943X/HElectric speed regulating electric butterfly valve shape main connection size unit:mm：

PN	DN	L	A	H1	H2	DO	B1	B2	B3	B4
0.25MPa	1000	410	-	817	1303	400	225	709	303	770
	1200	470	1200	812	1529	400	225	709	303	760
	1400	530	1400	1020	1692	400	225	728	303	760
	1600	600	1600	1145	1885	400	275	843	385	778
	1800	670	1800	1315	1924	400	275	879	385	792
	2000	760	2000	1670	2095	400	275	969	450	856
	2200	840	2200	1739	2487	400	430	1103	540	995
	2400	910	2400	1699	2595	400	430	1103	540	995

PN	DN	L	A	H1	H2	DO	B1	B2	B3	B4
0.6MPa	800	318	-	667	1190	500	175	583	230	683
	900	330	-	745	1245	400	225	709	303	770
	1000	410	-	817	1303	400	225	709	303	760
	1200	470	1200	912	1529	400	225	728	303	760
	1400	530	1400	1041	1693	400	275	843	385	778
	1600	600	1600	1145	1885	400	275	879	385	792
	1800	670	1800	1346	1924	400	275	969	450	856
	2000	760	2000	1670	2095	400	430	1103	540	995
	2200	840	2200	1739	2487	400	430	1103	540	995
	2400	910	2400	1850	2595	400	430	1103	540	995

PN	DN	L	A	H1	H2	DO	B1	B2	B3	B4
1.0MPa	500	229	-	548	943	500	145	533	162	610
	600	267	-	583	985	500	175	583	230	683
	700	292	-	612	1075	500	175	583	230	683
	800	318	-	677	1190	400	225	709	303	770
	900	330	-	745	1245	400	225	709	303	760
	1000	410	-	817	1303	400	225	728	303	760
	1200	470	1200	948	1529	400	275	843	385	778
	1400	530	1400	1158	1692	400	275	879	385	792
	1600	600	1600	1285	1885	400	275	969	450	856

Product use：

　　 The valve is used to pump outlet position of medium is water, the water pipe, as both characteristics of closed-circuit valve check valve, to avoid and reduce the medium in the pipeline system and the backflow of water hammer protection. Especially, pipeline is very reliable for power plant power supply etc.。

四、Product features：

1、Electric opening and closing, with arbitrary adjustment, check and stop function. Easy to operate, safe and reliable。
2、The valve can continuously realize the action of slow opening, fast opening or fast closing and slow closing, and effectively prevents the backflow of the outlet medium of the pump and the generation of water hammer.
3、Energy saving drive, with ordinary butterfly valve the same drive motor can be achieved fast closing small high-speed torque and slow down low torque function。
4、Installed in the pump outlet, the butterfly valve also has a common function of check and gate valve, so a valve on behalf of the two valve, saving installation space, saving pipe network cost。
5、Flow resistance small. When the valve is fully open, the flow resistance coefficient is not more than 0.3, thus saving energy and reducing pipeline operation cost.。
６、When an accident or power failure, you can manually control the butterfly valve opening and closing。

五、Main technical parameters：

Nominal pressure（MPa）		0.25	0.6	1.0
Nominal（mm）		1000～2400	800～2400	500～1600
Test pressure	strength test	0.375	0.90	1.5
	Seal test	0.275	0.66	1.1
Applicable medium		Water and sea water
Applicable temperature（℃）		≤80℃
Installation method		Vertical and horizontal

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