DV942X-H Speed Regulating Electric Butterfly Valve

• Media: Water Vapor Oils
• Driving Mode: Electromanual Pneumatic
• Connection Form: Flange Welding
• Structure: Three-Eccentric Sealing
• Seal Form: Supercharging Pressured Sealed
• Valve Stem: Normal
• Model NO.: DV942X-H
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Sheet Metal
• Standard: National Standard
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Wooden Box
• Specification: DN50-DN2400
• Trademark: xc
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000

Product Description

Product characteristics

This series of butterfly valve adopts the frequency of changing the input current of the electric device, and then adjusts the rotation speed and output torque of the electric device, which has achieved the control of the switching speed of the butterfly plate, and realized the purpose of the butterfly plate fast closing and slow closing or slow opening and fast opening. With the hydraulic control butterfly valve has the same function. DV942X/H electric speed regulating butterfly valve is suitable for the pump outlet position of the pipeline where the medium is water and sea water. As a closed valve, it has the characteristics of check valve to avoid and reduce the backflow and water hammer impact of the pipeline system, and protect the pipeline. It is especially suitable for the occasions where the working power supply is very reliable such as power plant and water plant.
The main features of DV942X/H electric speed control butterfly valve:
1, electric opening and closing, with arbitrary speed regulation, check and cut-off functions. Easy to operate, safe and reliable.
2, the valve can continuously achieve slow opening, fast opening or fast closing, slow closing action, and effectively prevent the pump outlet media backflow and water hammer generation.
3, energy saving drive, the same drive motor as the ordinary butterfly valve can realize the function of high-speed small torque in the fast closing section and low-speed large torque in the slow closing section.
4. When installed at the pump outlet, the butterfly valve has the common function of check valve and gate valve at the same time, so it can replace two valves with one valve, saving installation space and saving pipe network cost.
5, small flow resistance. When the valve is fully opened, the flow resistance coefficient is not more than 0.3, so it can save energy and reduce the operating cost of the pipeline. 6, but in the event of an accident or power failure, you can control the butterfly valve opening and closing by manual operation.

Material standard

 

Part name	Materials	Remarks
Body, butterfly plate, end cap	HT200, HT250, QT450-10
Valve body seal ring	1Cr18Ni9Ti, 2Cr13
Butterfly seal ring	NBR, 1Cr18Ni9Ti
Bearings	SF-1, SF-2	Self-lubricating
Design: GB12238 flange Connection size: GB2555-2526-8 Structure length: GB12221 Pressure test: GB/T13927

Technical parameters

Nominal pressure (MPa)	0.25	0.6	1.0
Nominal diameter (mm)	1000 to 2400	800 ~ 2400	500 to 1600
Test pressure (MPa)	Strength test	0.375	0.9	1.5
Seal test	0.275	0.66	1.1
Applicable media	Water, sea water
Installation method	Vertical, horizontal

Connection size

 

PN	DN	L	A	H1	H2	DO	B1	B2	B3	B4
0.25 MPa	1000	410		817	1303	400	225	709	303	770
1200	470	1200	812	1529	400	225	709	303	760
1400	530	1400	1012	1692	400	225	728	303	760
1600	600	1600	1145	1885	400	275	843	385	778
1800	670	1800	1315	1824	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
0.6 MPa	800	318		677	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	1692	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
1.0 MPa	500	229		548	943	500	145	533	162	610
600	267		583	985	500	175	583	230	683
seven hundred	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