D series butterfly valve-Vaccum Butterfly Valve
Time:2018/8/3 17:03:14

Features and Applications

The Vacuum Butterfly Valve is a new type of butterfly valve with high performance. According to the difference of drive unit, it is divided into Electric Vacuum Butterfly Valve and Manual Vacuum Butterfly Valve.

It is mainly composed of valve body,valve disc,valve shaft, sealing ring,drive unit and so on. The drive unit drives the valve shaft, which makes the valve disc rotate within the range of 90° relative to valve body.Finally, it fulfills the purposes of valve operation and flow control.

The valve can cut-off the medium from two directions, and can realize reliable seal without any leakage from two directions.

The valve adopts self-lubricating bearing which has small frictional coefficient.

The shaft seal adopt self compensating structure which can separate the pipe inside from atmosphere, so vacuum of pipeline is assured. The valve disc sealing ring can be replaced without removing the valve from pipeline.

The Electric Vacuum Butterfly Valve is driven by electric actuator. It has many characteristics such as reliable performance and flexible operation. It can be operated on the spot and realize the remote centralized control. The manual mechanism is attached to the electric actuator, which can be used if it is necessary.

According to the operating condition, you can choose the protective device such as electric tracing and so on which can assure the reliable service when the Vacuum Butterfly Valve is used in severe environment, such as outdoors, low temperature, et.

The Vacuum Butterfly Valve are widely used in the air cooled condenser system of air cooling power generation unit in thermal power stations, applied in the medium such as water or air or vapour, which temperature will not exceed 200℃.


Technical and Performemce Parameters


Nominal Diameter
mm
Nominal Pressure
MPa
Test Pressure
Applied Temperature
Applied Medium
Valve Body
MPa
Seal
MPa
1000~3000
0.25~1.0
1.5×PN
1.1×PN
≤200
Water, Vapour and Air


Material of Main Components


Components
Material
Valve Body
Carbon Steel、Stainless Steel
Valve Disc
Carbon Steel、Stainless Steel
Valve Body Sealing Ring
Stainless Steel
Valve Shaft
Stainless Steel or 35 (40Cr) after rust-proofing treatment
Valve Disc Sealing Ring
Stainless Steel、EPDM、Silicon Rubber


Product Technical Standards


Product Standard
Pressure Test Standard
Flange Standard
Length of Face-to-face Standard
GB12238
GB/T13927
GB/T9115
GB12221


Overall and Structure Dimensions



DN
mm
PN
MPa
H1
H2
D
D1
D2
L
L1
L2
n- d
D3
Motor Power
(KW)
1000

0.25

0.6

410
780
1000
1078
1078
1175
1175
1490
1510
690
710
590
590
28-Φ30
28-Φ30
1120
1120
2.2
2.2
1200

0.25

0.6

490
780
1200
1295
1295
1375
1405
1730
1760
790
810
610
610
32-Φ30
32-Φ33
1320
1340
3.0
3.0
1400

0.25

0.6

530
880
1400
1510
1510
1575
1630
2090
2110
890
910
790
790
36-Φ30
36-Φ36
1520
1560
3.0
3.0
1600

0.25

0.6

600
880
1600
1710
1710
1790
1830
2490
2510
1040
1060
790
790
40-Φ30
40-Φ36
1730
1760
3.0
3.0
1800

0.25

0.6

670
980
1800
1918
1918
1990
2045
2790
2810
1180
1200
790
790
44-Φ30
44-Φ39
1930
1970
3.0
3.0
2000

0.25

0.6

760
980
2000
2125
2125
2190
2265
3040
3060
1330
1350
820
820
48-Φ30
48-Φ42
2130
2180
3.0
3.0
2200

0.25

0.6

760
1080
2200
2335
2335
2405
2475
3230
3250
1420
1440
820
820
52-Φ33
52-Φ42
2340
2390
3.0
3.0
2400

0.25

0.6

760
1080
2400
2495
2545
2605
2685
3480
3520
1560
1590
820
910
56-Φ33
56-Φ42
2540
2600
3.0
3.0
2600

0.25

0.6

800
1180
2600
2695
2750
2805
2905
3660
3700
1680
1700
910
910
60-Φ33
60-Φ48
2740
2810
5.5
5.5
2800

0.25

0.6

800
1180
2800
2910
2960
3030
3115
3900
3940
1800
1830
910
910
64-Φ33
64-Φ48
2960
3020
5.5
5.5
3000

0.25

0.6

800
1180
3000
3110
3160
3230
3315
4430
4460
1970
2000
910
940
68-Φ33
68-Φ48
3160
3220
5.5
5.5

Note: The Vacuum Butterfly Valve equipped with bracket if the nominal diameter is larger than or equal 2400 mm.


Explanation on Product Type

 

 

Type Illustration:

DN 2400, PN 0.25MPa, flange connection electric drive, rubber double seal acuum valve.

Type:D30E2400S1-2.5A1.


Description for Order

1.Please mark with the valve specification, type, applied medium, working temperature, working conditions, working pressure and so on in the order.

2.The position of changeover speed gear and hand wheel can be assembled according to the customer , s demand. Please mark with your requirements in the order technical condition.

3.The connection sizes D, D1, D2, D3, n-Φd overall dimensions are according to GB/T9115 ( when the material of valve body is carbon steel), the face to face dimension L is according to GB12221 which series is wafer or double fanges. The other dimensions are reference dimensions.

4.The electric butterfly valve delivers without separate electric control box generally. Please mark it out if you need.


Inquiry
Hunan Prince Fluid Equipment Co.,Ltd.
Hunan Precise Fluid Equipment Co., Ltd. is a high-tech professional manufacturer which is mainly engaged in high quality valves manufacturing and related fluid equipments company combining researching, designing, producing, sales and technical services, It is t...

Add:No. 195, Zhengda Road, environmental protection science park, Yuhua District, Changsha, Hunan

Tel:86-0731-88567788

Phone:86-13908488348

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