D series butterfly valve-Hydraulic Control Butterfly Valve for Pumping Station
Time:2018/8/3 14:22:55

Features and Applications

PRECISE® Hydraulic Controlled Butterfly Valve for pump station is a kind of advanced,intelligent pipeline control equipment. It mainly used as pump outlet control valve in pump station for conduction, cutting-off and non-return.

The valve has the following main characteristics:

1.Switching on by hydraulic and switching off by heavy hammer;

2.In order to reduce the risk of water hammer, switching off in fast and slow closing in stages is available;

3.The linkage of pump valve control is available;

4.Reliable on switching off the valve by heavy hammer. Reliable on sealing performance;

5.With double-eccentric structure;

6.Mechanical, electrical, hydraulic control are highly integrated;

7.Meet the requirements of " Unattended, Few people attended " of pump station.

Technical and Performance Parameters

1.Technical Parameters

Nominal Diameter


Nominal Pressure


Test Pressure Applied Temperature
Applied Medium
Valve Body
300~1800 2.5 3.75 2.75 ≤ 80 Water, Sea water, Water included Silt and etc.
300~2000 1.6 2.4 1.76
300~2400 1.0 1.5 1.1
1200~3000 0.6 0.9 0.66
2000~3000 0.25 0.375 0.275

2. Performance Parameters

Items DN<1000 1000≤DN<2000 DN≥2000
Time of Valve Opening (Adjustable) s 20~60 25~60 25~60
Time of Valve Closing s (Adjustable) Fast 1.7~15 2.5~20 3~20
Slow 3~60 6~60 6~60
Angle of Valve Closing (Adjustable) Fast 70°±10°
Slow 20°±10°
Leakage Rate Rubber Seal Grade A GB/T13927
Metal Seal Grade D GB/T13927
Flow Resistance Coefficient The minimun flow resistance coefficient is 0.15

Note: When valve is full opened, the angle is 0° , but full closed, the angle is 90°

Material of Main Components

Items Material
Valve Body Gray Cast Iron (GB/T12226)、Ductile Cast Iron (GB/T12227)、Carbon Steel (GB/T3274)
Valve Disc Gray Cast Iron (GB/T12226)、Ductile Cast Iron (GB/T12227)、Carbon Steel (GB/T3274)
Valve Shaft Carbon Steel (Surface Treatment for Anticorrosion)、Stainless Steel (GB/T1220)
Valve Body Seal Ring Stainless Steel (GB/T4237)
Valve Disc Seal Ring Top Quality Rubber or Stainless Steel

Product Technical Standards

Product Standard Pressure Test Standard Flange Standard Length of Face-to-face
JB/T5299 GB/T13927 Cast Iron Flanges GB/T17241 GB/T12221
Steel Flanges GB/T9115

Overall Dimensions of Butterfly Valve for Pumping Station

Specification and Installation Dimensions of Hydraulic Control Butterfly Valve for Pumping Station

Explanation on Product Type


① Type code:D20, Hydraulic control Butterfly Valve for pumping station

② Drive mode code:HY - hydraulic drive (accumulator tank),HW - hydraulic drive (weight hammer)

③ Nominal diameter DN:Unit mm

④ Sealing code: X-rubber; H-stainless steel;

⑤ Arrangement style code:Single driving device:Type A; Type B; Type C; Type D Others omit.

⑥ Nominal pressure code:10 times of the nominal pressure Bar,Unit Bar (10xMPa)

⑦ Characteristic code: A1~A9;B1~B9......

Type Illustration:

Nominal diameter 1800mm, nominal pressure 1.6MPa, rubber sealing, single weight hammer hydraulic control butterfly valve for Pumping, type: D20HW1800XB-16A1.

Installment and Arrangement Styles of Hydraulic Butterfly Valve

Description for Order

In order to your convenience, please mark out product name, type and specification, product technical and performance parameters, product technical standards, material and standards of main components, installation type and other special requirement. According to your requirement, we can also provide other wearing parts such as seal ring, packing combination ring and so on.

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








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