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Control valve

Huijin Valve: a professional manufacturer of regulating valves.

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D973H-16C electric butterfly valve

D973H-16C electric butterfly valve

product description

D973H electric wafer type hard seal butterfly valve, adopts precision J-shaped elastic seal ring and triple eccentric multi-layer metal hard seal structure, is widely used in metallurgy, electricity, petrochemical, water supply and drainage and municipal For industrial pipelines such as construction, it is used to regulate the flow rate and load the fluid. The valve adopts a three-eccentric structure. The sealing surfaces of the valve seat and the disc are made of different hardness and stainless steel. It has good corrosion resistance and long service life. The valve has a two-way sealing function. Test Standard.

Features

1. The valve adopts triple eccentric sealing structure, and the valve seat and butterfly plate have little wear.
2. The sealing ring is made of stainless steel. It has the dual advantages of metal hard seal and elastic seal. It has excellent sealing performance at low and high temperatures, corrosion resistance and long service life.
3. The sealing surface of the plate is made of surfacing welded cobalt-based hard alloy. The sealing surface is resistant to wear and has a long service life.
4. The large size butterfly board adopts the stern frame structure, which has high strength, large flow area and small flow resistance.
5. The valve has a two-way sealing function. It is not restricted by the flow direction of the medium and is not affected by the space position during installation. It can be installed in any direction.
6. The driving device can be installed in multiple positions (rotated 90 ° or 180 °), which is convenient for users.

The main technical parameters

Nominal diameter DN (mm)
50 ~ 2000
Nominal pressure PN (MPa)
0.6
1.0
1.6
2.5
Seal test (MPa)
0.66
1.1
1.76
2.75
Strength test (MPa)
0.9
1.5
2.4
3.75
proper temperature
Carbon steel: -29 ℃ ~ 425 ℃ stainless steel: -40 ℃ ~ 650 ℃
Applicable medium
Water, air, natural gas, oil and weakly corrosive fluids
Leak rate
Comply with GB / T13927-92 standard
Drive way
Worm gear drive, electric, pneumatic, hydraulic

Material of main parts

Part Name
Material
Valve body
WCB, alloy steel, stainless steel, QT450-10
Butterfly
WCB, alloy steel, stainless steel, QT450-10
Valve shaft
2Cr13 stainless steel, alloy steel
Sealing ring
Stainless steel ring
Filling
Flexible graphite

Adopted standards

Manufacturing Standards
JB / T 8527-97
Flange standard
GB9113-2000
Structure length standard
GB12221-89
Inspection standards
GB / T 13927-92
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