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Electric eccentric hemisphere valve
Product model: Q94F / Y / H
Nominal diameter: DN40 ~ 800mm
Nominal pressure: PN1.0 ~ 4.0MPa
Applicable temperature: ≤425 ℃
Applicable medium: coal powder, coal ash, dust, gas
Flange connection size: GB / T 9113.1-2000.ASME / ANSI 16.5
Structure length: GB 12221-2005, ASNE B16.10
Manufacturing and acceptance: GB12237-89, API 6D
Pressure test according to JB / T9092-1999, GB / T13927-92, AP1598

Overview of electric eccentric hemisphere valve :

Double eccentric hemisphere valve is a device for the transportation of pulverized coal, controlled gas, particulate fluid and powder solid medium. It is a special valve for pulverized coal injection produced in metallurgy and ore dressing.


Electric eccentric hemisphere valve PQ94F / Y / H features:

1. Solve the problems of slurry, mixed liquid, dust and other media in industrial production during pipeline transportation, such as sedimentation, fouling, blockage, and the valve is not closed tightly.

2. The switch is light. When the ball is turned on, the ball is detached from the housing without any contact. The starting torque is small and the rotation is flexible. When closed, the squeezing action of the hemisphere and the valve seat can remove the dirt on the sealing surface, make the valve open and close smoothly, the safety factor is high, and the sealing performance is good.

3. The eccentric structure of the sealing surface enables the spherical surface to automatically compensate for wear, maintains the valve's seal, and has a long service life.

4. The T-type valve is a wear-resistant hard-seal ball valve. Its sealing sub-material is special, and the sealing surface must be specially wear-resistant. The treated surface reaches HRC65-72 degrees, so the wear resistance of the valve is particularly good.

5, the valve surface paint, there are two kinds of room temperature and high temperature. Imported paint with a temperature resistance of 600 ° C is used for high temperature. After spraying, the paint is not burned, charred and coked. Does not change color.


Main performance parameters and execution standards of electric eccentric hemisphere valve PQ94F / Y / H:

Nominal pressure MPa 1.0 1.6 2.5 4.0
Valve strength test pressure MPa 1.5 2.4 3.8 6.0
Valve sealing test pressure MPa 1.1 1.8 2.8 4.5
Applicable temperature ℃ ≤425 ℃ ≤325 ℃
Applicable medium Pulverized coal, coal ash, dust, gas
Flange standard JB / T82.1-94
Valve structure length standard GB12221-89


Main shape and connection size of electric eccentric hemisphere valve PQ940F / Y / H:

Nominal pressure PN (MPa) Nominal diameter DN Size (mm)
L D series 1 / series 2 D1 D2 D6 b f Z-φd
mm in Flange
1.0 40 - 125 145 110 85 - 16 3 4-18
50 - 140 160 125 100 - 16 3 4-18
65 - 190 180 145 120 - 18 3 4-18
80 - 178 195 160 135 - 20 3 4-18
100 - 200 215 180 155 - 20 3 8-18
125 - 254 245 210 185 - twenty two 3 8-18
150 - 267 280 240 210 - twenty four 3 8-23
200 - 292 335 295 265 - twenty four 3 8-23
250 - 330 390 350 320 - 26 3 12-23
300 - 390 440 400 368 - 26 4 12-23
350 - 430 500 460 428 - 28 4 16-23
400 - 530 565 515 482 - 28 4 16-25
450 - 580 615 565 532 - 30 4 20-25
500 - 630 670 620 585 - 30 4 20-25
600 - 800 480 725 685 - 34 5 20-30
700 - 900 895 840 800 - 38 5 24-30
800 - 1000 1010 950 905 - 42 5 24-34
1.6 40
Previous Product: Top- loading Eccentric Hemisphere Valve
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