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Pneumatic fixed ball valve
Product model: Q647F
Nominal diameter: DN50 ~ 500mm
Nominal pressure: PN1.6 ~ 6.4MPa
Applicable temperature: -28 ℃ ~ 300 ℃
Applicable medium: water, steam, oil, nitric acid, acetic acid
Drive mode: manual, pneumatic
Structure length according to: GB1221-89
Flange size: GB9113, JB79-59
Inspection test according to: JB / T9092-99

Overview of pneumatic fixed ball valve

Pneumatic fixed ball valve, pneumatic ball valve, ball valve is a two-way valve, the flow direction is unlimited. The middle flange is connected with studs, and the upper and lower valve stems are provided with sliding bearings to reduce friction, and the operation is labor-saving and stable. Under normal conditions: When the pressure is low, the valve seat seal relies on the spring pre-tightening force to make the valve seat close to the ball to achieve sealing. When the pressure is high, a piston effect is formed on the valve seat. Under the action of the upstream medium pressure, the valve seat is pressed against the ball To achieve sealed, pneumatic fixed ball valve, pneumatic ball valve, ball valve is widely used in process control systems to achieve on or off.

Technical parameters of pneumatic fixed ball valve

Valves transfer method Link form structure type Sealing surface Nominal pressure (MPa) Body material
Ball valve 6-Pneumatic
6s-pneumatic with manual
4-flange type
Fixed ball thru F-fluoroplastic
H-alloy steel
PPL
1.6
2.5
4.0
6.4
Valve body material code in the table
Nominal diameter DN (mm) 50-500
Material code C P R
main part Valve body WCB ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti
Ball board 2Cr13 1Cr18Ni9Ti 1Cr18Ni12MoTi
Valve stem 2Cr13 1Cr18Ni9Ti 1Cr18Ni12MoTi
Sealing ring Reinforced polytetrafluoroethylene
filler PTFE flexible graphite
Applicable conditions Applicable medium Water, steam, oil Nitric acid Acetic acid
proper temperature -28 ℃ ~ 300 ℃
Control type Double acting / single acting
Action type Cut / adjust
input signal Electrical signal: 0 ~ 10mA, -4 ~ 10mA, air signal: 20 ~ 100kPa
Reply voltage AC220V / DC24V
Working medium Purified compressed air
Actuator model GT series, HY series, AW series, ZSH series, etc.
Air pressure 0.4 ~ 0.7MPa

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Installation size table of pneumatic fixed ball valve

Nominal diameter DN (mm) Size (mm) Actuator model
1.6MPa 2.5MPa 4.0MPa
L D D1 B Z-φD L D D1 B Z-φD L D D1 B Z-φD
50 203 160 125 16 4-18 216 160 125 20 4-18 216 160 125 20 4-18 Optional GTD / GTE,
AW / AWS, HY,
ZSH series actuators (The above options are only for selection and specific selection according to actual requirements)
65 222 180 146 18 4-18 241 180 145 twenty two 8-18 241 180 145 twenty two 8-18
80 241 195 160 20 8-18 283 195 160 twenty two 8-18 283 195 160 twenty two 8-18
100 305 215 180 20 8-18 305 230 190 twenty four 8-23 305 230 190 twenty four 8-23
125 356 245 210 twenty two 8-18 381 270 220 28 8-25 381 270 220 28 8-25
150 394 280 240 twenty four 8-23 403 300 250 30 8-25 403 300 250 30 8-25
200 457 335 295 26 12-23 502 360 310 34 12-25 502 375 320 38 12-30
250 533 405 355 30 12-25 586 425 370 36 12-30
300 610 460 410 30 12-25 648 485 430 40 16-30
350 686 520 470 34 16-25 762 550 490 44 16-34
400 762 580 525 36 16-30 838 610 550 48 16-34
450 864 640 585 40 20-30 914 660 600 50 20-34
500 914 705 650 44 20-34 991 730 660 52 20-41


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