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Pneumatic V-type ball valve
Model: VQ671F / VQ641F
Nominal diameter: Wafer DN25~500mm
Nominal: PN1.6 ~ 2.5MPa
Connection: Wafer / flange
Medium temperature: W1: -40 ~ 180 ℃ W2: -40 ~ 300 ℃ W3: -30 ~ 425 ℃ W4: -40 ~ 425 ℃
Body material: Carbon (C), stainless steel (P4, P6)
Design basis: GB standard
Besign criteria: GB / 12237
Ligation Blue size: GB / 9113, JB / T79
Test and test: JB / T9092
Product details

Pneumatic V-type ball valve features
 1, compact structure, small size, can be installed vertically and so on. 
 2, with excellent regulation features: V-type ball valve has an approximate equal percentage of the inherent flow characteristics and up to 300: 1 adjustable 1, compact, small size, can be installed vertically and so on. 
 2, with excellent regulation features: V-type ball valve has an approximate equal percentage of the inherent flow characteristics and up to 300: 1 adjustable ratio. V-valves therefore provide precise control over a wide range of variations. 
 3, the maximum flow volume: Due to its streamlined shape and full right-angle rotary control, so that the maximum volume is particularly high, particularly large flow capacity, flow resistance is small, so you can use smaller and more economical and practical valve size. 
 4, V-type ball valve with double bearing structure, high mechanical stability, low starting torque to ensure that the valve has excellent sensitivity and sensing speed. 
 5, the most reliable (safety): the valve body as a whole, durable, the operation from the pipeline pressure, and to avoid valve leakage. 
 6, the superior sealing of the metal seat: V-type ball valve with movable metal seat, self-compensation function, and has superior sealing performance and long service life. In the flow direction, the amount of leakage ≤ 10-6 × rated flow coefficient. 
 7, super shear capacity: V-type ball valve with a metal seal structure, V-shaped ball valve seat and the metal valve seat during the rotation, V-notch and the valve seat to produce a strong shear force to cut off impurities such as fiber , And has a self-cleaning function to prevent the valve stuck phenomenon.
 

Technical Parameters
Nominal diameter Clamp DN25 ~ 250mm / flange DN25 ~ 500mm
Connection method Clip / Flange
Cylinder configuration AT series, GT series, AW series, import actuator series
Cylinder form Double acting, single acting (spring return)
control method Two off (switch), adjustable, three-stage (opening degree optional)
Nominal pressure 16,25bar (Please specify when ordering for higher pressure)
Air pressure Double role: 4 ~ 8bar, single role: 5 ~ 8bar
Medium temperature W1: -40 to 180 ° C W2: -40 to 300 ° C W3: -30 to 425 ° C W4: -40 to 425 ° C
Ambient temperature Standard type: -20 ~ 80 ℃
Body material Carbon steel (C), stainless steel (P4, P6)
Sealing material Polytetrafluoroethylene (F), para-polyphenylene (PPL), metal hard seal (H), cemented carbide (Y)

Note: Other special sealing materials or special temperature can also be designed and manufactured according to customer requirements


PN (MPa) DN (mm) Size (mm)
L The folder connection Flange connection H
D D D1 D2 D6 b zd
1.6 25 102 64 115 85 5 - 14/16 4-14 233
40 114 82 145/150 110 85/84 - 16/18 4-18 280
50 124 100 160/165 125 100/99 - 16/20 4-18 362
65 145 118 180/185 145 120/188 - 18/20 4-18 377
80 165 130 195/200 160 135/132 - 20 8-18 410
100 194 155 215/220 180 155/150 - 20/22 8-18 423
125 210 185 245/250 210 185/184 - 22 8-18 436
150 229 216 280/285 240 210/211 - 24 8-23 / 8-22 653
200 243 264 335/340 295 265/266 - 26/24 12-23 / 12-22 703
250 297 328 405 355 320/319 - 30/26 12-25 / 12-26 787
300 338 373 460 410 375/370 - 30/28 12-25 / 12-26 827
2.5 25 102 64 115 85 65 - 16 4-14 233
40 114 82 145/150 110 85/84 - 18 4-18 280
50 124 100 160/165 125 100/99 - 20 4-18 362
65 145 118 160/185 145 120/118 - 22 8-18 377
80 165 130 195/200 160 135/132 - 22-24 8-18 410
100 194 155 230/235 190 160/156 - 24 8-23 / 8-22 423
125 210 185 270 220 188/184 - 28/26 8-25 / 8-26 436
150 229 216 300 250 218/211 - 30/28 8-25 / 12-26 653
200 243 264 360 310 278/274 - 34/30 12-25 / 12-26 703
250 297 328 425 370 332/330 - 36/32 12-30 787
300 338 373 485 430 390/389 - 40/34 16-30 827