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Pneumatic V-type ball valve

Products > Ball valve > Pneumatic V-type ball valve

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
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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 diameterClamp DN25 ~ 250mm / flange DN25 ~ 500mm
Connection methodClip / Flange
Cylinder configurationAT series, GT series, AW series, import actuator series
Cylinder formDouble acting, single acting (spring return)
control methodTwo off (switch), adjustable, three-stage (opening degree optional)
Nominal pressure16,25bar (Please specify when ordering for higher pressure)
Air pressureDouble role: 4 ~ 8bar, single role: 5 ~ 8bar
Medium temperatureW1: -40 to 180 ° C W2: -40 to 300 ° C W3: -30 to 425 ° C W4: -40 to 425 ° C
Ambient temperatureStandard type: -20 ~ 80 ℃
Body materialCarbon steel (C), stainless steel (P4, P6)
Sealing materialPolytetrafluoroethylene (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)
LThe folder connectionFlange connectionH
DDD1D2D6bzd
1.62510264115855-14/164-14233
4011482145/15011085/84-16/184-18280
50124100160/165125100/99-16/204-18362
65145118180/185145120/188-18/204-18377
80165130195/200160135/132-208-18410
100194155215/220180155/150-20/228-18423
125210185245/250210185/184-228-18436
150229216280/285240210/211-248-23 / 8-22653
200243264335/340295265/266-26/2412-23 / 12-22703
250297328405355320/319-30/2612-25 / 12-26787
300338373460410375/370-30/2812-25 / 12-26827
2.525102641158565-164-14233
4011482145/15011085/84-184-18280
50124100160/165125100/99-204-18362
65145118160/185145120/118-228-18377
80165130195/200160135/132-22-248-18410
100194155230/235190160/156-248-23 / 8-22423
125210185270220188/184-28/268-25 / 8-26436
150229216300250218/211-30/288-25 / 12-26653
200243264360310278/274-34/3012-25 / 12-26703
250297328425370332/330-36/3212-30787
300338373485430390/389-40/3416-30827


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