中文  |  English
TOP
+86-021-59755666
Current position:Home >> Products >> Ball valve >> Pneumatic V-type adjusting flange ball valve

Pneumatic V-type adjusting flange ball valve

Nominal diameter: DN25-DN400 
Nominal pressure: 1.6MPa-6.4Mpa 
Temperature: -28 ℃ ~ 500 ℃ 
connection: clip-on, flange 
Body Material: WCB, ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti 
Suitable medium: water, steam, Oil products, nitric acid, acetic acid


A. AT Pneumatic V-type Adjusting Flange Ball Valve Introduction
       AT Pneumatic V-type Adjusting Flange Ball Valve Pneumatic Actuator adopts the new AT/GT series pneumatic actuator. Its structure has obtained the national utility model patent, with double action and single acting type (spring reset ), the use of rack and pinion structure transmission, the performance is more safe and reliable; large-diameter valves using AW series of pneumatic actuators, fork-type transmission structure, reasonable structure, large output torque.
      AT Pneumatic V-type adjusting flange ball valve is divided into soft seal and hard seal according to the sealing performance; it is divided into regulation type and cut-off type according to the adjustment mode, and the cut-off type is divided into single action and double action type according to the action mode, and the adjustment type is double action type. The unique advantage of the single-acting type is that once the power source fails, the ball valve will automatically be in the closed or open position as required by the control system.

Two, AT pneumatic V-regulating flange ball valve working principle
       AT pneumatic V-ball valve has a special shape of the fixed V-notch ball and adjustable metal seat structure, when the valve is closed, the V-shaped incision and the valve seat to form a wedge cut Function, can prevent the jam between the ball and the valve seat caused by the phenomenon of dirt, with self-clearing function, especially suitable for media containing fiber slurry, sewage and sticky particles, with a valve positioner can achieve continuous adjustment, and With a small flow resistance, a wide range of adjustment, is a wide range of high-quality control valve.

III. Main Technical Parameters of AT Pneumatic V-type Flange Ball Valve
 1. Body 

Body form Straight through ball valve
Nominal diameter DN25~400mm
Nominal pressure PN1.6, 2.5, 4.0, 6.4 MPa
Flange standard GB, JB, HG, ANSI, JIS, etc.
Connection Type Clip type, flange type
Valve cover form Integral type (applicable temperature -45~+400°C)
Capping type Bolt compression type
Seal packing V-type polytetrafluoroethylene filler, impregnated PTFE asbestos filler, asbestos textile filler, graphite filler

2, valve trim

Spool form Ball valve with V-notch
Flow characteristics
   Approximate equal percentages (see flow characteristic diagram )

3, the executing agency

Actuator model AT/GT series pneumatic actuator
The main technical parameters Supply pressure: 400~700Kpa
gas source interface: G1/8〞, G1/4〞, G1/2〞
Ambient temperature: -25 ~ +70 °C, ambient humidity: ≤ 95
Accessories: Locator, Solenoid Valve, Air Filter Relief Valve, Position Valve, Travel Switch, Valve Positioner, Handwheel Mechanism, etc.

4、Flow characteristics (intrinsic flow characteristic curve of V adjusting ball valve) IV. Material list of main parts of AT pneumatic V type adjusting flange ball valve
 


Material \ Material Code C P R
The main parts Body WCB ZG1Cr18Ni9Ti ZG0Cr18Ni12Mo2Ti
Ball board 2Cr13 ZG1Cr18Ni9Ti ZG0Cr18Ni12Mo2Ti
Stem 2Cr13 1Cr18Ni9Ti 0Cr18Ni12Mo2Ti
Sealing ring Carbide
filler PTFE, soft graphite
Applicable conditions Suitable medium Water, steam, oil Nitric acid Acetic acid
proper temperature -28°C~500°C


V. AT Pneumatic V-type Flange Ball Valve Product Performance Index

Nominal diameter D (mm) 25 32 40 50 65 80 100 125 150 200 250  300
Rated flow coefficient Cv 32 47 78 110 170 280 410 750 1120 1850 2950 3800
Nominal pressure PN (MPa) 1.6, 2.5, 4.0, 6.4
Flow characteristics Approximate equal percentages (see typical graphs), straight line characteristics, quick opening properties
Valve plate angle (degrees)  0°~90°(adjustable)
Allowed leakage level Soft seal: Zero leakage Hard seal: ≤10--5 rated flow coefficient
Form of action  Double action / single action (spring return type)
Control type Cut-off/adjustment type
Actuator Model number AT series, GT series, AW series, ZSQ series, etc.
Air pressure Purified compressed air (nitrogen) 0.3-0.7MPa
Adjustable input signal  Current signal: 0~10mA, 4~10mA Air source signal 20~100kPa
Basic error  With locator ≤±1.5%
Backward With locator ≤ 1.5%
dead zone With positioner ≤0.6%
Adjustable ratio 250:1 300:1
Cut-off type Recall voltage  AC220V, AC110V, DC24V,
Cut off time  0.5 S 1.0 S  2.5 to 4.0 S 7.0 S


Picture.png

PN(MPa) DN(mm) Size (mm)
L Clip 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


Group address:No.342, Hesheng Yutingyuan, Xiangju Road, Qingpu District, Shanghai

Hotline:+86-21-69755076   59755666   69755027   69755026   57339828
Investment call: +86-15021631111
Fax:+86-21-69755075     E-mail:sales@sgfm.cn
Factory address:No. 1798, Wang Wei East Road Fengjing Development Zone Jinshan District Shanghai City
Copyright © Shen Gao Valve Group Co., Ltd.        www.shengao-valve.com
HuICP No. 11031085-3    No.31011802002466    Technical support:Fengsheng technology
Group address:No.342, Hesheng Yutingyuan, Xiangju Road, Qingpu District, Shanghai
Hotline:+86-21-69755076   59755666
     +86-21-69755027   69755026   57339828
Investment call: +86-15021631111
Fax:+86-21-69755075   E-mail:sales@sgfm.cn
Factory address:No. 1798, Wang Wei East Road Fengjing Development Zone Jinshan District Shanghai City
Copyright © Shen Gao Valve Group Co., Ltd.
www.shengao-valve.com
HuICP No. 11031085-3
No.31011802002466
Technical support:Fengsheng technology