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Pneumatic V-Type Adjustment Flange Ball Valve

Products > Pneumatic valve series > Pneumatic V-Type Adjustment Flange Ball Valve

Pneumatic V-Type Adjustment 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, Nitric Acid, Acetic Acid
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First, AT Pneumatic V-Type Adjustment Flange Ball Valve Introduction
 AT pneumatic V-type adjustment flange ball valve pneumatic actuator with a new AT / GT series of pneumatic actuators, the structure of the national utility model patents, double and single acting (spring reset ), The use of rack and pinion structure transmission, more secure and reliable performance; large diameter valve with AW series of pneumatic actuators, fork fork structure structure, reasonable structure, the output torque. 
 AT pneumatic V-type flange ball valve according to the sealing performance is divided into soft seal and hard seal; according to the adjustment method is divided into adjustable and cut off type, cut off by the role of single-acting and double-acting, adjustable type for the double acting. The unique advantage of single acting 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. 
 
 Second, AT Pneumatic V-Type Adjustment Flange Ball Valve Works
 AT aerodynamic V-type ball valve with a special shape of the fixed V-shaped incision ball and adjustable metal seat structure, when the valve is closed, V-shaped incision and the valve seat to form wedge shear Function, can prevent the ball and the seat between the dirt generated by the phenomenon of stuck, with self-cleaning function, especially for fiber-containing pulp, sewage and sticky particles of the media, coupled with the valve positioner can be continuously adjusted, and With a small flow resistance, wide adjustment range, is a wide range of high-quality control valve. 
 
 Third, AT pneumatic V-type Adjustment Flange Ball Valve Main Technical Parameters
 1, the Valve Body 

Body FormThrough Casting Ball Valve
Nominal DiameterDN25 ~ 400mm
Nominal PressurePN1.6, 2.5, 4.0, 6.4 MPa
Flange StandardGB, JB, HG, ANSI, JIS and so on
Connection FormWafer Type, Flange Type
Bonnet FormIntegral (For Temperature -45 ~ + 400 ℃)
Gland TypeBolt Compression
Sealed PackingV-type PTFE Packing, Impregnated with polytetrafluoroethylene asbestos packing, asbestos textile filler, graphite filler

2, Trim

Spool FormSpherical Spool With V-cut
Flow Characteristics
   Approximate Percentage (see flow chart )

3, The Implementing Agency

Actuator TypeAT / GT Series Pneumatic Actuators
The Main Technical ParametersSupply Pressure: 400 ~ 700Kpa 
       Air Supply Interface: G1 / 8 ", G1 / 4", G1 / 2 "
Ambient Temperature: -25 ~ +70 ℃, Ambient Humidity: ≤ 95
Accessories: locator, solenoid valve, air filter pressure relief valve, security valve, stroke switch, valve position transmitter, hand wheel institutions, etc.

4, The Flow Characteristics (V adjust the ball valve of the inherent flow characteristics of the curve) 

Fourth, AT Pneumatic V-Type Adjustment Flange Ball Valve Main Parts Material Table


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Material \ Material CodeCPR
The Main PartsBodyWCBZG1Cr18Ni9TiZG0Cr18Ni12Mo2Ti
Ball Plate2Cr13ZG1Cr18Ni9TiZG0Cr18Ni12Mo2Ti
Stem2Cr131Cr18Ni9Ti0Cr18Ni12Mo2Ti
Sealing RingCarbide
FillerTeflon, Soft Graphite
Applicable ConditionsApplicable MediaWater, Steam, OilNitric acidAcetic Acid
Proper Temperature-28 ° C to 500 ° C


 
5, AT Pneumatic V-Type Flange Ball Valve Product Performance Indicators

Nominal Diameter (mm)253240506580100125150200250 300
Rated Flow Coefficient Cv3247781101702804107501120185029503800
Nominal Pressure PN (MPa)1.6, 2.5, 4.0, 6.4
Flow CharacteristicsApproximate percentage (see typical curve), straight line characteristics, quick opening
Valve Plate Angle (Degrees) 0 ° ~ 90 ° (adjustable)
Allow The Leak LevelSoft Seal: Zero Leak Hard Seal: ≤10--5 Rated flow coefficient
Form Of Action Double Acting / Single acting (spring return type)
Control TypeCut off / Adjust type
ActuatorModelAT series, GT series, AW series, ZSQ series and so on
Air PressurePurify Compressed air (nitrogen) 0.3-0.7MPa
AdjustableInput Signal Current Signal: 0 ~ 10mA, 4 ~ 10mA gas source signal 20 ~ 100kPa
Basic Error With Locator ≤ ± 1.5%
BacklashWith Locator ≤ 1.5%
Dead ZoneWith Locator ≤ 0.6%
Adjustable Ratio250: 1300: 1
Cut off TypeReturn Voltage AC220V, AC110V, DC24V,
Cut off Time 0.5 S1.0 S 2.5 ~ 4.0 S7.0 S


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PN (MPa)DN (mm)Size (mm)
LFolder  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-twenty two8-18436
150229216280/285240210/211-twenty four8-23 / 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-twenty two8-18377
80165130195/200160135/132-22-248-18410
100194155230/235190160/156-twenty four8-23 / 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