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Pneumatic sealing butterfly valve

Products > Butterfly valve > Pneumatic sealing butterfly valve

Pneumatic sealing butterfly valve

Model: D673H / F
Nominal diameter: DN50 ~ 800mm
Applicable pressure: 1.3 × 10-5Pa ~ 3 × 105Pa
Operating temperature: Viton -25 ℃ ~ +150 ℃
Body material: carbon steel (C), stainless steel , P6)
Connection: wafer
Design basis: GB standard \ the ANSI standard
Design criteria: GB / 12238, API609
Length of the structure: GB12221, ANSI B16.10 ANSI, B16.5 (2-24 ")
Size: GB / 9113, JB / T79 ANSI B16.47 (26-32 ")
Testing and Testing: JB / T9092, API598
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First, the pneumatic clamping butterfly valve seal Product Overview
 Precision   J-shaped elastic ring and three eccentric multi-level metal hard seal   structure, is widely used in the medium temperature ≤ 425 ℃ metallurgy,   electricity, petrochemicals, and water supply and drainage and Municipal   construction and other industrial pipelines, for regulating the flow   and breaking the fluid to use. The valve adopts three eccentric   structure, the valve seat and the disc sealing surface are made of   different hardness and stainless steel, has good corrosion resistance,   long service life, the valve has a two-way sealing function, the product   complies with national GB / T13927-92 valve pressure Test Standard. 
 
 Second, the pneumatic clamp butterfly valve features
 1, the valve adopts three eccentric seal structure, the valve seat and   disc almost no wear, with the more the more tight sealing function. 
 2, the ring made of stainless steel, with the advantages of both metal   seal and flexible seal, both in the case of low temperature and high   temperature, have excellent sealing performance, with corrosion   resistance, long service life and so on. 
 3, the butterfly plate sealing surface using welding cobalt-based hard   alloy, sealing surface wear-resistant, long service life. 
 4, Large-format butterfly plate frame structure, high strength, large flow area, small flow resistance. 
 5, the valve has a two-way sealing function, the installation is not   subject to restrictions on the flow of media, but also the location of   space, can be installed in any direction. 
 6, the drive can be multi-station (rotated 90 ° or 180 °) installation, user-friendly.



 Third, the pneumatic clamp-type seal butterfly valve principle
 
Electromagnetic valve to control the pneumatic actuator, the valve stem to achieve the purpose of turning 90 °.

Cylinder with 1/4 rotary cylinder, adjustable angle 1 ° ~ 5 °.

 

Fourth, the main technical parameters

Technical Parameters
Nominal diameterDN50 ~ 800mm
Connection methodClip-on
Cylinder matchingAT series, GT series, AW series, import actuator series
Cylinder formDouble acting, single acting (spring return)
control methodSwitch, adjustable, three-stage (opening optional)
Nominal pressure16,25,40bar (Please specify when ordering for higher pressure)
Air pressureDouble role: 4 ~ 8bar, single role: 5 ~ 8bar
Medium temperatureW1: -40 to 180 ° C, W3: -30 to 425 ° C, and W4: -40 to 425 ° C
Ambient temperatureStandard type: -20 ~ 80 ℃
Body materialCarbon steel (C), stainless steel (P4, P6)
Sealing materialPolytetrafluoroethylene (F), Metal Hard Seal (H), Carbide (Y)

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

Accessories selection
The electromagnetic valveDouble-acting election two five-way, two-way single five-way, single electric double-control when ordering
Air treatment tripletRegulated gas supply, filtration, cylinder lubrication
Limit switchRemote feedback switch signal
Hand-operated institutionsCan be manually opened and closed valves
LocatorInput analog signal (4-20mA or 0-10V), adjust the valve opening
RemarksThe   above accessories are not standard accessories, such as the need to   configure the order time, solenoid valves and limit switches are not   explosion-proof and explosion-proof, if explosion-proof also indicate   the level of explosion-proof


 Fifth, the pneumatic clamp on the main parts of the butterfly valve seal material

Main parts material table
Serial numberPart NameMaterialSerial numberPart NameMaterial
CP4P6CP4P6
1Hexagon screw1Gr18Ni9Ti1Gr18Ni9Ti1Cr18Ni12Mo2Ti11BodyWCBZG1Cr18Ni12Mo2TiZG1Cr18Ni12Mo2Ti
2capWCB1Gr18Ni9TiZG1Cr18Ni12Mo2Ti12Valve stem1Cr131Gr18Ni9Ti1Cr18Ni12Mo2Ti
3Gasket1Gr18Ni9Ti1Gr18Ni9Ti1Cr18Ni12Mo2Ti13Connect the bracketWCBWCBWCB
4SeatPTFE. Stainless steel + flexible graphite14key454545
5Gasket1Gr18Ni9Ti1Gr18Ni9Ti1Cr18Ni12Mo2Ti15bushingPTFE composite bearings
6Butterfly plateWCBZG1Cr18Ni12Mo2TiZG1Cr18Ni12Mo2Ti16fillerPTFE. Flexible graphite
7Cylindrical pin451Gr18Ni9Ti1Cr18Ni12Mo2Ti17GlandWCBZG1Cr18Ni9TiZG1Cr18Ni12Mo2Ti
8lower lidWCBZG1Cr18Ni12Mo2TiZG1Cr18Ni12Mo2Ti18Pneumatic deviceExtruded aluminum alloy
9GasketPTFE. Stainless steel + flexible graphite19Location indicatorplastic
10bushingPTFE composite bearings

Note:   Other parts and seals of the material can also be based on the actual   conditions or customer requirements design selection 
 
 Six , pneumatic clamp-type seal butterfly valve main dimensions

Main dimensions - PN16 (16bar)
Nominal diameter [DN]DimensionsConnection sizeActuator model
LL1L2HDND
5043159/21183/95277/2051254-18ATD63 / ATE75
6546211/24895/107287/3151454-18ATD75 / ATE88
8046248/269107/123365/3751608-18ATD88 / ATE100
10052269/315123/141420/4361808-18ATD100 / ATE115
12556315/345141/152436/4622108-18ATD115 / ATE125
15056345/409152/172466/5432408-22ATD125 / ATE145
20060409/438172/187593/66529512-22ATD145 / ATE160
25068436/559187/215682/75235512-26ATD160 / ATE190
30078550/600215/240725/77241012-26ATD190 / ATE210
35078600/633240/262832/88047016-26ATD210 / ATE240
400102633/730262/330862/96852516-30ATD240 / ATE270
450114633262945/100558520-30ATD240 / ATE25
5001277303001058/106065020-33ATD270 / ATE25
6001541320/1970440/4801108/119577020-36ATD25 / ATE28
7001651430/2700480/5601170/125584024-36ATD28 / ATE35
8001901430/2700480/5601325/136595024-39ATD25 / ATE35

Note:   According to different valve torque, different air pressure and   different actual conditions, select the appropriate actuator size also   changes its relevant

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