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Pneumatic three eccentric butterfly valve
- sell：021-32051999
- sell：021-32050777
- fax：021-66099555
Details
- Product Introduction
- Service Promise
- Ordering Process
Pneumatic tri-eccentric butterfly valve is composed of piston pneumatic actuator and tri-eccentric metal seal valve body. Its structure is designed on the principle of three-dimensional coring. The valve seat adopts a multi-level structure compatible with hard and soft seals. It is exquisite in processing and advanced in technology. Pneumatic tri-eccentric butterfly valve can be equipped with external pneumatic valve positioner, input control signal (4-20mADC or 1-5VDC) air source can control operation, can also be equipped with stroke limit switch, solenoid valve, triple and 0.4-0.7MPa air source to achieve switching operation, and send two pairs of passive contact signals indicating the valve switch. Pneumatic tri-eccentric butterfly valve consists of valve body, butterfly plate, multi-level seat, valve stem, transmission mechanism and other major components, is a long life, energy-saving butterfly valve. Pneumatic tri-eccentric butterfly valve is widely used in metallurgy, power, petroleum, chemical, air, gas, combustible gas, water supply and drainage pipelines and other corrosive media.
Main characteristics of pneumatic three eccentric butterfly valve
1. The valve adopts three eccentric sealing structure, and the valve seat and butterfly plate wear little.
2. The sealing ring is made of stainless steel. It has the double advantages of hard metal sealing and elastic sealing. It has excellent sealing performance, corrosion resistance and long service life, no matter at low and high temperature.
3. Butterfly plate sealing surface is made of cobalt base cemented carbide, the sealing surface is wear resistant and has long service life.
4, large diameter butterfly plate adopts quilting structure, high strength, large flow area and small flow resistance.
5. Pneumatic tri-eccentric butterfly valve has two-way sealing function. It can be installed in any direction without the restriction of the flow direction of medium or the influence of space position.
6, the driving device can be installed at multiple stations (rotating 90 degrees or 180 degrees) for user convenience.
Main technical parameters of pneumatic three eccentric butterfly valve
valve body
type of body | 直通鑄造蝶閥 |
Nominal path | DN50～1000mm |
Nominal pressure | PN1.0、1.6、2.5MPa |
Flanges standard | JIS B220、JB/T79、ANSI B16.5-1981、GB/T9113、HG20594-97、HG20618-97等 |
Connection form | Flange type |
Valve cover form | One in one |
Capping type | Gland pressing type |
密封填料 | V PTFE packing and flexible graphite packing |
Valve plate form | Vertical plate type (butterfly shaped) |
Flow characteristics | Regulated (approximate equal percentage), switch type (linear) |
Actuator type | GT series, ST series, AT series and AW series single and double acting pneumatic actuators |
Gas supply pressure | 400～700KPa |
air connection | G1/4"、G1/8"、G3/8"、G1/2" |
ambient temperature | -30～+70℃ |
Form of action | Single acting actuator: B: when the gas is lost, the valve position is opened (FO); the gas opening type (K) is the valve position (FC) when the gas is lost. Double-acting actuator: air-closed type (B) - valve position retention (FL) during degassing; air-open type (K) - valve position retention (FL) during degassing |
Appendable appendage | Locator, solenoid valve, air filter pressure reducer, retaining valve, stroke switch, valve position conveyor, handwheel mechanism, etc. |
Note: for detailed actuator parameters, please go to the pneumatic actuator page for inspection.
Pneumatic three eccentric butterfly valve main parts material
1 | base | HT200、WCB、CF3、CF3M、CF8、CF8M |   法蘭式 |   對夾式 |
2 | Lower sleeve | 銅合金、304、316 | ||
3 | valve body | HT200、WCB、CF3、CF3M、CF8、CF8M | ||
4 | Seal ring | NBR丁晴橡膠、PTFE、PPL、304、316 | ||
5 | Pressure plate, butterfly plate | HT200、WCB、CF3、CF3M、CF8、CF8M | ||
6 | Fixed pin | 25、35、45 | ||
7、8 | Upper and lower valve shaft | 2Cr13、304、316、316L | ||
9 | Upper shaft sleeve | 銅合金、304、316 | ||
10 | filler | Polytetrafluoroethylene / flexible graphite | ||
11、12 | Packing gland assembly | HT200、WCB、CF3、CF3M、CF8、CF8M |
Return difference | Positioner: less than 2% of the total stroke. |
基本誤差 | Positioner: ± 2% less than full stroke. |
泄露量l/h | Comply with ANSI B16.104 IV level standard |
可調范圍R | 50：1 |
Nominal diameter DN(mm) | 50-1800 | |||
Nominal pressure | PN(MPa) | 0.6 | 1.0 | 1.6 |
Test pressure | strength test | 0.9 | 1.5 | 2.4 |
Seal test | 0.66 | 1.1 | 1.76 | |
Low pressure airtightness test | 0.6 | 0.6 | 0.6 | |
Applicable medium | Air, water, sewage, steam, gas, oil, etc. | |||
Nominal diameter DN (mm) | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 |
L | 108 | 112 | 114 | 127 | 140 | 140 | 152 | 165 | 178 | 190 | 216 | 222 | 229 | 267 | 292 | 318 | 330 | 410 |
L1 | 43 | 46 | 49 | 56 | 64 | 70 | 71 | 76 | 83 | 92 | 102 | 113 | 127 | 154 | 165 | 190 | 203 | 216 |
H | 112 | 115 | 120 | 140 | 170 | 180 | 210 | 240 | 290 | 320 | 350 | 380 | 410 | 470 | 550 | 640 | 710 | 770 |
n-φd | 4-18 | 4-18 | 8-18 | 8-18 | 8-18 | 8-22 | 12-22 | 12-26 | 12-26 | 16-26 | 16-30 | 20-30 | 20-33 | 20-36 | 24-36 | 24-39 | 28-39 | 28-42 |
H1 | Depending on the executing agency. | |||||||||||||||||
A | Depending on the torque required by the valve, the configuration models are different and the dimensions are different. | |||||||||||||||||
D | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 405 | 460 | 520 | 580 | 640 | 715 | 840 | 910 | 1025 | 1125 | 1255 |
D1 | 125 | 145 | 160 | 180 | 210 | 240 | 295 | 355 | 410 | 470 | 525 | 585 | 650 | 770 | 840 | 950 | 1050 | 1170 |
The best quality, first-class service Qigao creates more value for you!
"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:
Product Standards：
Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.
pre-sale service：
Product introduction, technical exchange, non-standard product design, troubleshooting。
Sale service：
A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.
After sales service：
1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).
2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.
3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).
4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.
1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：
a、Structure length；
b、Connection Type；
c、Nominal diameter, full diameter, reduced diameter, pipe size;
d、Operating medium and temperature, pressure range；
e、Tests, inspection standards and other requirements
2、The factory can configure various types of driving devices according to customer's specific requirements.。
3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.
4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.
Order Process：
1、Customer purchase list fax to021-33872143，Or call us 021-33872141
2、Receive customer purchase list, provide valve model selection and quotation (price list)。
3、Specific agreement: delivery date, special requirements, etc.。
download Google：
1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：
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2、The factory can configure various types of driving devices according to customer's specific requirements.。
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3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.
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4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time.， The rest of the payment will be remitted before shipment to arrange delivery in time.。
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Sale service：
Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。
For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.
After sales service：
1、"Qigao" product quality period is from the factory12Month, practice“Three packs”Service (return, replacement, warranty)。
2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.，
In order to further improve product quality。
3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。
4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。
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