3 шт. пневматический вакуумный шаровой кран из нержавеющей
3 шт. пневматический вакуумный шаровой кран из нержавеющей
3 шт. пневматический вакуумный шаровой кран из нержавеющей
3 шт. пневматический вакуумный шаровой кран из нержавеющей

3 шт. пневматический вакуумный шаровой кран из нержавеющей


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Our Advantages


 

 




Wenzhou COVNA aims to provide our customers the best quality products with the most competitive pricing, on-time delivery and full warranty service.


 


• 19 YEARS manufacturer of actuated valves, MASS CUSTOMIZATION acceptable.


 


• 3 production base, large stock, SHORT LEAD TIME, same day shipping.




• German imported manufacturing facilities, 100% Q.C passed before shipping, quality assured. Industrial standard 1 YEAR (12 months) warranty.


 


• ISO 9001 certificated, with extra certifications include CE, TUV, RoHS, SGS, BV, explosion & fire safe.


 


• OEM / ODM  service available.




 


 





 





 


 



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BodyValve components
Size rangeDN15~DN400Sealing materialPTFE:-30℃~180℃
Body materialStainless steelCore materialStainless steel
End connectionFlangeStem materialStainless steel
Operating pressure1.6, 2.5, 4.0, 6.4MPaApplicable mediaWater, oil, Gas, Liquid, steam, powder, anti-corrosive base
StructureFloating ball core




COVNA pneumatic flange ball valve, 2-way port configuration, default GB standard, ANSI, JIS, DIN or API 6D is available, double-acting standard control mode, single-acting is available, 304 or 316 stainless steel body construction, 2.5 to 8 bar input air pressure, minimum 1/2 inch flanged connection, default PTFE seat, resistant to almost all fluids. Suitable for higher operating pressures and temperatures.


 



Dimension


 

 


 


 


vacuum-ball-valve.png


 


Click to enlarge


 





With Electro-Pneumatic Positioner

With Manual Operation Mechanism

With F.R.L, Limit Switch and Handwheel

With Filter, Limit Switch and Pneumatic Solenoid Valve




 


 



ISO 5211 Mounting Pad


 

 


 


 


750-224


 


 



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Actuator Output Torque Data


 

 


 


 



 




























































































 
[Double Acting] Input Air Pressure (Bar)


Model


2


2.5


3


4


4.5


5


AT52D


8.0


10.0


12.0


16.0


18.0


20.0


AT63D


14.6


18.2


21.9


29.2


32.8


36.5


AT83D



31.4



39.2


47.0


62.7


70.5


78.4


AT105D


66.1


82.7


99.2


132.2


148.8


165.3


AT130D


100.3


125.4


150.5


200.6


225.7


250.8


AT140D


171.0


213.8


256.5


342.0


384.8


427.5


AT160D


266.0


332.5


399.0


532.0


598.5


665.0


AT190D


425.6


532.0


638.4


851.2


957.6


1064.0




 


For Single Acting Actuator Output Torque Data, please contact us! Our professional team will get back to you within 3 hours!


 


 



Accessories


 

 





 


 



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Working Principle


 

 


 


 


 






CCW


[Double Acting] Air to Port A forces the pistons outwards, causing the pinion to turn counterclockwise while the air is being exhausted from Port B.


 


Air to Port B forces the pistons inwards, causing the pinion to turn clockwise while the air is being exhausted from Port A.




CW


Air to Port A forces the pistons outwards, causing the pinion to turn clockwise while the air is being exhausted from Port B.


Air to Port B forces the pistons inwards, causing the pinion to turn counterclockwise while the air is being exhausted from Port A.





 


 



About Wenzhou COVNA


 

 


 


 







 



Wenzhou COVNA Valve Co., Ltd.


Wenzhou COVNA is one of the top manufacturers of quarter turn actuators and actuated valve products in China with 19 years experience. All COVNA products are designed and manufactured by experienced engineers to provide safe and reliable valves, actuators and solutions. COVNA aims to provide our customers the best quality products with the most competitive pricing, on-time delivery and full warranty service.






 


 



Our Certificates


 

 


 


 



 


 



Global Trusted


 

 


 


 



 


 



Packing Details


 

 


 


 



 


Packing details: each valve will be packed with foam in carton or in pallet to keep it safe during shipment.


Shipping method: we offer a variety of fast shipping methods, including DHL, Fedex, TNT, UPS, EMS, Airway, etc.


Delivery time: within 15 working days after payment due, stocking items same-day shipping.


 


 



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FAQs


 

 


 





1. When can I get the price?


We usually quote within 3 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.




2. How can I get a sample to check your quality?


After price confirmation, you can require for samples to check our quality. If you just need a blank sample to check the design and paper quality, we will provide you sample for free, as long as you afford the express freight.




3. How long can I expect to get the sample?


After you pay the sample charge and send us confirmed files, the samples will be ready for delivery in 3-7 days. The samples will be sent to you via express and arrive in 3-5 workdays. You can use your own express account or prepay us if you do not have an account.




4. How long does the whole procedure being worked out?


After you place a order,the production handling time is about 45-60 days. We need 15 days to prepare all the stuff then 30 days for manufacturing.




5. What about the transportation and delivery date?


Normally we use shipment to transprot the goods.It is about 25-40 days. It also denpends on which coutry and port you are. It could be shorter if you need to send the goods like Asian.


 


If there are some emergencies we can send the goods via air express, as long as you afford the traffic expense.





 



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