Клапан с двойным отверстием для сброса воздуха из высокопроизводительного чугуна давление DN80 PN10/16/25 от профессионального производителя воздушного клапана

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Ductile Iron flanged Double Orifice Air Release Valve DN80


 

 



Product Description  


 


Ductile Iron  flanged Double Orifice Air Release Valve DIN3352


Air valve body materials:ductile iron


Air Valve Design standard:DIN3352
Flange standard:DIN 2501
Test standard:BS6755


Work temperature:0-80°C


Air valve DN size:DN80 mm


 


Double orifice air valve that combines both large orifice & small orifice functions within one unit. The large orifice allows air to be expelled from the system during filling of a pipeline and admit air back into the system whenever sub-atmospheric pressure occurs. Air is vented from the system until water enters the valve and lifts the float against its seat, ensuring a tight seal. In the event of sub-atmospheric pressure in the system, the water level drops causing the float to fall from its seat and allow the admission of air.


 


During normal working of the main the small orifice releases the air which accumulates under pressure. With the main in operation, the float is normally against its seat. As air enters the chamber body the water level is depressed until a level is reached when the float drops from its seat, which allows air to escape. The consequent rise in water level returns the float to its seat.


 


 


 air valve2


 


 


Drawing


 


Double orifice air valves drawing


 


Double orifice air valves components


 


Air Valve Dimension and Weight


Double orifice air valves Dimensions


 


 


 

Air Valve Page 2Air Valve Page 1Air Valve Page 5Air Valve Page 4



Our Services


 Our service


 


 





FAQ


 








Q: Are you a manufacturer or a trading company?





A:We are a factory,an original manufacturer,a professional manufacturer of ductile iron valves for water supply and drainage pipeline system.Our factory is located in Luncang Town,Nan'an City,Quanzhou,Fujian province,China,welcome to visit our factory.

















Q: Do you have WRAS certificate?





A: We have WRAS certificate for raw materials NBR/EPDM and Epoxy powder

















Q: Do you ISO certificate?





A: We have ISO 9001:2015,we also have Certificate of Compliance issued by ECM,and Inspection and verification certificate issued by BV,Inspection certificate issued by SGS.

















Q: Could you engrave our Logo/Brand on valve body?





A:We can accept engraving customers' Logo/Brand on valve body,If quantity is big enough; For small quantity,it needs to pay extra cost for engraving logo and brand on valve body.If you require must engrave logo and brand on valve body.

















Q: Do you test every finished valve? Or just pick some samples and test it?





A: We test every finished valve before delivering to our customers and users,hydraulic test includes sealing test and body strength test.Sealing test:Working pressureX1.1(e.g. PN10:1.0 MpaX1.1=1.1Mpa,PN16:1.6Mpa X1.1=1.76Mpa), Body strength test:Working Pressure X1.5 (e.g. PN10:1.0 MpaX1.5=1.5Mpa,PN16:1.6Mpa X1.5=2.4Mpa

















Q:Could I ask for sample to check quality before place order?





A:We can offer sample,contact us for detailed information after confirm the product,size and quantity.

















Q:How long is your valve quality warranty?





A:Our Warranty is 12 months.

















Q:What is the delivery lead time?





A:Normally,if order quantity is not more than 5 containers,we can finish the production in 30days for gate valves;It takes longer for Y strainer and Air valve,it takes about 40days.

















Q:where is your shipment seaport?





A:Xiamen Seaport,it is about 100km from our factory.

















Q:What is the payment terms we can accept?





A:T/T,L/C,D/A,D/P,CAD etc.or are acceptable.













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