Product Name: Ductile Iron DIN3352 Flanged Double Orifice Air Release Valve Dn100, Pn10, Pn16 Model NO.: Air Release Valve Certification: CE, ISO9001, GS Material: Iron Type: Compound Exhaust Valve Trademark: SOLID Transport Package: Plywood Cases Origin: Shanxi, China Product Description Ductile Iron DIN3352 flanged Double Orifice Air Valve also name air release valve,air relief valveAir valve body materials:ductile ironAir Valve Design standard:DIN3352Flange standard:DIN 2501Test standard:BS6755Work temperature:NBR≤80°C,EPDM≤120°CAir valve DN size:DN100 mmDouble 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.Dimension:mmDNHDKD1n-dbfWWeight/kg50319165125984-1919320620653191851451184-1919320621803192001601328-19193206221004132201801568-19193280391504132852402118-2319328041FAQ1. Can I get free samples?A: Yes, we can provide you the free samples, but you need to bear their own delivery costs.2. Can I request to change the form of packaging and transportation?A: Yes, We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.3. Can I request to advance the shipment?A: It should be depends on whether there is sufficient inventory in our warehouse.4. Can I have my own Logo on the product?A: Yes, you can send us your drawing and we can make your logo, but you have to bear their own the cost.5. Can you produce the products according to my own drawings?A: Yes, we can produce the products according to your drawings that will be most satisfy you.6. Which price terms could accepted?A: FOB,CIF all acceptable.