Ductile Iron DIN3352 flanged Double Orifice Automatic Air Release Valve DN65

Features:

Air valve body materials:ductile iron

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

Working Pressure:PN10,PN16,PN25

Work temperature:NBR≤80°C,EPDM≤120°C

Air valve DN size:DN65 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.

Main Components and their materials:

FAQ

Q1: What is your terms of packing?

A: Gengerally, we pack our goods plywood case, we can pack the goods as your requirement

Q2: What is your terms of payment?

A:  30%T/T as deposit and 70% before delivery, we will show you the photos of the proucts and package before you paying the balance payment.

Q3 What is your terms of delivery?

A: EXW,FOB, CFR,CIF

Q4. How about your delivery time?

A: Generally, it will takes 30-45days after receiving your advance payment, the specific delivery time depens on the terms and the quantity of your order.

Q5, Can you produce according to the samples?

A: Yes, we can produce by your samples or technical drawing, we can build the molds and fixtures.

Q6, What is your sample policy?

A: We can supply the sample if we have ready partns in stock. but the customers have to pay the sample cost and the courier cost.

Q7, Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.