Features:
Wide range of materials Aluminium Bronze, Super Duplex, Stainless Steel, Titanium, 6MO, Hastelloy & Gunmetal.
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
Efficient low pressure sealing at 0.2bar.
25mm (1″) – 200mm (8″) sizes.
Suitable for:
Petrochemical Valves
Valve type:
- Petrochemical Air Release Valves
PART | PARTS | AVAILABLE MATERIAL |
1 | Body | Aluminium Bronze, Super Duplex, Stainless Steel, Titanium, 6MO, Hastelloy, Monel, Inconel Gunmetal |
2 | Cover | Aluminium Bronze, Super Duplex, Stainless Steel, Titanium, 6MO, Hastelloy, Monel, Inconel Gunmetal |
3* | Sheild Plate | Aluminium Bronze, Super Duplex, Stainless Steel, Titanium, 6MO, Hastelloy, Monel, Inconel Gunmetal |
*(Spun steel on 150 & 200mm) | ||
4 | Large Orifice Seat | EPDM & Viton |
5 | Large Orifice Float | ABS & Stainless Steel |
6 | Small Orifice Float | ABS & Stainless Steel |
7 | Orifice Plug | ABS & Stainless Steel |
8 | Orifice Nut | ABS & Stainless Steel |
9 | Hinge Pin | Stainless Steel |
10 | Stop Screw | Stainless Steel |
11 | Small Orifice Seal | EPDM & Viton |
12 | Chamber O-ring | EPDM & Viton |
13 | Gasket, Orifice Plug | ABS & Stainless Steel |
14 | Shield Studs & Nuts | Aluminium Bronze, Super Duplex, Stainless Steel, Titanium, 6MO, Hastelloy, Monel, Inconel Gunmetal |
15 | Cover Bolts & Nuts | Aluminium Bronze, Super Duplex, Stainless Steel, Titanium, 6MO, Hastelloy, Monel, Inconel Gunmetal |
16 | Chamber Setscrews | Aluminium Bronze, Super Duplex, Stainless Steel, Titanium, 6MO, Hastelloy, Monel, Inconel Gunmetal |
17 | Chamber | Aluminium Bronze, Super Duplex, Stainless Steel, Titanium, 6MO, Hastelloy, Monel, Inconel Gunmetal |
Over 30 years of experience in the design and manufacture of engineered valves and ancillary products.Over 30 years of experience in the design and manufacture of engineered valves and ancillary products.Over 30 years of experience in the design and manufacture of engineered valves and ancillary products.Over 30 years of experience in the design and manufacture of engineered valves and ancillary products.Over 30 years of experience in the design and manufacture of engineered valves and ancillary products.Over 30 years of experience in the design and manufacture of engineered valves and ancillary products.
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