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Products Wastewater Valves and fittings Air relief valve for sewage

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Air relief valve for sewage

Product overview

Problems caused by the presence of air in networks may be solved by fitting suitable equipment.
BELGICAST can supply a wide range of devices with the highest quality to allow you to prevent faults in your system and optimize its performance. You can choose the most suitable products to regulate the entry and escape of air from networks and protect them from problems such as:
· Head losses
· Pressure variations
· Water hammer
· Pipe breakage

 DOUBLE ORIFICE AIR VALVE for sewage network
FEATURES
· Strongly built, with body and cover of ductile cast iron.
· Fully protected against corrosion by internal and external epoxy coating (RAL 5015).
· Fitted with connection and valve for cleaning.
· Large through channel section.
· Mechanical elements kept away from contact with water.
· Special design avoids stagnated materials or deposits of foreign bodies.
· Weight: 44 Kg.
· Maximum permissible flow Q=200 l/s.
· Maximum permissible pressure: 4 bar (test pressure 25 bar).
• Flange connection ND-100, NP-10.
OPERATION
The BELGICAST BS-05-60 air relief valve for sewage performs three
operations essential to proper functioning of the system.
· It discharges air from piping during filling (Q max. 200 l/s).
· It lets air enter during pipe drainage operations.
• It bleeds air under pressure during normal system operation.

SINGLE ORIFICE AIR RELIEF VALVE for sewage network
Flange connection ND-100, NP-10
OPERATION
The BELGICAST BS-05-61 air relief valve allows the escape of air which builds up under pressure while the system is working. Ample diameter of the bleed hole.

ANTI-WATER HAMMER AIR RELIEF VALVE for sewage network
Flange connection ND-100, NP-10
OPERATION
The BELGICAST BS-05-62 anti-water hammer air relief valve for sewage allows a significant quantity of air to enter (max. 90 l/s. at -2 M.W.C.), while discharge is limited to 1 l/s. This allows the air pocket in the piping to damp the return wave from the water hammer. The device is recommended for pipes up to DN-400 and lengths greater than 200 metres.

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