D.J. Gongol and Associates, Inc. sells ARI Flow Control Accessories in Iowa and Nebraska. ARI Flow Control Accessories manufactures combination sewage air valves with the patented "Rolling Seal." The rolling seal design is a revolutionary development that costs less to install and is easier to maintain than any other combination wastewater air valve on the market.

The D-020 is ARI's flagship combination sewage air valve. In standard operation, the D-020 operates as a combination air valve for use anywhere along a pressurized wastewater main.

Due to its unique design, the D-020 is capable of outstanding performance in difficult conditions. Consider its leading advantages:

• patented "rolling seal" provides better air service
• light weight reduces installation costs and makes maintenance easier
• stainless steel body will not corrode
• corrosion-proof internal components can withstand sewage environment
• wide, cone-shaped body allows float to move and respond to turbulence
• spring-loaded rod keeps the valve from spitting sewage
• large body cushions the air and prevents slamming
• funnel-shaped lower body allows sewage (and solids) to flow out of the valve
• click here for specifications

Working pressure range:

size	working pressure	weight
2" (threaded)	3-230 psi	35 lbs.
2" (flanged)	3-150 psi	38 lbs.
3" (flanged)	3-230 psi	41 lbs.
4" (flanged)	3-230 psi	43 lbs.
6" (flanged)	3-230 psi	46 lbs.
8" (flanged)	3-230 psi	53 lbs.

Combination air valves from ARI are the most advanced sold anywhere in the world. Contact us for custom specifications and calculations by using our RFQ page, and we'll be happy to share more about them with you.

last revised 10.17.2005