The deadband of the pneumatic float valve is approximately ¼” – ½”. It can be configured for pump-up or pump-down control when used in conjunction with a normally closed pneumatic float valve (pump down) or a normally open pneumatic float valve (pump up). OKC-2292 Narrow Band Level Control: This panel controls a liquid level within the deadband of a single pneumatic float valve. A local indicator provides status of the output pneumatic signal.ģ. The pneumatic output is active when the liquid level exceeds the high level sensor. It uses a normally closed float valve (OKC-1536-2 or OKC-1570-2) to detect the high liquid level point and a normally open float valve (OKC-2250-2) to detect the low liquid level point. OKC-3171 Wide Band Level Control “Pump Down”: This panel provides a pneumatic signal to control a drain valve or air operated pump to maintain a liquid level between two sensing points. A local indicator provides status of the output pneumatic signal.Ģ. The pneumatic output is active when the liquid level falls below the low level sensor. OKC-2291 Wide Band Level Control “Pump Up”: This panel provides a pneumatic signal to control a fill valve or air operated pump to maintain a liquid level between two sensing points.
And with valve actuation occurring only when the sensor is triggered, the energy cost of operation is reduced, making them a desirable choice for general industrial manufacturing.ġ. 1/4' Valve Mounting Bracket BB03-QTR - view attached to float valve - installation instructions. Operating pressure: 4-100 psi with a minimum 8 gpm flow rate. view dimensions - view flow rate chart. Pneumatic Float Valves can be found in industrial settings where risk of explosion is a consideration, such as in alcohol fermentation and distillation. 1' Automatic Universal Float/Fill Valve - High Temp - 175F maximum fluid temperature. In fact, this construction makes them compatible with a broad range of liquids including water, wastewater, oils, alcohol, paints and solvents, and more.ĭue to their non-electrical pneumatic operation, O’Keefe Controls Co. Pneumatic Float Valves are suitable for commercial use in a variety of industries, including Food & Beverage.
With all wetted parts being constructed of stainless steel, O’Keefe Controls Co. They can be utilized in level sensing applications with liquid temperatures up to 180° F and liquid pressures up to 200 psig, while their non-electric output valve can handle pressures from 30-85 psig and ambient temperatures up to 120° F. Available in side-mounting or top mounting configurations, they also work for both vented and non-vented conditions.