June 1999ProMinent Fluid Controls1 alpha Series Metering Pumps ProMinent noelt: NEW CI noelt: NEW CI

June 1999ProMinent Fluid Controls2 alpha Series Metering Pumps The alpha pump is a receprocating diaphram-type, motor-driven metering pump for continuous operation or external on/off control. Capacities range from 0.37 to 5.68 gph (1.4 to 21.5 L/h), with maximum backpressures to 145 psig (10bar). The drive unit can be supplied in 4 gear ratios and the liquid end is available in 7 sizes.

June 1999ProMinent Fluid Controls3 alpha Pump Discharge valve Suction valve Bleed valve adjustment Liquid end Bleed valve Drive unit

June 1999ProMinent Fluid Controls4 Stroke Length Adjustment Stroke length adjustment is done by adjusting the eccentricity via a locking bar in 10% increments. Stroke length adjustment settings represent actual percentages of maximum capacity noelt: Stroke length cover pic noelt: Stroke length cover pic

June 1999ProMinent Fluid Controls5 Liquid End Options Liquid end materials include: Polypropylene (Viton or EPDM seals) Acrylic (Viton) Liquid ends are only available with a bleed valve. The liquid end features double ball valves for the suction and discharge for increase accuracy. The valves can be spring- loaded to ensure proper seating for high viscosity media.

June 1999ProMinent Fluid Controls6 Discharge Valve Bleed Valve Suction Valve Liquid End with Bleed Valve

June 1999ProMinent Fluid Controls7 VersionPSIGGPHml/strkStrk/minConnectorsSuction Lift (ft) /2 x 3/ /2 x 3/ /2 x 3/ /2 x 3/ /2 x 3/ /2 x 3/ /2 x 3/ Hz power version VersionPSIGGPHml/strkStrk/minConnectorsSuction Lift (ft) /2 x 3/ /2 x 3/ /2 x 3/ /2 x 3/ /2 x 3/ /2 x 3/ /2 x 3/ alpha Capacities 60 Hz power version