Pumps by Randolph Austin Company

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	Hose Plastic Pump Packaging Water Soluble Pump Tubing Peristaltic Pumps Acid Chemical Corrosion Resistant Hose Ink Liquid Metering Peristaltic Positive Displacement Tubing Tubing: Plastic Abrasion Resistant Chemical Resistant Clear Flexible Oil Resistant Polyurethane Polyvinyl Chloride Transfer Translucent Vinyl Tubing: Rubber EPDM

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Randolph Austin Company

Manchaca, TX

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		Peristaltic pumps work by using a flexible tubing inside a raceway, which is alternately compressed by a set of rotating rollers. This flexing action insulates the materials being transferred from the moving parts of the pump. The advantages are important when transferring sterile solutions, abrasives, inks or any other fluid, which would ordinarily contaminate or destroy the internal components of a pump. Because of the action of the Randolph pump, it is an excellent choice for shear sensitive fluids and applications where fluid metering is necessary. Request Quote

		Econ II Pump Low cost Pumps The 300 (Econ II) series are low cost peristaltic pumps, which are ideal for O.E.M. and laboratory applications. Injection molded from polycarbonate resin, these pumpheads are heat, chemical and impact resistant. The resin incorporates a working temperature range of -32F to 392F. Each pump can accommodare either 3/16" ID x 3/8" OD or 1/4" ID x 7/16" OD, and with the quick release cover design, tubing changes are made much faster and cleaner. CILRAN or Silicone tubing are recommended because of their unique physical properties, however, any flexible tubing with a Shore (scale A) durometer between 35--55 can be used. The 300 pump is standard with a 2 lobe impeller yoke assembly, and also offered in a variety assemblies and drive configurations. Request Quote

		Peristaltic 400 Pump Low Cost Pumps The 400 series are low cost peristaltic pumps, which are ideal for O.E.M. and laboratory applications. Injection molded from polycarbonate resin, these pumpheads are heat, chemical and impact resistant. The resin incorporates a working temperature range of -32F to 392F. Each pump can accommodare either 3/16" ID x 3/8" OD or 1/4" ID x 7/16" OD, and with the quick release cover design, tubing changes are made much faster and cleaner. CILRAN or Silicone tubing are recommended because of their unique physical properties, however, any flexible tubing with a Shore (scale A) durometer between 35--55 can be used. The 400 comes standard with 3 impeller rollers. The 400 pump is available as pumphead only but can be driven by most fractional horsepower motors. Request Quote

		Standard • Fixed Speed Pump Small Volume Available in Small Pumphead & Pump Models: 250-130, 250-140, 250-150 The series 250 Randolph pump is offered with a choice of ac motors, each rated at a fixed rpm speed. Motors are 115/volt • 60 hz • fixed speed gear type. Units are mounted on a durable metal base. Request Quote

		Variable Flow DC Speed Control Pump Small Volume Available in small pumphead & Pump Models: 250-332, 250-342 The VARI-FLOW pump is available with electronic speed control and choice of motors. The VARI-FLOW electronic speed control permits accurate flow rate adjustment from minimum to maximum in 10 steps. The self-contained VARI-FLOW control unit is equipped with reversing switch. Units are mounted on a durable metal base. Request Quote

		Air Driven Pump Small Volume Available in Small Pumphead & Pump Model: 250-400 The air driven pump is available with an ARO air motor, regulator and pressure gauge. Requires a source of compressed air to 90 psi and 15 cfm. Flow rate is controlled by air regulator. Has no electrical components; can be used in hazardous enviroments as well as areas without electrical service. Request Quote

		Zero-Max Speed Control Pump Medium Volume Available in Medium Pumphead & Pump Models: 500-101, 610-101, 750-101 Zero-Max speed control pumps are complete with 1/4 hp • 115/volt • 60 hz • single phase • sleeve bearing • open ac motor and a ZERO-MAX speed control. The ZERO-MAX is a mechanical speed control selector coupled to the shafts of the pump and motor. The speed of the pump and flow rate can be varied from minimum to maximum in infinite steps by moving the adjustment lever. Twisting the knob on the adjustment lever locks the control in place. Units are mounted on a durable metal base. Series 750 is equipped with a 1/2 hp motor. Request Quote

		Standard • Fixed Speed Pump Medium Volume Available in Medium Pumphead & Pump Models: 500-100 • 610-100 • 750-100 The Standard, fixed speed pumps are complete with pulley • belt • 1/4 hp • 115/volt • 60 hz • single phase • sleeve bearing • opening ac motor with three wire line cord and switch. Units are mounted on a durable metal base. Series 750 model is equipped with 1/3 hp motor. Request Quote

		Explosion-Proof Fixed Speed Pump Medium Volume Available in Medium Pumphead & Pump Models: 500-200, 610-200, 750-200 The explosion-proof fixed speed pumps are complete with 1/4 hp • 115/volt • 60 hz • single phase • sleeve bearing • explosion proof motor and switch with 10 feet of flexible three wire electrical conduit and exploion proof plug. All electrical equipment is class 1 group D. Units are mounted on a durable metal base. Series 750 is equipped with 1/3 hp motor. Request Quote

		Explosion-Proof Speed Control Pump Medium Volume Availabe in Medium Pumphead & Pump Models: 500-201 • 610-201 • 750-201 Explosion proof pumps are complete with a ZERO MAX speed control, 1/4 hp • 115/volt • 60 hz single phase • sleeve bearing • explosion proof motor and explosion proof switch with 10 feet of flexible three wire electrical conduit and explosion proof plug. Units are mounted on a durable metal base. Series 750 is equipped with 1/2 hp motor. Request Quote

		Vari-Flow DC Speed Control Pump Medium Volume Available in Medium Pumphead & Pump Models: 500-342, 500-352, 500-362, 610-342, 610-352, 610-362, 750-342, 750-352, 750-362 Variable-Flow pumps meet IPC-44 specifications and are available with a variety of DC motors each spanning a specific rpm range. Units are complete with a 1/4 hp • 115V • 60 hz multi-speed reversible motor (1/2 hp on 750-362), an integrated controller capable of accepting a 4-20 Ma signal (optional), and are mounted on a durable metal base. The IPC-44 protection rating allows for intermittent contact with water without damaging the motor. Request Quote

		Air Driven Pumps Medium Volume Available in Medium Pumphead & Pump Models: 500-450, 610-400, 610-450, 750-400, 750-450, 880-400 Air Driven pumps are equipped with GAST air motor, regulator, and pressure gauge. 450 Air Driven models are equipped with a GAST air-powered gearmotor. Both models are supplied with a regulator and muffler. Operation of 500 and 610 series (all models) require compressed air to 90 psi and 15 cfm, while on the 750 and 880 series 90 psi and 30 cfm, are required. Pumps are suitable for use in hazardous areas and are variable speed by adjusting the air regulator. All units are mounted on a durable metal base. Request Quote

		880 Standard Fixed Speed Pump Large Volume Available in Large Pumphead & Pump Models: 880-110, 880-120, 880-120 The 880 Fixed Speed pump is offered with a choice of two fixed speed motors. Motors offered include a 100 rpm and 190 rpm 3/4 hp • 115/230 volt • 60 hz • single phase gearhead open type. Units are mounted on a durable cast metal base. Request Quote

		880 Vari-Flow With DC Speed control pump Large Volume Available in Large Pumphead & Pump Models: 880-300 The 880 Vari-Flow pump is offered with a 220 volt single phase geared 190 rpm motor, with controller. The VARI-FLOW control permits accurate adjustment with forward and reverse capabilities. Request Quote