Pocket Bellows Pumps
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Pocket Bellows Pumps Pocket Bellows models are ideal for low flow, low pressure metering applications. The pump is constructed entirely of plastic and utilizes GRI’s time-proven bellows technology to provide an accurate chemically-resistant metering pump with a long life, at an economical price. Features: • Average repeatability from stroke-to-stroke, ± 0.75% • Dry run capability • Self-priming • No dynamic seals • Superior corrosion resistance 180 Hines Ave. • Bellville, OH 44813 • PH: 419-886-3001 • FAX: 419-886-2338 • www.GRIpumps.com GRI Pocket Bellows Pum

Pocket Bellows Metering Pumps Overview Pocket Bellows Metering Pumps are the most economical metering pump on the market while maintaining the high quality standards of a Gorman-Rupp Industries product. Pocket Bellows Metering Pumps are ideal for low flow, low pressure metering applications where a fixed flow rate is required. Like the Mini Bellows Metering Pump line, the Pocket Bellows are constructed entirely of plastic and use GRI’s time-proven bellows technology to provide an accurate chemically-resistant metering pump with a long life, at an economical price. The only difference is the...

Pocket Bellows Metering Pump Specifications: Flow Rates - Range from 2.7 ml/min to 240 ml/min Max Discharge Pressures - Range to 5 psi. Max Fluid Temperature - To 140°F (60°C) Note: Reduce pressure rating by 50% for fluid temperatures over 120°F (49°C). Viscosity/Slurries - Maximum fluid viscosity is 5,000 centistokes. Poppet valves can handle fine slurries. Duckbill valves are recommended for heavy slurries or fibrous materials. Heavy slurries should be flushed from the pump before shutdown. MAXIMUM DRY AND WET PRIMING SPECIFICATIONS • Feet (Meters) Bellows Sizes Dry Prime 50% of Full...

Pump Selection Guide Pocket Bellows Order Notes: When ordering a Pocket Bellows model, refer to steps 1 through 3 (bottome of page) and follow the example provided. Example: The model number and codes for a pump with 1” bellows module, with EPT/EPDM elastomers and 3⁄8” barbed connector, driven by a 115V, 50/60 Hz, 8 RPM motor would be: 16503-050 X-112 T-003. CHART D SELECTED POCKET BELLOWS PUMPS Full Stroke Displacement (ml) Viton®/ Fluoroelastomer CHART C O-RING AND POPPET/DUCKBILL VALVE OPTIONS 3 TYPICAL FLOW Typical Flow (ml/min) Bellows Size BELLOWS MODULE OUTPUT Bellows Size Model...

Pump Selection Guide Pocket Bellows T-CODES For Elastomeric Tubing Size Bellows Module Size Connector Type Barbed Compression Barbed Compression Barbed Compression Barbed Compression Elbow Swivel, Barbed Elbow Swivel, Barbed Elbow Swivel, Barbed Elbow Swivel, Barbed Elbow Swivel, Barbed TUBING CONNECTORS

Pocket Bellows GRI specializes in the adaptation of standard models to meet the ever-changing needs of the Original Equipment Market. Contact us if one of our standard models does not meet your specific requirements. Motors • Speeds Standard synchronous motor speeds are 8, 15 and 24 RPM at 60 Hz. Custom speeds available in shaded pole and DC motors, please consult factory. Standard voltages are 115V, 50/60 Hz or 230V, 50/60 Hz. However, the following special voltages are also available: 12 and 24VDC. The standard motor is an AC voltage synchronous motor. Depending on the type of pocket...

Accessories Pocket Bellows Check and Foot Valves Single Check Valves Check and foot valves are used to maintain a pump’s prime or to prevent backflow through a pump in applications with long suction lengths. Check valves can be positioned in-line on the suction or discharge side of the pump; foot valves on the suction side only. To order, refer to the chart on this page. Dual Check Valves Foot Valves O-Ring (Elastomer) Material Spring Single Check Valve Dual Check Valve Opening Pressure: 1 psi (spring loaded) Opening Pressure: Monel (two poppets .2 psi 02501-112 Materials in Contact with...

Replacement Kits Pocket Bellows Bellows Module Kits Proper selection of bellows module and poppet valve replacement kits depends on the X-code of the model number and not on the pump type. Bellows Size Viton®/ Fluoroelastomer Poppet Valve and O-Ring Kits Duckbill Valve and O-Ring Kits The standard elastomers for the poppet valves and O-rings are EPT/EPDM and Viton®/Fluoroelastomer. These elastomers have historically been able to handle the vast majority of the applications in which we’ve Materials ⁄ " Bellows 1" Bellows 1 ⁄ " Bellows 2" Bellows been involved. However, 02500-604 02500-604...

Typical Dimensions Pocket Bellows Weight of single pocket bellows pump: 0.55 lb. .208 (5.27) WIDE SLOT – (2) PLACES ELBOW CONNECTORS .25 (6.35) I.D.-.38 (9.65) O.D. (SHOWN AS EXAMPLE ONLY) BROWN LEAD WHITE LEAD Dimensions in Inches (Dimensions in Millimeters) 180 Hines Ave. • Bellville, OH 44813 • PH: 419-886-3001 • FAX: 419-886-2338 • www.GRIpumps.com GRI Pocket Bellows Pumps Overview 0521

Exploded View Pocket Bellows SEE TUBING CONNECTORS CHART SEE VALVE KITS CHART SEE BELLOWS MODULE REPLACEMENT KIT CHART SEE BELLOWS MODULE REPLACEMENT KIT CHART SEE TUBING CONNECTORS CHART SEE VALVE KITS CHART SEE TUBING CONNECTORS CHART SEE VALVE KITS CHART SEE BELLOWS MODULE REPLACEMENT KIT CHART GRI Pocket Bellows Pumps Overview 0521 TO ORDER REPLACEMENT PUMPS OR KITS, CALL YOUR LOCAL GRI DISTRIBUTOR FORM NO. 86298-0521 180 Hines Ave. • Bellville, OH 44813 • PH: 419-886-3001 • FAX: 419-886-2338 • www.GRIpump