Pocket Bellows Metering Pumps
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Pocket Bellows Pumps A GORMAN-RUPP COMPANY 180 Hines Ave. • Bellville, OH 44813 • PH: 419-886-3001 • FAX: 419-886-2338 • www.GRIpumps.com Pocket_Bellows_Product_Overview_0613

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. PBMP line of 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 metering pumps are constructed entirely of plastic and uses GRI’s time-proven bellows technology to provide an accurate chemically-resistant metering pump with a long life, at an economical price. The...

Pocket Bellows Metering Pump Specifications: Flow Rates — Range from 2.7 ml/min to 240 ml/min Max Discharge Pressures — Range to 6 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...

OEM Options GRI specializes in the design and manufacturing of customized pumps for the OEM market. If you are unable to find the pump for your needs, please contact us and a technical sales member with discuss with you your requirements and all available OEM options. 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. Voltages Standard voltages are 115V, 50/60 Hz or 230V, 50/60 Hz. However, the following special voltages are also available: 12 and 24VDC. Designs The standard motor is an...

.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 Pocket_Bellows_Product_Overview_0613

Pump Selection POCKET BELLOWS PUMPS Order Notes: When ordering a pocket bellows model, refer to steps 1 through 3 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. 1. Using Chart A and B, select a bellows module and a motor RPM combination whose maximum output meets or exceeds your flow requirements. Then refer to Chart D to select an appropriate model number. If T-head valve body is required, please consult...

POCKET BELLOWS PUMPS Pump Selection Guide SELECTED POCKET BELLOWS PUMPS Model Number Bellows Size Tubing Connectors 3. Using Tubing Connector Chart, select one T-code for each X-code chosen from Chart C. T-CODES T-Code For Elastomeric Tubing Size Connector Type Barbed Compression Barbed Compression Bellows Module Size Elbow Swivel, Barbed Elbow Swivel, Barbed Elbow Swivel, Barbed Elbow Swivel, Barbed www.gr pumps.com

Bellows Pump POCKET BELLOWS PUMPS Single Check Valve Check and Foot Valves Opening Pressure: 1 psi (spring loaded) 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. Materials in Contact with Solution: Body, valve seat, connectors, screen (149 Micron) — Polypropylene O-rings — EPT/EPDM,Viton®/Fluoroelastomer Spring — Hastelloy® C Options:...

POCKET BELLOWS PUMPS – ACCESSORIES Anti-Siphon Spring Kits Anti-siphon springs are available to springload poppet valves. Use of these springs produces more positive shutoff of poppet valves and permits use of the pump where there is a positive pressure on the suction side. Available for the 1", 11⁄2", and 2" models. To order, select the proper spring material and O-ring by referring to the Chemical Resistance Section. The appropriate kit can then be chosen based on the blow-off pressure (PSI) required. (Va ve extens on requ red on y on suct on port.) O-Ring (Elastomer) Material Spring Kits...

Replacement POCKET BELLOWS PUMPS 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 (ie. single, tandem). Viton®/ Fluoroelastomer www.gr pumps.com

POCKET BELLOWS PUMPS – REPLACEMENT KITS 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 been involved. However, Butyl, Hydrin, Kel-F®, Silicone and Nitrile can be supplied for chemicals requiring such materials. 1 3 Duckbill valves are required in those applications where heavy slurries or fibrous materials are being pumped. Heavy slurries should be flushed from the bellows...