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Bellows Metering Pumps

Bellows Metering Pumps
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Bellows Metering Pumps

Product catalog summary
Overview: This document provides a detailed overview of Standard Bellows Metering Pumps, which function on a positive displacement principle. These pumps are suitable for both corrosive and non-corrosive fluids, maintaining consistent discharge pressure across the flow range. They offer an accuracy of ±0.5% from stroke to stroke when set between 50% to 100% of full stroke. Typical applications include film processors, silver recovery systems, and water treatment systems.
Pump Operation: The pumps utilize a lever pivot crank mechanism to apply a squeezing and relaxing force on a bellows module, facilitating fluid movement. Optimal operation requires a minimum suction lift of 6 inches and a discharge head of at least 6 inches.
Flow Rates and Adjustments: Flow rates are influenced by the bellows diameter, gear motor speed, and stroke length. Adjustments can be made down to 10% of full stroke, except for 1/2-inch models, which are limited to 20%. Two adjustment mechanisms are available: Standard Crank and BEL O JUST®.
Specifications: The pumps offer flow rates ranging from 3.9 ml/min to 3000 ml/min, with maximum discharge pressures from 5 to 50 psi. The maximum fluid temperature is 140°F (60°C), with a reduced pressure rating for temperatures exceeding 120°F (49°C). They can handle viscosities up to 5,000 centistokes.
Materials and Selection: Materials in contact with solutions include polypropylene connectors and EPT/EPDM or Viton®/Fluoroelastomer O-rings. Pump selection should consider pressure requirements and flow needs, with heavy-duty models recommended for continuous duty service.
Features: The pumps provide average repeatability of ±0.75%, dry run capability, self-priming, and no dynamic seals. They are corrosion-resistant, economical, and allow for simple flow adjustments.
OEM Options: Customization is available for OEM markets, offering options for different motor voltages and speeds, as well as various valve and pump cover configurations.
Accessories and Replacement Kits: The document outlines various accessories, including check and foot valves, anti-siphon spring kits, and replacement kits for bellows modules and crank assemblies.
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Catalog excerpts

Bellows Metering Pumps-1

Standard Bellows Pumps A GORMAN-RUPP COMPANY 180 Hines Ave. • Bellville, OH 44813 • PH: 419-886-3001 • FAX: 419-886-2338 • www.GRIpumps.com Standard_Bellows_Metering_Product_Overview_0613

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Bellows Metering Pumps-2

Standard Bellows Metering Pumps Overview Bellows metering pumps operate on a positive displacement principle. Pumps are designed to displace both corrosive and noncorrosive fluids. Accurate to ± 0.5% from stroke to stroke, when pump is set 50% to 100% of full stroke. Discharge pressure is maintained over the entire flow range of the pump. Poppet valves are used to prevent back flow; and springs are available to provide a positive shutoff, preventing siphoning through the pump in applications where a positive suction head exists. Typical applications include film and x-ray processors, silver recovery...

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Bellows Metering Pumps-3

Bellows Metering Pump Specifications: Flow Rates — Range from 3.9 ml/min to 3000 ml/min, depending on pump configuration, gearmotor speed and stroke length. Max Discharge Pressures — Range from 5 to 50 psi depending on bellows size. Max Fluid Temperature — To 140°F (60°C)Note: Reduce pressure rating by 50% for fluid temperatures over 120°F (49°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....

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Bellows Metering Pumps-4

• Superior corrosion resistance • Simple flow adjustment 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 Standard Model Voltages Available: • 115V AC, 50/60 Hz • 230V AC, 50/60 Hz OEM Optional Model Voltages Available: • 12, 24V DC Speeds Standard motor speeds are 39, 60, 90 and 165 RPM at 60 Hz. Gearmotors can be supplied in virtually any speed up to165 RPM. Voltages...

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Bellows Metering Pumps-5

Part Selection BELLOWS METERING PUMPS Tubing Connectors Order Notes: One “X” and one “T” code for each bellows module is required. (When ordering tandem pumps, the largest bellows module is nearest the gearmotor.) Example: 13726-014 (11⁄2" x 11⁄2" two tandem standard model) with EPT/EPDM poppet valves and O-rings and 3⁄8" elbow connectors would be ordered as a 13726-014 X-112 T-008 X-112 T-008. T-CODES T-Code For Elastomeric Tubing Size Connector Type Barbed Compression Barbed Compression Bellows Module Size ⁄2" ⁄2" Barbed Compression Barbed Compression Elbow Swivel, Barbed Elbow Swivel, Barbed...

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Bellows Metering Pumps-6

BELLOWS METERING PUMPS – PART SELECTION Poppet Valves and O-Rings Duckbill Valves and O-Rings (Valve extension required only on suction port.) *EPT/EPDM Hydrin *EPT/EPDM Hydrin *Viton®/ Fluoroelastomer **Viton®/ Fluoroelastomer * ndicates stocked elastomer **Cost added or material * ndicates stocked elastomer **Cost added or material 180 Hines Ave. • Bellville, OH 44813 • PH: 419-886-3001 • FAX: 419-886-2338 • www.GRIpumps.com ©2013 Gorman-Rupp Industr es www.gr pumps.com Page 6

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Bellows Metering Pumps-7

Bellows Pump BELLOWS METERING 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:...

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Bellows Metering Pumps-8

BELLOWS METERING 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 21⁄2" 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 Ki...

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Bellows Metering Pumps-9

Replacement BELLOWS METERING PUMPS Notes: (1) Bellows module kits include connecting rod assembly, bellows module, displacement cup, screws and O-rings. (2) Standard crank kit includes lock nut, flat washer and crank assembly. (3) BEL O JUST® crank kit includes rod bushing, bearing, bearing bushing, drive arm, set screw, bushing, crank, control arm and retaining ring. (4) Motor kit includes motor, fan, mounting screws, felt pad and ground screw. To order, refer to Replacement Kit charts on following pages. ©2010 Gorman-Rupp Industries

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Bellows Metering Pumps-10

SINGLE BELLOWS METERING PUMPS - REPLACEMENT KITS Bellows Module Replacement Kits Crank Assembly Replacement Kits vIIUII /riuuru

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Bellows Metering Pumps-11

SINGLE BELLOWS METERING PUMPS – REPLACEMENT KITS Model Number Crank Assembly Replacement Kits Bellows Module Replacement Kits Butyl Viton /Fluor oelastomer Motor Replacement Kits Inner Module Outer Module SIDE-BY-SIDE BELLOWS PUMPS – REPLACEMENT KITS 13191-043 TWO TANDEM BELLOWS PUMPS – REPLACEMENT KITS THREE TANDEM BELLOWS PUMPS – REPLACEMENT KITS 13700-009 180 Hines Ave. • Bellville, OH 44813 • PH: 419-886-3001 • FAX: 419-886-2338 • www.GRIpumps.com ©2010 Gorman-Rupp Industries

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Bellows Metering Pumps-12

BELLOWS METERING PUMPS Replacement Kits (continued) Notes: (5) Poppet valve kit includes 2 poppet valves and 2 O-rings. (6) Duckbill valve kit includes 2 duckbill valves, 2 seal washers, 1 valve extension and 1 O-ring. (7) Tubing connector kit includes 2 connectors and 2 connector nuts. POPPET VALVE AND O-RING KITS Bellows Size Materials Kel-F® TUBING CONNECTOR KITS Bellows Size DUCKBILL VALVE AND O-RING KITS

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.