Compact Bellows Metering Pumps
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Compact Bellows Pumps A GORMAN-RUPP COMPANY 180 Hines Ave. • Bellville, OH 44813 • PH: 419-886-3001 • FAX: 419-886-2338 • www.GRIpumps.com CompactBellows_Product_Overview_1214

Compact Bellows Metering Pumps Product Overview GRI’s line of Compact Bellows Metering Pumps were specifically designed for metering applications requiring low discharge pressures. Compact pumps have been successfully applied in photo, X-ray and dental film processors; silver recovery; and scientific and analytical instruments. The compact bellows pumps utilize GRI’s proven bellows and valving technology to provide an accurate and economical metering pump with long life. The proprietary blended polypropylene materials of construction and a wide selection of valve and O-ring elastomers...

Flow Adjustment: The ½” and ¾” bellows modules can be adjusted to 20% of maximum stroke length, while 1”, 1-1/2” and 2” bellows modules can be adjusted down to 10% of maximum stroke. Note: Best priming and metering accuracy occurs when the stroke length is 50% or greater. Standard Crank — Adjustment cannot be made while pump is operating. An adjusting screw changes the stroke length of an eccentric crank. Compact Bellows Metering Pump Specifications: Flow Rates — Range from 3.8 ml/min to 1620 ml/min, Tandem flow rates to 3,000 ml/min. Max Discharge Pressure — Range from 5 to 30 psi...

Features • Average repeatability from stroke-to-stroke, ±0.75% • Self-priming • Superior corrosion resistance • Simple flow adjustment • Dry run capability • No dynamic seals • Economical OEM Options GRI’s goal is to meet your special needs. Whether it’s modifying a current product or designing a new pump according to your exact specifications, our technical sales staff and engineering department are uniquely structured to quickly evaluate your application and create a solution specific to your pumping needs. Please contact us to discuss a custom engineered solution to meet your pumping...

Pump Covers In addition to the standard options, cover options can also include different wire or cord lengths and terminations, strain reliefs and ground wires. EXPLODED VIEW-COMPACT BELLOWS METERING PUMP SEE VALVE KITS CHART SEE TUBING CONNECTORS CHART SEE BELLOWS MODULE REPLACEMENT KITS CHART SEE VALVE KITS CHART LOCATE IN MOTOR SHAFT INDENTATION AND TIGHTEN TO 25-28 IN-LBS TORQUE. LARGEST BELLOWS MODULE ALWAYS CLOSEST TO MOTOR. DO NOT ADD LUBRICANT TO ANY PUMP MECHANISM. TO ORDER REPLACEMENT PUMPS OR KITS, CALL YOUR LOCAL GRI DISTRIBUTOR 180 Hines Ave. • Bellville, OH 44813 • PH:...

.19 (4.80) WIDE MTG. SLOT (2-SLOTS PER PUMP MODULE) DIMENSION C Without Cover Model With Cover Note: Dimensions include .16" bearing extension. Dimensions in Inches (Dimensions in Millimeters) 180 Hines Ave. • Bellville, OH 44813 • PH: 419-886-3001 • FAX: 419-886-2338 • www.GRIpumps.com CompactBellows_Product_Overview_1214

Compact Bellows Pumps Pump Selection Guide A GORMAN-RUPP COMPANY p r e s e n t s Compact Bellows Metering Pumps The Compact Bellows Metering Pumps are designed for applications with low pressure requirements. Maximum discharge pressure to 5-psi. Pumps are only available with standard crank mechanism. Pumps with up to four (4) bellow modules are available. Flow rate for each module is independentaly adjustable. Order Notes: When ordering a compact bellows model, refer to the Pump Selection Process steps 1 through 6 and follow the example provided below. Example: The model number and code for...

Continued from previous page Pump Selection Process: 4. Using Chart D, select appropriate F-Code according to each bellow’s module size, valve type and elastomer. Note: The largest bellows module will be configured closest to the motor. 5. Using Chart E, select one T-Code for each F-Code chosen from Chart D. 6. Optional: Place desired H-Code from Chart F at end of model number. Without an H-Code, the pump will be have exposed motor and bare wire leads. Bellows, Valve Type and O-ring Material Selection Options Poppet EPT/EPDM Poppet Viton® Duckbill EPT/EPDM Duckbill Viton Tubing Connector...

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

COMPACT 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. (Valve extension required only on suction port.) O-Ring (Elastomer) Material Spring...

Replacement COMPACT BELLOWS PUMPS Notes: (1) Duckbill valve kit includes 2 duckbill valves, 2 seal washers, 1 valve extension and 1 O-ring. (2) Poppet valve kit includes 2 poppet valves and 2 O-rings. (3) Tubing connector kit includes 2 connectors and 2 connector nuts. (4) Bellows module kits include connecting rod assembly, bellows module, displacement cup, screws and O-rings. (5) Compact crank kit includes 1 set screw, 1 retaining ring and 1 crank assembly. To order, refer to Replacement Kit charts on back. Poppet Valve Kit (2) Tubing Connector Kit (3)