Bellows Pump

A reliable source for Metering Pump information and leading Metering Pump Companies & Manufacturers.

In many applications this type of pump is preferred even to the more traditional piston metering pump as it offers high reliability and clean operation. Used in aerospace, avionics, medical, pharmaceutical, fuel, chemical, laboratory and research industries, the bellows pump operates in a fairly simple two part process. Read More…

Bellows Pump Bellows pumps are a specific type of metering pump which use accordion like pleated materials to enact the positive displacement of fluids.

Leading Manufacturers

Schaumburg, IL  |  888-887-7867

Illinois Process Equipment (IPE) distributes high quality metering pumps from Grundfos Corporation. Our capabilities encompass a complete spectrum of services including engineering, system design and fabrication, product stocking, field service, in-house repair, and contract maintenance. You can rely on IPE to provide the best solutions for your application.

Request A Quote

Illinois Process Equipment $$$

North Springfield, VT  |  800-356-4746

IVEK Corp. manufactures precision fluid dispensing systems, ceramic pumps and valves. Capabilities include dispensing volumes from nanoliters to continuous metering rates approaching 4 L/min. Positive displacement pumps produce outstanding accuracy and repeatability. Ceramic internal components provide reliability and low maintenance. Free application testing. ISO 9001 and ISO 13485 certified.

Request A Quote

IVEK Corporation $$$

Spring, TX  |  281-350-5757

We are committed to providing bellows pumps manufactured straight from our state of the art facility and shipped directly to you! We have been serving a a variety of industries since we first opened our doors and this is a tradition that we strive to continue long into the future! Our products will never let you down! Get in touch with our customer service representatives today to learn more about what we can do for you!

Request A Quote

Progressive Pumps Corporation $$$

Enon, OH  |  937-864-7150

SEEPEX manufactures and globally markets progressive cavity pumps for delivering low to highly-viscous, aggressive and abrasive media. Our metering pumps, macerators and control systems are incorporated into state-of-the-art quality management systems around in a broad array of industries. Providing high quality and reliable liquid pumps and metering systems since 1972, SEEPEX has your solution.

Request A Quote

SEEPEX Inc. $$$

Sandpoint, ID  |  281-782-8312

Vindum VP-Series pumps are dual-piston high-pressure metering pumps that deliver ultra-precise, pulse-free, continuous flow in either constant-pressure or constant-rate modes, at up to 25,000 psi. High-temperature versions allow wetted parts of the pump to be heated to 320°F (160°C). Leading-edge design, compact size, and attractive pricing make these metering pumps perfect for a wide range of applications.

Request A Quote

Vindum Engineering, Inc. $$$
placeholder image Illinois Process Equipment IVEK Corporation Progressive Pumps Corporation SEEPEX Inc. Vindum Engineering, Inc.

The first part of a bellows pump mechanics are the rotations or oscillations of an attached motor shaft extending the bellows, creating a vacuum effect which draws fluid in from a reservoir. The inlet valve functions only in one direction, as does the outlet valve in order to eliminate contamination or inaccuracy due to backflow. The continued movement of the motor shaft then retracts the bellows, compressing the material and displacing the fluids which are exhausted through the aforementioned outlet valve. A relatively simple process, bellows pumps can be manual or automatic and offer precision fluid metering with clean and quite operation.

Double and triple bellows systems further the possibilities of this particular type of pump as they allow the handling of hazardous, toxic, corrosive and abrasive materials in addition to fluids such as water, oil and medicine. Introducing a precise amount of fluid with each cycle, these metering systems provide a consistent amount of fluid into a continuous flow stream ensuring the homogeneity of the final process stream. With the capacity to operate for over 10,000 continuous hours without particle shedding or other contamination, bellows pumps offer limitless metering possibilities.

The simple operation of the bellows pump is accompanied by a fairly simple design which is often recognizable in medical apparatus which use the pump to carefully and continuously deliver doses to patients intravenously. The bellows themselves act as the pump head, or the compartment into which the intake fluid enters. The drive shaft is attached to one end of the bellows, with the other connected to a stable plate positioned in the flow line. On one side of the stationary end is the intake valve while the outlet is on the opposite.

While the bellows themselves may be made through electroforming, chemical deposition and mechanical forming; welding together stamped contoured diaphragms is the most popular production method for metal bellows while plastics may be stitched, sewn or molded. Common metals include aluminum, stainless steel, copper and titanium. Plastic materials such as laminated polyester, treated synthetic fabric, rubberized fabric and polyvinyl chloride are used as well.

The check valves are made of similar materials as they too must be suited to the composition of the liquid being metered. The motor is the most variable aspect of the bellows pump as it may be electric or fuel based, or altogether lacking as foot or hand pedals may also be used to enact bellow extension and retraction, though not in timed applications. Additional considerations for bellows pumps include operating pressure, flow and temperature ranges as well as stroke, size and efficiency.