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This section provides an overview for bellows pumps as well as their applications and principles. Also, please take a look at the list of 13 bellows pump manufacturers and their company rankings. Here are the top-ranked bellows pump companies as of February, 2025: 1.SKC Inc., 2.Cole-Parmer, 3.IWAKI AMERICA INC..
Table of Contents
Bellows Pumps are pumps that utilize bellows, an elastic component with a bellows-like shape.
Fluid is discharged and transported by changes in the volume of the bellows. It does not require a shaft, etc., and features a low risk of fluid leakage.
Also, since the iron does not come in contact with the fluid, it can handle even hazardous chemicals, depending on the type. A wide range of types exist, from small, fine-tunable pumps to large pumps capable of handling flow rates of 30 L/min.
Bellows Pumps are used to transport hazardous chemicals, chemicals that corrode metal when in contact with metal, highly viscous liquids, beverages, and other liquids. Specifically, they are used in a wide range of fields, including semiconductor manufacturing processes, chemical plants, food processing plants, and manufacturing plants for precision equipment such as printed circuit boards.
When selecting a Bellows Pump, it is necessary to consider whether the interior of the pump is suitable for the liquid to be transported, the pump's transport volume, size, power consumption, sensitivity to stop signals, etc., and ease of maintenance.
Bellows Pumps have bellows connected to a vessel with suction and discharge ports. A pressure vessel is placed inside the bellows, and the pressure is increased by a compressor. Valves are attached to the suction and discharge ports.
Some pumps have a single bellows connection, while other models have two bellows connections, allowing for the transport of large volumes of liquid. During the suction process, compressed air inside the pump is discharged to the outside, causing the bellows to contract. At this time, the suction valve opens and the fluid flows into the vessel.
During the discharge process, compressed air is supplied to the bellows from the pressure vessel, which closes the valve at the suction port and opens the valve at the discharge port, causing the bellows to expand. This pushes the fluid out of the outlet. These operations are repeated at high speed to provide a stable flow rate.
Bellows Pumps are classified into various types according to their operating method, bellows material, connection method, and application.
There are two types of bellows pumps: those that use bellows movement to suction and discharge liquid, and those that use pressure changes caused by bellows movement to move liquid.
The discharge method has a relatively simple structure, while the transfer method by pressure change enables more advanced control, but the device itself tends to be more complex.
There are two types of bellows materials: metallic bellows and non-metallic bellows. Metallic bellows are resistant to high temperatures and high pressures and have excellent durability.
On the other hand, non-metallic bellows are used when resistance to certain chemicals and flexibility are required.
There are two types of bellows connection methods: single bellows and multiple bellows. The single bellows type uses a single bellows for suction and discharge of liquid.
On the other hand, in the multiple bellows type, multiple bellows work in tandem to convey a larger volume of liquid at high speed.
There is a wide variety of models for different applications, ranging from general fluid transport to liquid transport under specific conditions (e.g., transport of hazardous chemicals, transport of liquids under high temperature and pressure, etc.).
Each of these types is designed for a specific application, and the appropriate Bellows Pump must be selected for that application.
When selecting a Bellows Pump, the following points should be considered
It is important to understand "what is to be conveyed and how," "what volume is to be conveyed," and "is resistance to certain chemicals and temperatures required?
Some Bellows Pumps have a long service life and do not need to be replaced frequently. However, some products require periodic replacement.
The cost of Bellows Pumps is another important factor. Not only the initial cost, but also the long-term operating costs (power consumption, maintenance costs, etc.) must be considered.
*Including some distributors, etc.
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SKC Inc., founded in 1983 with headquarters in the USA, is a manufacturer of industrial hygiene and occupational safety equipment and accessories. The company's products include air sampling equipment, gas and vapor samplers, particulate samplers, bioaerosol samplers, and noise and sound equipment. SKC Inc. also provides PPE and cleansing solutions. SKC Inc.'s services include calibration and repair services for flowmeters and sample pumps, as well as rental services. The company serves a wide range of industries, assisting employers with meeting hygiene and occupational safety requirements.
Unisource Manufacturing Inc., founded in Portland, OR, in 1980 is a manufacturer of hose products, expansion joints and hydraulic hose and fittings. The company's product portfolio includes flex connectors for HVAC applications, Sanitary hoses and fittings, Air and Multipurpose Hoses, and industrial hoses used in tank truck service, chemical handling, oil refining and food processing. Their products are used in industries such as Food and Beverage, Pharmaceutical and Biotechnology, Chemical and Petrochemical, Environmental Testing and healthcare.
General Pump & Equipment Co., Inc., a company founded in 1969, is a manufacturer of hydrostatic testing equipment in Canton, Ohio. It offers electric, gas, air powered hydrostatic testers ranging from 350 PSI to 10,000 PSI with a leak-free system. These products are designed for high-pressure water tests. The company is also available for service and repair. Its customers include sprinkler and mechanical contractors, plumbing and excavating companies, manufacturers, and submarines.
Nippon Pillar Corporation of America (NPCA) was established in July 1999 and is a manufacturer of Sealing Solutions and Fluid Control products headquartered in Houston, Texas. The company is a subsidiary of Nippon Pillar Packing Co., Ltd (NPPC). Its products include fluid handling products, semi-metallic cylindrical packing for steamboats (gland packing), gaskets, and mechanical seals. The company also offers OEM service for its gland packing products to meet customer’s specific requirements. Its quality management system complies with the ISO 9001 standards.
White Knight is a manufacturer of high purity chemical, solvent, and slurry pumps that are entirely free of metal and O-rings established in USA and founded in 1995. The company supports such high-tech industries with superb bellows pumps, diaphragm pumps, metering pumps, dispense pumps, pressure vessels, pressure regulators, closed-loop control systems, and other fluid handling components. Their products are engineered and manufactured in-house for complete quality control. High-purity products are assembled, tested, and packaged in our Class 100 cleanroom.
Gorman-Rupp Pumps, founded in the year 1933, and based in Ohio, United States, is a manufacturer and supplier of pumps and pumping systems. Their product portfolio includes different types of pumps self-priming and standard centrifugal, submersible, rotary gear, hydraulic, engine-driven, and booster stations. The products are used in multiple industries which include petroleum, construction, agriculture, sewage, and water stations. The company also offers pump finder technology and pump selector tools on its website.
IWAKI AMERICA INC. is an Iwaki Pumps manufacturer established in Holliston, Massaschussets since 1974. Being part of a global network of manufacturers, the company produces magnetic drive pumps used to pump acids, caustics, and low- or high-temperature fluids. It also makes chemical metering pumps, for chemical dosing applicatications, and other technologies. Its products are used in industries like the power generation, mining, marine and the biofuels markets. In addition, the venture follows ISO9001 quality control standards.
Iwaki Co., LTD was founded in 1956 in Japan. Iwaki is a producer of pumping products and water quality control systems and is the world’s leading pump manufacturer maintaining a global sales and distribution network. Serviced industries include semiconductors, water treatment, surface treatment, food processing, paper production, chemicals and pharmaceuticals.
Saint-Gobain in Japan, established in 1917 and headquartered in Tokyo, Japan, is a manufacturer and distributor of materials and solutions for construction, mobility, healthcare, and various other industrial applications. The company's product portfolio includes glass ceramics, abrasive products, performance plastics, glass wool, and automotive glass. These products are applied in various industries, including automotive, aeronautical, healthcare, defense, and the food and beverage industry. The company holds both ISO 9001 and ISO 14001 certificates, as well as an OHSAS 18001 certificate for quality and EHS (Environmental Health and Safety) systems.
Nikkora Eiko, a company founded in 1969 and based in Tokyo, Japan, is a manufacturer and supplier of pumps and water treatment technologies. The company's product portfolio includes magnetic drive pumps, bellows pumps, and diaphragm pumps BX series. These products are used in various sectors including power generation, wastewater management, and the food and beverage industry. The company is ISO 9001:2015 certified and has a sales network in various countries, including the United States, China, and the United Kingdom.
AFC International was founded in 1992 and is a distributor of gas detection, air monitoring, and respiratory protection products located in DeMotte, Indiana. The company sells various types of gas detectors, tubes, calibration supplies, air-purifying respirators, and PAPRs. The products can be used for safety, health, industrial hygiene, hazmat, and firefighter protection applications. It also offers repair and calibration services for gas detectors. The company is certified by ASSE and WBENC.
Ranking as of February 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | SKC Inc. |
17.4%
|
| 2 | IWAKI AMERICA INC. |
10.6%
|
| 3 | Cole-Parmer |
9.8%
|
| 4 | AFC International |
8.3%
|
| 5 | Unisource Manufacturing Inc. |
8.3%
|
| 6 | General Pump & Equipment Co., Inc. |
8.3%
|
| 7 | NIPPON PILLAR CORPORATION OF AMERICA |
8.3%
|
| 8 | White Knight Fluid Handling, Inc. |
7.6%
|
| 9 | Gorman-Rupp Pumps |
6.8%
|
| 10 | Saint-Gobain in Japan |
6.8%
|
Derivation Method
The ranking is calculated based on the click share within the bellows pump page as of February 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
7 | 77.8% |
|
Japan
|
2 | 22.2% |
42 products found
42 products
Irie Co., Ltd.
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■Energy saving design The dead volume of the air chamber has been minimized to reduce air consumption. ■Medium temperature type and high temperatu...
Irie Co., Ltd.
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■High speed stroke The high-speed stroke (Max.200spm: FS-80NT type) makes it compact, lightweight, and low cost. ■Contamination-free design All we...
Irie Co., Ltd.
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Achieved smaller size, lighter weight, and lower cost by increasing pump stroke speed ■High speed stroke By increasing the pump stroke speed (Max....
Irie Co., Ltd.
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4.5 Company Review
■High pressure/long life The use of thick bellows enables high pressure discharge of Max.0.45MPa. Moreover, the bellows life is 3 to 4 times longer...
Irie Co., Ltd.
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■Two types with medium temperature specifications The FA-2 type, a horizontal low flow rate model, and the FA-40VEW type, a vertical high flow rate...
Irie Co., Ltd.
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Achieves low pulsation without the need for a damper, contributing to total cost reduction.Achieves stable operation with excellent load followabil...
Irie Co., Ltd.
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■Bellows type air pump with corrosion and heat resistance in mind The basic characteristics are the same as the APN series. The BA series is a high...
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Completely leak-free, long life, excellent corrosion resistance, and can run dry. Ideal for equipment integration, liquid fertilizer injection, coo...
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■ Features Small, lightweight.
3 models listed
IBS Co., Ltd.
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■ Features ・ Can be used for high -temperature gas up to 230 ° C. ・ Explosion -proof is possible by optional.
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IBS Co., Ltd.
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■ Features ・ It can be used for increased pressure of 275kpag or more and circulation applications that cannot be supported by standard type. ・ E...
IBS Co., Ltd.
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4.0 Company Review
■ Features ・ Explosion -proof is possible by optional. ・ Double bellows structure completely shut off the leak to the outside. ・ If the leak sen...
2 models listed
Flow Joint Co., Ltd.
70+ people viewing
Last viewed: 1 day ago
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■Product overview PP-20 series/PTFE pneumatically driven bellows pumps are ideal for ultrapure water and aggressive chemical applications. This pro...
