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This section provides an overview for sequence valves as well as their applications and principles. Also, please take a look at the list of 13 sequence valve manufacturers and their company rankings. Here are the top-ranked sequence valve companies as of May, 2025: 1.YUKEN NORTH AMERICA CORPORATION, 2.Carr Lane Manufacturing, 3.Clippard.
Table of Contents
A sequence valve is a type of pressure control valve that ensures actuators, such as hydraulic cylinders, operate in a specific sequence within hydraulic circuits. This is crucial for systems requiring a predetermined order of operations, allowing for one actuator to complete its task before the next begins.
Sequence valves are integral to various industries and machinery, including food and semiconductor manufacturing, as well as construction equipment like cranes and forklifts. These valves enable the precise control of power in hydraulic systems, facilitating the movement of machine tools and large machinery.
In press machines, sequence valves control the sequential operations from material input to product discharge, ensuring large forces are applied in a controlled manner.
Used in mobile cranes, sequence valves manage the order in which the crane's jibs extend and retract, ensuring smooth operation.
A sequence valve directs flow from the primary side to the secondary side once the primary pressure exceeds a set threshold. This action is controlled by a spool within the valve that moves in response to pressure changes, allowing sequential actuator operation.
Comprising a body, spool, ports, a pressure adjustment screw, a spring, and a check valve, sequence valves feature input, output, and drain ports. The operation timing can be finely adjusted via a spring under the adjusting screw.
Based on the source of pilot pressure, sequence valves are categorized into:
Selection criteria include the pressure and flow rate of the circuit, which influence the timing and force of operations. Proper selection is crucial to prevent damage and ensure efficient operation. Understanding the override characteristic, where output gradually shifts to the secondary side before reaching the set pressure, is also important.
The typical operating sequence in a hydraulic circuit involves:
This process ensures that each actuator operates in turn, based on the preset pressure thresholds.
*Including some distributors, etc.
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Yuken North America Corporation is a manufacturer of hydraulic equipment and surface treatment technology founded in 2019 and headquartered in Irvine, California. The company offers a wide range of hydraulic pumps, such as piston pumps, vane pumps, and pump motor combos, along with hydraulic valves like pressure controls and flow controls. It also provides HPU and electric motors, amplifiers, actuators, and accessories. The company is a subsidiary of Yuken Kogyo Co., Ltd., which operates in various countries including the US, UK, Japan, China,Thailand, and more. It serves various industries, including construction, mining, agriculture, manufacturing, and transportation.
Clippard Instrument Laboratory, Inc. was founded in 1941 in Arkansas and is now located in Cincinnati, Ohio. The company is a manufacturer of miniature pneumatic valves, specializing in ultra low leak, precision pressure control, and high-resolution flow control. Categories of Clipard Products include electronic valves, proportional valves, isolation valves, electronic controls, custom solutions, ppressure regulators, control valves, directional control valves, air pilot valves, air preparation equipment, and fittings hose, and tubings.
SC Hydraulic Engineering Corporation, established in 1953 and headquartered in Brea, California, is a manufacturer specializing in hydraulic, pneumatic equipment, and various related products. The company's product range includes liquid pumps, air boosters & systems, gas boosters & systems, power units, high-pressure valves, and more. It boasts the capability to deliver liquid pressures as high as 65,000 psig and gas pressures that can exceed 17,000 psig. It also offers services for the repair or reconditioning of its hydraulic pumps and boosters.
Clamptek Enterprise Co., Ltd., founded in 1974 with headquarters in Taiwan and facilities in the USA and China, is a manufacturer and supplier of manual clamps and pneumatic clamping systems. The company's product line includes push-pull toggle clamps, vertical toggle clamps, horizontal toggle clamps, pneumatic toggle clamps, and hydraulic power units that have a force of up to 600 kilograms. These tools are used in various applications to hold equipment in place. The company also works with original equipment and original design manufacturers to produce custom clamping tools and equipment.
Taicin established in Taiwan, in 1963 is a manufacturer engaged in hydraulic valves and pumps used in industries such as cosntruction, oil and gas and mining. The company manufactures all of its products from raw material to finished goods in their own factories and their product range includes Oil Hydraulic Pump, Directional Control Valves, Cartridge Valves, Electro-Hydraulic Proportional Valves and Oil Hydraulic Accessories. Their products have SO 9001-2015 standards and certification. The company has a R&D center and it provides worldwide customer service and technical support.
Contarini Leopoldo SRL is a designer and manufacturer of hydraulic cylinders founded in 1958 and headquartered in Lugo, Italy. The company specializes in the production of standard and custom-made hydraulic cylinders with bores ranging from 25 mm to over 300 mm and strokes of over 6000 mm. It offers a wide range of cylinders and parts, hydraulic hoses and fittings, hydraulic valves, and gear pumps. The company conforms to the UNI EN ISO 9001:2015 Quality Management System. It caters to diverse sectors, such as industrial, agriculture, marine, food, and chemicals.
Bucher Hydraulics GmbH, founded in 1923 in Germany, is a global manufacturer of hydraulic drive and control technologies for mobile and industrial hydraulic applications. The company's products include hydraulic cylinders, pumps, manifolds, lift tables, and workbenches. Bucher Hydraulics GmbH products are used in elevators, agricultural machinery, lifting equipment, and construction equipment. Their hydraulic drive and control systems are used in wheel loaders, excavators, and concrete boom trucks. The company also offers custom product design, engineering, and production to meet specific requirements.
Fluid Press SRL is a manufacturer of hydraulic valves and integrated manifolds founded in 1971 and headquartered in Emilia-Romagna, Italy. The company offers pressure-reducing valves, sequence valves, pilot-operated valves, shuttle valves, and hydraulic excavator valves. It also provides pressure relief cartridges, overcenters, and custom-made special manifolds to meet specific customer requests. The company is ISO 9001:2015 certified, and its products are sold to over 50 countries worldwide. It caters to various industries, including construction, agriculture, automotive, aerospace, and manufacturing.
Enerpac, since 1910, has been a manufacturer of advanced industrial tools and a service provider located in MenomoneeFalls, Wisconsin, USA. The company produces power units, machine moving tools, pipe blenders, tension meters, and load cells. It also created cutters, gantries, presses, cylinders, and strand jacks used in aerospace, bridges, automotive, mining, and power generation industries. The firm offers rental products, training, hydraulic education, and services such as bolting, tool crib inspection, and calibration. It has 8 manufacturing facilities in The Netherlands, USA, Spain, UK, China, and India.
NOV Inc. is an ISO 9001-certified manufacturer specializing in equipment used in the oil and gas industry. It was founded as Oilwell Supply in 1862 before merging with National Supply in 1987. The company produces equipment, consumables, and digital products used in oil drilling operations. These include drilling rigs, coiled tubing units for well intervention, and data analysis software or hardware. The company also provides customers with oilfield services such as equipment inspection, maintenance, and repair. Some of its notable clients include Halliburton, ExxonMobil, and Transocean.
Related Fluid Power Ltd. is a UK-based manufacturer and supplier of hydraulic power packs, manifolds, and valves established in 1974 and headquartered in Fife, Scotland. The company specializes in the design, development, and production of hydraulic valves, hydraulic manifold systems, and hydraulic power packs. It also offers geared flow dividers and electronic controls. The company provides standard and custom-designed products to OEMs worldwide. It is ISO 9001:2008-certified and serves various sectors, including marine, mining and construction, agriculture, material handling, and light industrial.
Walvoil S.p.A., established in 1973 and based in Reggio Emilia, Italy, is a manufacturer and supplier specializing in hydraulic valves and mechatronic systems. The company's product portfolio includes directional valves, cast iron gear motors, and flexible cable remote controls. These products are used in various sectors, including agriculture, material handling, and earth moving. The company is ISO 9001:2015 and ISO 14001:2015 certified, with branches and sales offices in various countries including the United States, Brazil, and Australia.
Ranking as of May 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | YUKEN NORTH AMERICA CORPORATION |
14.3%
|
| 2 | Carr Lane Manufacturing |
14.3%
|
| 3 | Clippard |
14.3%
|
| 4 | FLUID PRESS SRL |
9.5%
|
| 5 | ENERPAC |
9.5%
|
| 6 | Bucher Hydraulics GmbH |
9.5%
|
| 7 | Related Fluid Power Ltd |
4.8%
|
| 8 | CONTARINI LEOPOLDO SRL |
4.8%
|
| 9 | SC Hydraulic Engineering Corporation |
4.8%
|
| 10 | Clamptek Enterprise CO., LTD. |
4.8%
|
Derivation Method
The ranking is calculated based on the click share within the sequence valve page as of May 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
|
4 | 40.0% |
|
Taiwan
|
2 | 20.0% |
|
Italy
|
2 | 20.0% |
|
Germany
|
1 | 10.0% |
|
United Kingdom
|
1 | 10.0% |
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