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Sectional valves - manual control valves in modular design
Discover high-quality sectional valves from Hydromot for precise manual control of hydraulic oil flow in mobile hydraulics. Our modular hydraulic directional control
valves offer 1 to 8 sections, allowing you to flexibly control the functions of hydraulic cylinders and motors – ideal for agricultural machinery,
construction equipment, and industrial applications. Learn more...
valves offer 1 to 8 sections, allowing you to flexibly control the functions of hydraulic cylinders and motors – ideal for agricultural machinery,
construction equipment, and industrial applications. Learn more...
1 to 9 (from a total of 9)
These robust valves, manufactured from high-quality steel or aluminium, are designed for flow rates from 80 to 140 l/min and operating pressures up to 315 or 350 bar. Many models are spring-centered, double-acting and equipped with an adjustable pressure relief valve (PRV), factory-set to 175 bar and adjustable between 125 and 250 bar. Typical port sizes such as G 3/4" or G 1/2", as well as functions like neutral and float position, make our sectional valves an ideal choice for high-performance hydraulic systems.
Sectional Valves – Frequently Asked Questions (FAQ)
What are sectional valves and how do they function in hydraulic systems?
Sectional valves are modular manual control valves used to regulate the flow direction and flow rate of hydraulic oil. Each section controls a single hydraulic actuator such as a cylinder or motor. They usually include a neutral position (open center / tank circulation) and working positions for directing the oil to the actuator.
What are the main advantages of the modular design of sectional valves?
The modular design allows flexible combination and expansion of sections. This results in a compact layout for controlling multiple functions and enables optimal adaptation to various machine types and customer-specific requirements.
In which industries and vehicle applications are sectional valves mainly used?
Sectional valves are primarily used in mobile hydraulics, such as agricultural machinery (tractors, harvesters), construction equipment (excavators, loaders, cranes), as well as industrial hydraulics and municipal or special vehicles.
What materials are sectional valve components typically made of?
The valve body is usually made of high-quality steel or ductile iron. The spools are manufactured from hardened, wear-resistant steel. Common sealing materials include NBR, FKM (Viton), and PTFE, which provide excellent media and temperature resistance.
What typical performance characteristics do sectional valves have regarding flow and pressure?
Typical nominal flow rates range from 20 l/min to over 140 l/min. Common versions include 40, 80, and 140 l/min. Maximum working pressures vary by model, typically between 250 bar and 350 bar.
How many sections can be combined in a sectional valve?
Depending on the valve series, between 1 and more than 8 sections can be combined. Some heavy-duty versions accommodate up to 12 sections, each responsible for a specific hydraulic function.
What should be considered when selecting a sectional valve?
Key selection criteria include the required flow rate, maximum working pressure per actuator, the number and type of hydraulic consumers (single- or double-acting), and compatibility with connection ports, thread sizes, and installation dimensions.
How can the service life of sectional valves be optimized?
Service life — often 10 years or more — depends heavily on hydraulic fluid cleanliness. Adhering to oil cleanliness classes, clean system operation, and regular maintenance such as semi-annual or annual leak checks and seal replacement is essential.