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Selecting the appropriate directional hydraulic control valve

There are two primary characteristics for selecting a directional hydraulic control valve: the number of fluid ports and the number of positions (directional states) that the valve can achieve.

Consider the following when selecting your directional control valves for hydraulics:

  • Selection should be based on the size of the circuits and the components, both upstream and downstream to the valve.
  • Flow ratings should be based on the highest possible flow the valve will need to achieve.

An industrial solenoid operated directional control valve can be interchanged between many manufacturers due to industry standard mounting connections.

Directional Poppet Type Valves – additional info

There are 4 in the range with flow rates of 25 to 40 litres per minute. The range consists of Directional Seat Valves 350 Bar, Directional Poppet Type Seat Valves 420 to 620 Bar, Directional Poppet Type Valves 350 Bar and Directional Poppet Type Valves Seat Valves.

Advantages to this range are that they open a flow path to the outlet immediately and provide a fast response time. They are responsive and provide a positive seal when poppets seat.

Flow Control Valves – additional info

High performance flow control valves for shutting off, controlling and varying hydraulic flow. Throttle and Double Throttle Check Valves and 2-Way Control Valves make up this range, both of which control the opening and closing process of fluid flow automatically without obstructing the flow of fluid in the system.

Directional Solenoid Valves – additional info

Hydraulic solenoid directional control valves that consist of direct operated and pilot operated directional solenoid valves that feature maximum flows of up to 1 100 litres per minute. There are 7 Bosch Rexroth variations to choose from, 2 in the pilot operated range and 5 in the direct operated range. The design of this range of solenoid operated hydraulic valves provides high tolerance to contamination, making them a popular choice for many industrial applications.

Proportional Control Valves – additional info

This range consists of 11 Bosch Rexroth proportional directional valves, each providing various advantages. Flow rates vary from 80 l/min to 3 000 l/min and operating pressure ranging from 250 to 350 bar.

Our hydraulic valve types

The Bosch Rexroth SA Group of Companies supplies a range of hydraulic valves from world-leading valve brands.

In addition to Bosch Rexroth, the brands used include M+S Hydraulic, LuEn and SALAMI.

These hydraulic valves range from check valves to high-pressure valves to flow control valves in large, small or mobile configurations.

All of these valves are supplied, maintained and repaired throughout sub-Saharan Africa.

Africa’s largest hydraulics components, products and systems supplier

Our range of hydraulic products consists of over 500 different components. In addition to this range of hydraulic products, we also offer world-class repair, service, testing and calibration and installation facilities to meet the requirements of any application.

In addition to our range of hydraulic valves, our hydraulic products include hydraulic pumps, gearboxes, coolers, pilot control units, motors, cylinders, hoses and fittings, maintenance tools and accessories.

Get in touch with the Bosch Rexroth South Africa Group on +27 11 975 9700.