• Hydra Part 3/4" 3 port manual diverter valve (open centre) - Approved Hydraulics
    Regular price £52.81
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    3/4" 3 port manual diverter valve (open centre)

    Key Features

    • ["Port size: 3/4" bsp"
    • Configuration: 3 port ; open centre
    • Nominal flow: 100 lpm
    • Max pressure: 250 bar
    • "Function: manual rotary diverter for circuit selection"]
    Regular price £52.81
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Hydra Part 1/2" 3 port manual diverter valve (open centre) - Approved Hydraulics
    Regular price £38.46
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    1/2" 3 port manual diverter valve (open centre)

    Key Features

    • Ports: 1/2' bsp 3 way ; 2 position
    • Centre: open centre
    • Nominal flow: 90 l/min
    • Max pressure: 300 bar
    • Body: carbon steel ; blow out proof stem
    • Use: switch flow between two circuits
    Regular price £38.46
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Hydra Part 3/8" 3 port manual diverter valve (open centre) - Approved Hydraulics
    Regular price £30.11
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    3/8" 3 port manual diverter valve (open centre)

    Key Features

    • ["Port size: 3/8" bsp"
    • Configuration: 3 port ; open centre
    • Nominal flow: 35 lpm
    • Max pressure: 350 bar
    • "Function: manual rotary diverter for circuit selection"]
    Regular price £30.11
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • High Pressure 3 Port Manual Diverter Valve - Steel 1" 500Bar - Approved Hydraulics Limited
    Regular price £125.34
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    High Pressure 3 Port Manual Diverter Valve - Steel 1" 500Bar

    Key Features

    • Type: 3 port manual diverter valve
    • Ports: 1" bsp
    • Pressure: up to 500 bar class
    • Body: steel construction
    • Use: select pressure line between two circuits
    Regular price £125.34
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Adam Hindle

    Sales Director

    I began my engineering career at Stockport College in around 2005, first completing a National Diploma in Electrical Engineering, followed by a Higher National Diploma in Mechanical Engineering. I then progressed to the University of Salford, where I earned a BEng (Hons) degree in Mechanical Engineering.

    After graduating, I started my professional career with Approved Hydraulics. I initially gained a combination of hands-on workshop experience and telephone-based sales experience. In later years, I moved into a full-time sales role and led the new crane and excavator attachments department that the company had recently established.

  • Out of Stock
    4 Port Manual Diverter Valve - 1/2" Open Centre
    Regular price £60.89
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    4 Port Manual Diverter Valve - 1/2" Open Centre

    Key Features

    • Type: 4 port 2 position manual diverter spool
    • Ports: 1/2" bsp
    • Centre: open centre
    • Use: select between two actuator circuits
    • Body: steel with plated handle
    Regular price £60.89
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    • Delivery to UK & Ireland
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  • Out of Stock
    High Pressure 3 Port Manual Diverter Valve - Steel 3/4" 500Bar
    Regular price £98.78
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    • Delivery to UK & Ireland

    High Pressure 3 Port Manual Diverter Valve - Steel 3/4" 500Bar

    Key Features

    • Type: 3 port manual lever diverter ; open centre
    • Pressure rating: up to 500 bar
    • Port size: 3/4"
    • Function: diverts inlet to a or b ; closed centre when specified
    • Use: circuit selection on high pressure lines
    Regular price £98.78
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Out of Stock
    Hydra Part 1" 3 port manual diverter valve (open centre) - Approved Hydraulics
    Regular price £116.57
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    • Delivery to UK & Ireland

    1" 3 port manual diverter valve (open centre)

    Key Features

    • Port size: 1\" bsp
    • Configuration: 3 way ; 2 position open centre
    • Function: manual rotary diverter for circuit selection
    • Mounting: in line installation
    • Typical applications: circuit selection for attachments ; auxiliary functions
    Regular price £116.57
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Out of Stock
    Hydraulic Leg Lock off Valve - Isolator - Diverter valve 3/8" - Approved Hydraulics Limited
    Regular price £134.50
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    • Delivery to UK & Ireland

    Hydraulic Leg Lock off Valve - Isolator - Diverter valve 3/8"

    Key Features

    • Type: lock off ; diverter valve
    • Port size: 3/8"
    • Function: isolate hydraulic leg circuit
    • Use: service ; transport safety
    • Application: hydraulic system component
    Regular price £134.50
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Out of Stock
    3 WAYS Manual Diverter Valve 3/4'', 120 l/min
    Regular price £106.21
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    3 WAYS Manual Diverter Valve 3/4'', 120 l/min

    Key Features

    • Type: 3-way manual diverter valve
    • Port size: 3/4'' BSP
    • Max flow: 120 l/min
    • Pressure class: up to 350 bar (family rating)
    • Ports: P to pressure; A/B to circuit outlets
    • Operation: lever-actuated; mechanical detents
    • Use: high-flow circuit selection for truck hydraulics
    Regular price £106.21
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 3 Ways Manual Diverter Valve 3/8", 60 l/min
    Regular price £62.44
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    • Delivery to UK & Ireland

    3 Ways Manual Diverter Valve 3/8", 60 l/min

    Key Features

    • Type: 3-way manual diverter valve
    • Port size: 3/8" BSP
    • Max flow: 60 l/min
    • Pressure class: up to 350 bar (family rating)
    • Ports: P to pressure; A/B to circuit outlets
    • Operation: lever-actuated; mechanical detents
    • Use: direct flow to one of two outlets in mobile hydraulics
    Regular price £62.44
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

Manual Diverter Valves

Common Calculations FAQs

Calculating force, speed, pressure, power, and efficiency in hydraulic applications.

How do you calculate actuator speed?

Actuator speed is determined by flow rate and cross-sectional area:

Speed = Flow rate ÷ Area

Flow rate is the volume of fluid delivered (in L/min or GPM).

Area is the cross-sectional area of the actuator piston: π × (diameter ÷ 2)².

How do you calculate cylinder force?

Cylinder force can be calculated using:

Force = Pressure × Area

Pressure is the system pressure (in psi or bar).

Area is the cross-sectional area of the cylinder bore (in square inches or square centimeters).

Area = π × (bore diameter ÷ 2)².

How do you calculate pressure drop across a valve?

Pressure drop can be calculated using the valve flow coefficient (Cv):

Pressure Drop (ΔP) = (Flow Rate)² ÷ (Cv² × Fluid Density)

Flow Rate is the fluid flow (in GPM or L/min).

Cv is the valve flow coefficient.

Fluid Density is the density of the hydraulic fluid.

How do you size an accumulator?

Accumulator sizing considers required flow, pressure, and pre-charge:

Accumulator Volume = Flow Rate × Time ÷ Pressure

This determines how much fluid must be stored to maintain system pressure.

How to convert psi to bar?

Use the conversion factor: 1 bar = 14.5 psi.

To convert psi to bar, divide psi by 14.5.

Example: 200 psi ÷ 14.5 = 13.79 bar.

What is pre-charge pressure in an accumulator?

Pre-charge pressure is the initial gas pressure in the accumulator before fluid enters.

It helps maintain system pressure as the accumulator discharges.

Typically set to 70–80% of system operating pressure.

What is specific gravity of hydraulic fluid?

Specific gravity is the ratio of hydraulic fluid density to water.

A value of 1 means equal density.

Less than 1 means the fluid floats; greater than 1 means it sinks.

What is torque in a hydraulic motor?

Torque is the rotational force produced based on system pressure and motor displacement:

Torque = Pressure × Displacement ÷ 2π

Pressure is the operating system pressure.

Displacement is the volume displaced per revolution (in cubic inches or cubic centimeters).

What unit is hydraulic power measured in?

Hydraulic power is measured in horsepower (HP) or kilowatts (kW).

Hydraulic horsepower can be calculated using:

HP = (Pressure (psi) × Flow rate (GPM)) ÷ 1714.

What’s the relationship between pump speed and flow?

Flow rate is directly proportional to pump speed.

If pump speed doubles, flow rate doubles (assuming constant displacement).

This is important when adjusting flow or selecting a pump for varying speeds.