• 1/2" BSP Coned Blanking Plug - Approved Hydraulics Limited
    Regular price £2.32
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    1/8" BSP Coned Blanking Plug

    Key Features

    • Type: 60° coned seat blanking plug
    • Thread: 1/8 BSP
    • Seal: metal-to-metal on 60° cone
    • Material: plated steel for high pressure service
    • Use: safe isolation of unused ports
    Regular price £2.32
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    • Order by 3pm for Next Day Delivery
  • 1/8" BSP Female Swivel Blanking Cap
    Regular price £5.68
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    1/8" BSP Female Swivel Blanking Cap

    Key Features

    • Type: female swivel blanking cap
    • Thread: 1/8 BSP
    • Function: seals a swivel female hose end when not in use
    • Material: plated steel with hex for tightening
    • Use: protect against contamination and leakage
    Regular price £5.68
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  • 3/8" BSP Male x 1/2" BSP Male Adaptor - Approved Hydraulics Limited
    Regular price £8.08
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    1/8" BSP Male x 1/2" BSP Male Adaptor

    Key Features

    • Type: straight adaptor (BSP adaptor)
    • Threads: 1/8 to 1/2 BSP
    • Standard: BSPP parallel per ISO 228 unless otherwise specified
    • Material: plated carbon steel for hydraulic service
    • Use: join hoses; valves; pipe runs or adapt port sizes
    Regular price £8.08
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    • Order by 3pm for Next Day Delivery
  • 1/2" BSP Male x 1/2" BSP Female Swivel Adaptor - Approved Hydraulics Limited
    Regular price £6.59
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    1/8" BSP Male x 1/4" BSP Female Swivel Adaptor

    Key Features

    • Type: swivel adaptor (male to female)
    • Threads: 1/8 to 1/4 BSP
    • Swivel: captive nut allows hose connection without twisting
    • Seal: cone/washer seal depending on variant
    • Use: connect hoses where rotation during assembly is restricted
    Regular price £6.59
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  • Team Member

    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.

  • 3/8" BSP Male x 1/2" BSP Male Adaptor - Approved Hydraulics Limited
    Regular price £2.80
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    1/8" BSP Male x 1/4" BSP Male Adaptor

    Key Features

    • Type: straight adaptor (BSP adaptor)
    • Threads: 1/8 to 1/4 BSP
    • Standard: BSPP parallel per ISO 228 unless otherwise specified
    • Material: plated carbon steel for hydraulic service
    • Use: join hoses; valves; pipe runs or adapt port sizes
    Regular price £2.80
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 1/2" BSP Male x 1/2" BSP Female Swivel Adaptor - Approved Hydraulics Limited
    Regular price £6.59
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    1/8" BSP Male x 3/8" BSP Female Swivel Adaptor

    Key Features

    • Type: swivel adaptor female to female
    • Threads: 1/8 to 3/8 BSP
    • Swivel: captive nuts allow hose connection without twisting
    • Seal: flat-faced or washered seal depending on variant
    • Use: hose-to-hose connection where orientation matters
    Regular price £6.59
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 1/8" BSPP Male Blank Plug with O-ring Seal - Approved Hydraulics Limited
    Regular price £5.68
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    1/8" BSPP Male Blank Plug with O-ring Seal

    Key Features

    • Thread: g 1/8 bspp
    • Seal: captured o ring face
    • Use: blank manifold ; valve ports
    • Material: steel ; zinc plated
    • Standard: bspp parallel thread
    Regular price £5.68
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  • 10 Metre Scanreco Control Cable (5 Pin) - Approved Hydraulics Limited
    Regular price £221.57
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    10 Metre Scanreco Control Cable (5 Pin)

    Key Features

    • Type: receiver control cable
    • Interface: 5 pin connector
    • Length: 10 m
    • Sheath: industrial grade jacket with strain relief
    • Use: connect RC400 receiver to power ; valves or IO
    Regular price £221.57
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    • Order by 3pm for Next Day Delivery
  • Out of Stock
    100cc MR (SHD) motor with 1" 6 spline shaft - 2 bolt flange - Approved Hydraulics Limited
    Regular price £342.06
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    • Delivery to UK & Ireland

    100cc MR (SHD) motor with 1" 6 spline shaft - 2 bolt flange

    Key Features

    • Type: low speed high torque orbital motor MR series
    • Displacement: 100 cc per rev class
    • Shaft: 1 inch 6 spline SAE 6B
    • Mount: 2 bolt SAE A oval flange
    • Ports: side ports typically G 1/2
    • Use: agricultural ; industrial drives
    Regular price £342.06
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 100L Control Valve  A & B Port Reliefs Blanking Plug
    Regular price £6.58
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    100L Control Valve A & B Port Reliefs Blanking Plug

    Key Features

    • Part: blanking plug for a ; b service port relief cavities
    • Compatibility: 100l sectional control valve
    • Function: blocks relief cavity when relief not fitted
    • Use: system using external over pressure protection
    • Maintenance: service replacement component
    Regular price £6.58
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    • Order by 3pm for Next Day Delivery
  • 100L Control Valve  Double Acting Working Section  3/4"
    Regular price £151.88
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    100L Control Valve Double Acting Working Section 3/4"

    Key Features

    • Series: 100L GS sectional control valve
    • Section: double acting working section
    • Port size: 3/4 BSP
    • Main ports: P G 1/2 ; A ; B G 1/2 ; T ; C G 1/2 or 3/4
    • Circuits: parallel ; tandem ; series with carry-over
    • Applications: mobile hydraulics ; loaders ; cranes
    Regular price £151.88
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 100L Control Valve  Pressure Compensated Flow Divider Section Type DFG
    Regular price £460.73
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    100L Control Valve Pressure Compensated Flow Divider Section Type DFG

    Key Features

    • Section type: pressure compensated flow divider . dfg
    • Function: splits inlet flow at fixed ratio independent of load
    • Compatibility: 100l gs sectional valve system
    • Use: parallel tool operation with balanced speeds
    • Integration: installs as intermediate working section
    Regular price £460.73
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    • Order by 3pm for Next Day Delivery
  • 100L Control Valve Double Acting Spool (Type 1) - Approved Hydraulics Limited
    Regular price £24.19
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    100L Control Valve Double Acting Spool (Type 1)

    Key Features

    • Spool type: double acting type 1
    • Positions: 3 position ; spring return to neutral
    • Neutral: a and b closed in neutral
    • Use: bi directional cylinders
    • Compatibility: 100l valve family
    Regular price £24.19
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    • Order by 3pm for Next Day Delivery
  • 100L Control valve Inlet  Section 3/4 Left Inlet (AC)
    Regular price £104.42
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    100L Control valve Inlet Section 3/4 Left Inlet (AC)

    Key Features

    • Section type: left inlet (ac) with pressure relief
    • Port size: 3/4" bsp
    • Compatibility: 100l gs sectional control valve
    • Function: pump inlet and adjustable system relief
    • Relief range (typical): 60 ; 315 bar adjustable
    Regular price £104.42
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    • Order by 3pm for Next Day Delivery
  • 100L Control Valve Motor Spool (Type 2)
    Regular price £34.18
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    100L Control Valve Motor Spool (Type 2)

    Key Features

    • Spool type: motor spool (type 2)
    • Compatibility: 100l gs sectional working section
    • Spool diameter (family): 20 mm interchangeable spools
    • Intended use: bidirectional hydraulic motor control
    • Options: kits for detent ; stroke limiters ; auxiliary valves
    Regular price £34.18
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    • Order by 3pm for Next Day Delivery
  • 100L Control Valve Right Inlet Section 3/4" Type ( Type BC) - Approved Hydraulics Limited
    Regular price £78.30
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    100L Control Valve Right Inlet Section 3/4" Type ( Type BC)

    Key Features

    • Section: right inlet section . type bc
    • Ports: 3/4" bsp
    • Function: supply inlet with main relief valve cavity
    • Compatibility: 100l gs sectional systems
    • Orientation: right hand inlet configuration
    Regular price £78.30
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    • Order by 3pm for Next Day Delivery
  • 100L Control Valve Single Acting  Spool on A Port (Type 3) B Port Plugged - Approved Hydraulics Limited
    Regular price £32.05
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    100L Control Valve Single Acting Spool on A Port (Type 3) B Port Plugged

    Key Features

    • Spool type: single acting type 3 . a port active ; b port plugged
    • Positions: 3 position ; spring return to neutral
    • Use: single acting cylinders
    • Compatibility: 100l valve family
    • Note: pair with correct spring kit as specified
    Regular price £32.05
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 100L Control Valve Single Acting  Sppol on B Port  (Type 4) A Port Plugged
    Regular price £32.05
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    • Delivery to UK & Ireland

    100L Control Valve Single Acting Sppol on B Port (Type 4) A Port Plugged

    Key Features

    • Spool type: single acting type 4 . b port active ; a port plugged
    • Positions: 3 position ; spring return to neutral
    • Use: single acting cylinders
    • Compatibility: 100l valve family
    • Note: fit correct single acting spring kit for operation
    Regular price £32.05
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 100L Control Valve Tie Rod Kit - 1Bank (4 Rods / kit) M10x1.5 x 148mm long
    Regular price £21.79
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    100L Control Valve Tie Rod Kit - 1Bank (4 Rods / kit) M10x1.5 x 148mm long

    Key Features

    • Kit: tie rods for 1 bank assembly . 4 rods per kit
    • Thread: m10x1.5
    • Rod length: 148 mm
    • Compatibility: 100l gs sectional valves
    • Function: clamps sections and endplates together
    Regular price £21.79
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 100L Control Valve Tie Rod Kit - 2 Bank (4 Rods / kit) M10x1.5 x 193mm long
    Regular price £25.54
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    • Delivery to UK & Ireland

    100L Control Valve Tie Rod Kit - 2 Bank (4 Rods / kit) M10x1.5 x 193mm long

    Key Features

    • Kit: tie rods for 2 bank assembly . 4 rods per kit
    • Thread: m10x1.5
    • Rod length: 193 mm
    • Compatibility: 100l gs sectional valves
    • Function: clamps sections and endplates together
    Regular price £25.54
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Out of Stock
    100L Control Valve Tie Rod Kit - 3 Bank (4 Rods / kit) M10x1.5 x 238mm long - Approved Hydraulics Limited
    Regular price £29.78
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    100L Control Valve Tie Rod Kit - 3 Bank (4 Rods / kit) M10x1.5 x 238mm long

    Key Features

    • Kit: tie rods for 3 bank assembly . 4 rods per kit
    • Thread: m10x1.5
    • Rod length: 238 mm
    • Compatibility: 100l gs sectional valves
    • Function: clamps sections and endplates together
    Regular price £29.78
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 100L Control Valve Tie Rod Kit - 4 Bank (4 Rods / kit)  M10x1.5 x 283mm long - Approved Hydraulics Limited
    Regular price £29.89
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    • Delivery to UK & Ireland

    100L Control Valve Tie Rod Kit - 4 Bank (4 Rods / kit) M10x1.5 x 283mm long

    Key Features

    • Kit: tie rods for 4 bank assembly . 4 rods per kit
    • Thread: m10x1.5
    • Rod length: 283 mm
    • Compatibility: 100l gs sectional valves
    • Function: clamps sections and endplates together
    Regular price £29.89
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 100L Control Valve Tie Rod Kit - 5 Bank (4 Rods / kit)  M10x1.5 x 328mm long
    Regular price £24.58
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    • Delivery to UK & Ireland

    100L Control Valve Tie Rod Kit - 5 Bank (4 Rods / kit) M10x1.5 x 328mm long

    Key Features

    • Kit: tie rods for 5 bank assembly . 4 rods per kit
    • Thread: m10x1.5
    • Rod length: 328 mm
    • Compatibility: 100l gs sectional valves
    • Function: clamps sections and endplates together
    Regular price £24.58
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 100L Control Valve Tie Rod Kit - 6 Bank (4 Rods / kit) M10x1.5 373mm long
    Regular price £24.58
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    • Delivery to UK & Ireland

    100L Control Valve Tie Rod Kit - 6 Bank (4 Rods / kit) M10x1.5 373mm long

    Key Features

    • Kit: tie rods for 6 bank assembly . 4 rods per kit
    • Thread: m10x1.5
    • Rod length: 373 mm
    • Compatibility: 100l gs sectional valves
    • Function: clamps sections and endplates together
    Regular price £24.58
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

All for Professional Hydraulic Applications

Discover quality all from Approved Hydraulics, trusted by professionals across construction, transport, forestry, agriculture and industrial sectors. Built for demanding working environments, our range offers dependable performance, durable construction and trusted reliability. Whether you are replacing existing parts or specifying components for a new build, our experienced team can help you find the right product. With fast UK delivery and expert technical support, Approved Hydraulics supplies hydraulic equipment you can rely on.

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.