• 50L Control Valve High Pressure Carry Over Taper Blanking Plug 1/4" - Approved Hydraulics Limited
    Regular price £2.68
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    50L Control Valve High Pressure Carry Over Taper Blanking Plug 1/4"

    Key Features

    • Feature: high pressure carry over ; power beyond adapter
    • Compatibility: 50l monoblock valve
    • Port size: 1/4"
    • Use: feeds downstream valves while maintaining upstream relief
    • Install: replaces blanking plug in outlet cavity
    Regular price £2.68
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 80L - 100L- 150L - 240L  - RPHT fixed port relief 210 bar
    Regular price £32.48
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    80L - 100L- 150L - 240L - RPHT fixed port relief 210 bar

    Key Features

    • Part number: 300502210
    • Valve type: RPHT fixed port relief valve
    • Pressure setting: 210 bar
    • Compatibility: 80L; 100L; 150L; 240L valve families
    • Function: Limits maximum system pressure by relieving to tank
    • Typical use: Overpressure protection for pumps; hoses; and valve blocks
    Regular price £32.48
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 90LS & 90L Single Microswitch Kit  (Req's switch N/O 30075320 or N/C 20010687 extra as needed - Not included)
    Regular price £61.56
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    90LS & 90L Single Microswitch Kit (Req's switch N/O 30075320 or N/C 20010687 extra as needed - Not included)

    Key Features

    • Part number: 30075562
    • Compatibility: 90LS; 90L valve families; also 45L; 50L; 80L; 100L; 150L
    • Kit type: Single microswitch mounting kit for control valve
    • Switch required: Requires N/O 30075320 or N/C 20010687 microswitch; not included
    • Function: Provides electrical signal based on spool position or actuation
    • Typical use: Indicators; interlocks; automation on hydraulic control levers
    Regular price £61.56
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Electro Pneumatic 3/2 valve (N/O) without coil for 8EP3 for direct into cylinder kit (G-S) - Approved Hydraulics Limited
    Regular price £12.48
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    • Delivery to UK & Ireland

    Electro Pneumatic 3/2 valve (N/O) without coil for 8EP3 for direct into cylinder kit (G-S)

    Key Features

    • Voltage: 12 vdc
    • Power: 3 w rating
    • Hole: 9 mm through-bore
    • Body length: 30 mm
    • Ingress protection: IP65
    • Duty: 100% ed
    • Use: electro-pneumatic 8EP3/8EP4 valves
    Regular price £12.48
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 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.

  • 12V Elec/Air Solenoid  coil for 8EP3 -4 kit  3W IP65 100% ED - Coil 9mm hole x 30mm long
    Regular price £13.26
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    12V Elec/Air Solenoid coil for 8EP3 -4 kit 3W IP65 100% ED - Coil 9mm hole x 30mm long

    Key Features

    • Voltage: 12 vdc
    • Power: 3 w rating
    • Hole: 9 mm through-bore
    • Body length: 30 mm
    • Ingress protection: IP65
    • Duty: 100% ed
    • Use: electro-pneumatic 8EP3/8EP4 valves
    Regular price £13.26
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 160L 240L M12 Hand Lever - Approved Hydraulics Limited
    Regular price £5.08
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    • Delivery to UK & Ireland

    160L 240L M12 Hand Lever

    Key Features

    • Thread: M10
    • Lever length: mm
    • Grip: black plastic knob
    • Compatibility: 45 l ; 80 l ; 90 l ; 100 l ; 120 l ; 150 l ; 240 l valve families
    • Application: hydraulic component
    Regular price £5.08
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 80L TIE ROD KIT (4 Rods / kit) 4 Bank M8x1.25 257 mm long
    Regular price £16.85
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    • Delivery to UK & Ireland

    80L TIE ROD KIT (4 Rods / kit) 4 Bank M8x1.25 257 mm long

    Key Features

    • Valve family: 80l sectional valve
    • Configuration: 4 bank
    • Rods per kit: 4
    • Thread: m8x1.25
    • Rod length: 257 mm
    • Application: clamp sectional valve stack ; maintain alignment under load
    • Compatibility: tie rod bores in 80l family
    • Variants: 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9 ; 10 ; 11 ; 12 bank options
    Regular price £16.85
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 50L Control Valve Double Acting Spool (Type 1)
    Regular price £28.43
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    • Delivery to UK & Ireland

    50L Control Valve Double Acting Spool (Type 1)

    Key Features

    • Spool: double acting ; 3 positions (type 1)
    • Series: 50 l sectional valve
    • Neutral: A ; B closed in neutral
    • Use: bidirectional cylinder control
    • Application: hydraulic component
    Regular price £28.43
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 50L TIE ROD KIT (3 Rods / kit) 1 Bank  M8x1.25  128mm long
    Regular price £10.32
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    • Delivery to UK & Ireland

    50L TIE ROD KIT (3 Rods / kit) 1 Bank M8x1.25 128mm long

    Key Features

    • Valve family: 50l sectional valve
    • Configuration: 1 bank
    • Rods per kit: 3
    • Thread: m8x1.25
    • Rod length: 128 mm
    • Application: clamp sectional valve stack ; maintain alignment under load
    • Compatibility: tie rod bores in 50l family
    • Variants: 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 bank options
    Regular price £10.32
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 80L TIE ROD KIT (4 Rods / kit) 1 Bank   M8x1.25 134mm long
    Regular price £15.19
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    • Delivery to UK & Ireland

    80L TIE ROD KIT (4 Rods / kit) 1 Bank M8x1.25 134mm long

    Key Features

    • Valve family: 80l sectional valve
    • Configuration: 1 bank
    • Rods per kit: 4
    • Thread: m8x1.25
    • Rod length: 134 mm
    • Application: clamp sectional valve stack ; maintain alignment under load
    • Compatibility: tie rod bores in 80l family
    • Variants: 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9 ; 10 ; 11 ; 12 bank options
    Regular price £15.19
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Electro Pneumatic 3/2 valve (N/O) without coil  8EP4 for valve air cylinder manifold kit 30034555 - Approved Hydraulics Limited
    Regular price £44.75
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    • Delivery to UK & Ireland

    Electro Pneumatic 3/2 valve (N/O) without coil 8EP4 for valve air cylinder manifold kit 30034555

    Key Features

    • Voltage: 12 vdc
    • Power: 3 w rating
    • Hole: 9 mm through-bore
    • Body length: 30 mm
    • Ingress protection: IP65
    • Duty: 100% ed
    • Use: electro-pneumatic 8EP3/8EP4 valves
    Regular price £44.75
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Hand lever 45L -80L-90L-100L-120L-150L-240L M10 Thread x 230mm Long - Black Plastic Handle
    Regular price £6.59
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    Hand lever 45L -80L-90L-100L-120L-150L-240L M10 Thread x 230mm Long - Black Plastic Handle

    Key Features

    • Thread: M10
    • Lever length: 230 mm
    • Grip: black plastic knob
    • Compatibility: 45 l ; 80 l ; 90 l ; 100 l ; 120 l ; 150 l ; 240 l valve families
    • Application: hydraulic component
    Regular price £6.59
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 120L Type 2 Motor Spool
    Regular price £29.28
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    • Delivery to UK & Ireland

    120L Type 2 Motor Spool

    Key Features

    • Spool type: motor spool type 2
    • Series: 120 l monoblock valve
    • Use: hydraulic motor control ; bidirectional
    • Compatibility: fits 120 l body with 3/4" ports
    • Application: hydraulic component
    Regular price £29.28
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 80L TIE ROD KIT (4 Rods / kit) 2 bank M8x1.25 175 mm long
    Regular price £15.19
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    • Delivery to UK & Ireland

    80L TIE ROD KIT (4 Rods / kit) 2 bank M8x1.25 175 mm long

    Key Features

    • Valve family: 80l sectional valve
    • Configuration: 2 bank
    • Rods per kit: 4
    • Thread: m8x1.25
    • Rod length: 175 mm
    • Application: clamp sectional valve stack ; maintain alignment under load
    • Compatibility: tie rod bores in 80l family
    • Variants: 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9 ; 10 ; 11 ; 12 bank options
    Regular price £15.19
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Cylinder Seal Kit for Intermercato TG 12, 16, 19, 16 PRO, 16 EG - Approved Hydraulics Limited
    Regular price £2.40
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    • Delivery to UK & Ireland

    50L Spool Seal Kit (1 x spool)

    Key Features

    • For: 50l control valve spool
    • Contents: seals for one spool
    • Purpose: restore sealing ; prevent internal leakage
    • Use: maintenance / overhaul of spool section
    • Application: hydraulic component
    Regular price £2.40
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 1/2" BSP Male x 1/2" BSPT Tapered Adaptor - Approved Hydraulics Limited
    Regular price £3.13
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    • Delivery to UK & Ireland

    1/4" BSP Male x 1/4" BSPT Tapered Adaptor

    Key Features

    • Type: parallel-to-taper adaptor for BSP connections
    • Standards: BSPP (ISO 228) to BSPT (ISO 7) depending on ends
    • Threads: 1/4 to 1/4 BSP
    • Sealing: taper thread seals with thread sealant; parallel with washer/bonded seal
    • Use: connect tapered ports to parallel hose/valve fittings
    Regular price £3.13
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 1/2" BSP Male x 1/2" BSPT Tapered Adaptor - Approved Hydraulics Limited
    Regular price £4.33
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    • Delivery to UK & Ireland

    1/2" BSP Male x 1/2" BSPT Tapered Adaptor

    Key Features

    • Type: parallel-to-taper adaptor for BSP connections
    • Standards: BSPP (ISO 228) to BSPT (ISO 7) depending on ends
    • Threads: 1/2 to 1/2 BSP
    • Sealing: taper thread seals with thread sealant; parallel with washer/bonded seal
    • Use: connect tapered ports to parallel hose/valve fittings
    Regular price £4.33
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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 £7.07
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    • Delivery to UK & Ireland

    1/2" BSP Male x 3/8" BSP Female Swivel Adaptor

    Key Features

    • Type: swivel adaptor (male to female)
    • Threads: 1/2 to 3/8 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 £7.07
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Stabiliser Leg Ram Cylinder Assembly 70 x 50 x 270 Stroke (incl Pilot  Operated Check Valve) - Approved Hydraulics Limited
    Regular price £330.06
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    • Delivery to UK & Ireland

    Stabiliser Leg Ram Cylinder Assembly 70 x 50 x 220 Stroke (incl Pilot Operated Check Valve)

    Key Features

    • Bore x rod x stroke: 70 mm ; 50 mm ; 220 mm
    • Actuation: double acting cylinder
    • Mounting: 4 bolt side plate
    • Rod end: foot plate
    • Valve: pilot operated check valve included
    • Application: stabiliser leg / outrigger
    Regular price £330.06
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 12vDC Coil For Z50 valve 16.3mm Hole x 50mm Long - Approved Hydraulics Limited
    Regular price £24.72
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    • Delivery to UK & Ireland

    12vDC Coil For Z50 valve 16.3mm Hole x 50mm Long

    Key Features

    • Voltage: 12 vdc
    • Bore: 16.3 mm through-hole
    • Body length: 50 mm
    • Duty: 100% ed continuous
    • Connection: din plug style
    • Use: z50 solenoid valves
    Regular price £24.72
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 80L TIE ROD KIT (4 Rods / kit) 10 Bank M8x1.25 508mm long
    Regular price £23.57
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    • Delivery to UK & Ireland

    80L TIE ROD KIT (4 Rods / kit) 10 Bank M8x1.25 508mm long

    Key Features

    • Valve family: 80l sectional valve
    • Configuration: 10 bank
    • Rods per kit: 4
    • Thread: m8x1.25
    • Rod length: 508 mm
    • Application: clamp sectional valve stack ; maintain alignment under load
    • Compatibility: tie rod bores in 80l family
    • Variants: 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9 ; 10 ; 11 ; 12 bank options
    Regular price £23.57
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Grease Nipple 1/8 BSP - Approved Hydraulics Limited
    Regular price £0.78
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    • Delivery to UK & Ireland

    Grease Nipple 1/8 BSP

    Key Features

    • Thread: 1/8 bsp
    • Type: standard zerk lubrication fitting
    • Use: periodic greasing of moving joints
    • Application: hydraulic levers ; linkages ; hinges
    • Application: hydraulic component
    Regular price £0.78
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 3/8" BSP Female x Female x Female Tee - Approved Hydraulics Limited
    Regular price £26.12
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    • Delivery to UK & Ireland

    1/2" BSP Female x Female x Female Tee

    Key Features

    • Type: BSP tee adaptor
    • Connections: three female ports
    • Threads: 1/2 BSP
    • Material: plated carbon steel for hydraulic service
    • Use: split or combine lines; add instruments or auxiliary circuits
    Regular price £26.12
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • 80L TIE ROD KIT (4 Rods / kit) 3 Bank M8x1.25  216 mm long
    Regular price £16.85
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    • Delivery to UK & Ireland

    80L TIE ROD KIT (4 Rods / kit) 3 Bank M8x1.25 216 mm long

    Key Features

    • Valve family: 80l sectional valve
    • Configuration: 3 bank
    • Rods per kit: 4
    • Thread: m8x1.25
    • Rod length: 216 mm
    • Application: clamp sectional valve stack ; maintain alignment under load
    • Compatibility: tie rod bores in 80l family
    • Variants: 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9 ; 10 ; 11 ; 12 bank options
    Regular price £16.85
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery

Google Shopping for Professional Hydraulic Applications

Discover quality google shopping 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.