• ADMISSION CONNECTOR 1" PIPE 1"1/4 ELBOW 45º
    Regular price £28.76
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    ADMISSION CONNECTOR 1" PIPE 1"1/4 ELBOW 45º

    Key Features

    • Component: pump admission connector
    • Connections: 1" pipe to 1 1/4" elbow
    • Elbow angle: 45°
    • Intended use: pump inlet/suction side
    • Design: angled elbow aids routing and reduces inlet losses
    • Compatibility: ABER pump suction fittings
    Regular price £28.76
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  • ADMISSION CONNECTOR 1 1/2" PIPE 1 1/2" ELBOW 45º
    Regular price £47.68
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    ADMISSION CONNECTOR 1 1/2" PIPE 1 1/2" ELBOW 45º

    Key Features

    • Component: pump admission connector
    • Connections: 1 1/2" pipe to 1 1/2" elbow
    • Elbow angle: 45°
    • Intended use: pump inlet/suction side
    • Design: angled elbow aids routing and reduces inlet losses
    • Compatibility: ABER pump suction fittings
    Regular price £47.68
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  • 127mm 2 bolt level gauge with temp M12 - Approved Hydraulics Limited
    Regular price £25.91
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    127mm 2 bolt level gauge with temp M12

    Key Features

    • Part number: LVA20TAPM12S01
    • Gauge length: 127 mm
    • Mounting: 2 bolt level gauge for tank side mounting
    • Temperature port: M12 temperature sensor interface
    • Function: Visual oil level indication plus temperature monitoring
    • Typical use: Hydraulic reservoirs; gearboxes; power pack tanks
    Regular price £25.91
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  • ADMISSION CONNECTOR 1''1/4 PIPE 1''3/4 ELBOW 90º - Approved Hydraulics Limited
    Regular price £40.85
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    ADMISSION CONNECTOR 1''1/4 PIPE 1''3/4 ELBOW 90º

    Key Features

    • Component: pump admission connector
    • Connections: 1 1/4" pipe to 1 3/4" elbow
    • Elbow angle: 90°
    • Intended use: pump inlet/suction side
    • Design: compact elbow for tight installations
    • Compatibility: ABER pump suction fittings
    Regular price £40.85
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  • 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.

  • M5 x 130 Cap head bolt
    Regular price £3.66
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    M5 x 130 Cap head bolt

    Key Features

    • Fastener type: socket cap screw
    • Thread: metric M5
    • Length: 130 mm
    • Drive: internal hex for controlled tightening
    • Use: hydraulic brackets; manifolds; guards
    Regular price £3.66
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  • ADMISSION CONNECTOR 1 1/4'' PIPE 2'' ELBOW
    Regular price £49.19
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    ADMISSION CONNECTOR 1 1/4'' PIPE 2'' ELBOW

    Key Features

    • Component: pump admission connector
    • Connections: 1 1/4" pipe to 2" elbow
    • Elbow angle: 90°
    • Intended use: pump inlet/suction side
    • Design: swept elbow for improved routing
    • Compatibility: ABER pump suction fittings
    Regular price £49.19
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  • ADMISSION CONNECTOR 1" PIPE THREAD TO  2" STRAIGHT HOSE TAIL
    Regular price £23.17
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    ADMISSION CONNECTOR 1" PIPE THREAD TO 2" STRAIGHT HOSE TAIL

    Key Features

    • Component: pump admission connector
    • Connections: 1" pipe thread to 2" straight hose tail
    • Form: straight
    • Intended use: pump inlet/suction side
    • Design: straight-through for minimal restriction
    • Compatibility: ABER pump suction fittings
    Regular price £23.17
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  • ABER ISO (4 BOLTS) PTO TO OUTPUT SHAFT SAE 1100 ADAPTOR, WITH ONE BEARINGS
    Regular price £135.01
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    ABER ISO (4 BOLTS) PTO TO OUTPUT SHAFT SAE 1100 ADAPTOR, WITH ONE BEARINGS

    Key Features

    • Input: ISO 4-bolt / 8-spline PTO
    • Output flange: SAE 1100
    • Support: single bearing
    • Purpose: convert close-coupled PTO to prop-shaft drive
    • Use: lighter-duty cardan shaft applications
    • Note: choose two-bearing versions for higher overhung loads
    Regular price £135.01
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  • BYPASS VALVE TO WORK IN PUMPS OF 80cc/rot; 24 VDC
    Regular price £425.02
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    BYPASS VALVE TO WORK IN PUMPS OF 80cc/rot; 24 VDC

    Key Features

    • Model: BP80H (without relief)
    • Pump size: 80 cc/rotation
    • Solenoid: 24 VDC
    • Pressure class: up to 350 bar (family rating)
    • Function: unloads pump by bypassing to inlet
    • Mounting: bolts to pump end-cap; symmetrical orientation
    • Operation: actuate only at no-load (<20 bar)
    Regular price £425.02
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  • ABER Solenoid Operated Bypass Valve with Relief To Work In Pumps Of 80cc
    Regular price £543.83
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    ABER Solenoid Operated Bypass Valve with Relief To Work In Pumps Of 80cc

    Key Features

    • Model: BPR80H (with relief)
    • Pump size: 80 cc/rotation
    • Solenoid: 24 VDC
    • Pressure class: up to 350 bar (family rating)
    • Function: unloads pump and limits pressure via relief
    • Mounting: bolts to pump end-cap; symmetrical orientation
    • Operation: engage/disengage at no-load (<20 bar)
    Regular price £543.83
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  • Oil Filter Element - FRD08 - 152mm - 25 µm
    Regular price £18.00
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    Oil Filter Element - FRD08 - 152mm - 25 µm

    Key Features

    • Part number: CCDEP04
    • Element type: Hydraulic oil filter element replacement
    • Filtration rating: 25 µm
    • Dimensions: 70 mm OD; 28 mm ID; 130 mm height
    • Filter media: UFI.CELL filter media
    • Weight: 0.25 kg
    • Cross references: Sofima CRE025CV1; UFI ERA32NCD
    • Typical use: Oil filtration in hydraulic circuits to protect pumps and valves
    Regular price £18.00
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  • GASKET FOR VK4029 QUILL SHAFT ADAPTOR
    Regular price £10.80
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    GASKET FOR VK4029 QUILL SHAFT ADAPTOR

    Key Features

    • Compatibility: ABER VK4029 TraXon quill adaptor
    • Role: sealing gasket for adaptor mounting
    • Prevents: oil leakage at PTO adaptor interface
    • Service: replace at each adaptor removal
    • Material: oil-resistant gasket composite
    Regular price £10.80
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  • SPLINED COUPLING OF SERIES 2 - 3 HOLES
    Regular price £26.92
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    SPLINED COUPLING OF SERIES 2 - 3 HOLES

    Key Features

    • Coupling type: splined half-coupling
    • Series: Group 2 (series 2)
    • Mounting: 3-hole pattern
    • Function: torque transfer between pump and drive
    • Material: hardened steel
    • Use: connect group 2 pump to multiplier or motor shaft
    Regular price £26.92
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  • 3 Ways Manual Diverter Valve 3/8", 60 l/min
    Regular price £62.44
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    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
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  • Parker Coil 24VDC for Proportional cartridge GP0130N) 13mm hole x 40mm long 2 pin DIN 43650 - Approved Hydraulics Limited
    Regular price £127.21
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    Parker Coil 24VDC for Proportional cartridge GP0130N) 13mm hole x 40mm long 2 pin DIN 43650

    Key Features

    • Type: solenoid coil for proportional cartridge
    • Voltage: 24 vdc nominal
    • Connector: din 43650 form a 2 pin
    • Core tube: 13 mm bore ; 40 mm length fitment
    • Use: drive proportional cartridge valve operation
    Regular price £127.21
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  • Return Air Filter - 235mm - 25 µm
    Regular price £67.00
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    Return Air Filter - 235mm - 25 µm

    Key Features

    • Part number: FRD09
    • Filter type: Return line filter for hydraulic oil systems
    • Filtration rating: 25 µm mesh
    • Height: 235 mm
    • Connection: 1 in BSP
    • Max working pressure: 3 bar
    • Bypass valve: 1.7 bar ±10 percent
    • Materials: Head and cover aluminium; bowl polyamide
    Regular price £67.00
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  • VACUUM KIT ; 24 VDC
    Regular price £210.28
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    VACUUM KIT ; 24 VDC

    Key Features

    • Type: vacuum actuation kit for PTOs
    • Supply voltage: 24 VDC
    • ABER reference: KVAC24
    • Function: actuates vacuum‑shift PTO engagement
    • Use: vehicle pneumatic/vacuum control systems
    • Alternative: KVAC12 (12 VDC) available
    Regular price £210.28
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  • PTO SCANIA GRS 905 1200NM SHAFT 620 mm; W/SENSOR
    Regular price £1,104.88
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    PTO SCANIA GRS 905 1200NM SHAFT 620 mm; W/SENSOR

    Key Features

    • Gearbox compatibility: Scania GRS905
    • Torque rating: 1200 Nm
    • Shaft length: 620 mm
    • PTO ratio: 1.1;1
    • Control: pneumatic
    • Sensor: included (with sensor)
    • ABER reference: TF10014P series
    Regular price £1,104.88
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  • PTO SCANIA GR875; GR905; GRS895; GRS905; W/SENSOR
    Regular price £574.40
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    PTO SCANIA GR875; GR905; GRS895; GRS905; W/SENSOR

    Key Features

    • Gearbox compatibility: Scania GR875/GR905/GRS895/GRS905
    • Control: pneumatic
    • PTO ratio: 1.1;33
    • Mounting: side‑mount orientation
    • Sensor: included (with sensor)
    • ABER reference: TF10017P series
    Regular price £574.40
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  • ALLISON PTO; CONSTANT DRIVE; FLANGE EN-ISSO; 1:0,74; LEFT ASSEMBLY
    Regular price £832.50
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    ALLISON PTO; CONSTANT DRIVE; FLANGE EN-ISSO; 1:0,74; LEFT ASSEMBLY

    Key Features

    • Transmission compatibility: Allison 10.16P RH (10‑bolt)
    • Control: constant mesh (live drive)
    • PTO ratio: 1.0;74
    • Assembly: left‑side
    • Output: EN (ISO 4‑bolt) flange
    • ABER reference: TF10A74MLEN
    Regular price £832.50
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  • ALLISON PTO; CONSTANT DRIVE; FLANGE EN-ISSO; 1:0,74; RIGHT ASSEMBLY
    Regular price £832.50
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    ALLISON PTO; CONSTANT DRIVE; FLANGE EN-ISSO; 1:0,74; RIGHT ASSEMBLY

    Key Features

    • Transmission compatibility: Allison 10.16P RH (10‑bolt)
    • Control: constant mesh (live drive)
    • PTO ratio: 1.0;74
    • Assembly: right‑side
    • Output: EN (ISO 4‑bolt) flange
    • ABER reference: TF10A74MREN
    Regular price £832.50
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  • PTO MITSUBISHI CANTER MO27S5,MECANICAL
    Regular price £368.58
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    PTO MITSUBISHI CANTER MO27S5,MECANICAL

    Key Features

    • Gearbox compatibility: Mitsubishi Fuso Canter MO27S5
    • Control: mechanical (lever/cable)
    • Mounting: side‑mount using 6‑bolt aperture
    • Pump interface: ISO 4‑bolt/8‑spline
    • Kit contents: studs;nuts;gasket (typical)
    • Power rating: ~20 hp typical
    Regular price £368.58
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  • 1/2" Banjo Bolt c/w 2 x washers
    Regular price £4.72
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    1/2" Banjo Bolt c/w 2 x washers

    Key Features

    • Part number: HP-BJB-12
    • Bolt size: 1/2 in banjo bolt
    • Sealing: Supplied with 2 sealing washers
    • Connection type: Hollow banjo bolt for banjo body fittings
    • Typical use: Hydraulic hose or tube banjo connections; leak tight sealing
    • Installation note: Use washers either side of banjo body and tighten to fitting spec
    Regular price £4.72
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  • 3/8 Banjo Bolt c/w 2 x washers (50mm long ) - Approved Hydraulics Limited
    Regular price £5.29
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    3/8 Banjo Bolt c/w 2 x washers (50mm long )

    Key Features

    • Part number: HP-BJB-38
    • Bolt size: 3/8 in banjo bolt
    • Length: 50 mm
    • Sealing: Supplied with 2 sealing washers
    • Connection type: Hollow banjo bolt for banjo body fittings
    • Typical use: Hydraulic hose or tube banjo connections; compact 90 degree routing
    Regular price £5.29
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    • Order by 3pm for Next Day Delivery

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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.