• ADMISSION CONNECTOR 1 1/4'' PIPE 2'' ELBOW - Approved Hydraulics Limited
    Regular price £51.65
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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 £51.65
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    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 1" PIPE 1"1/4 ELBOW 45º
    Regular price £30.20
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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 £30.20
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 1" PIPE 2" ELBOW 45º - Approved Hydraulics Limited
    Regular price £44.40
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    ADMISSION CONNECTOR 1" PIPE 2" ELBOW 45º

    Key Features

    • Connections: 1" pipe to 2" elbow
    • Elbow angle: 45°
    • Intended use: pump admission / suction line
    • Design: angled elbow helps minimise inlet pressure drop
    • Compatibility: ABER pump suction fittings
    Regular price £44.40
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    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 1" PIPE THREAD TO  2" STRAIGHT HOSE TAIL
    Regular price £24.34
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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 £24.34
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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.

  • ADMISSION CONNECTOR 1"1/2 PIPE 2" ELBOW 45º
    Regular price £39.71
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    • Delivery to UK & Ireland

    ADMISSION CONNECTOR 1"1/2 PIPE 2" ELBOW 45º

    Key Features

    • Connections: 1 1/2" pipe to 2" elbow
    • Elbow angle: 45°
    • Intended use: pump admission / suction line
    • Design: swept elbow to minimise pressure loss
    • Category: ABER pump spares / suction fittings
    Regular price £39.71
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 1"1/4 PIPE 1"1/2 ELBOW 90º - Approved Hydraulics Limited
    Regular price £41.45
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    ADMISSION CONNECTOR 1"1/4 PIPE 1"1/2 ELBOW 90º

    Key Features

    • Connections: 1 1/4" pipe to 1 1/2" elbow
    • Elbow angle: 90°
    • Intended use: pump admission/suction line
    • Construction: steel connector (pump spares)
    • Compatibility: ABER bent‑axis / gear pump inlets
    Regular price £41.45
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 1"1/4 PIPE 2" ELBOW 45º
    Regular price £43.25
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    • Delivery to UK & Ireland

    ADMISSION CONNECTOR 1"1/4 PIPE 2" ELBOW 45º

    Key Features

    • Connections: 1 1/4" pipe to 2" elbow
    • Elbow angle: 45°
    • Intended use: pump admission / suction line
    • Design: angled elbow aids routing in confined spaces
    • Compatibility: ABER pump suction fittings
    Regular price £43.25
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 1'' PIPE 1'' 1/2 ELBOW 90º
    Regular price £35.74
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    ADMISSION CONNECTOR 1'' PIPE 1'' 1/2 ELBOW 90º

    Key Features

    • Connections: 1" pipe to 1 1/2" elbow
    • Elbow angle: 90°
    • Intended use: pump admission / suction side connection
    • Design: tight 90° elbow for compact routing
    • Compatibility: ABER pump suction fittings
    Regular price £35.74
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 1'' PIPE 2'' ELBOW 90º
    Regular price £39.22
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    • Delivery to UK & Ireland

    ADMISSION CONNECTOR 1'' PIPE 2'' ELBOW 90º

    Key Features

    • Connections: 1" pipe to 2" elbow
    • Elbow angle: 90°
    • Intended use: pump admission / suction line
    • Form: elbow connector
    • Design: smooth radius to reduce inlet pressure loss
    • Compatibility: ABER pump suction fittings
    Regular price £39.22
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 1''1/4 PIPE 1''1/2 ELBOW 45º - Approved Hydraulics Limited
    Regular price £42.04
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    • Delivery to UK & Ireland

    ADMISSION CONNECTOR 1''1/4 PIPE 1''1/2 ELBOW 45º

    Key Features

    • Connections: 1 1/4" pipe to 1 1/2" elbow
    • Elbow angle: 45°
    • Intended use: pump admission / suction side
    • Design: angled elbow aids routing and reduces inlet losses
    • Application: ABER pump suction fittings
    Regular price £42.04
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 1''1/4 PIPE 1''3/4 ELBOW 90º - Approved Hydraulics Limited
    Regular price £42.90
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    • Delivery to UK & Ireland

    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 £42.90
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 3/4" PIPE 1"1/2 ELBOW 45º - Approved Hydraulics Limited
    Regular price £32.35
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    ADMISSION CONNECTOR 3/4" PIPE 1"1/2 ELBOW 45º

    Key Features

    • Component: pump admission connector
    • Connections: 3/4" pipe to 1 1/2" elbow
    • Elbow angle: 45°
    • Intended use: pump inlet/suction side
    • Design: smooth radius to minimise cavitation risk
    • Compatibility: ABER pump suction fittings
    Regular price £32.35
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 3/4" PIPE 1"1/2 STRAIGHT - Approved Hydraulics Limited
    Regular price £19.74
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    ADMISSION CONNECTOR 3/4" PIPE 1"1/2 STRAIGHT

    Key Features

    • Connections: 3/4" pipe to 1 1/2" straight
    • Type: straight admission/suction connector
    • Intended use: pump inlet / suction line
    • Design: straight-through for minimal restriction
    • Application: ABER pump spares for mobile hydraulics
    Regular price £19.74
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 3/4'' PIPE 1''1/4 ELBOW
    Regular price £35.75
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    • Delivery to UK & Ireland

    ADMISSION CONNECTOR 3/4'' PIPE 1''1/4 ELBOW

    Key Features

    • Connections: 3/4" pipe to 1 1/4" elbow
    • Form: elbow connector
    • Intended use: pump admission/suction side
    • Construction: steel (ABER pump spares)
    • Compatibility: ABER pump inlet fittings
    Regular price £35.75
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • ADMISSION CONNECTOR 3/4'''HOSE 1''''1/4 CURVE 45
    Regular price £34.00
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    • Delivery to UK & Ireland

    ADMISSION CONNECTOR 3/4'''HOSE 1''''1/4 CURVE 45

    Key Features

    • Component: pump admission connector
    • Connections: 3/4" hose to 1 1/4" curved elbow
    • Elbow angle: 45°
    • Intended use: pump inlet/suction side
    • Design: smooth radius to minimise cavitation risk
    • Compatibility: ABER pump suction fittings
    Regular price £34.00
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Agri PTO Gear Box 3:1 Ratio For GP2 pump - QR Female Connection (Max 10 kW) - Approved Hydraulics Limited
    Regular price From £179.58
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    • Delivery to UK & Ireland

    Agri PTO Gear Box 3:1 Ratio For GP2 pump - QR Female Connection (Max 10 kW)

    Key Features

    • Ratio: 3.1 overgear
    • Pump group: group 2
    • Input: tractor pto 540 rpm
    • Output: pump speed ~1620 rpm
    • Max power: 10 kw
    • Connection: quick release female input
    • Lubrication: sae 90 oil recommended
    Regular price From £179.58
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Out of Stock
    AGRI PTO Gear Box 3:1 ratio for Group 2 or 3 Pumps - Female Shaft - Approved Hydraulics Limited
    Regular price From £237.66
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    • Delivery to UK & Ireland

    AGRI PTO Gear Box 3:1 ratio for Group 2 or 3 Pumps - Female Shaft

    Key Features

    • Type: agricultural pto overgear
    • Ratio: 3 . 1
    • Pump interface: group 2 ; 3
    • Output shaft: female
    • PTO speed: 540 rpm input ; geared for pump speed
    • Lubrication: sae 90 oil ; check level at 1500 h ; first change 60-80 h
    • Use: connects tractor pto to hydraulic gear pump
    Regular price From £237.66
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • AGRI PTO Gear Box 3:1 ratio for Group 2 or 3 Pumps - Male Shaft - Approved Hydraulics Limited
    Regular price From £203.46
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    • Delivery to UK & Ireland

    AGRI PTO Gear Box 3:1 ratio for Group 2 or 3 Pumps - Male Shaft

    Key Features

    • Function: pto overgear for tractor 540 rpm to pump speed x3
    • Ratio: 1 . 3 increase
    • Pump groups: group 2 ; group 3
    • Lubrication: sae 90 gear oil recommended
    • Typical power: up to 20 to 30 kw depending on model
    Regular price From £203.46
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • AGRI PTO Gear Box 3:1 ratio for Group 2 Pumps - Male Shaft - Approved Hydraulics Limited
    Regular price From £127.08
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    • Delivery to UK & Ireland

    AGRI PTO Gear Box 3:1 ratio for Group 2 Pumps - Male Shaft

    Key Features

    • Type: agricultural pto overgear
    • Ratio: 3 . 1
    • Pump interface: group 2
    • Output shaft: male
    • PTO speed: 540 rpm input ; geared for pump speed
    • Lubrication: sae 90 oil ; check level at 1500 h ; first change 60-80 h
    • Use: connects tractor pto to hydraulic gear pump
    Regular price From £127.08
    • All Items Guaranteed
    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • AH200BG Hydraulic Brick Grab - Approved Hydraulics Limited

    POA

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    AH200BG Hydraulic Brick Grab

    Key Features

    • Certification: fully certified for lifting building packs
    • Safe working load: 2000 kg
    • Compatibility: cranes; forklifts; telehandlers; excavators
    • Application: blocks; bricks; kerbs; slabs
    • Supply: grab only (rotator and link sold separately)

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Hydra Part AH354SG Stump Grinder - Approved Hydraulics

    POA

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    • Delivery to UK & Ireland

    AH354SG Stump Grinder

    Key Features

    • Host machines: excavators 1.5–5 ton; skid steers; wheeled loaders
    • Wheel diameter: 354mm
    • Teeth: 16 replaceable cutters
    • Wheel speed: 1500–3000 rpm
    • Cutting depth: 1200mm max
    • Drive: direct gear motor into heavy duty hub
    • Hydraulics: min flow 33 L/min; min pressure 180 bar
    • Weight: 128kg excluding bracket
    • Use: stump removal; works with tiltrotators

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Hydra Part AH454SG Stump Grinder - Approved Hydraulics

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    AH454SG Stump Grinder

    Key Features

    • Host machines: excavators 5–13 ton; skid steers; wheeled loaders
    • Wheel diameter: 454mm
    • Teeth: 24 replaceable cutters
    • Wheel speed: 1500–2500 rpm
    • Cutting depth: 1200mm max
    • Drive: direct gear motor into heavy duty hub
    • Hydraulics: min flow 60 L/min; min pressure 190 bar
    • Weight: 160kg excluding bracket
    • Use: stump removal; compatible with tiltrotators

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Approved Hydraulics AH469PD Vibrating Post Driver - Approved Hydraulics

    POA

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    AH469PD Vibrating Post Driver

    Key Features

    • Attachment: excavator vibrating post driver
    • Centrifugal force: 45 kn at 50 hz ; amplitude 2.10 mm
    • Reduced force mode: 22 kn at 35 hz ; amplitude 3.75 mm
    • Hydraulic requirement: min 26 lpm @ 166 bar
    • Post sizes: 4" ; 6" ; 9" cups ; bespoke options
    • Weight: 245 kg approx
    • Supplied with: hitch bracket ; hoses ; qr couplers ; spare buffers ; 2 cups

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • AH630CS & AH800CS Cone Splitter Tip (Removeable) - Approved Hydraulics Limited
    Regular price £264.06
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    AH630CS & AH800CS Cone Splitter Tip (Removeable)

    Key Features

    • Compatibility: AH630CS and AH800CS cone splitters
    • Tip: removable hardened penetration tip
    • Service: quick replacement to restore cutting performance
    • Benefit: improves initial bite and splitting efficiency
    • Use: timber splitting and root reduction
    Regular price £264.06
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    • 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.