• Baltrotors BR3 Link - Approved Hydraulics
    Regular price From £558.67
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    BR3 Link

    Key Features

    • Type: link (no brake) for 12–16 t rotators
    • Max load: 16 t
    • Upper connection: eye; 80 or 100 mm width options
    • Lower connection: fork; 30–45 mm pin options
    • Service: grease at 8‑hour intervals
    Regular price From £558.67
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  • Baltrotors BR2 Link - Approved Hydraulics
    Regular price From £415.01
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    BR2 Link

    Key Features

    • Type: link (no brake) heavy class
    • Max load: 10 t
    • Upper connection: eye 80 mm; 30–45 mm pin options
    • Lower connection: eye 35 mm pin
    • Service: grease through nipples; 120 Nm nut torque
    Regular price From £415.01
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  • Baltrotors BR1A Link - Approved Hydraulics
    Regular price £324.08
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    BR1A Link

    Key Features

    • Type: link (no brake) with alternative dimensions
    • Upper connection: eye; sizes 60/70/80 mm
    • Lower connection: fork 30 mm pin
    • Max load: 5.5 t (family)
    • Service: torque locking nut to spec; periodic greasing
    Regular price £324.08
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  • Baltrotors BR1 Link - Approved Hydraulics
    Regular price £324.08
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    BR1 Link

    Key Features

    • Type: link (no brake)
    • Max load: 5.5 t
    • Upper connection: eye (60/70/80 mm widths; 20–45 mm pins)
    • Lower connection: fork 25 mm pin
    • Service: grease every 8 working hours
    Regular price £324.08
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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.

  • Intermercato TVG 1000 Bucket Grab - Approved Hydraulics

    POA

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    TVG 1000 Bucket Grab

    Key Features

    • Type: heavy duty clamshell bucket grab
    • Volume: around 500 litre class (TVG 1000)
    • Frame: extra heavy duty top H frame with ram protection lugs
    • Hydraulics: cylinder with check valve ; independent oil tank per model
    • Edges: reversible toe plates ; wide opening
    • Use: soil ; gravel ; rubble ; loose material loading

    POA

    • Large UK Stock
    • 1 Year Limited Manufacturers Warranty
    • Bespoke Technical Advice
  • Male to Female Pressure Gauge Adapters - Approved Hydraulics Limited
    Regular price From £7.16
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    Male to Female Pressure Gauge Adapters

    Key Features

    • Type: male to female pressure gauge adaptor
    • Thread: bsp
    • Use: connect 1/4 ; 3/8 ; 1/2" gauge threads to system ports
    • Material: plated steel or brass per size
    • Sizes: common sizes stocked ; see options
    Regular price From £7.16
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  • 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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    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
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  • Hydra Part FLOW DIVIDER/COMBINER IN LINE 3/8" BSP In + OUT 6,5-12 lpm - Approved Hydraulics
    Regular price £165.29
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    FLOW DIVIDER/COMBINER 50/50 In line 3/8" BSP In/Out - 6,5-12 LPM

    Key Features

    • Function: 50 ; 50 flow divider ; combiner
    • Porting: 3/8" bsp
    • Flow range: 6;5-12 lpm
    • Accuracy: maintains equal flows within typical tolerance
    • Use: synchronise two actuators ; recombine return flow
    • Mounting: in line
    Regular price £165.29
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  • Hydra Part FLOW DIVIDER/COMBINER 1/2" in 3/8" Inlet Capy. 24-38 LPM - Approved Hydraulics
    Regular price £128.88
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    FLOW DIVIDER/COMBINER 50/50 1/2" in 3/8"out Inlet Capy. 24-38 LPM

    Key Features

    • Function: 50 ; 50 flow divider ; combiner
    • Porting: 1/2" bsp in ; 3/8" bsp out
    • Flow range: 24-38 lpm
    • Accuracy: maintains equal flows within typical tolerance
    • Use: synchronise two actuators ; recombine return flow
    • Mounting: in line
    Regular price £128.88
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  • Hydra Part Double Counterbalance Valve 3/4" In Line - 100-350Bar (Aluminium Body) - Approved Hydraulics
    Regular price £215.21
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    Double Counter Balance / Overcentre Valve 3/4" IN LINE Ally Body 100 - 350 bar

    Key Features

    • Type: double counterbalance ; overcentre valve
    • Port size: 3/4"
    • Adjustment range: 100 to 350 bar
    • Pilot ratio: 1 . 8 ; 4.2 . 1 options
    • Body: aluminium body
    • Function: load holding ; controlled lowering ; relief overpressure
    • Mounting: in line
    • Typical applications: boom ; stabiliser legs ; winch loads
    Regular price £215.21
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  • Hydra Part Double Counterbalance Valve 1/2" In Line - 100-350Bar - Approved Hydraulics
    Regular price £166.96
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    Double Counter Balance / Overcentre Valve 1/2" IN LINE 100-350 bar

    Key Features

    • Type: double counterbalance ; overcentre valve
    • Port size: 1/2"
    • Adjustment range: 100 to 350 bar
    • Pilot ratio: 1 . 8 ; 4.2 . 1 options
    • Body: steel body
    • Function: load holding ; controlled lowering ; relief overpressure
    • Mounting: in line
    • Typical applications: boom ; stabiliser legs ; winch loads
    Regular price £166.96
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  • Hydra Part Double Counterbalance Valve 3/8" In Line - 100-350Bar - Approved Hydraulics
    Regular price £160.18
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    Double Counterbalance Valve 3/8" In Line - 100-350Bar

    Key Features

    • Type: double counterbalance ; overcentre valve
    • Port size: 3/8"
    • Adjustment range: 100 to 350 bar
    • Pilot ratio: 1 . 8 ; 4.2 . 1 options
    • Body: steel body
    • Function: load holding ; controlled lowering ; relief overpressure
    • Mounting: in line
    • Typical applications: boom ; stabiliser legs ; winch loads
    Regular price £160.18
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  • Hydra Part Single Counterbalance Valve 1/2" In Line - 100-350Bar - Approved Hydraulics
    Regular price £75.79
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    Single Counter Balance / Overcentre Valve 1/2" IN LINE Steel Body 100-350 Bar 4.2:1 Pilot Ratio

    Key Features

    • Type: single counterbalance ; overcentre valve
    • Port size: 1/2"
    • Adjustment range: 100 to 350 bar
    • Pilot ratio: 4.2 . 1
    • Body: steel body
    • Function: load holding ; controlled lowering ; relief overpressure
    • Mounting: in line
    • Typical applications: boom ; stabiliser legs ; winch loads
    Regular price £75.79
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  • Single Counter Balance / Overcentre Valve 3/8" IN LINE Steel Body 100-350 Bar 1:8 Pilot Ratio - Approved Hydraulics Limited
    Regular price £108.84
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    Single Counter Balance / Overcentre Valve 3/8" IN LINE Steel Body 100-350 Bar 1:8 Pilot Ratio

    Key Features

    • Type: single counterbalance ; overcentre valve
    • Port size: 3/8"
    • Adjustment range: 100 to 350 bar
    • Pilot ratio: 1 . 8 ; 4.2 . 1 options
    • Body: steel body
    • Function: load holding ; controlled lowering ; relief overpressure
    • Mounting: in line
    • Typical applications: boom ; stabiliser legs ; winch loads
    Regular price £108.84
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    • Delivery to UK & Ireland
    • Order by 3pm for Next Day Delivery
  • Hydra Part 3/4"BSP Dual Cross-over 80Lpm Relief Valve - 130-350Bar - Approved Hydraulics
    Regular price £96.38
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    3/4"BSP Dual Cross-over 80Lpm Relief Valve - 130-350Bar

    Key Features

    • Type: dual cross line relief valve
    • Port size: 3/4"bsp
    • Rated flow: 80 lpm
    • Adjustment range: 130 to 350 bar
    • Function: protects hydraulic motors from shock loads ; cross connected relief
    • Mounting: in line ; flangeable to motor on some models
    • Typical use: omp ; omr ; omh motor protection ; overrunning load control
    Regular price £96.38
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  • Hydra Part 3/8"BSP Dual Cross-over 35Lpm Relief Valve - 100-350Bar - Approved Hydraulics
    Regular price £109.37
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    3/8"BSP Dual Cross-over 35Lpm Relief Valve - 100-350Bar

    Key Features

    • Type: dual cross line relief valve
    • Port size: 3/8"bsp
    • Rated flow: 35 lpm
    • Adjustment range: 100 to 350 bar
    • Function: protects hydraulic motors from shock loads ; cross connected relief
    • Mounting: in line ; flangeable to motor on some models
    • Typical use: omp ; omr ; omh motor protection ; overrunning load control
    Regular price £109.37
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  • Hydra Part SV80 Sequence Valve 3/4" Bsp - 80Lpm - 100-350 Bar - Approved Hydraulics
    Regular price £90.62
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    SV80 Sequence Valve 3/4" Bsp - 80Lpm - 100-350 Bar

    Key Features

    • Type: hydraulic sequence valve ; direct acting
    • Port size: 3/4" bsp
    • Rated flow: 80 lpm
    • Pressure setting: 100 to 350 bar
    • Function: opens secondary circuit after set pressure reached
    • Mounting: in line
    • Applications: dual actuator sequencing ; clamp then work
    Regular price £90.62
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  • Hydra Part High Pressure Carry Over for Z50/Z80 Valve - Approved Hydraulics
    Regular price £11.09
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    High Pressure Carry Over for Z50/Z80 Valve

    Key Features

    • Accessory: high pressure carry over ; power beyond sleeve
    • Compatibility: z50 ; z80 monoblock valves
    • Use: enables downstream circuits ; converts open centre to power beyond
    • Installation: fits in end section kit ; see valve data sheet
    • Working pressure: as per base valve rating ; up to 250 bar typical
    • Notes: requires appropriate return to tank path for excess flow
    Regular price £11.09
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  • Hydra Part Inline Pressure Relief Valve 3/4" Bsp 80Lpm 350 Bar Max - Approved Hydraulics
    Regular price From £68.51
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    Inline Pressure Relief Valves 3/4" BSP

    Key Features

    • Port size: 3/4\" bsp
    • Max flow: 80 lpm
    • Pressure range: 100 to 350 bar
    • Function: inline pressure relief ; system overpressure protection
    • Mounting: in line valve body
    Regular price From £68.51
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  • Hydra Part CETOP 5 Modular Flow Control Valve on A&B (Z2FDS-10-30-S) - Approved Hydraulics
    Regular price £77.32
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    CETOP 5 Modular Flow Control Valve on A&B (Z2FDS-10-30-S)

    Key Features

    • Interface: iso 4401-05 cetop 5 ng10
    • Function: double throttle ; check meter-in or meter-out on a ; b
    • Max operating pressure: 315 bar
    • Max flow: 160 lpm
    • Temperature: -30 c to +80 c
    Regular price £77.32
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  • Hydra Part CETOP 5 Pressure Reducing Module - A to T (ZPR-10-D-A-1-210-YM) - Approved Hydraulics
    Regular price £153.94
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    CETOP 5 Pressure Reducing Module - A to T (ZPR-10-D-A-1-210-YM)

    Key Features

    • Interface: iso 4401-05 cetop 5 ng10
    • Function: pressure reducing module a to t
    • Max operating pressure: 315 bar
    • Secondary pressure: 210 bar
    • Max flow: 60 lpm
    • Temperature: -20 c to +80 c
    Regular price £153.94
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  • CETOP 3 Aluminium Manifolds - P & T 1/2" - A & B 3/8" - Approved Hydraulics Limited
    Regular price From £41.57
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    CETOP 3 Aluminium Manifolds - P & T 1/2" - A & B 3/8"

    Key Features

    • Interface: iso 4401-03 cetop 3
    • Ports: p ; t 1/2\" ; a ; b 3/8\"
    • Max flow: 40 lpm
    • Max pressure: 315 bar
    • Type: aluminium manifold ; subplate
    Regular price From £41.57
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  • Z80 1/2" Solenoid Control Valves 80LPM 12/24VDC - Approved Hydraulics Limited
    Regular price From £207.30
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    Z80 1/2" Solenoid Control Valves 80LPM 12/24VDC

    Key Features

    • Port size: 1/2\" bsp
    • Nominal flow: 80 lpm
    • Supply voltage: 12 vdc ; 24 vdc
    • Configuration: direct acting solenoid control ; monoblock
    • Banks: up to 6 sections
    • Carry over: high pressure carry over option
    Regular price From £207.30
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  • Standard 45L Lever Operated Monoblock Valves (3/8"BSP) (1-6 levers) - Approved Hydraulics Limited
    Regular price From £80.74
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    Standard 45L Lever Operated Monoblock Valves (3/8"BSP) (1-6 levers)

    Key Features

    • Ports: 3/8\" bsp p ; a ; b ; t
    • Nominal flow: 45 lpm ; 65 lpm max
    • Max operating pressure: 315 bar
    • Spools: double acting ; spring return to neutral
    • Carry over: hp carry over port optional
    • Banks: 1 to 6 levers
    • Options: single acting ; motor ; float spools ; detents
    Regular price From £80.74
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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.