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Hydraulic Rotators & Links
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Double Acting Hydraulic Power Pack With Starter Solenoid - 1.6kW - 2x Double Acting CETOP - 160bar Preset
Key Features
Double acting manual hand pump (25cc/12cc)
Double Acting Mini Cylinders
Double Acting Pilot Check Valves
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.
Double Counter Balance / Overcentre Valve 1/2" IN LINE 100-350 bar
Double Counter Balance / Overcentre Valve 3/4" IN LINE Ally Body 100 - 350 bar
Double Counterbalance Valve 3/8" In Line - 100-350Bar
Double cross relief valve 60L 1/2 BSPP 210 bar - steel body for OMP or OMR Hydraulic motors
Double Pilot Operated Check Valve VBPDE 3/8"L CMP/FLV
Drag Flails (Trincione Range)
POA
Dual Pilot Operated Check Valve 1/2"BSP In Line - 35Lpm
Dual Pilot Operated Check Valve 1/4"BSP In Line - 20Lpm
Electrical plug for 12/24VDC coils EP3/4 kits
Electrical Swivel (CE Series)
Electro Pneumatic 3/2 valve (N/O) without coil 8EP4 for valve air cylinder manifold kit 30034555
Electro Pneumatic 3/2 valve (N/O) without coil for 8EP3 for direct into cylinder kit (G-S)
Emergency stop button c/w box for RC400
Emmegi Air-Oil Exchanger 100 lpm - 160 lpm - Oil Cooler
Emmegi Air-Oil Exchanger 100 lpm - 160 lpm - Oil Cooler with Relief Valve
Euro Plug 2 Pin To Uk 3 Pin Plug Adapter
Ex-Demo AH900FC Log Cracker
Femac KM 30 (Casappa) Motor Vari Seal For T9 & T13 Flail (Shaft Seal Only)
Femac T1 Rev Range - 1.2T-3.0T
Femac T11 FS & T13FS HF19 Pin
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.
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.
