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Hydraulic Rotators & Links
Worm Drives Units & Rotary Manifolds
Excavator Attachments
Forestry & Truck Crane Attachments
Rail Attachments
Subsea Attachments
Tractor Attachments
Wireless Weigh Scales
Timber Processing
Mining & Quarry
Directional Control Valves
Line Mounted Valves
Hydraulic Cylinders
Hydraulic Pumps
Hydraulic Motors
Power Packs
PTO Equipment
Remote Controls
All Other Equipment
Hose Fittings & Adaptors
Quick Release Couplings
Nuts, Bolts and Washers
1-1/2" Bonded seal
Key Features
3/4 Bonded seal
1/4 Bonded seal
M18 Dowty Washer
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.
1/2 Bonded seal
1" Bonded seal
1" BSP Coned Blanking Plug
Rotary Shaft seal 17x30x7 R23 High Pressure
Grease Nipple 1/8 BSP
M8 Clevis With 8mm Pin
3/8 Bonded seal
1/8" BSPP Male Blank Plug with O-ring Seal
Male to Female Pressure Gauge Adapters
90º Rotary Swivel Joint
1" Quick Release Coupling (Screw Type, Female)
3/4" Port, 90°, 4 Hole, 40mm PCD, Female Gear Pump Adaptors
3/8" Port, 90°, 3 Hole, 30mm PCD, Female Gear Pump Adaptor
3/8" Port, Straight, 30mm PCD, Female Gear Pump Adaptor
1/2" Port, 90°, 3 Hole, 30mm PCD, Female Gear Pump Adaptors
1/2" Port, 90°, 3 Hole, 40mm PCD, Female Gear Pump Adaptors
1/2" Port, 90°, 4 Hole, 40mm PCD, Female Gear Pump Adaptors
1/2" Port, Straight, 40mm PCD, Female Gear Pump Adaptors
3/4" Port, 90°, 3 Hole, 40mm PCD, Female Gear Pump Adaptors
1" Port, 90°, 3 Hole, 51mm PCD, Female Gear Pump Adaptors
To ensure that you enjoy the best possible performance from your hydraulic system, you must invest in hydraulic fittings that match the high quality of your PTO equipment. Here at Approved Hydraulics, we stock a superb selection of hydraulic adaptors, ensuring that no box is left unticked when it comes to delivering the best results.
To achieve optimum performance from your hydraulic system, you must invest in high-quality components across the board. We offer a vast selection of quality hydraulic fittings at Approved Hydraulics that will connect the likes of control valves and pumps in your system to deliver peak performance.
With our selection of premium hydraulic adapters from trusted industry-leading manufacturers, Hydra Part, you can connect the hoses, pipes and tubes of your hydraulic system, safe in the knowledge that they’re secure, water-tight and safely delivering hydraulic fluid.
Among our stock of hydraulic fittings and adaptors, you’ll discover everything from joints to couplings and more, all manufactured from premium products and built to last. For additional products, please browse our full range of PTO equipment.
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.
