Your cart is empty
Login / Register in for faster checkout.
Already have an account? Log in
Cart
Shop by product
Hydraulic Rotators & Links
Worm Drives Units & Rotary Manifolds
Excavator & Crane Attachments
Forestry Attachments
Rail Attachments
Demolition 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
Worm Drives & Rotary Manifolds
Oils & Lubricants
Hydraulic Oil Tanks
Stabiliser Pads & Storage Cages
All Other Equipment
Radio Remote Controls
Worm Drives & Hydraulic Rotary Manifolds
80L - 100L-150L - 240L Control Valve Fixed Port Relief/Anti Cav. 140 bar Type RPHT U140
Key Features
150L Control Valve Tie Rod Kit - 5 Bank (4 Rods / kit) M10x1.5 x 366mm long
45L - 50L Control Valve Microswitch Kit (Request NO or NC as needed) (G-S)
80L-100L-150L Control Valve Carry Over Plug 3/8"
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.
45L Monobloc Valve High Pressure carry over plug 3/8 (G-S)
45L Monobloc Valve Motor Spool Type 2 (G)
45L-50L Control Valve Pneumatic Kit (8P) (G)
80L- 90L- 100L - 120L Control Valve Relief Cart 20- 315 BAR
90L - 120L -100L - 120L -150L Control Valve End cap spring kit.
90L - 100L - 120 - 150L Control Valve End Cap
90L Monobloc Valve Motor Spool Type 2
80L-90L-100L-120L-150L control valve Detent Kit (9B) Detent In A Position
80L-90L-100L-120L-150L control valve Detent Kit 10B Detent In B Position
Biodegradable Hydraulic Oil, 205 Litre barrel
POA
1" BSP Spy Eye Level Gauge (Black)
Motor Seal Kits (ZHE Model)
1 1/2" Male/Female Low Pressure Ball Valve
1" Port, 90°, 3 Hole, 51mm PCD, Female Gear Pump Adaptors
1/2" Port, 90°, 4 Hole, 40mm PCD, Female Gear Pump Adaptors
Anti-Clockwise Group 2 Tandem Hydraulic Pumps - Front
CETOP 3 - P Blocked - A&B to T with Manual Lever
CETOP 3 All Ports Connected with Manual Lever
Single Counter Balance / Overcentre Valve 1/2" IN LINE Steel Body 100-350 Bar 4.2:1 Pilot Ratio
Single Counter Balance / Overcentre Valve 3/8" IN LINE Steel Body 100-350 Bar 1:8 Pilot Ratio
Discover quality shop all components 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. Browse related products including control valves, line mounted valves 1, hydraulic cylinders, hydraulic pumps to find the right solution for your hydraulic system. 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.
