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
1/4 BSPP Double Acting Pilot Check Valve
Key Features
DIN 3/8 BSPP Double Acting Pilot Check Valve - Pipe12
Double Acting Pilot Check Valves
1/2 BSPP Double Cross Relief Valve 50 L/Min 70/350 Bar - Steel Body
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 cross relief valve 60L 1/2 BSPP 210 bar - steel body for OMP or OMR Hydraulic motors
1/2 BSPP Three-Way Flow Control Valve - Pressure Compensated - Exceending Flow To Pressure
1/2-3/8 BSPP Flow Divider 15-40 L/Min - 210 Bar
3/8 BSPP Sequence Valve - 40 L/Min - 70/350 Bar - Steel Body
3/8 BSPP bi-directional flow control valve
1/4 BSPP Bi-Directional Flow Control Valve
BSPP Female Poppet Check Valve - Cracking Pressure 0.5 Bar
BSPP 3 Ports High Pressure Ball Valve
BSPP Single Acting Counterbalance Valves for Open Centre with Steel Body
BSPP Single Acting Counterbalance Valves for Closed Centre with Steel Body
BSPP Double Acting Counterbalance Valve for Open Centre with Steel Body
BSPP Double Acting Counterbalance Valve for Closed Centre with Steel Body
BSPP Double Acting Counterbalance Valve For Open Center upto 350 Bar - Flanged Version - Steel Body
3/8 BSPP Double Acting Counterbalance Valve For Open Centre 350 Bar - Bolt Fitting - Steel Body
Cetop 3 Double Acting Counterbalance Valve For Open Centre - 350bar - Steel Body
3/8 BSPP Male Connection Poppet Check Valve - Cracking Pressure 0.5 Bar
3/8 BSPP Insert Check Valve Poppet Type - Cracking Pressure 0.5 Bar
3/8 BSPP Insert Reverse Check Valve Poppet Type - Cracking Pressure 0.5 Bar
3/8 BSPP Insert Check Valve Ball Type - Cracking Pressure 0.5 Bar
2 Port Manifold For SAE8/2 Cartridge 1/4” BSPP Ports - 350 Bar
Discover quality fluid app hydraulic valves from Approved Hydraulics, trusted by professionals across construction, transport, forestry, agriculture and industrial sectors. Our range includes reliable components and equipment designed for dependable performance, long service life and straightforward installation. 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.
