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 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
3/8" - 50Lpm - Sectional Valve Spares
1/2" - 80Lpm - Sectional Valve Spares
3/4" - 100Lpm - Sectional Valve Spares
3/4" - 150Lpm -Sectional Valve Spares
1" - 240Lpm -Sectional Valve Spares
50L GS Sectional Control Valve
Key Features
80L GS Sectional Control Valve
100L GS Sectional Control Valve
POA
150L GS Sectional Control Valve
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.
240L GS Sectional Control Valve
Walvoil SD5 - SD6 - SD8 & Hydra Part 45L - 50L & 80L Scanreco Proportional Servo Module Kits
Sectional control valves offer you multi-functional control over hydraulic circuit systems. They’re instrumental as they allow you to add or remove a section as and when required, while the building of valve setups is more efficient and cost-effective. Browse our selection of sectional hydraulic control valves here at Approved Hydraulics.
Our sectional valves are direct alternatives to Walvoil SD5, SD6 and SD8 Valves.
Hydraulic systems require many styles and setups to achieve optimum performance for specific requirements. Understanding exactly which valve is best can be tricky, but sectional control valves will offer you the most flexible option of all control valves.
With the addition of a sectional hydraulic control valve, you’re able to add or remove a section of the valve whenever it’s needed. Additionally, by stocking different sections and gaining the ability to change your setup at will, you’ll find that sectional valves are also highly cost-effective.
At Approved Hydraulics, we have almost 40-years of experience advising on and distributing an extensive range of industry-leading products. With us, you’ll experience a high-quality and dependable supply of goods, including hydraulic cylinders, hydraulic oil tanks, hydraulic motors and brakes.
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.
