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Series 200 Standard Double Acting Hydraulic Cylinders
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CETOP 3 Valves
About
80L Control Valve D/acting spool, 3 posn (A & B closed in neutral) Type 1
Key Features
80L Control Valve Motor Spool (A & B Open In Neutral) Type 2
90º Rotary Swivel Joint
45L & 50L Control Valve 4 Position Detent in posn 3) for spool 5DY Float Spool (G)
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.
CETOP 5 Coil - 24VDC, (31mm Bore x 75mm long)
CETOP 5 Coil - 12VDC, (31mm Bore x 75mm long)
8L Plastic Hydraulic Tank 120mm (DC) Neck Flange
50L Control Valve Double Acting Spool (Type 1)
50L Control Valve Motor Spool (Type 2)
Poppet Check Valve 1" 180Lpm, 280 Bar Max Pressure
45L - 50L Control Valve Dual control connector Kit (8D2) (G-S)
45FW - 45L - 50L Control Valve Relief Valve Cartridge 20 - 315 Bar (G)
HP-50 Kit-Complete Wet Spool Lever Cap For HP50 Control Valve
Hydraulic Oil ISO 46, 5 Litres
32mm B Shaft For MP & MR Motors (ZHE)
1" Straight Keyed Shaft For MP And MR Motors (ZHE)
Oil Level & Temperature Gauge (12mm)
100L Control Valve Tie Rod Kit - 7 Bank (4 Rods / kit) M10x1.5 x 417mm long
150L TIE ROD KIT (4 Rods / kit) 6 Bank M10x1.5 417mm long
150L Control Valve Tie Rod Kit - 5 Bank (4 Rods / kit) M10x1.5 x 366mm long
100L Control Valve Tie Rod Kit - 8 Bank (4 Rods / kit) M10x1.5 x 463 mm long
Top Link Double Pilot Check Valve 1/4"BSP - 25Lpm
MR motor seal kit (ZI)
90L Monobloc Valve Motor Spool Type 2
Discover quality hydra part 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 lever operated monoblock valves, cetop 3 spares, scanreco spares accessories, scanreco 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.