1. Hydraulic System 09/01/2016 Hyderabad
The Conversion Of Mechanical Energy to Hydraulic energy
by means of group of system compromising of Hydraulic Pump ,
Valves, Actuators is called as Hydraulic System.
09/01/2016
Hyderabad

2. Hydraulic System & Types
A hydraulic drive system is a drive or transmission system that uses pressurized hydraulic fluid to power hydraulic machinery.
The term hydrostatic refers to the transfer of energy from flow and pressure, not from the kinetic energy of the flow.
A hydraulic drive system consists of three parts:-
The generator (e.g. a hydraulic pump), driven by an electric motor, a combustion engine.
Valves (to guide and control the system).
Actuator (e.g. a hydraulic motor or hydraulic cylinder) to drive the machinery.
01/09/2016

3. Hydraulic Tank Specification
A reservoir holding adequate quantity of Hydraulic Oil, energy transfers fluid, which has been
mounted with suitable mounting arrangement.
Here I am considering a 800Ltrs Tank for example:-
Tank Capacity : 800 Ltrs
Return Line Filter : CFR – 630
Suction Strainer : SC3 150
Recommended Hyd. Oil Grade : Hydro System 68 (Servo Make)
01/09/2016

4. Cylinders
Hydraulic cylinders (also called linear hydraulic motors) are mechanical actuators that are used to give a linear force through a linear stroke.
Hydraulic cylinders are able to give pushing and pulling forces of many metric tons with only a simple hydraulic system.
Very simple hydraulic cylinders are used in presses; here, the cylinder consists of a volume in a piece of iron with a plunger pushed in it and sealed with a cover.
By pumping hydraulic fluid in the volume, the plunger is pushed out with a force of plunger- area pressure.
More sophisticated cylinders have a body with end cover, a piston rod, and a Cap End & Rod End.
01/09/2016

5. Mud Pump Specification
A mud pump is a reciprocating piston/plunger device designed to circulate drilling fluid under high pressure , down the drill string. Mud pump is a large reciprocating pump used to circulate the mud (drilling fluid) on a drilling rig.
Here I am considering a 4.5’’ x 5’’ Mud pump for example:-
Bore (Liner) : 115 mm ( 4.5 “)
Stroke : 125 mm ( 5 “)
Max. Rated flow : 500 Lpm
Max. Pressure : 15 kg / cm2
One Kg/CM2 Equals 0.98 Bar
01/09/2016

6. Hydraulic Pump Specification
Here I am considering a L6H14 Pump for example:-
Commonly referred as : L6H14
Make : L & T
Displacement : 28.5cc X 6
Input Speed Minimum : 500 RPM
Rated : 2200 RPM
Max. Working Pressure : 350 Bar
Cont. Working Pressure : 250 Bar
One Cubic Centimeter Equals LPM
01/09/2016

7. Valves Specification
Here I am considering a PVG 120/32, SM 12, SM 18 Valves for example:-
Model Code No : PVG - 120/ Model Code No : SM-12
Make : Sauer Danfoss Make : Rexroth
Maximum Pressure : 250/350 bar Maximum Pressure : 250/350 bar
Maximum Flow(pump side module) : 240 LPM Maximum Flow(pump side module): 70 LPM
Model Code No : SM-18
Make : Rexroth
Maximum Pressure : 250/350 bar
Maximum Flow(pump side module) : 160 LPM
01/09/2016

8. Hydraulic Motor Specification
These are COOLER FAN MOTOR
Here I am considering a M3B018 Motor for example:-
Model : M3B018
Make : VELJAN
Rated flow : 37 Lpm
Rated Pressure : 175 bar
01/09/2016

9. Hydraulic Motor Specification
These are RHGB MOTOR
Here I am considering a OMV 400 Motor for example:-
Model : OMV 400
Make : DANFOSS
Rated flow : 400 CC
Rated Pressure : 200 bar
01/09/2016

10. Mud Pump Motor Specification
Here I am considering a OMS-200 Motor for example:-
Model : OMS-200
Make : Danfoss
Rated flow :
Rated Oil Flow : 75 Lpm
Rated Torque : 50 kg.m
01/09/2016

11. FDP
A fixed-displacement pump has a set flow rate — every stroke of the motor moves the same amount of fluid. Fixed-displacement pumps are
Simple
Relatively inexpensive
Easier to maintain
The simplest type of fixed-displacement pump is the gear pump, in which the hydraulic fluid is pushed by rotating gears. In some models, the gears are sequential; in the quieter and more efficient version, the gears are interlocking. Another common variation is the screw pump, which uses the classic Archimedes screw, which looks much like a drill bit, to move the fluid. They have the advantage of providing a high rate of flow at relatively low pressures.
01/09/2016

12. VDP
In a variable-displacement pump, the flow rate and outlet pressure can be changed as the pump operates. This results in pumps that are
More complex
More expensive
Capable of doing a wider variety of jobs
The most common type of variable-displacement pump is the rotary vane pump, which is a variation of the gear pump in which the ‘gear’ is offset and the ‘cogs’ aren’t fixed, but rather extend and retract as the gear turns, allowing the pump to increase the pressure of the fluid by compacting it as it pushes the fluid through.
01/09/2016

13. Hydraulic Pumps L&T Pump Casapa Pumps Veljan Pump Dowty Pump (LH614)
(T6DCM)
Dowty Pump
(IP 3090)

14. Valves Danfoss Valve Hydro Control Valve Poly Hydro (PVG 120/32)
(SM 12)
Poly Hydro
(DPRH 10 T)

15. Valves
These valves are usually very heavy duty to stand up to high pressures. Some special valves can control the direction of the flow of fluid and act as a control unit for a system.
Classification based on function:
Pressure control valves (PC Valves)
Hold Back Valves(HD Valves)
Direction control valves (DC Valves)
Classification based on method of activation:
Directly operated valve
Pilot operated valve
Manually operated valve
Electrically actuated valve
Open control valve
Servo controlled valves

16. Hydraulic Motors Hydraulic Motor Veljan Motor Danfoss Motor (OMV 400)
(M3B 018)
Danfoss Motor
(OMS 200)

17. Hydraulic Tank

18. SPECIFICATION(Bore X Rod dia X Stroke Length )
Hydraulic Cylinders
FEED CYLINDERS
FEED CYLINDERS
JACK CYLINDERS OR STABILIZERS
MAST RAISING CYLINDERS
BREAK OUT WRENCH
DUMPING CYLINDERS
SLIDING CYLINDERS
ROD CLAMPING CYLINDERS
ROD HANDLER
SPECIFICATION(Bore X Rod dia X Stroke Length )
RIG TYPE
For 15 Feet Rod handling we regularly use
125 X 80 X 2350 mm
DTH/DTHR
140 X 100 X 2350 mm
For 10 Feet Rod & Special Projects like Trolley, CDTH 30, CDTH 50 etc
100 X 63 X 1500 mm
100 X 56 X 1650 mm

19. Thank You. Raghu Rama Krishnan Junior Design Engineer Getech Equipment's International Pvt Ltd Hyderabad Telagana.