Industrial Fluid power ppt for Ifp ch. no. 2 hydraulic valves, actuators and accessories, By Prof. Kokare A.Y. Lecturer at Babasaheb phadtare polytechnic, Kalamb-Walchandnagar.

1. Subject:- Industrial Fluid Power (IFP)
CHAPTER NO: 02
HYDRAULIC VALVES, ACTUATORS AND
ACCESSORIES (24 Marks (18)
BY
Prof. Kokare A.Y.
BABASAHEB PHADTARE POLYTECHNICKALAMB-WALCHANDNAGAR.
B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

2. a) According to function:
1. Pressure control valves:
Relief valve Reducing valve Unloading valve
Counter balanced valve Sequence valve .
2. Direction control valve:
check valve 2/2 valve 3/2 valve 4/2 valve
4/3 valve 5/2 valve.
3. Flow control valve :
Fixed restriction FCV Variable restriction FCV
FCV with Reverse free flow Pressure compensated
valve
Temperature compensated valve Cam operated FCV
B.P.P. Kalamb-Walchandnagar Prof. Kokare
A.Y.

3. b) According to the method actuation:
1. Manual operated:
Palm operated Push button operated
Hand lever operated. Foot pedal
operated Cam(roller) operated
2. Pilot operated:
a.Single pilot b.Double pilot.
3. Solenoid operated:
Single solenoid Double solenoid.
c) According to construction:
1. Poppet type: Ball type, conical poppet type.
2. Spool type: Sliding spool type, rotary spool type.
3. Flow control : Gate valve, plug valve, needle valve, poppet
valve, butterfly valve etc.
B.P.P. Kalamb-Walchandnagar Prof. Kokare
A.Y.

4. 1. Flow rate of oil.
2. Pressure of oil.
3. Force required by cylinder.
4. Speed of operation of cylinder
5. Type of actuation of the valve.
6. Port size.
7. Space requirement.
8. Temperature of oil
9. Oil under pressure compatibility.
10.Environment conditions.
B.P.P. Kalamb-Walchandnagar Prof. Kokare
A.Y.

5. Pressure Relief Valve Pressure Reducing Valve
B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.
Pressure Relief Valves.mp4
Pressure Reducing Valve- Pilot Operated.mp4

6. Comparison between Pressure Relief Valve and Pressure
Reducing Valve
B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

7. Unloading Valve
B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.
Unloading Valve Basics.mp4

8. Comparison between Pressure Relief Valve and
Unloading Valve
B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

9. Counter Balance Valve Sequence Valve
B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.

10. a) According to the method actuation:
1. Manual operated:
Palm operated Push button operated
Hand lever operated. Foot pedal operated Cam(roller)
operated
2. Pilot operated:
a.Single pilot b.Double pilot.
3. Solenoid operated:
Single solenoid Double solenoid.
b) According to ype of spool:
1. Poppet type.
2. Sliding Spool type.
3. Rotary spool type.
a)According to number of ports and position:
check valve 2/2 valve 3/2 valve 4/2 valve
4/3 valve 5/2 valve.
B.P.P. Kalamb-Walchandnagar Prof. Kokare
A.Y.

11. Check Valve
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Check Valve Animation.mp4

12. Sliding Spool type 2/2 DCV Rotary Spool type 2/2 DCV
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
2/2 Direction Control Valve

13. Sliding Spool type 3/2 DCV Rotary Spool type 3/2 DCV
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
3/2 Direction Control Valve
using a 3 2 valve NO to control a cylinder.mp4

14. Sliding Spool type 4/2 DCV Rotary Spool type 4/2 DCV
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
4/2 Direction Control Valve
4-2 Directional control valve.mp4 rotary spool directional valves work.mp4

15. Sliding Spool type 4/3 DCV Rotary Spool type 4/3 DCV
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
4/3 Direction Control Valve
4-3 Directional control valve.mp4

16. Sliding Spool type 5/2 DCV Rotary Spool type 5/2 DCV
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
5/2 Direction Control Valve
5 2 valve .mp4

17. Method of Actuation and there Symbol
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.

18. Variable Restriction FCV
FCV with Reverse Free
Flow
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Flow Control Valve
Fixed Restriction FCV
Flow control valves work.mp4

19. Pressure & Temp.
Compensated FCV
Cam operated FCV with
integral check valve
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Pressure Compensated Valve - Part 2.mp4
Camshaft _ Valve Animation .mp4

20. 1.Time Delay Valve 2. Shuttle Valve
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Special Type Valves
Shuttle valve .mp4

21. 3.Twin Pressure Valve 4. Pilot Operated check
valve (Open & Closed)
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Special Type Valves
Pilot Operated Relief Valve Animation.mp4

22. 3/2 Poppet type Direction
Control Valve
Comparison
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.

23. Classification of Actuators 2. Rotating Cylinder
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.

24. Single acting cylinder Double acting cylinder
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Single Acting Cylinder.mp4
Double Acting Cylinder.mp4

25. Diaphragm cylinder Double rod end cylinder
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Diaphragm Cylinder.mp4

26. Tandem cylinder Cylinder with cushioning
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Tandem Cylinder .mp4

27. Telescope cylinder Cylinder Mountings
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Telescopic cylinder 2.mp4

28. A) Vane type
B) Piston type (Rack and
pinion type
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Rotary Actuators
Piston type Actuator.mp4Vane Actuator.wmv.mp4

29. External Gear Motor Radial Piston Motor
B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.
EXTERNAL GEAR PUMP.mp4
Internal Gear Pump.3gp

30. Gerotor Motor Vane type Motor
B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.
Gerotor Operation.mp4

31. Axial Piston Motor
B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.
SWASH PLATE PISTON PUMP .mp4

32. Flexible Hose
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.

33. a) Rigid pipe:
Cast iron, Low carbon steel, Alloy steels, stainless
steel, Copper and its alloy, Aluminum and its alloy.
b) Flexible hoses :
Nylon braided hoses, steel wire reinforced rubber
hoses, poly-urethene tubes, Nylon tubes, polyethylene
tubes, PVC tubes, polypropylene etc.
a)According to strength:
Standard pipe (STD), Extra strong pipe(XS),
Double Extra strong Pipe (XXS).
B.P.P. Kalamb-Walchandnagar Prof. Kokare
A.Y.

34. Flare-Less type fitting (Ferrule fitting)
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.

35. a) According to method of sealing:
1. Positive seal: perfect seal, 100 % leak proof.
2. Non- positive seal: allow small amount of leakage.
b) According to application:
1. Steel seal : used between mating parts having no
relative motion.
E.g. sealing between flange, gasket etc.
2. Dynamic seal: used between mating parts with relative
motion.
E.g. rotary motion seal between pump shaft and casing.
a)According to shape configuration:
O-ring, quad-ring, T-ring, V-ring, U-cap, Hat ring etc.
B.P.P. Kalamb-Walchandnagar Prof. Kokare
A.Y.

36. Following are the reason for failure of hydraulic seals.
Excessive heat.
Excessive load.
Excessive clearance.
Excessive pressure.
Improper fitting.
Improper groove gravity.
Improper filter rating.
Contamination of fluid.
Idle storage of seals
Age hardening.
Abrasion.
B.P.P. Kalamb-Walchandnagar Prof. Kokare
A.Y.

37. A) Dead weight accumulator
B) Spring loaded
accumulator
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Classification of accumulators:
C) Separator type accumulator

38. B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Accumulators: Circuit

39. A) Single acting Booster B) Double acting Booster
B.P.P. Kalamb-Walchandnagar Prof.
Kokare A.Y.
Pressure Boosters:

40. Thank youThank you
B.P.P. Kalamb-Walchandnagar Prof. Kokare A.Y.