| Basic
Symbols |
Pumps |
 |
Working Line-Pressure/Return |
 |
Fixed Capacity with one Direction of Flow |
 |
Pilot Control Line- External/Internal Drain Line |
 |
Fixed Capacity with Two Directions of Flow |
 |
Enclosure of two or more functions contained in
one unit |
 |
Variable Capacity (with Undefined Control
Mechanism One Direction of Flow |
 |
Flexible Connection |
 |
Variable Capacity (with Undefined Control
Mechanism Two Directions of Flow |
 |
Pipe Line Junction |
 |
Variable Capacity-Pressure Compensate Pump with
One Direction of Flow |
 |
Crossing -Not Connected |
Motors |
 |
Hydraulic Source of Energy |
 |
Fixed Capacity Uni-Directional Output |
 |
Pneumatic Source of Energy |
 |
Fixed Capacity Bi-Directional Output |
 |
Directions of Flow |
 |
Variable Capacity (with Undefined Control
Mechanism Uni-Directional Output |
 |
Directions of Rotation |
 |
Variable Capacity (with Undefined Control
Mechanism Uni-Directional Output |
 |
Facility for Adjustment of: Spring Pump,
Solenoid,Cylinder, Damping etc. |
Cylinders |
 |
Spring |
 |
Single Acting Spring Return (Pneumatic) |
 |
Restriction to flow Line |
 |
Double Acting-Single Piston Rod (Hydraulic) |
 |
Power Line Plugged |
 |
Double Acting-Double Piston Rod |
 |
Quick Release-Self Sealing Coupling-Connected
(Mechanically opened) |
 |
Double Acting-Fixed Cushion at full area side only |
 |
Coupling-Blocked e.g. Gauge Point |
 |
Double Acting-Fixed Cushioning at both ends |
 |
Rotary Juction-One Connection |
 |
Double Acting-Adjustable Cushioning at both ends
(Pneumatic) |
 |
Rotary Juction-Thre Connections |
 |
Double Acting Telescopic Cylinder |
 |
Rotary Shaft-Uni-directional |
 |
Semi -Rotary Actuator Limited Angle |
 |
Rotary Shaft-Bi-directional |
|
|
 |
Shaft-Detent Held |
|
|
 |
Pivoting Device |
|
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