Hydraulic circuit diagram

Fig. 4. Hydraulic circuit diagram of a lead pipe press with tlirect pump drive...

Fig. 43. Hydraulic circuit diagram ol a vertical lead cable press with direct jnimp drive, as per Fig. 27...

Fig. 72 shows the hydraulic circuit diagram of an extrusion press operated from a pressure water accumulator. The press has separate controls for the piercing- and main cylinders. When w orking without piercer, the control lever of the piercer control is set to return. When the lever of the main control is shifted to advance, the filling water flows from the air-vessel through the filler valve into the main cylinder and through... 

Fig. 82 illustrates the hydraulic circuit diagram of an oil-hydraulic extrusion press operated by a variable-delivery pump (see p. 212). The control stand accommodates a hand-wheel connected linkage which sets the press to advance or return, as well as two rotary slide valves which serve to lock and shift the die-carrier with the die. The linkage acts on a servo-control (see p. 215), which is arranged directly at the pump the servo-control is connected to a geared pump, also called pilot pressure pump. 

Fig. 82. Hydraulic circuit diagram of an oil-hj draulic extrusion press...

The operation of a tube extrusion press as per Fig. 89, may be followed best by reference to a hydraulic circuit diagram. Fig. 92. The idle stroke is not performed by an advance piston, but by low-pressure or filling water of relatively high pressure. 

Designing and calculating a control is preceded by the preparation of a hydraulic circuit diagram, based on the rule that one inlet- and one outlet valve each or one double-acting slide-valve each is required for one reciprocal motion of the plunger. Consequently, a four-valve control is to be provided for the advance and return motion or the up-and-down motion of the piston of a horizontal or vertical press respectively. Examples of this are the controls for the press and the die-carrier shifting device, illustrated in Fig. 92. 

A simplified diagram of the hydraulic circuit is shown in Fig. 10.4. When the direction-reversing valve A is in the position shown, the sUding valve B moves to the right This allows hydraulic fluid into the left of the table cylinder which is attached to the saddle. The fluid moves the piston, and the table attached to it, to the right... 

A simplified diagram of the hydraulic circuit is shown in Fig. 10.4. When the direction-reversing valve A is in the position shown, the sliding valve... 

Figure 24 An equivalent circuit analysis of a cascade electro-osmotic micropump (a) a sketch of the micropump, consisting of 10 narrow channels in parallel followed by a single wide channel in series, and (b) the equivalent circuit diagram for calculation of the hydraulic resistance of single stage of a micropump consisting of two wide channels and one multichannel combination of the micropump...

Detecting transducers at the measuring points are electrical, pneumatic, or hydraulic. The resultant circuits and sequences can be seen from the typical functional diagram in Figure 4-34. An emergency shutdown immediately triggers the following operations ... 

A simplified schematic diagram of the KALIMER NPP is presented in Fig. XX-1. This figure also specifies the major thermal-hydraulic parameters in circuits. 

Other markings, such as information about the course of the cooling circuits, the power supply, or the movements of the slider and core pullers (hydraulic diagrams) facilitate mold handling (Figures 5.49 and 5.50). 

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