Радиально-поршневые насосы, нерегулируемые PR4-3X

Description Size 1,60 … 20,00 Component series 3X Maximum operating pressure 700 bar Maximum displacement 19.43 cm³ Features Fixed displacement Self-priming, valve-controlled Long service life due to hydro-dynamically lubricated plain bearings Several pressure ports with different cylinder combinations 14 sizes, favorable grading for perfect device design Product description Assembly The pumps are valve-controlled, self-priming radial piston pumps with fixed displacement. They consist essentially of the housing (1) , eccentric shaft (2) and 3, 5 or 10 pump elements (3) , with suction valve (4) , pressure valve (5) and piston (6) . Suction and displacement procedure The pistons (6) are arranged radially to the eccentric shaft (2) . The hollow piston (6) with the suction valve (4) is guided in a cylinder (7) and pressed onto the eccentric (2) by the spring (8) . The radius of the piston running surface corresponds to the eccentric radius. The cylinder (7) provides sealing against a hemispherical element (9) . In downward movements of the piston (6) , the working space (10) in the cylinder (7) is enlarged. Due to the resulting negative overpressure, the suction valve plate is raised from the sealing lip. Simultaneously, the connection from the suction chamber (12) to the working chamber (10) is realized by means of a radial groove (11) in the eccentric (2) . The working chamber is filled with fluid. In upward movements of the piston (6) , the suction valve (4) is closed and the pressure valve (5) is opened. The fluid now flows to the system via the pressure port (P) . Type code 01 02 03 04 05 06 07 08 09 PR4 – 3X / R * Type 01 Radial piston pump, fixed displacement, maximum pressure 700 bar PR4 Component series 02 Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions) 3X Size NG Pressure rating 03 Size – pressure stage (maximum) 1,60 700 bar 1,60-700 2,00 700 bar 2,00-700 2,50 700 bar 2,50-700 3,15 700 bar 3,15-700 4,00 700 bar 4,00-700 6,30 700 bar 6,30-700 1) 8,00 700 bar 8,00-700 1) 3,15 500 bar 3,15-500 5,00 500 bar 5,00-500 6,30 500 bar 6,30-500 8,00 500 bar 8,00-500 10,00 500 bar 10,00-500 16,00 500 bar 16,00-500 1) 20,00 500 bar 20,00-500 2) Direction of rotation 04 Viewed on drive shaft clockwise R Drive shaft 05 Parallel keyed shaft A Splined shaft 21 x 24, DIN 5481 G Cylindrical shaft with output for mounting an AZPF or AZPFF K Line connection 06 Pipe thread according to ISO 228/1 01 SAE thread to ANSI B1.1 12 Seal material 07 NBR seals M FKM seals V Pressure ports 08 1 Pressure port 01 2 Pressure ports 02 3 Pressure ports 03 5 Pressure ports 08 6 Pressure ports 11 10 Pressure ports 12 Additional details 09 Further details in the plain text * 1) Not available with shaft versions "G" and "K" 2) Not available with shaft versions "K" Design options with multi-circuit pumps The following can be seen from the following schematic representations: the number and position of the pressure ports which cylinders are