PFE-31, PFE-41, PFE-51
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Catalog excerpts

PFE-31, PFE-41, PFE-51 - 1

Vane pumps type PFE-31, PFE-41, PFE-51 fixed displacement - cartridge design PFE-*1 are fixed displacement-twelvevane pumps, ባ ቤ cartridge design with integral hydraulic balancing ብ for high pressure operation, long service life and low noise level. They are available in three different sizes with max displacements up to 44, 85 and 150 cm3/rev and single, multiple or with through-shaft configurations. Mounting flange according to SAE J744 standard. body rotor with vanes balanced plates shaft inlet port outlet port Inlet and outlet ports can be oriented in four different positions to match any installation requirement. Simplified maintenance as the pumping cartridge can be easily replaced. MODEL CODE Fixed displacement vane pump Additional suffix for multiple pumps: X2 = double pump composed of single vane pumps X3 = triple pump composed of single vane pumps Series number Eventual suffix for pumps with through shaft: XA = for coupling one PFE-31 XB = for coupling one PFE-41 (only for PFE-41 and PFE-51) XC = for coupling one PFE-51 (only for PFE-51) XO = with through shaft, without rear flange Note:mulitple pumps are assembled in decreasing order of size. See also tab. A190. Port orientation, see section ‫:ݛ‬ T = standard U, V, W = on request Direction of rotation (viewed from the shaft end): D = clockwise (supplied standard if not otherwise specified) S = counterclockwise Note: PFE are not reversible Drive shaft, see section ‫ ݜ‬and ‫:ݝ‬ cylindrical, keyed for single and multiple pump (only first position) 1 = standard 2 = long version (only for PFE-41 and PFE-51) 3 = for high torque applications splined 5 = for single and multiple pumps (any position) 6 = for single and multiple pumps (only first position) only for PFE-31 7 = for second and third position in multiple pumps and PFE-41 Only for multiple pumps PFEX*: type of second (and third) pump /* Seals material: omit for NBR (mineral oil & water glycol) PE = FPM Speed range Max rpm (2) pressure (1) 160 (1) Max pressure is 160 bar for /PE version and water glycol fluid (2) Max speed is 1800 rpm for /PE versions; 1500 rpm for water glycol fluid (3) Flow rate and power consumption are proportional to the rotation speed, see section ‫ݚ‬

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PFE-31, PFE-41, PFE-51 - 2

MAIN CHARACTERISTICS OF VANE PUMPS TYPE PFE-*1 Installation position Axial and radial loads are not allowed on the shaft. The coupling should be sized to absorb the power peak. Ambient temperature Hydraulic oil as per DIN 51524...535; for other fluids see section ‫ݗ‬ Recommended viscosity max at cold start max at full power during operation min at full power Fluid contamination class Fluid temperature Recommended pressure on inlet port from -0,15 to 1,5 bar for speed up to 1800 rpm; from 0 to +1,5 bar for speed over 1800 rpm DIAGRAMS (based on mineral oil ISO VG 46 at 50°C) 2 = Ambient...

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PFE-31, PFE-41, PFE-51 - 3

Single pumps can be supplied with oil ports oriented in different configuration in relation to the drive shaft, as follows (wiewed from the shaft end); T = inlet and outlet ports on the same axis (standard) U = outlet orientated 180° with respect to the inlet V = outlet oriented 90° with respect to the inlet W = outlet oriented 270° with respect to the inlet In multiple pumps inlet ports and outlet ports are in line. Ports orientation can be easily changed by rotating the pump body that carries inlet port. DRIVE SHAFT CYLINDRICAL SHAFT KEYED 1 = for single and multiple pumps (only first...

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PFE-31, PFE-41, PFE-51 - 4

DIMENSIONS OF SINGLE PUMPS [mm] T = inlet port P = outlet port SAE FLANGES PFE-31: port T = 1 1/4”; port P = 3/4” PFE-41: port T = 1 1/2”; port P = 1” PFE-51: port T = 2; port P = 1 1/4” SAE flanges can be supplied with the pump, see www.scoda.it, tab. SK155 Model DIMENSIONS OF PUMPS WITH THROUGH-SHAFT (FOR MULTIPLE PUMPS) [mm] T = inlet port P = outlet port SAE FLANGES PFEX-31: port T = 1 1/4”; port P = 3/4” PFEX-41: port T = 1 1/2”; port P = 1” PFEX-51: port T = 2; port P = 1 1/4” For other dimensions, see section ‫ݞ‬ Model (1) Tightening torque for screw class 12.9 09/12

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