Marine division

PB PHS PZ PZD PXF PO-PWO POF 2SP LS 2SP PDP SPB MPVB VMP/BVPA
PB PHS PZ PZD PXF PO-PWO POF 2SP LS 2SP PDP SPB MPVB VMP/BVPA

PZ |  PZ-type 3-screw pumps

Description

PZ-type 3-screw pumps

  • For hydraulic oils, lubricating oils
  • Versions for heavy fuel
  • Flow rates up to 5,400 L/min
  • Admissible delivery pressure (continuous) = 16 bar
  • ATEX Zone 2
  • Standard use:
    • Pumps for lubrication circuits and auxiliary cooling circuits.
    • With internal pressure relief valve.
  • Versions:
    • for fluids with high viscosities
    • for emulsified air (noise cancellation)
    • with magnetic drive joint

Technical Specifications

Data installation
Installation Indoor or Outdoor
Environment Industrial, Marine
Temperature Amb. Min / Max -20°C (CS) e -40°C (LTCS) , only storage / 60°C *
Operating working conditions
Fluids Mineral and synthetic lubricating oils TOO HIGH VISCOSITY ', HFC fluids.
Solids content 0% *
Viscosity range to 1,2 a 5000 cSt *
Speed to 750 a 3600 rpm *
Rotation (viewed from shaft end) Hourly
Counterclockwise on request
Specifications
Design available STANDARD Seim S.r.l. - Screws Pumps -, ABS Type Approval,
BV Mode II, RINA
Flow to 20 a 5400 lpm
(da 1,2 a 324 m3/h; to 5,3 a 1426,6 GPM) *
Suction pressure to -0,5 a 10 barg (da -8 a 146 psi) *
Delivery pressure MAX 16 barg (233 psi) *
Operating Temperature to 0 a 150 °C *
Seal Type Mechanics
Bearing Radial
Bearing lubrication Self-lubricating
Driver Electric Motor, PDA
Type of construction Horizontal or vertical
IN/OUT DIN UNI EN1092-1, ANSI150 B16.5
Safety valve Internal recirculation
Materials
Body / Flange GJL 250, GJS 400 *
Screws Carbon Steel nitrided *
O-rings Viton ®
Painting on demand

* For different values ​​contact Seim

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