Speck NP25 30 280 38 280 41 210 50 210 54 200 L

Summary

Product identification

High-Pressure Plunger Pump, Series NP25.

Operating limits

• Performance Data (Intermittent Operation):
  • NP25/30-280:
    • Power Consump.: 17.1 kW
    • Pressure max: 280 bar
    • RPM max: 1450 min⁻¹
    • Output max: 31.1 l/min
    • Water-Temp. max: 70 °C
    • Plunger dia.: 22 mm
    • Stroke: 20 mm
    • Weight approx.: 19.0 kg
    • NPSH Required: 9.0 mWs
  • NP25/38-280:
    • Power Consump.: 20.6 kW
    • Pressure max: 280 bar
    • RPM max: 1450 min⁻¹
    • Output max: 37.3 l/min
    • Water-Temp. max: 70 °C
    • Plunger dia.: 22 mm
    • Stroke: 24 mm
    • Weight approx.: 19.0 kg
    • NPSH Required: 10.0 mWs
  • NP25/41-210:
    • Power Consump.: 16.8 kW
    • Pressure max: 210 bar
    • RPM max: 1450 min⁻¹
    • Output max: 40.6 l/min
    • Water-Temp. max: 70 °C
    • Plunger dia.: 25 mm
    • Stroke: 20 mm
    • Weight approx.: 19.0 kg
    • NPSH Required: 9.0 mWs
  • NP25/50-210:
    • Power Consump.: 20.2 kW
    • Pressure max: 210 bar
    • RPM max: 1450 min⁻¹
    • Output max: 48.8 l/min
    • Water-Temp. max: 70 °C
    • Plunger dia.: 25 mm
    • Stroke: 24 mm
    • Weight approx.: 19.0 kg
    • NPSH Required: 10.0 mWs
  • NP25/54-200:
    • Power Consump.: 20.7 kW
    • Pressure max: 200 bar
    • RPM max: 1450 min⁻¹
    • Output max: 54.0 l/min
    • Water-Temp. max: 70 °C
    • Plunger dia.: 26 mm
    • Stroke: 24.6 mm
    • Weight approx.: 18.0 kg
    • NPSH Required: --
• Data are for intermittent operation. Data for continuous operation are available on request.
• Intermediate values for output/speed and pressure/output/kW can be established by linear extrapolation.
• A general formula for calculating power is: P (bar) x Q (l/min) / 475 = kW.
• A safety valve is to be installed in accordance with the guidelines for liquid spraying units so that the admissible operating pressure cannot be exceeded by more than 10%. Pump operation without a safety valve, as well as any excess in temperature or speed limits, automatically voids the warranty.
• Particular care must be taken when pumping warm water, making absolutely sure that cavitation cannot occur.

Feed water

• SPECK TRIPLEX Plunger Pumps are suitable for pumping clean water and other non-aggressive or non-abrasive media with a specific weight similar to water.
• Prior to pumping any other media, a check must be made to establish whether the standard and/or special-version pumps are suitable for pumping the required medium, taking pump performance and temperature values into consideration.

Mechanical / hydraulic

• Construction Characteristics:
  • Crankcase of solid aluminium-cast.
  • Crankshaft with taper roller bearings together with plain bearing conrod all run in oil.
  • Solid ceramic plunger.
  • Double plunger sealing with leakage-return.
  • All gaskets in seal sleeves ensuring precise centring and easy replacement.
  • Identical suction and discharge valves; discharge valves easily accessible.
• Materials Used:
  • Valve Casing: Special Brass.
  • Plunger: Solid ceramic.
  • Valves: High-Grade Stainless Steel.
  • Sleeves: Nitrile with fabric reinforcing.
  • Crankshaft: Drop-forged and case-hardened.
• Even though SPECK-TRIPLEX pumps run almost pulsation-free, there are cases where a pressure accumulator is necessary. This will depend mainly on the construction of the unit and the conditions under which it is operated. The same effect can also be achieved by using flexible pressure lines.

Disclaimer: This summary is based on extracted text and may miss figures, footnotes, or revisions present in the full OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror