Edwards · nES Single Stage Rotary Vane Pumps

nES65

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Oil-Lubricated Rotary VaneOEM data

Image: Edwards

Pumping speed: 64 m³/h
Ultimate pressure: 0.5 mbar
Weight: 86 kg
Motor power: 1.8 kW

Headline ratings converted to common units for comparison; the table below shows each figure exactly as published.

Technical data

Source: Edwards product page · retrieved 2026-10-02

As published	50 Hz	60 Hz	50 Hz; (50 Hz)	60 Hz; (60Hz)	without gas ballast	with gas ballast	Value	(LxWxH) approximate	approximate	50 Hz; (50Hz)	50 Hz; (50Hz) air/water	60 Hz; (60Hz) air/water
Maximum displacement (50Hz)	59.0 m3h-1 oem source Source · 2026-10-02
Maximum displacement (60Hz)		71.0 m3h-1 oem source Source · 2026-10-02
Pumping speed (50 Hz) Pumping speed			54.0 m3h-1 oem source Source · 2026-10-02
Pumping speed (60Hz) Pumping speed				64.0 m3h-1 oem source Source · 2026-10-02
Ultimate vacuum without gas ballast Ultimate pressure					0.5 mbar oem source Source · 2026-10-02
Ultimate vacuum with gas ballast Ultimate pressure						1.5 mbar oem source Source · 2026-10-02
Inlet connection							40 ISO-F / G1 ¼ ISO-F / G1 ¼ ISO / G oem source Source · 2026-10-02
Outlet connection							40 ISO-F / G1 ¼ ISO-F / G1 ¼ ISO / G oem source Source · 2026-10-02
Max permitted outlet pressure							1.15 bar oem source Source · 2026-10-02
Max water vapour pumping rate (50Hz)	1.0/1.1 /1.1 kgh-1 / lbh-1 oem source Source · 2026-10-02
Max water vapour pumping rate (60Hz)		1.25/1.32 /1.32 kgh-1 / lbh-1 oem source Source · 2026-10-02
Dimensions (LxWxH) approximate Dimensions								586x320x314 mm oem source Source · 2026-10-02
Weight approximate Weight									86 kg oem source Source · 2026-10-02
Motor protection rating							IP55 oem source Source · 2026-10-02
Motor rated power (50Hz) Motor power										1.8 kW oem source Source · 2026-10-02
Motor rated power (60Hz) Motor power				1.8 kW oem source Source · 2026-10-02
Cooling							air oem source Source · 2026-10-02
Noise level (50Hz) air/water Noise level											60 dB(A) oem source Source · 2026-10-02
Noise level (60Hz) air/water Noise level												64 dB(A) oem source Source · 2026-10-02
Oil refill capacity							2 litre oem source Source · 2026-10-02
Recommended oil							Edwards ULTRAGRADE Performance 70 or ULTRAGRADE Endurance Extend 110 Edwards ULTRAGRADE Performance 70 or ULTRAGRADE Endurance Extend 110 oem source Source · 2026-10-02

Original extracted values are shown with their source and review status. Multiple values under the same condition remain separate for review.

Same family: nES100, nES220, nES300, nES300S, nES40, nES630, nES750

Explore the parts

nES65, pulled apart

This model’s parts, by where they sit

Our drawing of the machine type, with the nES65's own parts from Edwards's lists. Side view along the shaft. Oil-free (dry) pumps have no exhaust box oil, sight glass or oil filter; their exhaust filter is a dust filter.