Edwards Dry Scroll Pump nXDS15i - 10cfm

The Edwards nXDS15i extends the proven nXDS platform to higher throughput while staying compact and oil-free. Like the nXDS10i, it’s a go-to small dry pump for scientific and industrial workflows, offering a standard variant for broad use, a corrosion-resistant nXDS15iC , and the nXDS15iR with a blanked gas ballast.
nXDS15iR – 100–127/200–240 V, 1-Ph, 50/60 Hz: Gas ballast is permanently blanked to prevent accidental opening—ideal for specialist tasks such as gas recirculation, rare-gas pumping and recovery, or processes where dilution is undesirable and sealing integrity minimizes potential gas loss.
Expect quiet ~52 dB(A) operation, intelligent controls, low power draw, superior vapor handling, and long service intervals to maximize uptime and reduce total cost of ownership.
Oil-Free / Dry Scroll Quiet 52 dB(A) DN25 ISO-KF Ports IP20 Rated Single-Phase 100–240 V CE • UL • CSA
Quiet operation: a better working environment around sensitive instruments.
Hermetically sealed, oil-free: contamination-free process and no oil disposal.
Low power & long intervals: intelligent controls and extended service for lower ownership cost.
nXDS Instructions nXDS Brochure
Why the nXDS15i dry scroll family?

Clean, oil-free vacuum — protects samples and instruments; no hydrocarbon backstreaming.
nXDS15iR for sealed processes — blanked gas ballast prevents dilution; ideal for rare-gas work and recirculation.
Corrosion-resistant option — nXDS15iC uses materials to better tolerate aggressive vapors.
Flexible power — single-phase 100–127/200–240 V, 50/60 Hz with IEC C14 inlet.
Low noise, compact footprint — ~52 dB(A) and small size for benchtop and OEM integration.
Technical Specifications
Model
Edwards nXDS15i / nXDS15iC / nXDS15iR
Technology
Dry Scroll (oil-free), hermetically sealed
Inlet Flange
DN 25 ISO-KF (NW25)
Outlet Flange
DN 25 ISO-KF (NW25)
Weight
25.20 kg
Leak Rate
1.000 × 10⁻⁷ (typ.)
Power Supply
1-Phase, 100–127/200–240 V, 50/60 Hz
Electrical Inlet
IEC EN60320 C14 (mains cable C13)
IP Rating
IP20
Cooling
Forced air (fan)
Noise Level
52 dB(A)
Vibration (rms)
4.500 × 10⁻³ m/s
Dimensions (L × W × H)
0.432 m × 0.282 m × 0.302 m
Ultimate Pressure
0.7 mbar
Ultimate w/ Gas Ballast
4.0 mbar
Max Water Vapor Pressure
3500 Pa
Water Vapor Capacity
6.111 × 10⁻⁵
Power @ Atmosphere (cont.)
560 W
Power @ Ultimate
300 W
Power @ Ultimate (GB)
390 W
Pumping Speed (Air/N₂ @50 Hz)
4.194 × 10⁻³
Operating Inlet Max
20,000 Pa (200 mbar)
Operating Outlet Max
1.5 × 10⁵ Pa (1 bar)
Ambient Operating Range
5–40 °C (278.15–313.15 K)
Storage Temperature
-30–70 °C (243.15–343.15 K)
Altitude (max)
2000 m
Communication
DX protocol
Certifications
CE; UL (61010-1 3rd); CSA (C22.2 No.61010-1-12); EAC
ATEX (internal atmospheres)
Ex II 3 G Ex h IIC T4 Gc X
Variants
Standard (15i); Corrosion-resistant (15iC); No gas ballast (15iR)
Materials (construction)
Steel, copper, hydrocarbon lubricant, chemically resistant polymers
Materials (vacuum-wetted)
Anodised & cast aluminium, nickel, PTFE, stainless steel, fluorocarbon elastomer seals, chemically resistant polymers
Rotor / Stator
Aluminum, anodised / Aluminum, anodised
Application Class
Rough/Medium Vacuum (1000 mbar to 1 × 10⁻³ mbar)
Scope of Supply
Mains cable sold separately; gas ballast & filters available as accessories
Dimensional Note
For detailed 2D/3D drawings, refer to the instruction manual/models
Analytical & Mass Spec Pharma & Biotech Chemical Processing Gloveboxes & R&D
FAQ

How does the nXDS15iR differ from the standard nXDS15i?

nXDS15iR: gas ballast is blanked (cannot be opened), making it ideal for sealed processes like rare-gas pumping or gas recirculation where dilution must be avoided. nXDS15i: standard variant for most clean-vacuum tasks.
Is the nXDS15i family oil-free?

Yes. nXDS pumps are dry scroll designs with no sealing or lubrication oil in the vacuum space, minimizing contamination and simplifying maintenance.
Which applications fit the nXDS15i, 15iC, and 15iR?

Analytical instruments, vacuum ovens/dryers, gloveboxes, thin-film, sample prep, and general roughing. Choose 15iC for aggressive vapors and 15iR when gas dilution must be prevented.
What are the power and noise characteristics?

Single-phase 100–127/200–240 V at 50/60 Hz with IEC C14 inlet; approx. 52 dB(A) sound level for a lab-friendly acoustic profile.
What maintenance is typically required?

Periodic tip-seal changes and routine checks of filters and gas ballast accessories (where applicable). Long service intervals help maximize uptime.