The ECODRY 65 He plus is a dry multistage Roots pump for helium-3 and helium-4 recovery and recirculation. It combines enhanced leak tightness with up to 52 m³/h helium pumping speed. Its 55 m³/h maximum air pumping speed is a separate rating; specify the gas and working pressure when comparing recovery systems.
Leybold ECODRY 40/65 plus manufacturer range photograph; standard gas-ballast version shown. The 65 He plus has a different gas-ballast arrangement.
Part of the Leybold ECODRY plus dry multistage roots pumps family. Compare the range and other model options.
Tell us the configuration and quantity you need. Include your process requirements if you would like help with selection.
View quote listThe ECODRY 65 He plus is a dry multistage Roots pump for helium-3 and helium-4 recovery and recirculation. It combines enhanced leak tightness with up to 52 m³/h helium pumping speed. Its 55 m³/h maximum air pumping speed is a separate rating; specify the gas and working pressure when comparing recovery systems.
The He version is selected for gas retention as well as flow. Leybold specifies a total helium leak rate below 5 × 10⁻⁸ mbar·l/s using ISO 20485 procedure A.1; the standard version’s local test uses a different procedure and is not directly interchangeable.
| Specification | Details |
|---|---|
| Maximum pumping speed | 55 m³/h on air, without gas ballast; ±5%; up to 52 m³/h on helium |
| Ultimate pressure | <0.03 mbar without gas ballast |
| Inlet / exhaust | DN40 ISO-KF / DN16 ISO-KF |
| Electrical supply | Single-phase 100–120 V or 200–240 V ±10%, 50/60 Hz; separate order codes |
| Rated power / current | 1200 W; 15 A low-voltage version / 10 A high-voltage version |
| Dimensions (L × W × H) | 623 × 320 × 298 mm; allow additional connection and cooling clearance |
| Mass | Approximately 43 kg, ±1 kg |
| Cooling / ambient | Air-cooled; 5–40 °C |
| Gas ballast | Not fitted; not suitable for condensable vapours |
| Water-vapour capacity with gas ballast | Not applicable |
Pressure and speed refer to the pump, not guaranteed chamber performance. The 40/65 platform has different pressure, connection and electrical ratings from ECODRY 25/35 plus.
For a UK 230 V installation, specify the 200–240 V version. The mains cable is ordered separately: Leybold lists 161810UK, BS1363 to IEC C19, 2 m. The pump has an IEC C20 inlet; confirm circuit protection and the selected nameplate rating.
The manual lists two centring rings, two clamping rings, two blank flanges and the D-sub 9-pin bridge connector for manual operation in the supplied equipment. Interface cables, inlet screens and mounting accessories require separate selection.
The 65 He plus has no gas-ballast valve and is not suitable for condensing gases. Provide helium purity, recovery pressure, leak budget and return-line requirements. Recovery of other gases requires application review.
Local start/stop, the X1 control interface and the X104 RS485 interface support equipment integration. Specify the intended control method and cables. The dry pumping chamber has no process oil; bearings and gears use PFPE lubrication.
The manual excludes short-cycle pumping with high repetition rates. Above 2000 m installation altitude, inlet pressure should not permanently exceed 50 mbar. Allow unobstructed cooling airflow and service access.
These references identify specific builds for an enquiry. This model-level listing has no single manufacturer part number; confirm the selected build and current availability with Girovac.
| Specification | Details |
|---|---|
| Order code 161065V31 | 100–120 V ±10%, 1-phase, 50/60 Hz |
| Order code 161065V32 | 200–240 V ±10%, 1-phase, 50/60 Hz |
Specification source: 300758785_002_C3, January 2026, pages 12–15, 17–22 and 37; 3610 0161 02, February 2026. Match the document revision to the pump supplied.
Explore the ECODRY plus family guide or compare ECODRY 40, ECODRY 65. Return to the Leybold brand guide.
For turbo backing, compare the TURBOVAC i / iX range. A standalone backing pump does not imply compatibility with a preconfigured TURBOLAB station.
For an ECODRY 65 He plus quotation, send chamber volume, target pressure, gas and vapour composition, continuous throughput, pump-down time, cycle frequency, inlet and exhaust connections, electrical supply and quantity. Include control, filtration and installation-space requirements. Girovac will confirm the configuration, included equipment, price and delivery.
| Manufacturer | LEYBOLD |
|---|---|
| Equipment type | Dry Multistage Roots Vacuum Pumps |
| End / ultimate pressure | <0.03 mbar without gas ballast |
| Electrical supply | Single-phase 100–120 V or 200–240 V ±10%, 50/60 Hz; separate order codes |
| Maximum pumping speed | 55 m³/h on air, without gas ballast; ±5%; up to 52 m³/h on helium |
| Inlet / exhaust | DN40 ISO-KF / DN16 ISO-KF |
| Rated power / current | 1200 W; 15 A low-voltage version / 10 A high-voltage version |
| Dimensions (L × W × H) | 623 × 320 × 298 mm; allow additional connection and cooling clearance |
| Mass | Approximately 43 kg, ±1 kg |
| Cooling / ambient | Air-cooled; 5–40 °C |
| Gas ballast | Not fitted; not suitable for condensable vapours |
| Water-vapour capacity with gas ballast | Not applicable |
Send the pump model and part number when asking about a replacement. Compatibility depends on the equipment and operating conditions.
Confirm the exact version, electrical supply and connections. Ask whether oil, filters, fittings, cables or controllers are included or separately specified.
Availability, lead time and the applicable warranty are confirmed for your quotation. A catalogue listing does not reserve stock.
What to check in your quotation · Delivery · Returns and faults
Leybold ECODRY 65 He plus Dry Multistage Roots Vacuum Pump
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Compare the stated conditions as well as the values. A missing specification is not a zero rating; confirm suitability with Girovac.
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