Description
Leybold-Heraeus D30A Trivac Dual Stage Rotary Vane Vacuum Pump 26.8 CFM For Parts
The Leybold-Heraeus D30A Trivac is a dual-stage rotary vane vacuum pump designed for high-throughput rough and medium vacuum applications. It is paired with a General Electric three-phase AC motor and mounted on a common base frame. This unit does not power on — the motor has an unknown fault and is being sold as-is for parts or repair. When the fan blades are rotated by hand, the motor shaft turns freely and the pump body generates a vacuum, indicating the pump mechanism itself appears mechanically intact.
Specifications & What's Included
- Make: Leybold-Heraeus Vacuum Products Inc.
- Model: Trivac D30A
- Catalog No.: 302543
- Pump Type: Dual-stage rotary vane vacuum pump
- Pumping Speed: 26.8 CFM
- Power Rating: 1.5 HP
- Motor: General Electric Model 5K45SG2257 (GE Cust P/N 722-60-071)
- Motor Voltage: 208-230/460V AC
- Phase: Three-phase
- Motor RPM: 1725 RPM (nameplate)
- Frequency: 60 Hz
- Connection: Delta (208-230V) / Wye (460V)
- Vacuum Fluid: LHE-175 (Leybold-Heraeus vacuum oil)
- Inlet Port: KF/NW flanged port with stainless bellows flex connector
- Top port: KF-flanged circular fitting with retaining hardware
- Oil fill/adjustment: Black knurled knob on top panel
- Overall Dimensions: 26" L x 10" W x 15" H (approximately)
- Approximate Weight: 173 lbs (freight shipment required)
- Country of Manufacture: United States
- Condition: As-is / For parts or not working — does not power on
Applications
The Leybold Trivac D30A is a workhorse dual-stage rotary vane pump widely used in semiconductor fabrication, thin-film deposition (PVD/CVD), electron microscopy, leak detection, and general industrial vacuum systems. Dual-stage rotary vane pumps of this class are capable of achieving ultimate pressures in the 10⁻³ to 10⁻⁴ mbar range, making them suitable as backing pumps for turbomolecular or diffusion pumps as well as standalone roughing pumps. The Trivac D series was a long-running Leybold-Heraeus product line — later continued under the Leybold brand after the Heraeus vacuum products division was reorganized — and remains a recognized, widely serviced design in research labs, industrial vacuum processes, and semiconductor tool maintenance environments. Replacement motors, rebuild kits, and service documentation for the D30A are available through vacuum equipment service specialists, making this as-is unit potentially restorable.
This Leybold-Heraeus D30A Trivac dual-stage rotary vane vacuum pump is being sold AS-IS for parts or repair. It does not power on when electricity is applied — the motor has an unknown fault. Notably, when the fan blades are rotated by hand the motor shaft turns freely, and the pump body generates a vacuum, suggesting the pump mechanism itself is intact. The source of the motor failure has not been diagnosed. The unit shows typical wear for its age — the white painted housing has some scuffs and discoloration consistent with lab or industrial use. Both the KF/NW inlet port assembly and the bellows flex connector are present and appear undamaged. This item is heavy (approximately 173 lbs) and will require freight shipping. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Leybold-Heraeus |
Model: |
D30A |
MPN: |
302543 |
Secondary Model: |
Trivac D30A |
SKU: |
39229 |
Type: |
Dual Stage Rotary Vane Vacuum Pump |
Pumping Speed: |
26.8 CFM |
Power Rating: |
1.5 HP |
Voltage: |
208-230/460V AC |
Phase: |
Three Phase |
Motor RPM: |
1725 RPM |
Motor Model: |
GE 5K45SG2257 |
Motor Manufacturer: |
General Electric |
Frequency: |
60 Hz |
Connection: |
Delta / Wye (1Y/1-2Y) |
Vacuum Fluid: |
LHE-175 |
Inlet Port: |
NW/KF flanged inlet with bellows flex connector |
Dimensions: |
26" x 10" x 15" H |
Country/Region of Manufacture: |
United States |
Seller Notes: |
Pump body only with motor attached — no cables or ancillary hardware included. Requires freight shipping. |
Form Factor: |
Base-Mounted / Floor Unit |
Catalog Number: |
302543 |
Compatible Fluid: |
LHE-175 (Leybold-Heraeus vacuum oil) |
Condition Notes: |
Leybold-Heraeus D30A Trivac rotary vane vacuum pump — sold AS-IS for parts/repair. Does not power on; motor fault unknown. Pump body rotates freely by hand and generates vacuum. Freight shipping required. No functionality guarantee. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |