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Description
Two-Stage Rotary Vane Vacuum Pump, 12 CFM, 0.75 mTorr | USA Lab
High-performance, oil-sealed two-stage rotary vane pump designed for medium/rough vacuum. Delivers up to 12.01 CFM (60 Hz) with an ultimate pressure of 0.75 mTorr for dependable drying, degassing, filtration, and foreline service.
Features a DN 25 ISO-KF (NW25) inlet and 15 mm nozzle / 3/4" BSPP outlet, IE2 motor with IP44 protection, and quiet 57 dB(A) operation. Compact footprint: 0.578 m L × 0.180 m W × 0.271 m H; weight 39 kg.
Runs on 1-Ph 100/200 V, 50/60 Hz (C14 inlet); rated to 950 W @ 60 Hz / 750 W @ 50 Hz. Uses Edwards 45 vacuum oil (0.75–1.05 L typical). Some variants require hard-wiring.
Verify ambient and altitude limits before commissioning.
12 CFM @ 60 Hz Ultimate 0.75 mTorr 950 W Rated Power DN25 ISO-KF Inlet
Quiet & Efficient: ≤ 57 dB(A), IE2 motor, air-cooled for low maintenance.
Deep Vacuum: Reaches 0.75 mTorr ultimate; 11.25 mTorr with gas ballast.
Lab-Ready I/O: DN25 KF inlet, 15 mm / 3/4" BSPP outlet, C14 power inlet.
Why buy from USA Lab
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Engineers & technicians on staff.
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Tested and trusted products.
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Nationwide 1-2 day shipping.
Nationwide 1-2 day shipping.
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US-based service & spares.
US-based service & spares.
Resources & Downloads
Why this rotary vane pump?
- High throughput — 12 CFM @ 60 Hz (10.01 CFM @ 50 Hz) with robust displacement up to 14.71 CFM.
- Reliable vacuum — 0.75 mTorr ultimate; handles vapor via gas ballast (11.25 mTorr).
- Built for labs — DN25 KF inlet, 15 mm / 3/4" BSPP outlet; IP44 enclosure.
- Electrical flexibility — 1-Ph 100/200 V, 50/60 Hz, 950 W peak rating.
- Low noise, small footprint — just 57 dB(A); compact 0.578 m × 0.180 m × 0.271 m.
Talk to an expert
Get help with sizing, oil volume, and gas-ballast configuration for your process.
Technical Specifications
| Model | Two-Stage Oil Rotary Vane Vacuum Pump (DN25 KF) |
|---|---|
| Inlet / Outlet | DN 25 ISO-KF (NW25) inlet / 15 mm nozzle, 3/4" BSPP (G 3/4") female outlet |
| Power / Phase | 1-Ph 100/200 V, 50/60 Hz; 950 W @ 60 Hz, 750 W @ 50 Hz |
| Electrical Connector | IEC EN60320 C14 (mates with C13 mains cable) |
| Pumping Speed (60 Hz) | 12.01 CFM (Air/N2) |
| Pumping Speed (50 Hz) | 10.01 CFM (Air/N2) |
| Displacement (60 Hz) Max | 14.71 CFM |
| Displacement (50 Hz) Max | 12.07 CFM |
| Ultimate Pressure | 0.750 mTorr (ultimate), 11.25 mTorr with gas ballast |
| Water Vapor Capacity | 8.300 × 10−5 kg/s; Water vapor pressure max 15001.23 mTorr |
| Nominal Rotational Speed | 24.00 Hz (50 Hz), 28.67 Hz (60 Hz) |
| Cooling / Noise | Air cooling (forced fan) / 57.00 dB(A) |
| Protection / Motor Class | IP44 / IE2 |
| Dimensions (L × W × H) | 0.578 m × 0.180 m × 0.271 m |
| Weight | 39.00 kg |
| Operating Limits | Ambient 286.15–313.15 K; Storage 243.15–343.15 K; Altitude ≤ 2000 m |
| Oil Type / Capacity | Edwards 45; 7.500×10−4–1.050×10−3 m³ (0.75–1.05 L) |
| Certifications | UL (61010-1 3rd Ed.); CSA (C22.2 No. 61010-1-12) |
| Classification | Medium Vacuum Pump / Rough Vacuum Pump; Wet; Oil Rotary Vane Pump Two-Stage |
| Materials (vacuum-wetted) | High-grade cast iron, cast aluminium, fluorocarbon elastomer, nitrile, silicon, chemically-resistant polymers, nickel, stainless steel |
| Accessories / Scope | Mains cable not included; some variants require hard-wiring; see gas ballast & filter accessories |
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FAQ
What inlet/outlet connections are included?
The pump uses a DN25 ISO-KF (NW25) inlet and a 15 mm nozzle outlet with 3/4" BSPP female thread.
What oil and volume does it require?
Use Edwards 45 vacuum oil. Typical fill range is 0.75–1.05 L depending on service conditions.
How loud is the pump during operation?
Rated noise level is approximately 57 dB(A) with forced air-cooling.
What are the operating limits?
Ambient 286.15–313.15 K, storage 243.15–343.15 K, altitude up to 2000 m, IP44 enclosure.
Important Shipping Notice!
DISCLAIMER:
All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.
Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.
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