Edwards RV12 Rotary Vane Vacuum Pump – High-Vacuum Industrial Performance | Edwards RV Series
Engineering Background
The Edwards RV Series represents decades of precision engineering in rotary vane vacuum technology. Designed and manufactured to meet the rigorous demands of laboratory, semiconductor, and industrial process environments, the RV12 delivers consistent, oil-sealed vacuum performance with minimal maintenance overhead. Edwards (Atlas Copco Group) is globally recognized as a benchmark supplier for vacuum solutions in critical process industries.
Product Positioning
The Edwards RV12 is a two-stage rotary vane vacuum pump engineered for applications requiring deep vacuum levels with stable, continuous operation. With cross-referenced part numbers A655-01-905, 3M 0620-02187, 79027, and QT50RAF-UK, this unit is a verified OEM component suitable for direct replacement or new system integration. Konmask.com supplies this unit with full traceability documentation upon request.
Complete Technical Specifications
| Model | Edwards RV12 |
| Part Numbers | A655-01-905 / 3M 0620-02187 / 79027 / QT50RAF-UK |
| Pump Type | Two-Stage Rotary Vane, Oil-Sealed |
| Pumping Speed | 12 m³/h (50 Hz) / 14 m³/h (60 Hz) |
| Ultimate Vacuum | < 1.5 × 10⁻³ mbar (with ballast closed) |
| Motor Power | 0.37 kW |
| Voltage | 220–240 V / 380–415 V, 50/60 Hz |
| Inlet Port | NW25 (KF25) |
| Exhaust Port | NW25 (KF25) |
| Oil Capacity | Approx. 0.5 L (Ultragrade 19 recommended) |
| Noise Level | ≤ 52 dB(A) |
| Weight | 2.6 kg (net) |
| Operating Temperature | 12°C – 40°C ambient |
| IP Rating | IP44 |
| Compliance | CE, RoHS |
| Country of Origin | United Kingdom |
Proven Application Environments
- Analytical instrumentation (mass spectrometry, electron microscopy)
- Semiconductor and thin-film deposition (CVD, PVD, sputtering)
- Freeze-drying and lyophilization systems
- Leak detection and helium mass spectrometry
- Laboratory vacuum ovens and degassing chambers
- Medical device manufacturing and sterilization
- Optical coating and vacuum furnace backing
Engineering Advantages
- Two-stage design achieves deeper ultimate vacuum vs. single-stage alternatives
- Gas ballast valve enables pumping of condensable vapors without oil contamination
- Low noise operation (≤52 dB) suitable for laboratory environments
- Compact footprint with direct-drive motor — no belt maintenance required
- KF25 flanged ports for rapid, tool-free system integration
- OEM-grade oil compatibility with Edwards Ultragrade 19/15 lubricants
- Proven MTBF in 24/7 continuous process environments
System Architecture & Signal Flow
The RV12 operates as a backing pump in high-vacuum systems, typically paired with turbomolecular or diffusion pumps. Process gas enters via the KF25 inlet, passes through two compression stages with oil-sealed vane assemblies, and is exhausted through the outlet with integrated oil mist filter. The gas ballast port (if open) admits controlled atmospheric air to prevent vapor condensation within the pump chamber. Motor drive is direct-coupled, eliminating belt-drive variability and reducing scheduled maintenance intervals.
Typical System Integration:
Process Chamber → RV12 Inlet (KF25) → Two-Stage Compression → Exhaust + Oil Mist Filter → Atmosphere
Sourcing & Quality Verification
- All units sourced from authorized Edwards distributors or verified OEM surplus channels
- Pre-shipment inspection: visual, dimensional, and operational run-test available on request
- Traceability documentation (serial number, manufacture date, test records) provided upon request
- Cross-reference verification: A655-01-905 = 3M 0620-02187 = 79027 = QT50RAF-UK confirmed
- Packaging: anti-static foam, sealed inlet/outlet caps, moisture-barrier bag
Procurement Process
- Submit inquiry via support@konmask.com or WhatsApp +0086 19859288691
- Receive stock confirmation and lead time within 24 business hours
- Review proforma invoice and approve payment terms (T/T, PayPal, or platform escrow)
- Unit dispatched with tracking number and shipping documents
- Post-delivery technical support available for installation and commissioning
Technical FAQ
Q: Is this a new or refurbished unit?
A: Stock condition (new OEM, tested surplus, or refurbished) is confirmed at time of inquiry. All conditions are clearly disclosed with corresponding documentation.
Q: What oil should I use?
A: Edwards Ultragrade 19 is the factory-recommended lubricant. Ultragrade 15 is acceptable for lower-vapor-pressure applications.
Q: Can this pump handle corrosive gases?
A: The standard RV12 is not rated for corrosive gas service. For aggressive chemistries, consult Edwards for the chemically resistant variant or contact us for alternatives.
Q: What is the warranty?
A: Warranty terms vary by unit condition. New OEM units carry standard Edwards warranty. Refurbished units carry a 90-day operational warranty from Konmask. Details confirmed at purchase.
Q: Do you ship internationally?
A: Yes. We ship worldwide via DHL, FedEx, and UPS Express. Export documentation (commercial invoice, packing list, COO) is included as standard.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
