Product Description
Welch DuoSeal 1400 with Explosion-Proof Motor Belt-Driven Vacuum Pump
Welch part number: 1400W-01
Factory configuration: 115 V / 60 Hz / 1-phase
Overview
The Welch DuoSeal 1400 with Explosion-Proof Motor combines DuoSeal belt-driven vacuum performance with a factory explosion-proof motor package. Hazardous-location suitability depends on the complete installation, electrical classification and local requirements.
| Pumping speed | Ultimate pressure | Pump design | Oil capacity |
|---|---|---|---|
| 0.9 cfm / 25 L/min | 1 × 10⁻⁴ Torr | Two-stage | 0.59 L |
Configuration
| Field | This product |
|---|---|
| Welch part number | 1400W-01 |
| Model | DuoSeal 1400 with Explosion-Proof Motor |
| Electrical / factory configuration | 115 V / 60 Hz / 1-phase |
| Purchase status | Call for pricing and availability |
Hazardous-location note: Confirm motor classification, wiring, installation and local code requirements before ordering.
Features
- Low-speed belt drive supports smooth operation and long service life.
- Oil-sealed rotary-vane mechanism provides dependable vacuum performance.
- Serviceable construction supports routine seal, vane and gasket replacement.
- Factory motor and inlet configuration is identified by the exact Welch part number.
- Explosion-proof motor configuration requires application and code review.
Technical Specifications
| Specification | Value |
|---|---|
| Pump design | Two-stage |
| Free-air displacement | 0.9 cfm / 25 L/min |
| Ultimate pressure | 1 × 10⁻⁴ Torr |
| Pump speed | 580 rpm |
| Oil capacity | 0.59 L |
| Motor rating | 1/3 hp |
| Inlet connection | 3/4-20 threaded; 7/16 in tubing |
| Approximate weight | 70 lb |
| Approximate dimensions (L × W × H) | 18.3 × 11.5 × 12.4 in |
Published performance is nominal and may vary with motor frequency, condition, lubricant, process gas and measurement method. Confirm the exact part number before ordering.
Available Configurations
| Welch part number | Electrical / factory configuration | Availability |
|---|---|---|
| 1400W-01 | 115 V / 60 Hz / 1-phase | This configuration |
Maintenance, Oil & Filters
| Maintenance item | Recommended product or resource | Part number / notes |
|---|---|---|
| Vacuum pump oil | Welch DuoSeal / Gold Oil or verified VPS equivalent | Verify viscosity, process and material compatibility before substituting oil. |
| Repair kit | 1400 repair kit | 1400PI |
| Exhaust filtration | Disposable exhaust filter for 1400 | VPSF-1400; confirm fit and connection before ordering |
| Resource Center | Welch Vacuum Pump Resource Center | VPS-owned cross references, parts and maintenance guidance. |
Applications
Applications requiring a factory explosion-proof motor after complete hazardous-location review.
Resources
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