Product Description
Welch ChemStar 1376N Belt-Driven Vacuum Pump
Welch part number: 1376N-01
Factory configuration: 115 V / 60 Hz / 1-phase
Overview
The Welch ChemStar 1376N is a corrosion-resistant belt-driven rotary-vane pump for chemical-vapor applications. ChemStar wetted materials and lubricant requirements differ from standard DuoSeal service, so process chemistry and oil compatibility must be reviewed before the pump is quoted.
| Pumping speed | Ultimate pressure | Pump design | Oil capacity |
|---|---|---|---|
| 10.6 cfm / 300 L/min | 1 × 10⁻⁴ Torr | Two-stage | 2.4 L |
Configuration
| Field | This product |
|---|---|
| Welch part number | 1376N-01 |
| Model | ChemStar 1376N |
| Electrical / factory configuration | 115 V / 60 Hz / 1-phase |
| Purchase status | Call for pricing and availability |
Chemical-service note: Provide the process chemistry and requested lubricant when asking for a quote.
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.
- ChemStar construction is intended for corrosive chemical-vapor service.
Technical Specifications
| Specification | Value |
|---|---|
| Pump design | Two-stage |
| Free-air displacement | 10.6 cfm / 300 L/min |
| Ultimate pressure | 1 × 10⁻⁴ Torr |
| Pump speed | 525 rpm |
| Oil capacity | 2.4 L |
| Motor rating | 1 hp |
| Inlet connection | NW25 |
| Approximate weight | 180 lb |
| Approximate dimensions (L × W × H) | 20 × 14.1 × 15.4 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 |
|---|---|---|
| 1376N-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 Gold Oil or confirmed chemistry-compatible lubricant | Do not substitute standard mineral pump oil without reviewing the process chemistry. |
| Repair kit | 1376N ChemStar major repair kit | 1376K-10 |
| Exhaust filtration | Disposable exhaust filter for 1376 / 1402 | VPSF-1402; confirm fit and connection before ordering |
| Resource Center | Welch Vacuum Pump Resource Center | VPS-owned cross references, parts and maintenance guidance. |
Applications
Chemical-vapor handling, distillation, evaporation, filtration and corrosion-sensitive process service.
Resources
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