Product Description
Primary Kit for Welch 1400 - 1400PP/MS - OEM Equivalent
VPS product code: 1400PP/MS
Overview
This primary kit supports planned service or rebuild work on the listed Welch equipment. Match VPS product code 1400PP/MS and the complete pump model before ordering.
Product Details
| Field | Details |
|---|---|
| Product Type | Primary Kit |
| VPS Product Code / SKU | 1400PP/MS |
| Compatible Manufacturer | Welch |
| OEM Status | OEM Equivalent |
| Verified Pump Family | DUOSEAL 1400 / 1402 / 1405 |
What This Kit Includes
- Vanes: 1 verified BOM line item
- Gaskets: 3 verified BOM line items
- O-Rings & Seals: 3 verified BOM line items
- Springs / Clips: 2 verified BOM line items
- Drive / Mechanical: 8 verified BOM line items
Complete Bill of Materials
| Part Number | Description | Quantity |
|---|---|---|
| 411052 | CASE Gasket | 1 |
| 410383 | INTAKE COVER Gasket | 1 |
| 410056 | Seal Gasket | 1 |
| 411063 | HOLDER,SPRING | 2 |
| 410613 | WOODRUFF CUT KEY | 2 |
| 410624 | WOODRUFF CUT KEY | 1 |
| 411401E | KIT,Shaft Seal,MECH.,.625" | 1 |
| 320106 | O'RING,VITON,25.07 X 2.62 MM | 1 |
| 40010 | O'RING,VITON,82.22 X 2.62 MM | 1 |
| 320083 | O'RING,VITON,86 X 2.5 MM | 1 |
| 411150 | RETAINING RING | 1 |
| 410578 | Shaft (METAL CASE) Seal | 1 |
| 411304 | SS Spring | 4 |
| 410708 | V-BELT | 1 |
| 411239 | Exhaust Valve | 1 |
| 411059 | PHENOLIC 1st STAGE Vane | 4 |
| 411056 | ALUM WASHER | 8 |
| 411137 | ALUMINA WASHER | 3 |
| 411267 | RUBBER WASHER | 1 |
| 411266 | TENSION WASHER | 1 |
| 4401200 | BALL,STEEL | 1 |
Recommended Oil
Use the pump manufacturer’s approved lubricant for the exact model and process. Confirm viscosity, chemistry, seal compatibility, and current oil before changing products. Open the VPS Vacuum Pump Oil Cross Reference Chart.
When Should This Be Replaced / Rebuilt
Use this kit during the service level and interval specified for the pump, or after inspection confirms that a rebuild is required. Follow the model-specific service manual and verify the BOM before disassembly.
Resources
- Welch Vacuum Pump Complete Resource Center
- VPS Schematics, Manuals & Technical Library
- Vacuum Pump Oil Cross Reference Chart
Related Products
- Major Repair Kit for Welch 1400 - 1400K-10 - OEM Equivalent (SKU 1400K-10)
- Major Repair Kit for Welch 1400 - 1400PI - OEM Equivalent (SKU 1400PI)
- Major Repair Kit for Welch 1400 - 1400PI/MS - OEM Equivalent (SKU 1400PI/MS)
Why Buy From Vacuum Pump Supply
- Vacuum pump specialists since 2006
- More than 15,000 vacuum pump products
- OEM and OEM-equivalent repair solutions
- Support for current and legacy equipment
FAQ
Is this a genuine OEM product?
No. This is a Vacuum Pump Supply OEM-equivalent replacement product; the compatible manufacturer name identifies fitment only.
How do I confirm the correct part?
Compare VPS product code 1400PP/MS and the complete pump model with the equipment nameplate and service documentation. Email Vacuum Pump Supply / request help when the model, suffix, or serial range is uncertain.
Are the kit contents listed?
Yes. The verified source quantities are shown in the Complete Bill of Materials table on this page.
Need help confirming fit?
Send the pump model, serial number, nameplate photo, and this VPS product code. We will help verify the service item.
OEM-Equivalent Product
This Vacuum Pump Supply product is an OEM-equivalent replacement for the listed Welch pump family or application.
