Service Parts for Busch 400 Vacuum Pumps
Spec Sheet
Replacement Pump Module
Your pump will be like new when rebuilt with a new pump module. Includes new cylinder, vanes, seals, bearings, and end plates. No need to set to the correct tolerances, as the module is set for deep vacuum. Shaft and rotor assembly is also available.
| Item | Part # | |
| Complete Pump Module | 262987 | |
| Shaft & Rotor Assembly Only | 264110 | |
| Inlet Check Valve Assembly | 262844 | |
| Inlet Screen | 264052 |
Oil Float Valve Box
Retrofitting your pump with an oil float valve box will allow the pump to run continuously at deep vacuum, while managing oil flow from the upper sump back to the cylinder. Helps to prevent oil discharge/smoking and the pump runs cooler! If you need to replace only the oil return valves, we have them in stock.
| Item | Part # | |
| Oil Float Valve Box | 262190 | |
| Oil Return Valve (2 at front) | 264050 |
Liquid Cooling Kit
If your pump is located in a high heat environment, the use of a liquid cooling kit can help to reduce oil temperature. Includes a plate type heat exchanger, filter adapter, oil lines, fittings, and mounting strap. Requires minimum source of chilled or city water.
| Item | Part # | |
| Liquid Cooling Kit | 262198 |
Motor
Heavy duty motors are applicable for 208, 230, or 460 volt, 3 phase power. The motors have a 1.25 service factor.
| Item | Part # | |
| 20 HP Motor, 286TC | 244256 | |
| 15 HP Motor, 284TC | 244255 | |
| Pump/Motor Mounting Feet | 264018 | |
| Temperature Switch - Normally Closed | 211039 |
Inlet Filters
Our liquid knock out separator has a clear bucket, stainless steel screen, float ball, and bottom drain. For demanding applications, our combination filter/liquid separator includes a polyester element that is 99+% efficient to 5 microns. Holding capacity is 2.5 gallons, with a bottom mounted drain. More filters available here.
| Item | Part # | |
| Inlet Filter With Paper Element | 233871 | |
| Liquid Knock Out Separator (3") | 233794 | |
| Combination Filter/Liquid Separator (3") | 233798 |
Filter and Maintenance Kits
Save money on service parts. We provide oil filters, exhaust filters, and rebuild kits, which include vanes, seals, bearings, gaskets, etc. Filters can be purchased individually or as part of a kit.
| Item | Part # | |
| Filter Kit: 8 exhaust filters, oil filter, gaskets for exhaust cover & separator | 264181 | |
| Exhaust Filter with O ring (8 needed) | 264085 | |
| Exhaust Filter Spring (8 needed) | 262107 | |
| Rebuild Kit: vanes, bearings, taper pins, exhaust valve seat plates | 264320 | |
| Gasket Kit, including Seals | 264183 | |
| Oil Filter | 264091 |
Oil
Synthetic 40 wt. vacuum pump oil provides long term durability, even in high heat environments. Available from stock in 1 gallon and 5 gallon containers.
| Item | Part # | |
| Oil, 40 wt. synthetic, 1 gallon | 249223 | |
| Oil, 40 wt. synthetic, 5 gallons | 249224 | |
| Oil, 40 wt. food grade, 1 gallon | 249230 | |
| Oil, 40 wt. food grade, 5 gallons | 249231 |
