Replace worn pump head components and maintain reliable vacuum performance.
This 7-piece spare parts kit for R&G vacuum pumps P2-N and P3 includes a diaphragm, head gasket, valve springs and the corresponding fastening screws. It provides the essential components for servicing and repairing the pump head, particularly when suction performance deteriorates due to worn or damaged sealing and valve components.
In diaphragm vacuum pumps, the diaphragm and valve components are essential for generating vacuum. The reciprocating movement of the diaphragm produces the pumping action, while the valves control airflow through the pump. Wear or damage to these components can reduce pumping performance and affect the achievable ultimate vacuum.
The spare parts kit contains the principal components required for servicing the pump head. Replacing worn components can restore proper pump operation and vacuum performance, provided that the affected components are responsible for the malfunction.
Kit Contents and Technical Details
| Component |
Quantity and Specification |
| Diaphragm |
1 pc., N035, EPDM (Einl31) |
| Head gasket |
1 pc., N035, neoprene |
| Valve springs |
2 pcs., N035 |
| Socket head screws |
2 pcs., N035, stainless steel 1.4305 |
| Countersunk screw |
1 pc., ISO 10642, M6 × 16, A4-70 |
| Item No. |
3901012-E |
Benefits
- Complete 7-piece kit for servicing the pump head
- Includes diaphragm, head gasket, valve springs and fastening screws
- Allows worn or damaged components to be replaced without replacing the entire pump
- Suitable for restoring vacuum performance affected by component wear
Compatible Vacuum Pumps and Spare Parts
The spare parts kit is intended for the following R&G vacuum pumps:
If only the diaphragm requires replacement, it is also available separately:
Replacement diaphragm for vacuum pumps P2-N, P3 and P3-SPECIAL
Applications and Maintenance
The kit is designed for servicing and repairing the pump head. Replacement may be necessary if the pump no longer delivers its normal suction performance or fails to achieve the specified ultimate vacuum, despite the vacuum system being properly sealed.
Before replacing the components, check whether the loss of performance actually originates in the pump head. Leaking hose connections, damaged vacuum lines or contaminated filters can also impair vacuum performance.
In composite manufacturing, reliable vacuum generation is particularly important for vacuum bagging, laminate consolidation and other vacuum-assisted processing operations.
