The image shows a collection of mechanical parts, including a spring-loaded valve, a cylindrical filter, and several rectangular metal plates.

Blow-off valve
Filter cartridge
Carbon vanes

Spare parts for Rotary vane vacuum pump VT 4.10

Replace worn components individually and maintain reliable vacuum pump performance.
Blow-off valve, filter cartridge and carbon vane set for the oil-free VT 4.10 rotary vane vacuum pump. These individually available spare parts allow targeted maintenance and repair, helping to restore proper operation in cases of reduced pumping capacity, contaminated inlet filtration or wear-related malfunctions.

The VT 4.10 rotary vane vacuum pump is used for applications including vacuum bagging, vacuum pressing and resin infusion of large composite components. Reliable operation depends on the condition of its mechanical components and inlet air filtration system.

Using the appropriate spare parts, individual components can be replaced without having to replace the complete pump. The blow-off valve, filter cartridge and carbon vane set are available separately.

Available Versions and Scope of Supply

Version	Scope of supply	Item No.
Blow-off valve	1 piece	3901031-AV
Filter cartridge	1 piece	3901031-FP1
Carbon vane set	1 set of 7 carbon vanes	3901031-KS

Function of the Spare Parts

Blow-off valve
The blow-off valve provides the intended pressure relief on the discharge side of the pump. A correctly functioning valve is essential for proper pump operation. It can be replaced individually if damaged or malfunctioning.

Filter cartridge
The filter cartridge traps airborne particles and contaminants before they enter the pump. This protects internal mechanical components against contamination and associated wear.

A contaminated or clogged filter cartridge can restrict airflow and reduce pumping capacity. Regular inspection and replacement when necessary help maintain consistent performance.

Carbon vane set
The carbon vanes are essential wear components of the oil-free rotary vane pump. They move within slots in the rotor and, together with the pump housing, form the pumping chambers in which air is drawn in, compressed and discharged.

As the vanes operate in contact with the inner surface of the pump housing, they are subject to gradual wear. Excessive wear can reduce pumping capacity and affect the ultimate vacuum level.

The carbon vane set contains seven vanes for replacement as a complete set. Replacing all vanes together helps maintain uniform operating conditions within the pump.

Compatible Vacuum Pump

Pump model	VT 4.10
Pump type	Oil-free rotary vane vacuum pump
Nominal pumping capacity	10 m³/h (approx. 166 l/min)
R&G pump item number	3901031-DS

Maintenance and Replacement

Maintenance intervals and permissible wear limits depend on operating conditions and the pump manufacturer's specifications. In particular, the filter cartridge and carbon vanes should be inspected regularly in accordance with the operating instructions.

Replacement is recommended only for experienced users or appropriately qualified personnel. Before carrying out maintenance work, switch off the pump, disconnect it from the electrical supply, secure it against accidental restart, release any residual vacuum and allow the pump to cool down completely.

When working on internal pump components, follow the manufacturer's assembly instructions and specified wear limits. After replacing components, check the pump for correct operation.