V-Seal set packings
V-Seal Set packings are primarily used as multi-component sealing kits for translational movements and thanks to their low friction and pretensioning, are a worthwhile alternative to packing seals.
Consisting of a compression ring, several V-packing rings and a backup ring, V-Seal Set packings made by Freudenberg Process Seals are the ideal sealing component for reliably sealing spindles on control and shut-off valves, rods on plunger pumps and hydraulic cylinders as well as pivot joints and mixers. Predominantly used for translational movements, but also for slow rotational movements, our V-Seal Set packings are very impressive due to their low friction and significantly lower axial load than for example with stuffing box packings.
Our V-Seal Set packings are manufactured by machining semifinished products in the standard material types PTFE and PTFE-carbon compounds and there therefore particularly cost-effective. We offer special designs made of PTFE impregnated Nomex fabric for higher pressures, as well as of polyethylene, PEEK and Univerdit (a compound of PTFE and graphite).
A summary of the advantages
- Great application variability
- High pressure resistance (PTFE and PTFE compounds up to 30 MPa, fabric-reinforced V-Seal Set packings up to 70 MPa)
- Excellent temperature resistance (–200 to +260 °C)
- No tooling costs for PTFE/PTFE compound variants
- Variable setting heights
- Low friction
- Universal chemical resistance
- Low cold flow and extrusion tendency with PTFE fabric
- Multi-component sealing kit, consisting of compression ring, V-packing rings and backup ring
- Sealing predominantly for translational movements, in individual cases for slow axial movements
PTFE and PTFE compounds
- available in all inventory-standard dimensions
- customer-specific dimensions are possible
PTFE fabric
- Comprehensive range of tools available
- Customer-specific special dimensions available on request
|
PTFE and PTFE- |
DM 9403, stable profile for static sealing and pulsating pressures up to 300 bar DM 9406 relatively rigid lip profile for dynamic sealing and pressures up to 200 bar DM 9409 flexible lip profile for dynamic sealing and pressures up to 50 bar as well as vacuum |
|
PTFE fabric |
Packing rings made of PTFE-impregnated fabric or for certain applications packing ring combination of PTFE-impregnated fabric and PTFE/PTFE compound for pressures up to 700 bar with low friction |
Primary applications for V-Seal Set packings:
- Control and shut-off valves
- Dosing systems
- Mixers
- Pivot joints
Primarily used in the sealing points:
- Spindles of regulation and control valves
- Rods (translatory motion, possibly in combination with minor rotation)
- Low speed shafts