The WDT Wiper is a Double Lip Wiper Seal, composing of two elements. The
dynamic seal is a ring in TRIALON® (compounded PTFE) while the static
sealing is by two O-Rings in TRIAFLEX®, also acting as an energizer. The
presence of two O-Rings helps in balancing the Seal, particularly when the
Wiper Seal is left to experience any spike pressures and also gives added grip
on to the Rod surface. Assembling is bit easier compared to WDE & WDF
type seals, due to the narrow cross section of the WDT type Seal.
Depending on the application, media, cycle speed etc., the PTFE compound is
selected and the O-Ring compound is selected considering the media
compatibility, temperature etc.
The lip at the outer edge avoids the dust particles entering into the system
for axially moving rods, hence eliminates the damage for other seals and
Ø4.00 – Ø2700.00
TRIALON® T415 (Bronze Filled PTFE) with Energiser in
TRIAFLEX® T571 (NBR) (Other Compounds available,so
as to suit the Application Conditions).