PISTON SEAL KT3

STANDARD SEAL DIMENSIONS

DESCRIPTION

The KT3 seal is designed to be a piston seal with interchangeable seats ISO 6547. It consists of only three elements: a polyurethane seal at the middle and two side wiper rings in glassfilled polyacetal resin. This system doesn’t need anti-extrusion supports, Thanks to the high modulus of elasticity and the hardness of the central element higher hardness then Nitrile rubber NBR. The friction (first operation and in working condition) is low thanks to the particular geometric shape of the seal.

TECHNICAL DATA

Pressure: from 0 to 300 Bar with peaks up to 400 Bar at 60° C.
Speed: 0.8 m/s
Temperature: from – 30° C to + 100 ° C
Fluids: mineral oils

MATERIAL

The materials used for the construction of this type of seal are:
– polyurethane for the central element, hardness 93 Shore A
– glass-filled polyacetal resin (POM) for the side elements

ASSEMBLING

This seal can be assembled both in closed groove on a mono-block piston and in open groove on a twopart piston. Avoid machining scores on the piston which may damage the sealing during the installation.