English
Rectangular cross-section. Consists of two spiral windings which are cut at the ends at an angle of 30° or 45°. Designed for static and dynamic use, but when used in a dynamic application they should be used for reciprocating movements only. Compensates for large temperature changes and tolerances due to screw-like elongation and contraction. Material: PTFE
Installation Dimensions:
Bore Diameter DN H8 // Groove Diameter d6 H9280 mm
Groove Width b2 +0.2512.3 mm
Groove Width b3 +0.2515.1 mm
Radius, r ±0.20.25 mm
Groove Diameter d3 h9 // Rod Diameter dN f7267.8 mm
Material Properties:
Maximum Operating Temperature120 °C
Minimum Operating Temperature-45 °C
Hardness Nominal55
Hardness Tolerance+/- 5
Hardness UnitShore D
ColorWhite
Material TypePTFE
Tensile Strength20 MPa
Elongation at break250 %
Internal Sealing (Rod) and External (Bore) sealing:
Back-up Ring dimensions OD x W x T280.0 x 6.10 x 1.25 mm
O-Ring TSS Part No.ORAR00450
O-Ring dimensions d1 x d2266.07 x 6.99 mm
External Sealing (Bore):
O-Ring dimensions for internal sealing d1 x d2266.07 x 6.99 mm
Material Information for the product(s) on this page
PT008
Colour:
White
Basic Material:
PTFE
Hardness:
55 (Shore D)
Commercial Description:
Unfilled PTFE. This material is standard for back-up rings. Unfilled PTFE helps prevent extrusion in low- to medium-duty applications where an O-ring used by itself would not be suitable.