Type BP (Spiral)

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

Seal Capabilities

  • Size Range: 5 mm to 115 mm
  • Temperature: -200 °C to 260 °C
  • Pressure (max): 25 MPa

Material Information for the product(s) on this page 

PT00
Material Data Sheet (PDF) Only available for the registered users.
Colour
white to offwhite
Basic Material
PTFE
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.
PT008
Material Data Sheet (PDF) Only available for the registered users.
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.
Product No. Material Bore Diameter DN H8   //   Groove Diameter d6 H9 (mm) Groove Diameter d3 h9   //   Rod Diameter dN f7 (mm) Back-up Ring dimensions OD x W x T (mm) Price
(per piece)
Quantity
(pieces)
Total
Amount
Availability