Leader ClipperlonModified PTFE Gaskets
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Leader Clipperlon 2115 USP

Description

Modified PTFE gasket material manufactured with bi-axial orientated chains to obtain a tight seal for demanding applications. This material has a rather high compressibility characteristics and low minimum seating stress value. Therefore this material is highly recommended for low torque applications, plastic pipe systems and flanges, as well as glass and ceramic lined equipment. White in color and produced with Modified PTFE and hollow glass microspheres as a filler. Special developed for pharma applications.

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Product Data Sheet

Application

Specially developed for high purity applications like pharmaceutical, Semicon, food and special beverage. Optimal in applications with low bolt loaded constructions for sealing applications across whole pH-range: Therefore extremely suitable for glass, ceramics, and plastic lined or distorted flanges and even flanges with light surface irregularities. The material is USP class VI plastics (USP 88) listed and meets Food & Diary requirements FDA 21 CFR. 177.1550 and EC 1935/10/2011.

Chemical Compatiblity

Particularly for use with strong acids (except hydrofluoric acid) and alkalis. Other applications include solvents, fuels, water and oil. A chemical resistance list is available upon request. Pressure up to 800 psi. Temperature from -410 °F up to 500 °F.

Delivery Options

Flange gaskets and sheets are available in thickness of 1/32",1/16", 1/8". Other thicknesses available on request. Standard gaskets can be supplied in accordance with ASME B16.21. Non-standard or special gaskets can be manufactured according to customer drawings, or by given sizes or E-drawing.

Temperature

Particularly for use with strong acids (except hydrofluoric acid) and alkalis. Other applications include solvents, fuels, water and oil. A chemical resistance list is available upon request. Pressure up to 800 psi. Temperature from -450 °F up to 500 °F.

Approvals & Certificates

  • FDA 21 CFR 177.1550
  • TA-Luft
  • EC1935 (10/2011)
  • USP VI 121 C
  • EC1935 (10/2011)
  • FDA 21 CFR 177.1550
  • USP VI 121 C
  • TA-Luft

Sealing Characteristics

  • outstanding chemical resistance
  • low leak rate
  • good electrical insulation properties
  • significant reduced creep
  • non ageing
  • excellent seal ability for low torque applications
Technical Data
max Temperature [°F]500
max Temperature [°C]260
max Pressure [psi]800
density [g/cm3]1.7
Leakage Specific Leak Rate [DIN 28090-2] [mg/(s*m)]0.02
Maximum initial stress [DIN E 2505 part 2] [N/mm2]100
M-Value3
Y- Value [psi]1600
min Seating stress [Qmin(L 0,01), mg/(s*m)] at RT 40 bar [N/mm2]20
ASTM F36 Recovery [% min]30
Gasket required flange roughness [Ra micron]3,2-6,3
Gasket required flange roughness [RMS]125-250
max Seating stress [Qsmax bei RT EN13555] [n/mm2]100
Tensile Strength (quer) DIN 52910 [N/mm²]>= (13) 1885
Advice Seating stress at assembly [psi]5000
ROTT [Gb]458
ROTT [a]0.3
ROTT [Gs"]5.37
compressability, [ASTM F36], [%]30-40
ASTM F36 Recovery [% min]30
ASTM F37 Sealability [ml/min] Sg=1000 psi=300.02
ASTM F38 Creep Relaxation [%]27
ASTM F152 Average Tensile [psi]2000

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