Leader ClipperlonModified PTFE Gaskets

Leader Clipperlon 2120

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Description

Modified PTFE gasket material containing biaxial orientated chains to obtain a tight seal for demanding applications. Clipperlon 2120 is a very dense material with low compressibility, high recovery and low creep properties. Off-white in color and produced with Modified PTFE and barium sulfate filler. Clipperlon 2120 particularly suitable for use with hydrofluoric acid and chlorine applications and a wide variety of different media across the whole pH-range. Due to the high density this material is highly recommended for applications with monomers to avoid the ‘popcorning’ effect. This effect will be result when the monomer enters the micro-voids of the PTFE.

Available also for Heat Exchanger applications.

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Product Data Sheet

Application

Particularly suitable for use with hydrofluoric acid and a wide variety of different media across the whole pH-range. Applications can be found in chemical, pharmaceutical, food and beverage and general industry. Due to the high density this material is highly recommended for applications with monomers to avoid the ‘popcorning’ effect. This effect will be result when the monomer enters the micro-voids of the PTFE.

Advtantages

Clipperlon 2120 particularly suitable for use with hydrofluoric acid and chlorine applications and a wide variety of different media across the whole pH-range. Due to the high density this material is highly recommended for applications with monomers to avoid the ‘popcorning’ effect. This effect will be result when the monomer enters the micro-voids of the PTFE.

Chemical Compatiblity

Particularly suitable for use with hydrofluoric acid, but not pure hydrogen fluoride. Best for use with strong alkalis, solvents, fuels, water, steam and chlorine. Other applications include solvents, fuels, water, oil, chlorine and caustics. A chemical resistance listis available upon request.

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 Edrawing.

Temperature

Temperature from -450 ºF up to 500 ºF.

Approvals & Certificates

FDA 21 CFR 177.1550
TA-Luft
EC1935 (10/2011)
Pamphlet 95 (Cl)
FDA 21 CFR 177.1550
TA-Luft
EC1935 (10/2011)
Pamphlet 95 (Cl)

Sealing Characteristics

significant reduced creep (non-cold flow)
low leak rate
good electrical insulation properties
outstanding chemical resistance
Non-ageing
excellent sealability

Technical Data
max Temperature [°F]	500
max Temperature [°C]	260
max Pressure [psi]	1200
density [g/cm3]	2.8
Leakage Specific Leak Rate [DIN 28090-2] [mg/(s*m)]	0.01
Minimum initial stress [DIN E 2505 part 2] [N/mm2]	20
Maximum initial stress [DIN E 2505 part 2] [N/mm2]	200
M-Value	3.5
Y- Value [psi]	2450
ASTM F36 Recovery [% min]	40
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]	432
ROTT [a]	0.318
ROTT [Gs"]	0.964
compressability, [ASTM F36], [%]	4-8
ASTM F36 Recovery [% min]	40
ASTM F37 Sealability [ml/min] Sg=1000 psi=30	0.01
ASTM F38 Creep Relaxation [%]	13
ASTM F152 Average Tensile [psi]	2000

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