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ERIKS RX® Firechem®

RX® Firechem® Flange Gasket

The innovative material combination of pure exfoliated graphite (min 98%), reinforced with stretched stainless steel, and expanded PTFE. RX® Firechem® complies with the strongest requirements of the FIRE-safe test ISO 10497 and can also be placed in contact with the most versatile, aggressive and flammable chemicals. RX® Firechem® solves the problematic combination of high chemical resistance and fire security, required by the SEVESO directive.

Application

  • Resistant to all media in the range 0 to 14 pH. At the exception of molten alkali, fluor and fluorinated gasses particularly at high pressures and high pressures.
  • Ideal for worth flange conditions.
  • Excellent results where low bolt loads are available for instance in low pressure class flanges.

Delivery standards

Can be manufactured in all dimensions and forms: Standards to EN1514-1, EN12560. Non-standard as frames, oval manhole, heat-exchanger gaskets and all complicated shapes. Can be produced in very short time. Tolerances to DIN 7715-5-M.

Approvals

Fire safe ISO 10497 (replaces BS6755, API 607)
DVGW: Natural gas
KTW : potable water
BAM: Oxygen

Features

  • unique combination
  • quick supply production
  • very large application fields
  • soft gasket
  • patent pending

All possible shapes can be manufactured in no-time. Everything is possible, even within one hour shipping of a finished gasket. Applicable in chemical as petrochemical where security is prior. RX® Firechem® can perfectly be used where low bolt and gasket stresses are present. This is particulary the case in low pressure flanges like PN 10/16 and 150/300 lbs.

Technical data

Standard External ring Inner ring Unity
General data
Basic material expanded graphite
expanded PTFE with multidirectional fibre structure 
fillers without without
Binder without without
Insertion stainless steel without
Color
Black (graphite) white
Identification
DIN E 28091 T2 GR-10-O-1MK-Cr TF-O-O
Application field Min.  temperature constant
-200 °C
Max. temperature constant
260 °C
Maximum Pressure
200 (3) 210 (3) bar
Physical properties for a thickness of 2 mm
Density
1,35 ±0,15 0,6
g/cm³
Compressibility ASTM F36 J 30….45 60 %
Recovery ASTM F36 J 15 10 %
Tensile strength DIN 52910 20 (2) N/mm²
Specific leak rate
DIN 3535-6 < 1 (1) ml/min
Leak rate λ 2.0
DIN 28090-2 < 0,05 (1) mg/s*m
Relaxation ASTM F 38 (1)
15 %
Residual stress
150 °C – 50 N/mm2

DIN 52913 47 (1) N/mm²
Values for calculation codes
ASME & EN 13445-3
m 2
y 15 N/mm²
DIN 28090-1 minimum stress
DIN 28090-1 15 N/mm²
DIN 28090-1 maximum stress
DIN 29090-1 170 N/mm²

  1. Not available on date of printing
  2. Not applicable
  3. Depending on bolt load

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