DESCRIPTION

An asbestos free sheet sealing material composed of Kevlar aramid fibres and high temperature resistant mineral fillers, bonded with NBR elastomer

SERVICE

General service material suitable for a wide range of applications including: hot and cold water, low pressure steam, oils, fuels, gases and a wide range of general chemicals. Suitable for public utilities, chemical plants, oil industry, etc.

 

Max recommended temperature : SHORT TERM 350°C

Max recommended temperature : OPERATING 250°C

Max recommended temperature : OPERATING STEAM 200°C *

Max recommended pressure : 10MPa / 80 BAR / 1144 PSI

 

These temperature and pressure guides cannot necessarily be used simultaneously and may not apply to all thicknesses. The operating temperature for non-asbestos sheet materials is related to the thickness of the material. Thinner materials offer better temperature and pressure properties.

 

 APPROVALS/COMPLIANCE

DIN-DVGW (Gas Industry) NG-5123 AO1021

WRAS Potable Water Certificate No. 0008505

Complies with BS specification 7531 Grade Y

ALL PRESSURES AND TEMPERATURES ARE SUBJECT TO INDIVIDUAL APPLICATION

TYPICAL PHYSICAL PROPERTIES ‘Y’ NAF

Thickness * 1.5mm *
Density 1.90 g/cc
Tensile Strength ASTM F152 12.0 MPa
Compression ASTM F36J 7% to 12%
Recovery ASTM F36J 60%
Residual Stress BS7531 40N/mm² @ 300°C 23 MPa
Gas Leakage BS7531 <0.5ml/min
ASTM Oil 1 ASTM F146 2.5%
ASTM Oil 3 ASTM F146 5.0%
ASTM Fuel B ASTM F146 4.0%