Sealing material is compounded with Nitrile (NBR)rubber.This product is suitable for most transformer oils at application

 

 

Date sheet

Serial
number
Test project Index The test results
1 Hardness (Shore) 80±10 82
2 Tensile streng    No less than  (MPA0 2.5 5
3 Permanent compression deformation     Compression ratio25%
70℃×22h  Not more than        %
55 38
4 Aging in hot air      (100℃×70h)
The hardness change 0~+10 4
Weight change                % -10~0 -2.8
5 water-tolerant  (100℃×1h )
Volume change                 %
-10~+15 1.8
6 Resistance to 1# standard oil  ( 70℃×22h)
The hardness change -10~+10 2
Volume change        % 0~+10 3.2
7 Volatile oil standard B     (23℃×24h)
The hardness change -20~0 -10
Volume change        % 0~60 30
8 Temperature index -20℃to 120℃

– Proven long term performance in the field;
– Products with wide load range and suitable for extreme operation temperatures;
Tolerance to extreme surface finish conditions and high out-of-flatness flanges;
– Experience in designing gaskets for multiple industries and applications.