Cork Gasket O Ring for Transformer /Cork Gasket Insulation Sheet

• Customization: Available
• Application: Electrical Winding Insulation, Winding Wire Coating Insulation
• Color: Brown
• Model NO.: o ring
• Material: Silicone
• Maximum Voltage: >100KV
• Thermal Rating: E 120
• Colour: Brown
• Usegae: Transformer Seal
• Chemistry: Hybrid Insulation
• Classification: Hybrid Insulation Materials
• Type: O Ring
• Transport Package: Pallets
• Specification: according to customer requirments
• Trademark: xincheng
• Origin: China
• Production Capacity: 1000000PCS

Product Description

 

Cork Gasket

Sealing material is compounded with Nitrite (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 strong       No less than   (MPA0	2.5	5
3	Permanent compression deformation Compression ratio25% 70ºC×22h     Not more than              %	55	38
4	Aging in hot air                 (100ºC×70h) The hardness change Weight change                            %	0~+10 -10~0	4             -2.8
5	water-tolerant   (100ºC×1h ) Volume change                              %	-10~+15	1.8
6	Resistance to 1# standard oil( 70ºC×22h) The hardness change Volume change              %	-10~+10 0~+10	2 3.2
7	Volatile oil standard B         (23ºC×24h) The hardness change Volume change                                     %	20~0 0~60	-10               30
8	Temperature index		-20ºCto 120ºC