Zhejiang Jiacheng New Material Co., Ltd. is one of the leading manufacturers and suppliers of silicone rubber valve seat in China, also supports customized service. Welcome to wholesale bulk high quality silicone rubber valve seat in stock here from our factory. If you have any enquiry about quotation and free sample, please feel free to email us.

_01

Size: OEM & ODM

Hardness: 30-80 Shore A

Main performance of silicone rubber valve seat

(1) High temperature performance. The remarkable feature of silicone rubber is its high temperature stability. Although the strength of silicone rubber at room temperature is only half that of natural rubber or some synthetic rubber, it can still maintain a certain flexibility, resilience and surface hardness under the high temperature environment above 200 ℃, with no significant change in mechanical properties.

(2) The glass transition temperature of low temperature performance silicone rubber is generally - 70~- 50 ℃, and the special formula can reach - 100 ℃, indicating its excellent low temperature performance. This is of great significance to the aviation and aerospace industries.

(3) Weathering resistance The Si-O-Si bond in silicone rubber is very stable to oxygen, ozone and ultraviolet rays. Without any additives, it has excellent weather resistance.

(4) Electrical performance. Silicone rubber has excellent insulating properties, corona resistance and arc resistance.

(5) Physical and mechanical properties. The physical and mechanical properties of silicone rubber at room temperature are worse than those of general rubber, but at 150 ℃ and - 50 ℃, its physical and mechanical properties are better than those of general rubber.

(6) Oil resistance and chemical reagent resistance. Common silicone rubber has medium oil resistance and solvent resistance.

(7) Gas permeability. The permeability of silicone rubber to air, nitrogen, oxygen, carbon dioxide and other gases at room temperature is 30-50 times higher than that of natural rubber.

(8) Physiological inertia. Silicone rubber is non-toxic, tasteless, odorless, does not adhere to human tissues, has anticoagulant effect, and has very little reactivity to body tissues. It is especially suitable for medical materials.

_02