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New products
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Lens Ring Joint Gasket
If you are willing to import customized and good quality high lumen Lens Ring Joint Gasket from a such manufacturer and supplier, or you are going to check CREE, EMC, CE and OEM Lens Ring Joint Gasket price and quotation with a such exporter, providing with Lens Ring Joint Gasket enquiry, welcome to contact us.
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Double Jacket Gasket
If you are willing to import customized and good quality high lumen Double Jacket Gasket from a such manufacturer and supplier, or you are going to check CREE, EMC, CE and OEM Double Jacket Gasket price and quotation with a such exporter, providing with Double Jacket Gasket enquiry, welcome to contact us.
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Corrugated Gaskets
If you are willing to import customized and good quality high lumen Corrugated Gaskets from a such manufacturer and supplier, or you are going to check CREE, EMC, CE and OEM Corrugated Gaskets price and quotation with a such exporter, providing with Corrugated Gaskets enquiry, welcome to contact us.
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PTFE Envelope Gasket
If you are willing to import customized and good quality high lumen PTFE Envelope Gasket from a such manufacturer and supplier, or you are going to check CREE, EMC, CE and OEM PTFE Envelope Gasket price and quotation with a such exporter, providing with PTFE Envelope Gasket enquiry, welcome to contact us.
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Rubber Sheet
If you are willing to import customized and good quality high lumen Rubber Sheet from a such manufacturer and supplier, or you are going to check CREE, EMC, CE and OEM Rubber Sheet price and quotation with a such exporter, providing with Rubber Sheet enquiry, welcome to contact us.
Constant seating stress gaskets
HIT:18 DATE:2015/3/25
The constant seating stress gasket consists of two components; a solid carrier ring of a suitable material, such as stainless steel, and two sealing elements of some compressible material installed within two opposing channels, one channel on either side of the carrier ring. The sealing elements are typically made from a material (expanded graphite, expanded polytetraflouroethylene (PTFE), vermiculite, etc.) suitable to the process fluid and application. Constant seating stress gaskets derive their name from the fact that the carrier ring profile takes flange rotation (deflection under bolt preload) into consideration. With all other conventional gaskets, as the flange fasteners are tightened, the flange deflects radially under load, resulting in the greatest gasket compression, and highest gasket stress, at the outer gasket edge.
Since the carrier ring used in constant seating stress gaskets take this deflection into account when creating the carrier ring for a given flange size, pressure class, and material, the carrier ring profile can be adjusted to enable the gasket seating stress to be radially uniform across the entire sealing area. Further, because the sealing elements are fully confined by the flange faces in opposing channels on the carrier ring, any in-service compressive forces acting on the gasket are transmitted through the carrier ring and avoid any further compression of the sealing elements, thus maintaining a 'constant' gasket seating stress while in-service. Thus, the gasket is immune to common gasket failure modes that include creep relaxation, high system vibration, or system thermal cycles. The fundamental concept underlying the improved sealability for constant seating stress gaskets are that
(i) if the flange sealing surfaces are capable of attaining a seal,
(ii) the sealing elements are compatible with the process fluid and application, and
(iii) the sufficient gasket seating stress is achieved on installation necessary to affect a seal, then the possibility of the gasket