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Spring-loaded seal U-TIGHTSEAL
elastomericC-ringvacuum

Spring-loaded seal - U-TIGHTSEAL - Usui Co., Ltd - elastomeric / C-ring / vacuum

Spring-loaded seal - U-TIGHTSEAL - Usui Co., Ltd - elastomeric / C-ring / vacuum - image - 2

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Characteristics

Type

spring-loaded

Material

elastomeric

Configuration

C-ring

Application

metal, for high-temperature applications, vacuum, for valves, O-ring, for fuel cells, for corrosive liquids

Fluid

oil, for water, air, for gas, for steam, fuel

Temperature limit

Min.: -271 °C
(-456 °F)

Max.: 500 °C
(932 °F)

Pressure limit

80 MPa

Diameter

Min.: 6.6 mm
(0.26 in)

Max.: 2,000 mm
(78.74 in)

Outer diameter

Min.: 10.4 mm
(0.409 in)

Max.: 2,028.4 mm
(79.858 in)

Description

U-TIGHTSEAL is a metal gasket with a built-in elastic core (coil spring). Although it is made of metal, it exhibits properties similar to elastomer (rubber) due to its excellent compression and recovery properties. The shape is a ring with a circular cross section, and the structure consists of a tightly wound elastic core in the center, which is covered with one or two layers of covering. The outer coating is made of a familiar, ductile metal, and the inner coating, in the case of two layers, is made of a relatively hard metal. This product is used in applications such as vacuum and ultra-high vacuum, accelerator facilities, nuclear power, space engineering, and valves, where the use of elastomer O-rings and gaskets is prohibited due to issues such as temperature, corrosion, pressure, radiation, gas release, and durability requirements. Can be used in restricted locations.