Zhejiang, China
Business Type:
Manufacturer/Factory & Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
Average Lead Time:
Peak season lead time: one month
Off season lead time: one month
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Spiral wound gasket, spiral gasket, Spirally wound gasket manufacturer / supplier in China, offering Spiral Wound Gasket with Inner Ring and Outer Ring (RS-5001), Asbestos Packing, EPDM Sheet (RS-5038) and so on.

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Supplier Homepage Products Gasket Series Spiral wound gasket Spiral Wound Gasket with Inner Ring and Outer Ring (RS-5001)

Spiral Wound Gasket with Inner Ring and Outer Ring (RS-5001)

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Specification: ASME, BS, JIS and EN(DIN) standards and others
Trademark: Rilson

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Basic Info

Model NO.: RS-5001

Product Description


This gasket is identical to the basic type, however an inner ring has been inserted to enhance gasket performance and an external guide ring accurately centers gasket on flange face. The inner ring is added to prevent the possibility of the gasket imploding into the pipe during installation, to protect the sealing element from extreme temperatures and mediums, fill the void between flanges to prevent erosion of the flange, and to reduce the possibility of failure. The inner ring is normally made of the same alloy as the winding. The DIN 2699 standard (German) specifies inner rings in all spiral wound gaskets. Inner rings are required for gasket with PTFE filler according to ASME B16.20 standards, and considered important for graphite fillers. This profile is normally used in raised and flat faced flanges. The external ring a provides additional radial strength to prevent gasket blowout and acts as a compression stop. The outer ring is often made of carbon steel (painted or zinc plated to prevent corrosion) but can be made of alloys for higher temperature and more severe medium applications.

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