Spring-Energized Metal Seals - Helicoflex

Metal seals for the most extreme applications with a flexible design. Spring-Energized metal seals utilize an combination of a helical spring surrounded by one or more layers of softer metal. The softer metal jacket flows into the flange groove finish so that a highly effective seal can be achieved. This type of seal was developed specifically for solving high risk nuclear flange applications. In addition to making a great seal for nearly every high temperature and high pressure application in every industry, the seal also can be manufactured in nearly any geometry from round, square, triangular, to oblong.

TYPICAL APPLICATIONS

Gas Turbines Combustion Cans, Steam Turbines, Heat Exchangers

Compressors, Fluorine Compressors, Valves, End Plate Covers

Diesel Exhaust, Combustion Seals / Fire Rings, Reactor Vessels

Pressure Vessels, Nuclear Storage, Nuclear Valves

Turbo Charger and Manifolds, Metal Diaphragm Compressors

FEATURES

Tightest metal sealing product available; thick outer jacket or plating with helically wound spring

Most flexible design for material compatibilities, size, cross sections, and performance

Temperatures from cyrogenic to over 2500F

Pressures up to 100,000 psi

For internal, external, and axial pressure applications

BENEFITS

Handles rougher surfaces than other metal seals

Variety of jacketed materials engineered with a light to heavy load internal spring to optimize performance

Available in many standard cross sections and custom sizes with low tooling costs

Ultra-high vacuum sealing levels

Reasonable cost product in higher volumes with excellent performance characteristics

MATERIALS

Jacket materials from silver, copper, Inconel® X750, nickel 201, soft iron and virtually any sheet material available in thin gage

Springs from carbon steel, Inconel® X750, Nimonic 90, and Inconel® 718

Lining materials made from stainless steels or other high temperature alloys

Other jacket materials are available for extreme operating conditions in Monel® 400, Hastelloy® C-276, and Inconel® 625

Fatigue resistant alloys are also available in L-605 and Inconel® 600

CONFIGURATIONS

Available in standard and custom cross sections from 0.060" to 0.750"

Diameters from 1/4" to 30 Feet

Availalbe for grooved and/or flat flanges

Can be made with integral carrier/compression stop for flat and/or tongue and groove flanges

Custom made for many flanges with existing grooves

Can be made in non-round geometries like rectangular , triangular, oval, lobed, etc.

Spring-Energized Metal Seals - Helicoflex

TYPICAL APPLICATIONS

FEATURES

BENEFITS

MATERIALS

CONFIGURATIONS

Seal & Gasket Design

Emergency Support

Quality Systems