What does CG stand for on a gasket?

centers gasket on flange face, provides. additional radial strength to prevent gasket. blow-out and acts as a compression stop. A general purpose gasket suitable for use.

What is a flexitallic gasket?

The Flexitallic Spiral Wound Gasket is the precision-engineered solution for flanged joints, heat exchangers, boiler handholes, manholes and other high temperature, high pressure applications—providing resistance to virtually every known corrosive and toxic element.

What are flexitallic gaskets made of?

Flexitallic colour coding meets the industry standard for metal and filler materials listed in ASME B16. 20. Thermiculite®, FLEXITALLIC’S proprietary high-temperature, sealing material is comprised of chemically exfoliated and thermally exfoliated vermiculite.

What is a CGI spiral wound gasket?

The CGI is a CG style spiral wound fitted with an internal ring which gives an additional compression limiting stop and prevents inward buckling ring. The inner rings are typically made from the same material as the windings, but can be produced in other alloys depending on service.

What is the purpose of inner ring in spiral wound gasket?

Spiral Wound Gaskets The inner ring prevents inner buckling of the sealing element, and creates a physical barrier that shields the sealing element from heat and media while preventing erosion.

What are spiral wound gaskets used for?

A Spiral Wound Gasket is the most common metallic gasket used in industrial plants. A properly selected and installed spiral wound gasket can withstand high temperatures and pressures, preventing leaks throughout their intended lifespan.

Are flexitallic gaskets reusable?

Some fabricators consider that it is safe to reuse ring joint gaskets for hydrotest purpose. However this is not the case….Is it safe then to reuse the gaskets only for hydrotest purpose.

What is m and y values for gaskets?

m represents the maintenance factor and the y represents the seating stress. y is the minimum compressive stress on the contact area of the gasket necessary to provide a seal at an internal pressure of 2 psig and applied to compress the voids of the gasket to conform to the flange surface.

Do spiral wound gaskets contain asbestos?

Asbestos Spiral Wound Gaskets: This sophisticated type of gasket is made from concentric layers of metal and asbestos. The product’s design is extremely strong, but it still leaves nearly pure asbestos fibers exposed to the open air.

Can you use spiral wound gasket on flat face?

Style CGI spiral wound gaskets are suitable for use on flat-face and raised-face flanges, and can be specified for high-pressure/temperature service or where corrosive or toxic media are present. The inner rings of style CGI spiral wound gaskets add strength against blowout and act as a compression stop.

Can spiral wound gaskets be reused?

Spiral-wound designs have layers of V-shaped metal and gasket material wound to create a gasket. With proper maintenance, which includes sealer reapplication, these gaskets can be reused.

Are Kammprofile gaskets reusable?

Kammprofile gaskets offer value for money mainly because they are reusable! Manufacturers of kammprofile gaskets regularly refurbish used gaskets for industrial users, helping to add to your savings over the years and increase the lifespan of your gaskets overall. They’re resistant to hazardous chemicals.

What is the purpose of a style CG gasket?

The Style CG provides additional radial strength to prevent gasket blowout and acts as a compression stop. A general purpose gasket suitable for use with flat face and raised face flanges.

What is the flexitallic spiral wound gasket used for?

The Flexitallic spiral wound gasket is the precision-engineered solution for flanged joints, heat exchangers, boiler handholes, manholes, and other high-temperature, high-pressure applications—providing resistance to virtually every known corrosive and toxic element. High temperature filler material for spiral wound gaskets.

What kind of filler is used for MC gaskets?

They are manufactured with high purity Flexicarb flexible graphite filler or PTFE filler for optimum sealability, and are available for the full range of standard Class 150 and Class 300 flanges, as well as other non-standard low pressure flanges. Style MC gaskets have pre-formed inner and/or outer rings made of spiral windings.

Which is the best material for flexitallic gasket?

Thermiculite 815® is a high temperature sheet material reinforced with stainless steel tanged core. Modified R-oval or R-octagonal with inner section matched to the bore. Flexitallic SF4300 is a premium compressed sheet gasket material based on a blend of organic and glass fibres, bound with a high quality rubber binder.