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MAXIFLEX SPIRAL WOUND GASKETS

Maxiflex spiral wound gaskets combine the ease of sealing of a graphite, PTFE or mica filler with the strength afforded by a specially profiled metallic, spring-like reinforcement. The sealing element is manufactured by interleaving plies of alternating metallic winding strip and filler to create a gasket that is robust and easy to install.

Maxiflex spiral wound gaskets can be manufactured from a wide range of metals to resist chemical attack and temperature related degradation and used in combination with either graphite, PTFE or mica filler.

Properties of Maxiflex

  • Creates a very leakight, reliable seal.
  • Suitable for high temperatures and pressures.
  • Can be manufactured to suit standard flanges and also custom-designed vessels.

Below are the most common gasket configurations.

Maxiflex Style CRIR

  • Solid metallic inner & outer ring.
  • Suitable for high pressure and temperature applications.
  • Standard spiral wound gasket for raised face applications.
  • Prevents turbulence and erosion damage to flange.
  • Prevents damage to the gasket bore and inner windings.
  • Inner ring acts as a heat shield and as a corrosion barrier.
  • Wide choice of materials for filler and metal strip.
  • General and critical duties.

Maxiflex Style CR

  • Solid metallic outer ring used as a centering device and compression stop.
  • Used mainly on raised face and flat face flanges.
  • Wide choice of materials for filler and metal strip.
  • General duties.

Maxiflex Style RIR

  • Solid metallic inner ring.
  • High pressure & high temperature capability.
  • Male to female flanges in vessels, valves and pumps.
  • Wide choice of materials for filler and metal strip.
  • General and critical duties.

Maxiflex Style R

  • Wide choice of materials for filler and metallic strip.
  • Suitable for high pressure and temperature applications.
  • Recommended fl anges - tongue & groove, male to female and flat face to recess in vessels, valves and pumps.
  • General and critical duties.

Maxiflex Style R Graflex Faced

  • Covered with 0.5mm Graflex facings.
  • Used on manhole covers, vessels, valves and pumps.
  • Low bolt load applications.
  • Uneven sealing faces.
  • Used in tongue & groove, male to female and flat face to recess flanges.

Type HTX (for heat exchanger applications)

  • A combination of inner and outer rings.
  • The inner ring could have pass bars or could carry either a metal clad or soft gasket with pass bars.
  • Manufactured to customer designs.
  • Wide choice of materials for filler and metal strip.
  • Manufactured with thin outer windings to create stable, large diameter gaskets for narrow heat exchanger applications.

Maxiflex Graphite Filled

Applications

  • Used for a wide range of media including steam, oil, hydrocarbons and many chemicals
  • Used for applications requiring high integrity sealing performance

Typical Properties

  • High pressure gasket designed for raised face and flat face applications
  • Excellent tightness properties even under fluctuating load
  • Easy to handle and install
  • Inner ring protects windings against media and adds stability at higher pressures and for larger gasket diameters.

Typical Specifications

MaterialSealing element: Graphite/316L
Centering ring: Carbon steel
Inner ring: 316L
Max. temperature: 500ºC.
Max. pressure >400 bar
SuitabilityFor flanges to: ASME B16.5,
DIN standards,
BS 10,
JIS standards
and custom designs

Maxiflex PTFE Filled

Applications

  • Used for applications demanding outstanding chemical resistance

Typical Properties

  • High integrity gasket designed for raised and flat face applications
  • Resistant to virtually all chemicals
  • Robust and easy to handle and install
  • Inner rings must be used with PTFE sealing material
  • Inner ring protects windings against media and adds stability at higher pressures

Typical Specifications

MaterialSealing element: PTFE/316L
Centering ring: Carbon steel
Inner ring: 316L
Max. temperature: 260ºC
Max. pressure <100 bar
SuitabilityFor flanges to: ASME B16.5,
DIN standards,
BS 10,
JIS standards
and custom designs

Maxiflex Mica Filled

Applications

  • High temperature and high pressure applications

Typical Properties

  • High pressure gasket designed for raised face and flat face applications
  • Excellent tightness properties even under fluctuating load
  • Easy to handle and install
  • Inner ring protects windings against media and adds stability at higher pressures and for larger gasket diameters.

Typical Specifications

MaterialSealing element: Mica/ Inconel 600
Centering ring: Inconel 600
Inner ring: Inconel 600
Max. temperature: 1000ºC
Max. pressure >100 bar
SuitabilityFor flanges to: ASME B16.5,
DIN standards,
BS 10,
JIS standards
and custom designs

MaxiZonal

Applications

  • Used for high temperature applications where high levels of tightness are required

Typical Properties

  • The KLINGER MaxiZonal spiral wound gasket combines mica and graphite in one sealing element
  • Mica provides excellent thermal properties and protects the graphite from oxidation
  • Expanded graphite imparts excellent sealing characteristics
  • Unaffected by most chemicals
  • Excellent tightness even under fluctuating loads

Typical Specifications

MaterialSealing element: Mica-Graphite-Mica/ Inconel 600
Centering ring: Inconel 600
Inner ring: Inconel 600
Max. temperature: 900ºC.
Max. pressure >160 bar
SuitabilityFor flanges to: ASME B16.5,
DIN standards,
BS 10,
JIS standards
and custom designs

KLINGER Maxiflex Pro

A high-integrity, dual-seal gasket specially designed for service in high-criticality, corrosive applications where sealing performance is of paramount importance.

  • The KLINGER Maxiflex Pro gasket is designed for use in highly aggressive chemical applications such as hydrofluoric acid.
  • The inner ring of a standard Maxiflex can allow media to accumulate between the flange and inner ring which could promote corrosion.
  • Maxiflex Pro prevents this, the conformable facing material enables the gasket seal at the flange bore eliminating media build-up.
  • The incorporation of a Maxiprofile inner ring creates a gasket with two sealing regions.
  • The Maxiprofile also acts as a compression stop needed for high integrity gaskets and also enables a seal to be created inward of the spiral wound sealing element.

KLINGER Maxiflex Pro-X

  • An addition to the Maxiflex Pro range designed for use in seawater applications where the graphite cannot be exposed to the media.
  • The Mica filling on the inner and outer edges of the spiral stops permeation of the seawater to the graphite.
  • Designed for a wide range of applications including hydrocarbons, fuels and seawater.
  • Fire-safe to API-6FB.

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