Isomate


General Description

General Description The Isomate™ sealing/isolating gasket is designed for basic applications where electrical flange isolation and corrosion control are required on pipes containing water/wastewater, gas, natural gas, oil and other hydrocarbon based medias up to 175ºF(79ºC). Available for flat face and raised face joint flanges from 1/2" to 24", ANSI 150-300#. The Isomate gasket is an economical solution for basic performance. Isomate sealing/isolating gasket consists of a Phenolic retainer faced on both sides with Nitrile rubber material.



Retainer Materials

  • Phenolic


Gasket/Retainer Material Specifications

ASTM

TEST METHOD

Rubber Faced Phenolic

D149

Dielectric Strength Volts/Mil Short Time

500

D695

Compressive Strength (psi)

25,000

D570

Water Absorption (%)

1.60

D790

Flexural Strength (psi)

22,500

D256

IZOD Impact Strength (Ft-lbs/Inch)

1.20

D638

Tensile Strength (psi)

20,000

D732

Shear Strength (psi)

10,000

D952

Bond Strength (lb)

1,500

 

Temperature - Operating

-65°F (-54°C) to +175°F (+79°C)

NOTE: Operating Temperature for Gaskets and Flange Isolation Kits is based off the Gasket Retainer Temperature. Seal element temperature does not dictate the min. and max. gasket operating temperature.


Seal Element Materials

  • Nitrile


Seal Element Material Specifications

Sealing Element

Temperature - Operating

Nitrile

-40°F (-40°C) to +250°F (+121°C)


Configurations for Gasket Type and Sleeve and Washer Sets


Type "E" Gasket
Fits over the bolt holes and extends to the O.D. of the flange to assist contractors as the bolt holes automatically center the gasket. Provides excellent protection against shorting out of the corrosion mitigation hardware.


Type "F" Gasket
Fits within the bolt hole circle of the flange and extends to the I.D. of the bolt circle providing good protection against shorting out of the corrosion mitigation hardware.

"E" or "F" Type Gaskets
The Isomate gasket is available in a Type "E" or "F" configuration to accommodate all your sealing/isolating needs.


Single Washer Set
One isolation sleeve, one steel washer and one insulating washer for each stud/bolt.

Double Washer Set
One isolation sleeve, two steel washers and two insulating washers for each stud/bolt.


Suggested Sleeve/Washer Set

ED = Economy (Mylar Sleeves, Steel ZP Washers and Phenolic Washers) - Double Washer Set


Other information



Features

  • Sealing and isolating gasket.


Applications

  • Isomate™ gaskets are engineered to provide reliable sealing and electrical isolation for a wide variety of applications.


The industry has improved sealing technology in retainer type gaskets with engineered seal elements and groove designs. Defender™ and IsoGuard™ sealing systems should be reviewed, specified and used when a long-term maintenance-free solution is necessary.


Industries

  • Water/Wastewater
  • Oil
  • Gas


Media


Water

  • Potable Water
  • Sea Water
  • Wastewater


Energy

  • Natural Gas
  • Gasoline
  • Crude Oil
  • Propane
  • Nitrogen


General Installation Tips

  1. Always use proper safety equipment.
  2. Installation should be done with a torque wrench or stud tension measuring device.
  3. Lamons packaged product to inspect and determine that components are as specified.
  4. Flanges shall be free of pits, gouges, rust, debris, oil and grease. Surface finish shall be no greater than 250 RMS.
  5. Check bolts and nuts to ensure they are clean.


Technical Note

FLAT gaskets are a basic technology that has been in the industry for years. Applications should be monitored and maintained on a regular basis.
The industry has improved sealing technology in retainer type gaskets with engineered seal elements and groove designs. IsoGuard™ and FLOWGUARD™ sealing systems should be reviewed, used and specified when a long-term maintenance-free solution is necessary.