FLANGE ISOLATION GASKET KITS
Flange Isolation Gasket Kits are designed to maintain the
integrity and reliability of the pipeline and piping system
through safety and corrosion protection.  Flange Isolation
Gasket Kits provide an effective seal and electrical isolation of
flanges.  By eliminating metal to metal to metal contact, static
current is halted to prevent corrosion and aid in the Cathodic
Protection of the pipe.

Constructed of high quality materials that have a high
dielectric constant and low water absorption, out Flange
Isolation Gasket Kits are available for all size flanges, ranging
from 1/2" to 144" in all ANSI & API classes
HOW TO ORDER
Literature request
and feedback form
TYPE D
Type D gaskets are designed to fit into the ring groove of RTJ (ring type joints)     
flanges.  We also offer BX gaskets.  Both are available in grade CE phenolic.
TYPE E
This style kit contains a full-face gasket that has the same outside diameter as the
flanges.  This style gasket will prevent foreign material from collecting and creating
a bridge, thus shorting the cathodic isolation.  Type E gaskets are available in
phenolic, neoprene-faced phenolic, and high temperature materials.
TYPE F
TYPE O
This Gasket has a sealing element on each side and is available in both Type E
and Type F styles.  The sealing element materials are Nitrile, Viton, or Teflon.  
Gasket materials are phenolic and G-10
GASKETS
MATERIAL
DIELECTRIC
STRENGTH
WATER
ABSORPTION
COMPRESSIVE
STRENGTH
MAXIMUM TEMPERATURE
PLAIN FACED PHENOLIC
500 VPM
1.5%
25,000 PSI
225
107
NEOPRENE FACED PHENOLIC
500 VPM
1.5%
25.000 PSI
175
79
G-10
500 VPM
.10%
50,000 PSI
285
141
SPECIAL & HIGH TEMPERATURE:  AVAILABLE UPON REQUEST
SLEEVES
MATERIAL
DIELECTRIC
STRENGTH
WATER
ABSORPTION
MAXIMUM TEMPERATURE
MYLAR
4000 VPM
.8%
300
149
INTEGRAL MINLON
1200 VPM
.22%
200
93
POLYETHYLENE
400 VPM
.01%
105
41
PHENOLIC
400 VPM
2%
225
107
G-10
550 VPM
.10%
285
141
NOMEX
400 VPM
N/A
450
232
WASHERS
MATERIAL
DIELECTRIC
STRENGTH
WATER
ABSORPTION
COMPRESSIVE
STRENGTH
MAXIMUM TEMPERATURE
PHENOLIC
400 VPM
1.1%
25,000 PSI
225
107
G-10
550 VPM
.10%
50,000 PSI
285
141
SPECIAL & HIGH TEMPERATURE:  AVAILABLE UPON REQUEST
PACKAGING
Each Isolation Gasket Kit from Drake Specialties is
individually packaged in a durable box.  The isolation
sleeves and washers are packaged separately in the box
to protect them during shipping.  Each box is labeled with
flange size, pressure rating, type of isolating sleeves,
and whether it is a single or double washer set.
This gasket will fit only the raised face surface of the flanges.  The outside
diameter of the gasket is slightly less than the inside diameter of the bolt circle.  
This gasket can be used on both raised face and full face flanges.  It is
recommended that the flanges be wrapped with Flange Band Protectors, or similar
device, to prevent foreign material from collecting and creating a bridge, thus
shorting out the isolation.  Type F gaskets are available in phenolic,
neoprene-faced phenolic, and high temperature materials.
PO Box 91327
Lafayette, LA  70509
Phone: 337-886-3161
Fax: 337-886-3167
sales@drakespec.com
Download Flange Isolation Gasket Kit Brochure 277KB pdf
PROTECTING
PERSONNEL,
EQUIPMENT,
AND THE
ENVIRONMENT