THERMa-PUR™ Family
FC, CMG, KAMM, Spiral Wound

Leaders in Sealing IntegrityTHERMa-PUR® Family

THERMa-PUR® Style 4122
FC, CMG, KAMM, Spiral Wound
THERMa-PUR® is designed for use in high temperature sealing applications. It is produced
using an environmentally friendly solvent-free process and combines a unique formulation with
Garlock’s traditional quality.
THERMa-PUR® is yet another innovative Garlock sealing solution that provides more than justtemperature resistance.
VALUE & BENEFITS
Extreme Temperature»» Able to withstand high temperature, whether continuous orin thermal cycling conditions

Cut Gasket(4122-FC)

Oxidation Resistance»» Contains proprietary materials that provide improved weight loss characteristics overother high temperature solutions. (see graph)
Hydrophobic Properties & Electrically Insulating (except spiral wound)»» Resists water and provides electrical isolation thus reducing the possibility of corrosion
between flanges made of dissimilar metals
Easy Release from Flanges»» Does not stick to flanges making removal of gaskets easy and fast
Chemical Resistance»» Proprietary fomulation is resistant to a broad range of chemicals: Titanium Tetrachloride,molton salts and other heavy oxidizers
Safer Handling (4122-FC)»» Patent-pending fiber core makes gaskets safer to handle when compared to traditional
high temperature gaskets with steel cores
IDEAL FOR»» Marine and Land-based Exhaust Systems»» Biomass Gasification Process»» Oil and Gas Production»» Mineral and Fertilizer Processing

Garlock Flexseal®
(4122-SW)»» Incineration Process»» Co-generation Systems»» Turbochargers Equipment»» Process Drying Equipment

CONFIGURATIONS
Available in:»» Standard Flexseal Spiral Wound Configurations: RW/RWI/SW/SWI»» Standard Flexseal Spiral Wound Configurations with facing material on the winding
faces»» Corrugated metal core»» Serrated metal core»» Cut gasket»» Sheet

Corrugated Metal Gasket(4122-CMG)

SPIRAL WOUND SPECIFICATIONS
Chemical Compatibility

Please consult Applications Engineering

TemperatureContinuous Max. +1,832ºF (+1,000ºC)

Gasket Factor ‘M’

3.0

Gasket Factor ‘Y’

10,000Kammprofile(4122-KAMM)

Leaders in Sealing IntegrityTHERMa-PUR® Family
TYPICAL PHYSICAL PROPERTIES (FC, CMG, KAMM)
TemperatureContinuous max.

Pressure1 psig (bar)P x T, max.2
psig x °F (bar x °C)+1832°F (1000°C)

4122-FC
4122-CMG
4122-KAMM

500 (34.5)
1000 (68.9)
Equal to flange rating

4122-FC
4122-CMG
4122-KAMM

150,000 (5,100)
600,000 (21,500)
Equal to flange rating

OUT PERFORMS
THERMa-PUR® out performed vermiculite based gaskets in†laboratory testing . THERMa-PUR® showed significantly lessleakage even in extreme thermal cycling condition.
†For test details, please contact Garlock Engineering

Leakage Test with Thermal Cycling (Cut Gasket)
800Typical Physical Properties for 4122-FC*:

700

ASTM Test Method F36
Compressibility, range, %Recovery %ASTM F38
Creep Relaxation, %ASTM F152
Tensile, w/insert, psi (N/mm2)
ASTM F1315
Density, lbs./ft3 (grams/cm3)

Temperature: Thermal cycling between
ambient and 1000F.
Application: 2” 300# Raised Face Flanges

LEAK
KAGE RATE (ml/hr)

35-45
1825
1,200 (8.3)
85 (1.36)

ASTM D149
Dielectric Properties, volts/mil.

100

600
500400Media: Nitrogen
Internal pressure: 30psig
Torque: 60ft‐lbs
Installation gasket load: 8000psi
Thickness: 1/16”

3002001000NOTES:
1. Based on ANSI RF flanges at our preferred torque. When approaching maximum pressure, continuous operating
temperature, minimum temperature or 50% of maximum PxT, consult Garlock Engineering.
2. PxT = psig x ºF (bar x ºC)* This is a general guide and should not be the sole means of selecting or rejecting this material. ASTM test results inaccordance with ASTM F-104; properties based on 1/16" (1.6mm) gasket thickness unless otherwise mentioned.

Ambient

1st ThermalCycle @ 1000°F

Ambient(cool down)2nd ThermalCycle @ 1000°F

Ambient(cool down)

4122‐FC

253615245152

Vermiculite Gasket

24985717

84790

LOW WEIGHT LOSSTHERMa-PUR® proprietary formulation resists oxidationand has improved weight loss property by almost 2X whencompared to other high temp organic based gaskets such asgraphite and vermiculite.

Leakage Test with Thermal Cycling (Metallic Gasket)
50

Weight Loss Testing (TGA¹)

Temperature: Thermal cycling
between ambient and 1000F.

100Application: 2” 300# Raised
Face Flanges

THERMa-PUR™
maintained 95% ofit's original weight

Residdual Mass (%)

9896

LEAKAGGE RATE (ml/hr)

40

Vermiculite Gasket
lost 10% of its
original weight

9492

THERMa-PUR™
Vermiculite Gasket

90

Media: Nitrogen
Internal pressure: 30psig

30

Torque: 60ft‐lbs
Installation gasket load:
8000psi

20

KAMM ‐Kammprofile
CMG ‐ Corrugated Metal Gasket
SWG‐ Spiral Wound Gasket

100Ambient

1st Thermal
Cylce @ 1000°F

Ambient(cool down)

2nd Thermal
Cycle @ 1000°F

4122‐KAMM

1.4

2.8

4.8

5.7Ambient(cool down)
5.2

4122‐CMG

0.10

0.80

0.53

0.100.53Vermiculite SWG

1.0

49.5

3.4

53.3

3.8

¹TGA—thermal gravimetric analysis in oxygen atmosphere@ 80°F to 1650°F with 30min hold at max temperature
8802004006008001000

12001400

1600

Temperature ( F)

Leaders in Sealing IntegrityTHERMA-PUR® SPIRAL WOUND TESTING
Functional performance of the THERMa-PUR®
spiral wound demonstrates its superior
high temperature sealing capability.

3”, 300#Flange
25,000 psi

Thermogravimetric Analysis ‐ High Temperature Fillers

Laboratory testing demonstrates the long term, hightemperature stability of the THERMa-PUR® material
compared to existing materials.

1000

1009008008060060500
Graphite ‐ Phosphorous Oxidation Inhibitor

40400

THERMA‐Pur

Temperature [C]

Mass Loss [%]700300Temperature

2002010000020406080100

Time [min]Effective sealing is achieved at gasket stresses
at or below comparable products.

GSK 3:83 - 10.2017

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