Post on 19-Jul-2018
Sealing Global - Servicing Local
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IsoTek™ Isolation Defender™ FS Gasket
Fire Safe
The Defender™ FS sealing/isolating gasket is designed to withstand the rigorous API stan-dard 6FB (Third Edition) test and therefore provides a solution for those who want to electrically isolate their flange while also requiring protection against the potential intro-duction of fire in and around the flange.
The objective of the test is to monitor the total leakage for the duration of the burn/cool-down cycle and during re-pressurization. Leakage was determined by the total water level drop through a visual sight gauge during the burn/cool-down cycles, by manually catching the water in a calibrated container during re-pressurization.
The results concluded that the Defender™ FS Gasket was able to maintain its fire safe characteristics throughout the entirety of the test. During the 30 minute burn and 30 minute cool down period, the measured leakage was 0 ml/min versus the allowable rate of 22.765 ml/min. The leakage rate during the re-pressurization cycle was 5 ml/min versus the allowable rate of 22.765 ml/min.
Based on years of technological experience with Kammpro® core design, the Defender™ FS sealing/isolating gasket not only meets but exceeds the pressure-containing capabilities in standard 6FB (Third Edition) as outlined by API.
General Features · Tested and Certified to API 6FB (Third Edition). · Two integral robust sealing elements for sealing and isolating in an engineered
Fire Safe design. · Serves as a sealing/isolation for Fire Safe Applications. · Incorporates industry proven Kammpro® sealing technology.
ApplicationsDefender™ FS gaskets are engineered for Fire Safe, extreme, high reliability sealing and electrical isolation critical service applications. · High Pressure Flanges: 2500 Class or API 10K · Critical/Extreme service · High pH service · H2S/CO2 service · Locations where end users prefer an integral seal element
and in applications where high volatile fluids are present.
Sizes · 1/2” through 24” diameter
Specialty dimensions and sizing available upon request · Available as “F” Type Gasket
IsoTek™ Defender™ FSIsolation Gaskets
API Standard 6FB Third Edition Fire Test
IsoTek™ Isolation KitsSleeves & Washers
For complete isolation, sleeves and washers are needed with an IsoTek™ sealing and iso-lation gasket. To isolate connecting flanges and protect the gasket and flange from cor-rosion, Lamons provides sleeve and washer sets to complete the isolation system. The sleeves and washers prevent current from reaching the bolts/studs and nuts.Sleeve and washer sets are available in Single and Double washer sets.
Model F = Fire SafeG10 Sleeves, Steel HC Washers
Type FGasket is installed inside bolts
Fire Test Report
In Accordance with
API Standard 6FB, Third Edition
Performed for
Lamons
6 inch Class 300 Defender FS Gasket CS Flange/ B7 Studs/ 2H Nuts
Dielectric Sleeves/ Coated Steel Washers
Start Date: May 2, 2013 End Date: May 2, 2013
Performed by
United Valve 9916 Gulf Freeway Houston, TX77034
Phone: 713-944-9852 Fax: 713-944-5964
www.unitedvalve.com
Isolation Kit Installed in Flanges
For Applications with Different Flange Types, use Lamons DefenderTM FS Gasket
RTJ Flange
Isolation Barriers
Raised Face Flange
Defender™ FS Seal Detail
0.3125” (7.93 mm)
0.156” (3.96 mm)
G11 Retainer Material
Encapsulated with PTFE Coating
Kammpro® Seal Design
Dielectric Mica Sealing Material
Matrix L110 PTFE Sealing
Element
316 SS Metal Core
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Sleeve Material Washer MaterialASTM Test Method G10 Nomex® G10 G11 HC
D149 Dielectric Strength Volts/Mil Short Time 750-800 600 750-800 550 500
D570 Water Absorption (%) 0.5 7.0 65,000 63,000 N/AD790 Flexural Strength (psi) 65,000 18,000 0.05 0.1 N/A
Cut Through Resistance High Low N/A N/A N/A
Operating Temperature Cryogenic to 302⁰F (150⁰C)
-65 to 450⁰F (- 54 to 232⁰C)
Cryogenic to 302⁰F (150⁰C)
-100 to 392⁰F (- 73 to 200⁰C)
-40 to 450⁰F (- 40 to 232⁰C)
Sleeve and Washer Material Physical Property Specifications
API Standard 6FB Test Procedure
Note: The operating temperature for gaskets and flange isolation kits is based off the gasket retainer temperature. Seal element temperature does not dictate the minimum and maximum gas-ket operating temperature. Performance suitability and material compatibility shall be determined by the user. The Defender™ FS is an engineered fire safe gasket that has passed API 6FB fire test (Third Edition). No other claims regarding suitability/compatibil-ity for a particular application or performance in a fire are made.
ASTM Test Method G10S G11S
D149 Dielectric Strength (Volts/Mil Short Time) 750-800 550
D695 Compressive Strength (psi) 65,000 63,000D570 Water Absorption (%) 0.05 0.1D790 Flexural Strength (psi) 65,000 60,000
D256 IZOD Impact Strength (Ft-Lbs/Inch) 14.00 12.00
D638 Tensile Strength (psi) 50,000 42,000D732 Shear Strength (psi) 21,000 21,000D952 * Bond Strength (lb) 2,600 2,200
Operating Temperature Cryogenic to 302⁰F (150⁰C)
-100 to 392⁰F (-73 to 200⁰C)
Sealing/Isolation Gasket Material Physical Property Specifications
Variable Data RecordedAverage System Pressure 550.59 psiAverage Flame Temperature 1722.72°F (939.28⁰C)Time to Reach Flame Temperature of 1400°F (760⁰C) 1 minute, 30 secondsAverage Calorimeter Temperature 1329.4°F (720.7⁰C)Time to Reach Average Calorimeter Temp. of 1200°F (648⁰C) 10 minutes, 30 secondsTotal Burn Time 30 minutesTotal Cool Down Time 30 minutesTotal Repressurization Hold Time 5 minutesAverage System Pressure During Repressurization 556.71 psi