Flexiteck
UK
Flange Insulation Gaskets Kits
The flange insulation kit manufactured by Star 21 International prevents all kinds of leakages while protecting flanged joints from corrosion using static currents. Our insulation gasket kits are widely used in all industries from refineries to chemical plants all over Singapore, and they have passed ASTM D3850-12 Fire Safe, an analysis that was performed by SGS TGA.
Style : 280
Style 280 flange insulation gasket kit is designed to maintain the integrity and reliability of the pipeline through corrosion protection. They provide an effective seal and an electrical isolation to flanges by eliminating metal to metal contact. A static current is halted to prevent corrosion and aid in the cathodic protection of the pipe.
To meet the requirements of all customers our kits are available for flanges of all sizes ranging from ½” to 144” in all ANSI & API standards.
|
Plain |
Neoprene Faced |
Reinforced |
G-7 |
G-10 |
G-11 |
Dielectric strength Volts/Mill |
500 |
500 |
350 |
350 |
550 |
550 |
Compressive strength psi |
25000 |
25000 |
2300 |
40000 |
50000 |
50000 |
Water absorption % |
1.6 |
1.6 |
0.01 |
0.07 |
0.1 |
0.1 |
Tensile strength psi |
20000 |
20000 |
1450 |
25000 |
45000 |
43000 |
Operating tempo F |
-65 to +220 |
-65 to +175 |
-320 to +500 |
-320 to +450 |
-320 to +280 |
-320 to +349 |
Operating tempo C |
-54 to +104 |
-54 to +79 |
-196 to +260 |
-196 to +232 |
-196 to +138 |
-196 to +176 |
|
Nitrile |
Viton |
Teflon |
Neoprene |
EPDM |
Operating tempo F |
-40 to +260 |
-20 to +350 |
-320(-20) to +450(+350) |
-40 to +250 |
-40 to +250 |
Operating tempo C |
-40 to +121 |
-29 to +177 |
-196(-29) to +232(+177) |
-40 to +121 |
-40 to +121 |
The typical sleeve materials used are Phenolic, Mylar, G7 Silicone Glass, G10 Epoxy Glass, and G11 Epoxy Glass. The sleeves are available in the standard bolts sizes, as well, they can also be customized. They are also available as one-piece integral sleeves and washers which provide superior compression strength. Integral sleeves are available in sizes between 1-½ inches.
|
Mylar |
Nomex |
G7
|
G-10
|
G-11
|
Dielectric strength Volts/Mil |
4000 |
400 |
350 |
550 |
550 |
Water absorption % |
0.8 |
N/A |
0.1 |
0.1 |
0.1 |
Operating temp % |
-79 to +300 |
-65 to +450 |
-320 to +450 |
-200 to +302 |
-50 to +392 |
Operating tempo C |
-59 to +149 |
-54 to +232 |
-196 to +232 |
-128 to +150 |
-45 to +202 |
|
Plain Phenolic |
G7
|
G-10
|
G-11
|
Dielectric strength Volts/Mil |
500 |
350 |
550 |
550 |
Compressive strength psi |
25000 |
40000 |
65000 |
50000 |
Water absorption % |
1.6 |
0.07 |
0.1 |
0.1 |
Tensile strength psi |
20000 |
25000 |
50000 |
43000 |
Operating tempo F |
-65 to +220 |
-320 to +450 |
-200 to +320 |
-50 to +392 |
Operating tempo C |
-54 to +104 |
-196 to +232 |
-128 to +150 |
-45 to +202 |
L-SEAL GASKET
L-seal gaskets are the most effective in static sealing. The elastomer sealing element is encapsulated in the electrically insulated retainer and it permits only micro-exposure of the seal to hostile environments of fire, chemicals and corrosive fluids.
ADVANTAGES OF THE L-seal
Can be utilized with mismatched flanges
Can be utilized with misaligned flanges
Can be used in place of RTJ or BX rings
Little initial torque required
No re-torquing required
Sealing ring cannot be left out
Seal design tested from 0 – 100,000 psi
Reusable
Compensates for pressure fluctuations, compression changes, vibrations, temperature, etc.
Greatly reduces human error during installation
Large selection of materials available
Three to four times the dielectric strength necessary
|
Plain
|
Neoprene Faced
|
Reinforced
|
G-7
|
G-10
|
G-11
|
Dielectric strength Volts/Mill |
500 |
500 |
350 |
350 |
550 |
550 |
Compressive strength psi |
25000 |
25000 |
2300 |
40000 |
50000 |
50000 |
Water absorption % |
1.6 |
1.6 |
0.01 |
0.07 |
0.1 |
0.1 |
Tensile strength psi |
20000 |
20000 |
1450 |
25000 |
45000 |
43000 |
Operating tempo F |
-65 to +220 |
-65 to +175 |
-320 to +500 |
-320 to +450 |
-320 to +280 |
-320 to +349 |
Operating tempo C |
-54 to +104 |
-54 to +79 |
-196 to +260 |
-196 to +232 |
-196 to +138 |
-196 to +176 |
|
Nitrile |
Viton |
Teflon |
Neoprene |
EPDM |
Operating tempo F |
-40 to +260 |
-20 to +350 |
-320(-20) to +450(+350) |
-40 to +250 |
-40 to +250 |
Operating tempo C |
-40 to +121 |
-29 to +177 |
-196(-29) to +232(+177) |
-40 to +121 |
-40 to +121 |
The typical sleeve materials are known to be Phenolic, Mylar, G7 Silicone Glass, G10 Epoxy Glass, and G11 Epoxy Glass and sleeves easily fit over standard sized flange bolts within standard size bolt holes. They are available in standard bolts sizes, as well, custom sizes can be made. They are also available as one-piece integral sleeves and washers which provide superior compression strength. Integral sleeves are available sizes through 1-1/2”.
|
Mylar |
Nomex |
G7
|
G-10
|
G-11
|
Dielectric strength Volts/Mil |
4000 |
400 |
350 |
550 |
550 |
Water absorption % |
0.8 |
N/A |
0.1 |
0.1 |
0.1 |
Operating temp % |
-79 to +300 |
-65 to +450 |
-320 to +450 |
-200 to +302 |
-50 to +392 |
Operating tempo C |
-59 to +149 |
-54 to +232 |
-196 to +232 |
-128 to +150 |
-45 to +202 |
The washer materials come as Phenolic, G7 Silicone Glass, G10 Epoxy Glass, G11 Epoxy Glass with a standard thickness of 1/85”,and insulating washers fit in insulating sleeves in a full range of bolts sizes.
|
Plain Phenolic |
G7
|
G-10
|
G-11
|
Dielectric strength Volts/Mil |
500 |
350 |
550 |
550 |
Compressive strength psi |
25000 |
40000 |
65000 |
50000 |
Water absorption % |
1.6 |
0.07 |
0.1 |
0.1 |
Tensile strength psi |
20000 |
25000 |
50000 |
43000 |
Operating tempo F |
-65 to +220 |
-320 to +450 |
-200 to +320 |
-50 to +392 |
Operating tempo C |
-54 to +104 |
-196 to +232 |
-128 to +150 |
-45 to +202 |
Type “E” is a full-face gasket with the same outside diameter as the flange and precision cut bolt holes.
This design facilitates proper alignment of the gasket during installation. This assembly minimizes the ingress of conductive foreign matter between the portions of the flanges outside the raised face and reduces the risk of bridging.
Type “F” gaskets are made to fit the raised face portion of the flange only. As there are no bolt holes in the “F” gasket, the outside diameter of the gasket fits tightly into place ensuring a well centered position.
The gasket material of mode: T-seal incorporates high-strength, glass-reinforced epoxy laminated bonded to a stainless steel core. This provides the strength of a traditional metallic gasket while maintaining complete electrical insulation between the flange faces. Seal grooves are machined through the laminate insulating material and into the stainless steel core which provides a strong base for the seal to seat into and breaks the potential leak path that is inherent in glass laminate materials. Spring-energized Teflon internal face seals are installed in the dovetail shape seal grooves to provide the reliable sealing.
This provides an extremely reliable sealing and insulating solution for all critical services. Seals and insulates at all pressures are classed including API 15000 psi service.
· Seals and insulates at all pressures classed including API 5000 psi service
· Withstands severe service conditions including large bending moments, vibration, temperature and pressure cycling
· Designed to withstand corrosive environments, including high concentrations of CO2, H2S, produced water, etc.
· Outstanding insulation properties for catholic protection
· Pressure-activated seals provide high confidence sealing and eliminate costly leaks
· Gasket is sized to the bore to protect flange faces from media-induced corrosion and flow-induced erosion
· Prevents turbulent flow at flanged connections
· Mitigates galvanic corrosion in dissimilar metal flanges
· Available to match any flange specification (ANSI, API, MSSP, BS, DIN, AS, others)
· Can mate mismatched RTJ with raised-face flanges>
· Easy installation, make up and removal
The standard stainless steel core is 316. Special materials such as duplex stainless steel, Inconel stainless steel are can be made4 according the requirements.
The standard glass-reinforced epoxy material is NAME G10; G11 is available when the temperature requirement is higher.
|
G10 Bonded |
G11 Bonded |
Dielectric strength Volts/Mill |
550 |
550 |
Compressive strength psi |
65000 |
50000 |
Water absorption % |
0.005 |
0.085 |
Flexural strength psi |
65000 |
60000 |
Tensile strength psi |
50000 |
45000 |
Operating tempos |
-65 to +280 |
-50 to +349 |
Operating tempos |
-54 to +138 |
-45 to +176 |
The standard sealing material is Spring-energized Teflon which suitable for most of working conditions. Meanwhile, the other materials like VITON also available.
|
Nitrile |
Viton |
Teflon |
Operating tempos |
-40 to +250 |
-20 to +350 |
-320 to +450 |
Operating tempos |
-40 to +121 |
-29 to +177 |
-196 to +232 |
The typical sleeve materials are known to be Phenolic, Mylar, G7 Silicone Glass, G10 Epoxy Glass, and G11 Epoxy Glass and sleeves easily fit over standard sized flange bolts within standard size bolt holes. They are available in standard bolts sizes, as well, custom sizes can be made. They are also available as one-piece integral sleeves and washers which provide superior compression strength. Integral sleeves are available sizes through 1-1/2”.
|
Mylar |
Nomex |
G7
|
G-10
|
G-11
|
Dielectric strength Volts/Mil |
4000 |
400 |
350 |
550 |
550 |
Water absorption % |
0.8 |
N/A |
0.1 |
0.1 |
0.1 |
Operating temp % |
-79 to +300 |
-65 to +450 |
-320 to +450 |
-200 to +302 |
-50 to +392 |
Operating tempo C |
-59 to +149 |
-54 to +232 |
-196 to +232 |
-128 to +150 |
-45 to +202 |
The washer materials come as Phenolic, G7 Silicone Glass, G10 Epoxy Glass, G11 Epoxy Glass with a standard thickness of 1/85”,and insulating washers fit in insulating sleeves in a full range of bolts sizes.
|
Plain Phenolic |
G7
|
G-10
|
G-11
|
Dielectric strength Volts/Mil |
500 |
350 |
550 |
550 |
Compressive strength psi |
25000 |
40000 |
65000 |
50000 |
Water absorption % |
1.6 |
0.07 |
0.1 |
0.1 |
Tensile strength psi |
20000 |
25000 |
50000 |
43000 |
Operating tempo F |
-65 to +220 |
-320 to +450 |
-200 to +320 |
-50 to +392 |
Operating tempo C |
-54 to +104 |
-196 to +232 |
-128 to +150 |
-45 to +202 |
Type “E” is a full-face gasket with same outside diameter as the flange and precision cut bolt holes.
This design facilitates proper alignment of the gasket during installation. This way, there is less chance of conductive foreign matter getting between the parts of the flanges that aren't raised.
Type “F” gasket are made to fit the raise face portion of the flange only. As there are no bolt holes in the “F” gasket, the outside diameter of the gasket fit tightly into place assuring a well centered position.