G10 with SS316 Isolating Gasket
G10 with SS316 isolating gasket is a significant reliability gasket used for both insulation and typical sealing uses in very critical services.
Description
G10 with SS316 isolating gasket gives excellent insulation and sealing in tough material applications. The VCS isolation gasket is suitable for all services up to and including ANSI 2500# and API 10,000# classes.
Due to its unique pressure-activated sealing system, the gasket requires far less bolt stress to seal than any other gasket. Its inner diameter is exactly matched to the flange bore to eliminate turbulent flow and flange face erosion or corrosion. The seal elements are replaceable in the reusable gasket retainer.
Applications
- Mating mismatched ring-joint to raised-face flanges (VCS will seal in ring-joint, raised-face and flat-face/slip-on flanges)
- Eliminate fluid trap corrosion between ring-joint (RTJ) flanges where high concentrations of CO₂, H₂S, and other aggressive
- Eliminate turbulence and flow-induced erosion between ring-joint (RTJ) flanges.
- Tanks and heat exchangers with sacrificial anodes to increase anode life
- Insulation between dissimilar metals to prevent galvanic corrosion
- Flange insulation in conjunction with cathodic protection
- Wellhead isolation from inter-connected flow lines
- Hydrocarbon media are present
- Valve connections
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Physical Properties of Isolation Gasket Materials
| Gasket Materials | Dielectric Strength | Compressive Strength | Water Absorption | Tensile Strength | Operating Temp (°C) |
|---|---|---|---|---|---|
| Plain Phenolic | 500 vpm | 25 ksi | 1.6% | 20 ksi | -54 - 104 |
| Neoprene Faced Phenolic | 500 vpm | 25 ksi | 1.6% | 20 ksi | -54 - 79 |
| G7 | 350 vpm | 40 ksi | 0.07% | 25 ksi | -196 - 232 |
| G10 | 550 vpm | 55 ksi | 0.1% | 45 ksi | -128 - 130 |
| G11 | 550 vpm | 57 ksi | 0.1% | 43 ksi | -45 - 176 |
| G10+SS316 | 550 vpm | 65 ksi | 0.1% | 50 ksi | -128 - 130 |
| Reinforced PTFE | 350 vpm | 2.3 ksi | 0.01% | 1450 psi | -196 - 260 |
