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Zhejiang Dielectric Flange Isolation Kit
QS Gasket: Zhejiang Dielectric Flange Isolation Kit
Product: Zhejiang Dielectric Flange Isolation Kit
Sealing: Nitrile
Carrier Disc: Phenol
Diameter : DN 150mm
Class: 300LB
Sleeve: G10
Washer: G10 and ZPS
Version: F
Sealing: Nitrile
Carrier Disc: Phenol
Diameter : DN 150mm
Class: 300LB
Sleeve: G10
Washer: G10 and ZPS
Version: F
Quantity
As a senior applications engineer specializing in sealing technology, I recommend this Dielectric Flange Isolation Kit as a critical component for preventing electrolytic corrosion in metallic piping systems. This kit is not merely a gasket; it is a complete isolation system designed to interrupt the electrical continuity across a flanged joint while maintaining a leak-tight seal under demanding conditions.
Technical Specifications & Material Verification
Our Dielectric Flange Isolation Kit is meticulously engineered with the following validated components:
- Sealing Element: Nitrile (NBR) – Provides exceptional resistance to oils, hydraulic fluids, and hydrocarbons within a temperature range of -30°C to +100°C.
- Carrier Disc: Phenol (Phenolic) – Offers a robust mechanical backbone. The phenolic carrier disc delivers high compressive strength and low moisture absorption, ensuring dimensional stability even in humid environments.
- Sleeve & Washers: G10 (High-pressure fiberglass laminate) and ZPS (Zinc-plated steel) washers. G10 provides superior dielectric properties and arc resistance, while ZPS washers distribute the bolt load evenly to prevent damage to the G10 sleeves.
- Dimensions: DN 150mm (Nominal Diameter) with a Class 300LB pressure rating, suitable for high-pressure applications up to 5.0 MPa depending on the flange rating.
Our Dielectric Flange Isolation Kit is meticulously engineered with the following validated components:
- Sealing Element: Nitrile (NBR) – Provides exceptional resistance to oils, hydraulic fluids, and hydrocarbons within a temperature range of -30°C to +100°C.
- Carrier Disc: Phenol (Phenolic) – Offers a robust mechanical backbone. The phenolic carrier disc delivers high compressive strength and low moisture absorption, ensuring dimensional stability even in humid environments.
- Sleeve & Washers: G10 (High-pressure fiberglass laminate) and ZPS (Zinc-plated steel) washers. G10 provides superior dielectric properties and arc resistance, while ZPS washers distribute the bolt load evenly to prevent damage to the G10 sleeves.
- Dimensions: DN 150mm (Nominal Diameter) with a Class 300LB pressure rating, suitable for high-pressure applications up to 5.0 MPa depending on the flange rating.
Important Correction: While traditional phenolic sheets are used, our design utilizes a laminated Phenolic carrier disc for enhanced interlaminar shear strength, coupled with G10 sleeving to ensure that the bolts do not create a"short circuit"across the flange.
Key Applications & Industrial Use Cases
This kit is the industry standard for pipeline isolation in the following sectors:
1. Oil & Gas: Separating dissimilar metals (e.g., carbon steel to stainless steel) at pump stations and compressor terminals to mitigate galvanic corrosion.
2. Water/Wastewater: Protecting cathodically protected pipelines in underground or submerged installations.
3. Chemical Processing: Providing isolation in systems handling refined products, acids, and caustics where stray electrical currents pose explosion risks.
4. Power Generation: Isolating cooling water lines to prevent turbine and condenser damage.
This kit is the industry standard for pipeline isolation in the following sectors:
1. Oil & Gas: Separating dissimilar metals (e.g., carbon steel to stainless steel) at pump stations and compressor terminals to mitigate galvanic corrosion.
2. Water/Wastewater: Protecting cathodically protected pipelines in underground or submerged installations.
3. Chemical Processing: Providing isolation in systems handling refined products, acids, and caustics where stray electrical currents pose explosion risks.
4. Power Generation: Isolating cooling water lines to prevent turbine and condenser damage.
Why Choose This Isolation Kit?
The combination of Nitrile sealing and Phenolic reinforcement ensures that the joint remains pressure-tight while the G10 components provide over 100 megohms of resistance at 500V DC. The"Version F"configuration ensures compliance with standard flange drilling templates, allowing for a retrofittable, drop-in replacement without flange modification.
The combination of Nitrile sealing and Phenolic reinforcement ensures that the joint remains pressure-tight while the G10 components provide over 100 megohms of resistance at 500V DC. The"Version F"configuration ensures compliance with standard flange drilling templates, allowing for a retrofittable, drop-in replacement without flange modification.
By installing this Dielectric Flange Isolation Kit, you extend asset life, reduce unplanned maintenance, and ensure the safety of your cathodic protection system. For DN150 Class 300 connections, this kit represents the highest standard in galvanic isolation. Always verify torque specifications upon installation to ensure optimal compression of the nitrile seal.
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