Flange Insulation Gasket Kit Type F
The Type F Flange Insulation Gasket Kit is designed to provide insulation and sealing for raised-face flanges
A type F insulation gasket is a feature in raised face flanges for insulating and sealing the equipment. The type f insulation gasket inside bolt hole diameter is smaller than the external diameter of the gasket assuring automatic positioning. These gaskets have special band protectors to avoid the accumulation of foreign materials. They are manufactured from a 1/8 thick phenolic fabric-based sheet that is used without or with nitrile rubber coating on both faces. The F Type Gaskets create a strong sealing joint by filling any spaces between equipment in the system. These gaskets are insulated cathodically which helps prevent undue corrosion and metallic breakdown. The F gaskets are available as non-asbestos fibers that have a higher isolation capacity.
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 falls within the inside diameter of the bolt hole circle.
Insulation Gasket Kit Type F details
The Type F insulation kit consists of:
- Central Gasket: A flat or oval-shaped insulating gasket positioned between flanges to block electrical conductivity
- Insulating Sleeves: Perforated sleeves inserted into bolt holes to isolate bolts from the flange, preventing electrical contact.
- Insulating Washers: 2 washers per bolt, placed on either side of the flange to further isolate the bolt assembly.
- Non-Metallic Materials: Components are typically made from chemically stable polymers (e.g., polyethylene) with low water absorption and high dielectric strengt
Insulation Gasket Kit Material selection
Gasket Materials: Neoprene-faced phenolic, G-10 (fiberglass epoxy), G-11, PTFE, or other non-conductive materials.
Sleeve Materials: Mylar, phenolic, or polyethylene.
Washer Materials: Neoprene-faced phenolic, G-10, or other insulating materials
You can find the property of the gasket material,sleeve and washer material below,
Flange insulation kits Availability
- ANSI/ASME B16.5 Class 150, 300, 600, 900, 1500, 2500
- API 6A 2000 to 15000 PSI
- DIN, JIS, and other international standards available upon request.
A Type F Flange Insulation Gasket Kit provides full-face insulation, ensuring complete electrical isolation across a bolted flange connection
600-SP-12.000, KIT, FLANGE INSULATION: 12IN, CL600, RTJ, INCLUSIVE OF BOLTS/NUTS, GASKET, SLEEVE, WASHER
Typical description of a Type F Insulation Gasket Kits
Product Name: Type F Insulation Gasket Kits
Style: Type F
Size: 3 Inch
Pressure: Class 300 LB
Standard: ASME B16.5 Flange
Gasket Material: Garlock Gylon 3500
Material for Sleeves and Washers: G11
Feature: Zinc Plated Washers
