ISOMAX LPS Flange Insulation Sets

General Properties

• Gives a high sealing reliability in low pressure system.
• Excellent electrical insulation when used on cathodic protection systems.
• Is suitable for most hydrocarbons services subject to seal ring material selection.
• Reduces galvanic corrosion in dissimilar metal flanges.
• Design eliminates media-induced corrosion and flow-induced erosion from flange faces.
• Design requires reduced flange/bolt assembly stress.
• Easy installation and removal.
• Suitable for all ANSI rated flanges up to class 600 lb.

Materials

Gasket Insulating Material & Washers: G-10 Glass Reinforced Epoxy (GRE) as standard (G-11 high-temperature grade also available).

Spring energized PTFE or O-Ring pressure activated seal: PTFE (spring energized) as standard (Viton and Neoprene also available).

Insulation sleeves: GRE (standard) or Nomex for high temperature service.

Ring Face	Full Face

LPS Flange Gasket Advantages & Benefits

• Low pressure sealing (ANSI class 150, 300 and 600) service.
• Seals are pressure activated.
• High strength laminate material reduces failure due to excess compression.
• Excellent electrical insulation when used on cathodic protection systems.
• Design eliminates media-induced corrosion and flow-induced erosion from flange faces
• Reduces galvanic corrosion in dissimilar metal flanges.
• Also available with a variety of elastomeric seals.
• Easy installation, assembly and removal as design requires reduced flange/bolt assembly stress.
• Flanges do not have to be spread as would be the case with RTJ gaskets. The LPS easily slips in place.
• Gasket is self-aligning and centering, quick to install, no special tools are required.
• Maintenance-free, corrosion resistant design.

Insulation Kit Contents:

Insulating facing: G-10 glass reinforced epoxy resin

Seal: Spring energised PTFE ( Viton or Neoprene rubber also available)

Thickness: 3.2mm.

Insulating Washers: G-10 glass reinforced epoxy resin (other materials are available)
3.2mm thickness 2 washers per bolt

Steel Washers: Zinc-plated steel, 3.2mm thickness (stainless steel washers also available) 2 washers per bolt

Insulating Sleeves: G-10 glass reinforced epoxy resin. (Mylar and Nomex also available) 1 insulating sleeve per bolt

Core Materials:

Material type:	G-10 Glass-reinforced epoxy resin	G11 High temperature resin
Compressive strength:	50,000psi-minimum	50,000psi-minimum
Dielectric strength:	24.1-31.5kV/mm	24.0kV/mm
Maximum Temp:	150°C	200°C
Water absorption:	0.1%-maximum	0.1%-maximum
Flexural strength:	65,000psi	57,700psi
Tensile strength:	50,000psi	41,000psi
Temperature range:	-130°C to 150°C (limited by gasket material)	-46°C to 200°C (limited by gasket material)
Seal:	Spring-energised PTFE(Viton or Nitrile rubber also available)