Garlock GRAPH-LOCK 3125SS

Garlock GRAPH-LOCK 3125SS is a flexible graphite sheet laminated onto a thin 316 stainless steel foil insert, bonded with adhesive.

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Manufacturer Documentation

Our Quebec facility manufactures custom-cut flat gaskets to your exact specifications. VAMECA can also evaluate the supply of this part number or engineer a suitable replacement.

AT A GLANCE

Graphite with foil insert

Product Family

Graphite

Material Composition

Laminated flexible graphite, 316 stainless steel foil insert

TECHNICAL SPECIFICATIONS

Material Specifications

Maximum temperature and pressure limits cannot be applied simultaneously.

TEMPERATURE

Min. -240 °C · Catalog Max. 454 °C · Steam 650 °C

PRESSURE

138 bar (catalogue maximum, verify according to P/T rating)

THICKNESSES

Thickness specifications not available in source documentation

Applications and Key Features

Garlock recommends it for assemblies requiring superior thermal properties and enhanced handling durability for cut graphite.

PART NUMBER ANALYSIS

To properly select or replace this material

What Sets This Material Apart

The stainless steel foil is the defining feature of the SS suffix. The adhesive binder and insert thickness are critical design elements to maintain.

Recommendations for Replacement Analysis

When substituting reinforced graphite, specify the foil, geometry, and service fluid. Take care not to confuse flat stainless steel foil with tanged metal cores.

To compare constructions: Durlon FGL316 and KLINGER Graphite Laminate SLS. The grade of graphite and the bonding method to the foil can significantly impact gasket performance.

What Sets This Material Apart

The stainless steel foil is the defining feature of the SS suffix. The adhesive binder and insert thickness are critical design elements to maintain.

Recommendations for Replacement Analysis

When substituting reinforced graphite, specify the foil, geometry, and service fluid. Take care not to confuse flat stainless steel foil with tanged metal cores.

To compare constructions: Durlon FGL316 and KLINGER Graphite Laminate SLS. The grade of graphite and the bonding method to the foil can significantly impact gasket performance.

REPLACEMENT TO BE EVALUATED

Compare designs and alternatives

KEY COMPARISON CRITERIA

The 3125SS features a bonded stainless steel foil insert, whereas the 3125TC utilizes a mechanically bonded tanged core. The standard 3125 is also available without an insert.

Need this gasket, custom cutting, or a replacement?

Part Number: Garlock GRAPH-LOCK 3125SS

Please provide the part number, thickness, dimensions, quantity, and process fluid. We will review material availability for the specified grade, custom cutting at our Quebec facility, or an engineered alternative tailored to your assembly.

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View official documentation

The manufacturer's latest datasheets, certifications, and P/T curves must be reviewed prior to ordering or substitution.

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RELATED PART NUMBERS

Compare Related Designs

Flat foil-reinforced graphite, engineered with a nickel core for Flexicarb NR and 316 stainless steel for GRAPH-LOCK 3125SS. Related product constructions: Durlon FGL316 (graphite + foil insert), KLINGER Graphite Laminate SLS (exfoliated graphite), and Flexitallic Flexicarb NR (reinforced graphite).

REFERENCE SHEET

Flexitallic