what it does

Engineered for Everyday Reliability

A dependable choice for routine flange protection, supporting system integrity in everyday operating conditions.

Low-pressure
systems
Mild steam and
water use
Non-aggressive
media flows
Utility and
cooling lines
CoRE FEATURES

Built for Basic Protection

Pressure Rated

Handles up to Class 600 (RJ) for mild-pressure use.

Wide Temperature Range

Performs reliably in conditions from –50°C to +110°C.

Flange Compatibility

Designed for both standard (RF/FF) and RJ (Ring Joint) flanges.

Complete Kit

Includes all key components for sealing and isolation installation-ready.

kit Information

Two Solutions for Different Flange Types

Commander Basic Isolation Kit is a proven system for low-cost applications at low pressures and temperatures.

Types

Gaskets

The gasket provides isolation of the two flanges and is a grooved kammprofile stainless steel 316l core which delivers huge strength and rigidity. The kammprofile facings are high dielectric strength modified PTFE or mica. Optional core materials include various grades of stainless steel, duplex steel and nickel alloys.

Isolation Sleeves

Isolate the stud bolts from the flanges. Material selection is determined by the service temperature and choice of carrier and seals.

Isolation Washers

Isolate the nut from the flanges and operate with the isolation sleeve. Key properties are compressive strength to resist stud tightening and dielectric strength. Material selection is determined by temperature.

Basic Gasket

The phenolic carrier isolates the flanges, providing strength and dielectric properties. Thin Nitrile layers glued to the faces provide sealing and limited oil/chemical resistance under bolt compression.

isolation sleeves

Isolate the stud bolts from the flanges. material selection is determined by the service temperature and choice of carrier and seals.

isolation Washers

Isolate the nut from the flanges and operate with the isolation sleeve. key properties are compressive strength to resist stud tightening, dielectric strength and fire resistance.

Backup Washers

Sit between the nut face and the isolating washer. their function is to protect the isolating washers from the torque effect of the nut and to ensure an even transfer of force.

Technical DataSheet
This data sheet provides a detailed comparison of the key mechanical and electrical properties for various non-metallic insulating materials used in industrial components. The data is essential for engineers, designers, and procurement specialists to select the appropriate materials for specific applications, particularly for flange isolation and sealing in piping systems.
Test Method
Measuring
Carrier & washers
Sleeve & Washers
Sleeve only
Washers only
--
--
Phenolic
GRE G 10
GRE G11
MYLAR
Zinc plated steel
ASTM D149
Dielectric Strength
500 Volt/mil
750 volt/mil
550 Volt/mil
4,000 Volt/mil
65,000 PSI
ASTM D695
Compressive Strength
25,000 PSI
65,000 PSI
63,000 PSI
--
50,000 PSI
ASTM D570
Water  Absorption
1.50%
0.05%
0.10%
0.80%
--
ASTM D790
Flexural Strength
22,500 pSI
65,000 PSI
60,000 PSI
13,000 PSI
--
ASTM D256
Izod Impact Strength
1.2 ft/lbs-inch
14 ft/lbs-inch
12 ft/lbs-inch
--
--
ASTM D638
Tensile Strength
20,000 PSI
50,000 PSI
42,000 PSI
--
--
ASTM D732
Shear Strength
10,000 PSI
21,000 PSI
21,000 PSI
--
--
ASTM D952
Bond Strength
1,500 PSI
2,600 PSI
2,200 PSI
--
--
Test Method Measuring Carrier & Washers Sleeve & Washers Sleeve Only Washers Only
-- -- Phenolic GRE G 10 GRE G11 MYLAR Zinc Plated Steel
ASTM D149Dielectric Strength500 Volt/Mil 750 Volt/Mil550 Volt/Mil4,000 Volt/Mil65,000 PSI
ASTM D695Compressive Strength25,000 PSI 65,000 PSI63,000 PSI--50,000 PSI
ASTM D570Water Absorption1.50% 0.05%0.10%0.80%--
ASTM D790Flexural Strength22,500 PSI 65,000 PSI60,000 PSI13,000 PSI--
ASTM D256Izod Impact Strength1.2 Ft/Lbs Inch 14 Ft/Lbs-Inch12 Ft/Lbs-Inch----
ASTM D638Tensile Strength20,000 PSI 50,000 PSI42,000 PSI----
ASTM D732Shear Strength10,000 PSI 21,000 PSI21,000 PSI----
ASTM D952Bond Strength1,500 PSI 2,600 PSI2,200 PSI----
Benefits
01

Combined Sealing

Delivers combined sealing and electrical isolation with just one kit.

02

Easy Installation

Designed for low torque installation, reducing operator effort and flange stress.

03

Flange Recovery

Compensates for minor flange imperfections, offers reliable sealing in worn or out-of-flat systems.

04

Maintenance Ready

Fully reusable: sleeves and washers maintain integrity for future maintenance cycles.

Specifications
Features
Measuring
Notes / Options
Material (Gasket)
CNAF Or Modified PTFE, neoprene Faced Phenolic
Choose based on media compatibility
Flange Type
Raised Face (RF) or Flat Face (FF)
Matches ASME B16.5 flange standards
Pressure Class
ANSI 150 to 600 (depending on material)
Higher classes available on request
Temperature Range
Up to 260 °C (PTFE), 150 °C (CNAF)
Continuous operation limits
ISO Certification
ISO 9001:2015 (Quality Management)
Full material traceability via MetalTrace
Installation Torque
50–75% of standard gasket torque
Reduces bolt stress and over-compression
Feature:
Material (Gasket)
Measuring:
CNAF Or Modified PTFE, neoprene Faced Phenolic
Notes / Options:
Choose based on media compatibility
Feature:
Flange Type
Measuring:
Raised Face (RF) or Flat Face (FF)
Notes / Options:
Matches ASME B16.5 flange standards
Feature:
Pressure Class
Measuring:
ANSI 150 to 600 (depending on material)
Notes / Options:
Higher classes available on request
Feature:
Temperature Range
Measuring:
Up to 260 °C (PTFE), 150 °C (CNAF)
Notes / Options:
Continuous operation limits
Feature:
ISO Certification
Measuring:
ISO 9001:2015 (Quality Management)
Notes / Options:
Full material traceability via MetalTrace
Feature:
Installation Torque
Measuring:
50–75% of standard gasket torque
Notes / Options:
Reduces bolt stress and over-compression
For critical RJ flange applications, consider our SE or Extreme series for better compressive strength and long-term performance.
use cases

Suited for Various Industries

Ideal for sealing and isolation in low-pressure systems, utility lines, and non-aggressive media across general industrial environments.

Oil & Gas

Utilities &
Water

Process
Industries

Steam & Water
Services

kit contents

What’s Included
in the Kit

Everything you need for complete flange isolation — gasket, sleeves, washers, and backup components packed for easy installation.

Isolating & Sealing Gasket

1 per kit

Creates the primary seal between flanges and prevents electrical flow.

Isolating Sleeves

1 per bolt

Insulates the stud bolt from the metal flange to block current.

Isolating Washers

2 per bolt

Prevent electric contact between the nut and flange while resisting compression.

Backup Washers

2 per bolt

Protect isolating washers from bolt torque and evenly distribute force.

For full technical details, download the official datasheet.

Commander Basic  
Isolation Kit Datasheet

Download the PDF for detailed specifications, material properties, and installation instructions — everything you need in one place.

Download PDF