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Dielectric Fittings & Gaskets

Stainless steel dielectric tube fittings for electrical isolation, and precision thread sealing gaskets for parallel and internal threads.

SS316
5000 PSI
Polyamideimide Insulator
ISO Parallel
Metric Thread
Copper Gaskets
10 CONFIGURATIONS
FILTER


Part NumberTypeTube ODNPT ThreadUnit
PMC-06-4N-SS-DIE
Male Connector
3/8(in)1/4"
Imperial
PMC-08-4N-SS-DIE
Male Connector
1/2(in)1/4"
Imperial
PMC-M12-4N-SS-DIE
Male Connector
12(mm)1/4"
Metric
PU-04-SS-DIE
Union
1/4(in)—
Imperial
PU-06-SS-DIE
Union
3/8(in)—
Imperial
PU-08-SS-DIE
Union
1/2(in)—
Imperial
PU-M06-SS-DIE
Union
6(mm)—
Metric
PU-M08-SS-DIE
Union
8(mm)—
Metric
PU-M10-SS-DIE
Union
10(mm)—
Metric
PU-M12-SS-DIE
Union
12(mm)—
Metric

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1–10 of 10

About Dielectric Tube Fittings and Thread Sealing Gaskets

Where two parts of a tubing system sit at different electrical potentials, current can flow through the metal and cause galvanic corrosion or interfere with cathodic protection. A dielectric fitting breaks that path. These SS316 unions and male connectors include a polyamideimide insulator between the two halves, so fluid passes through while the electrical path is interrupted. The fittings carry a stated pressure rating of 34.47 MPa (5000 PSI).

Dielectric unions are listed for 1/4", 3/8" and 1/2" tube OD and 6 mm to 12 mm metric tube. Dielectric male connectors combine a tube end with a 1/4" NPT male thread. Typical uses include cathodic protection systems, offshore installations and chemical plant.

The same page lists thread sealing gaskets for parallel and internal threads, which do not seal on the thread flanks. The PRS, PRP and PRG types suit ISO parallel (G), RP and internal ISO threads, plus their metric parallel and internal equivalents. Sizes run from 1/8" to 2" and M8 x 1.0 to M48 x 2.0, with SS316, carbon steel and copper options shown in the specifications.