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Insulating Unions
Ground Joint
Insulating Pipe Unions
by Central
Insulating Products for Cathodic
Protection...
Millions in Service.
150-Class ANSI,
B16.39,
300-lb Cold Working Pressure.
 Stops galvanic and electrolytic corrosion of mains and services.
Permanent, economical protection.
Protects against stray or induced
house currents.
Complies with ASTM
A-105
Female x female for iron pipe sizes 1/2", 3/4", 1", 1-1/4 ", 1-1/2", 2"
The finest insulating union ever
designed! |
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- Ground Joint - Extra wide seating surface.
- Precise
Mating Tapers - Provides high compression, gas-tight seal. Will not loosen under
strain or vibration.
- Nut and Body - Made of high test, air
refined malleable iron.
- Extra Heavy Shoulder - On swivel end and in
the nut. Increases strength to withstand pipe strains, vibration, misaligned connections,
and wrench abuse.
- Integral One-Piece Construction -
Insulation is bonded and molded to metal body. No loose parts to assemble, lose, or
misalign during field installation.
- Precision Threading - Expert machining for
exact dimensions. Meets ANSI B2.1.
- Molded Nylon - Non-brittle to withstand
extreme shock loads and impact without fracturing. Chemically unaffected by most
substances including gas, water, ammonia, petroleum oils, and greases at temperatures as
high as 250oF. Central's insulation design uses a return of nylon on the
internal surface, which gives additional protection against shorts caused by bridging of
foreign materials. Dielectric strength goes far beyond the toughest requirements.
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