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Isolation Unions

Isolation Unions

GROUND JOINT INSULATING UNIONS

3,000 LB.
WORKING PRESSURE

STOPS GALVANIC AND ELECTROLYTIC CORROSION OF MAINS AND SERVICES. PERMANENT, ECONOMICAL PROTECTION.
PROTECTS AGAINST STRAY OR INDUCED CURRENTS.

1 - Ground Joint - extra wide seating surface.
2 - Brass Ring - serves as bearing surface
for the nut. Eliminates possibility of damage
to nylon insulation when making-up.
3 - Precise Mating Tapers - provides high
compression, gas-tight seal. Will not loosen
under strain or vibration.
4 - Forged Steel Nut and Body - made from hot
forged AISI 1023 open hearth, silicon killed
forged steel.
5 - Extra Heavy Shoulder - on swivel end and in
the nut. Increases strength to withstand
pipe strains, vibration, misaligned connections,
and wrench abuse.
6 - Integral One-Piece Construction - insulation
is bonded and molded to metal body. No loose
parts to assemble, lose, or misalign during
field installation.
7 - Precision Threading - expert machining for
exact dimensions.
8 - Molded Nylon - nonbrittle 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 2500 F.
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.

Complies with ASTM A-105
FEMALE x FEMALE IRON PIPE SIZES AVAILABLE:
V4", 3/8 ", V2", 3/4",1", 1V4", 1V2", 2".

 

'0' RING INSULATING UNIONS

FLAT FACED TYPE 3,000 LB. WORKING PRESSURE
MILLIONS IN SERVICE
ECONOMICAL .
PERMANENT .
REUSABLE!

1 - Confined '0' Ring Seal - allows union to be
reused. Little torque required to make gas-tight
seal, yet permits extremely high compression.
2 - Brass Ring - serves as a bearing surface for
the nut, eliminating undue wear or binding on nylon
insulation when making-up.
3 - Leak-Proof Static Seal - the confined gasket
makes the. seal completely leak-proof. Will not
loosen under strain or vibration. ~
4 - Forged Steel Nut and Body - made of hot
forged AISI1023 open hearth, "silicon
killed" steel.
5 - Extra Heavy Shoulder - on swivel end and the
nut. Increases strength to withstand pipe
strains, vibrations, misaligned connections,
and wrench abuse.
6 - Integral One-Piece Construction - nylon
insulation is bonded and molded onto metal body.
No loose parts to assemble, lose or misalign
during field installation.
7 - Precision Threading - expert machining for
exact dimensions.

 

The integral, one-piece, construction of Central's '0' ring union features nylon which is molded and bonded on, completely enclosing the flange and flat face. This design uses a return of nylon on the internal surface, which gives additional protection against shorts caused by bridging of . foreign materials.

The molded nylon is a nonbrittle type which will withstand great impact and shock loads without fracturing. Chemically, this special nylon is unaffected by petroleum oils, greases, gas, brine, water, air, ammonia and crude, even at temperatures as high as 2500 F. Also the dielectric strength goes far beyond the toughest requirements.

SIZES AVAILABLE: 1/2" , 3/4" , 1" ,  1 1/4" , 1 1/2" , 2" 2 2/2" , 3"

 

GROUND JOINT INSULATING UNIONS

150-CLASS ANSI., 816.39
300 Ib CO~D WORKING PRESSURE

1 - Ground Joint - extra wide seating surface.
2 - Precise Mating Tapers - provides high compression, gas-tight seal. Will not loosen under strain or vibration.
3 - Nut and Body - made of high test, air refined malleable iron.
4. - Extra Heavy Shoulder - on swivel end and in the nut. Increases strength to withstand pipe strains, vibration, misaligned connections, and wrench abuse.
5 - Integral One-Piece Construction - insulation is bonded and molded to metal body. No loose parts to assemble, lose, or misalign during field installation.
6 - Precision Threading - expert machining for exact dimensions. Meets ANSI 82.1.
7 - Molded Nylon - nonbrittle 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 2500 F.
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.

FEMALE x FEMALE IRON PIPE SIZES AVAILABLE:

 

'0' RING INSULATING UNIONS FLAT FACED TYPE 150 CLASS 300 CWP

1 Little torque required to make gas-tight seal, yet permits extremely high compression.
2 - Brass Ring - serves as a bearing surface for the nut, eliminating undue wear or binding on nylon insulation when making-up.
3 - Leak-Proof Static Seal - the confined gasket makes the seal completely leak-proof. Will not loosen under strain or vibration.
4 - Nut and Body - made from high-test, air-refined malleable iron.
5 - Extra Heavy Shoulder - on swivel end and the nut. Increases strength to withstand pipe strains, vibrations, misaligned connections, and wrench abuse.
6 - Integral One-Piece Construction - nylon insulation is bonded and molded onto metal body. No loose parts to assemble, lose or misalign during field installation.
7 - Precision Threading - expert machining for exact dimensions.

FEMALE x FEMALE IRON PIPE SIZES AVAILABLE:
1/2", 3/4",1", 1 1/4", 1 1/2", 2".
 

 

 

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