150 lb. O-Ring Insulating Union

Stops Galvanic and Electrolytic Corrosion of Mains and Services

Provides Permanent, Economical Protection

Protects against Stray or Induced Currents

300 lb. Cold Working Pressure

150-Class 300 CWP

Features

1. Confined O-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 lossen under strain or vibration.
4. Nut and Body: Made of high test, air refined malleable iron.
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 the metal body. No loose parts to assemble, lose, or misalign during field installation.
7. Precise Threading: Expert machining for exact dimensions. Meets ANSI B2.1.

Installation Ease and Long Life

Integral one-piece O-Ring construction features nylon which is bonded and molded to the metal body, completely enclosing the flange and flat face. The insulation 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 extreme shock loads and impact without fracturing. This special nylon is chemically unaffected by gas, water, brine, ammonia, petroleum oils, H₂S, crude, and greases at temperatures as high as 250° F. Dielectric strength goes far beyond the toughest requirements.

Available Sizes: 150 – 175 lb.
3/4″, 1″, 1 1/4″, 1 1/2″, 2″
1/2″ gasket design only.