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The C-4 Rigid Coupling is our standard coupling and is designed for rigid piping applications. The C-4 is specially designed to provide a rigid, locked-in pipe connection to meet the specific demands of rigid design steel pipe.
Unit of Measure

Specifications

Industry Standards/Certifications

N/A NSF/ANSI 61

Type

N/A Rigid Coupling

Style

N/A Grooved

Nominal Size

N/A 1 1/2 in

Housing Material

N/A Ductile Iron conforming to ASTM A-536, Grade 65-45-12

Coatings

N/A Hot Dipped Zinc Galvanized

Gasket Material

N/A EPDM

Gasket Type

N/A Flush Gap

Bolt Material

N/A SAE J429, Grade 5, Zinc Electroplated (standard)

Heavy Hex Nut

N/A ASTM A563, Grade A, Zinc Electroplated (standard)

Coupling Bolts Size

N/A 3/8 x 2 1/4 in

Coupling Bolts Qty.

N/A 2

Lubrication

N/A Standard Gruvlok, Gruvlok Xtreme™

Application

N/A Recommended for wet and dry (oil free air) fire protection sprinkler systems. For freezing conditions, Gruvlok Xtreme™ Lubricant is required.

Min. Service Temperature Range

N/A -40 ºF

Max. Service Temperature Range

N/A 230 ºF

Max. Working Pressure

N/A 300 psi

Max. End Load

N/A 851 lb

Range of Pipe End Separation

N/A 0-1/32 in

Product Number

N/A 0890023385

UPC Code

N/A 69029196798

Weight

N/A 1.66 lb