How to install grooved coupling?

Grooved Coupling Installation

Grooved piping systems require a careful coupling selection. To ensure a properly set up system use the following guidelines: 
1)The coupling must suit the pipe O.D., and pressure rating for the application in which it is to be used. 2) Use the correct gasket to suit the media being transported/conveyed. 3) Make sure the correct groove dimension is used to ensure the correct fittings of the coupling to the pipe. 

The following industry standards must be followed to ensure a correct pipe joint assembly. 
a)All bolts should be torqued evenly to achieve metal to metal contact at the bolt pads. b) Tongue and recess housings must be checked for correct alignment. c) Apply Zhihua gasket lubricant to all rubber surfaces to ensure a no pinch assembly. d) Test the system slowly (preferably hydrostatically) and check for leaks. e) Depressurize the system before carefully dismantling the couplings.



Installation Instructions

1.A socket wrench is the only tool needed to assemble the gasket, housing, nuts and bolts.
2.Before installing the gasket, make sure that the pipe ends are correctly grooved. Remove any burrs, scores, rust or other imperfections from the pipe ends and gasket.
3.Smear ordinary rubber grease on the inside and outside of the gasket. Stretch the gasket over one pipe end and bring the other pipe to be coupled into alignment. Slide the gasket into the center between the grooves on the two pipe ends.
4.Attach the two sections of the housings and insert the bolts and nuts
5.Tighten the bolts evenly until the housings are firmly together with the metal touching.