Control Rods and Cables

Expansion Joints installed in piping systems that are anchored on both sides of connectors need no control rods, providing piping movements are within the tabulated allowables. Expansion joints installed in unanchored piping or connected to isolated equipment must have control rods; those control rods must be properly set so that allowable movements are not exceeded.

The number of control rods is determined by the maximum working pressure of the pipeline, not the maximum pressure rating of the joint. Use the convenient chart to the right to specify. Control rods are designed for a 3:1 safety factor as is; please use accordingly. For example, if a 24” 452 joint is installed in a pipeline with a maximum pressure of 120 psig, 3 control rods are required. If the maximum pressure of the pipeline is 220 psig, 5 control rods are required.

Series
1000
Tube Cover Max
Oper.
Temp.
B Butyl Butyl 225°F*
E EPDM EPDM 225°F*
H Hypalon Hypalon 225°F
HN Hypalon Neoprene 225°F
N Neoprene Neoprene 225°F
NH Neoprene Hypalon 225°F
Ni Nitrile Nitrile 210°F
NiN Nitrile Neoprene 210°F
NR Neoprene Natural 225°F
R Natural Natural 180°F
RN Natural Neoprene 180°F
V Viton® Viton® 250°F*

Submittal & Files

PRODUCT SUBMITTAL – (Contact us for more info)
2D CAD DETAILS – (Contact us for more info)
3D CAD DETAILS – (Contact us for more info)
MODEL STP FORMAT – (Contact us for more info)
REVIT 2012 RFA FORMAT – (Contact us for more info)

BULLETINS, DATA SHEETS & INFORMATION

MASON-MERCER SPECIFICATIONS
SAFEFLEX SFDEH-HE FORM

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