The piping on both
sides of the second stage regulators can be schedule 40. All pipe fittings
must be 125 PSI
min.
Install the regulators with vents pointing
down; be sure that the regulator manifold is adequately supported. Reference the above
example for critical sizing information of Fitting 5 (see diagram).
1 Shut-Off Valve
2 Regulator
3 Union
4 Reducing Bushing
5 Tee
