Steam Requirements

Piping Recommendations

●Trap each steam coil individually. Always keep the trap clean and in good working condition.

●When tumbler is on the end of a line of equipment, extend header at least 4 feet

(1.2 meters) beyond tumbler. Install shut-off valve, union, check valve and bypass trap at end of line. If gravity return to boiler, omit trap.

●Insulate steam supply and return line for safety of operator and safety while servicing tumbler.

●Keep tumbler in good working condition. Repair or replace any worn or defective parts.

NOTE: Steam heated tumbler models are not certified by the American Gas Association or the Canadian Gas Association.

High pressure machines require a (constant) 80-100 psig (pounds per square inch gauge) (5.62-7.03 kg/cm2) steam service for optimum operation.

WARNING

All system components must have a 125 psig (10 bar) working pressure. Shut-off gate valves must be installed upstream of the steam solenoid valve and downstream of each steam trap so components can be isolated for maintenance or emergency purposes.

All components (solenoid valve, traps) must be supported to minimize loads on the tumbler steam coil connections.

W438

Installing Steam Trap and Making Condensate Return Connections

The steam trap must be installed and the coil outlet connections must be connected to the condensate return lines. The following steps outline the procedure for installing the steam trap and connecting the condensate return lines. Refer to Figure 16 and Figure 17 for typical installations.

1.Connect a flexible hose to each steam coil outlet.

2.Install a strainer to the ends of each flexible hose.

3.Install a steam trap to each strainer.

IMPORTANT: Steam trap must be installed a minimum of 10 inches (254 mm) below the steam coil outlet connections.

4.Install a globe shut-off valve to each steam trap.

5.Connect to the condensate return lines.

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