User's Manual

Component Descriptions
September 2013 2-8 P/N 81-CO2MAN-001
Figure 2-7. Installation of Plain Nut Discharge Head to Cylinder Valve
2-2.2.2 GROOVED-NUT DISCHARGE HEAD
The grooved-nut discharge head, Part No. 81-872442-000 (Figure 2-8), can only be actuated
by a control head. Pressure entering the outlet will not actuate the cylinder. Grooved-nut
discharge heads are only used for single-cylinder, or connected single cylinder main and
reserve systems (Figure 2-9).
BALL CHECK
PILOT PRESSURE PATH
IN DISCHARGE HEAD
STEM
OUTER O-RING
PILOT PRESSURE PATH
IN VALVE
PILOT PORT
PILOT CHECK
TYPICAL SIPHON TUBE
PISTON
PLAIN NUT
DISCHARGE HEAD
BALL CHECK
PILOT PRESSURE PATH
FOR SLAVE OPERATION
STOP CHECK
DISCHARGE OUTLET
PILOT PRESSURE HERE
WILL DISCHARGE THIS
CYLINDER
INNER O-RING
NO GROOVES IN
SWIVEL NUT
MAIN CHECK
SAFETY OUTLET
TYPE “I” CYLINDER
VALVE (SEE K-1050)
TYPICAL CYLINDER
NEVER CONNECT DISCHARGE HEAD TO CYLINDER
VALVE WITHOUT FLEX LOOP ATTACHED TO
DISCHARGE OUTLET AND CONNECTED TO SYSTEM
PIPING. ARRANGEMENT AS SHOWN IS FOR
ILLUSTRATION PURPOSES ONLY.
CAUTION