Installation | Ratio Regulator
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When installing North American 7216 equipment please follow the diagram to the right.
INSTALLATION REQUIREMENTS
Install with diaphragm horizontal and above the pipe.
5 D min.
Air Control Valve
3 D min.
Butterfly Valve (lock open)
impulse line (cross- connection)
Nozzle-Mix Burner
tee for gauge
Limiting Orifice Valve 10 D min.
gas
4 D min.
Temporary test valve and gauge for ratio regulator integrity test
Metering Orifi ce
Variable Ratio Regulator
REPAIR AND UPGRADE KITS
For repair and upgrade kits see Sheet 7216/7218/7219A/7349A.
ORDERING INSTRUCTIONS
7216 - -
"Blank" Standard V = (FKM) diaphragms and O-rings BP = by-pass VBP = bypass option with (FKM) diaphragms - not available for pipe sizes 5-7 RK = repair kit VRK = repair kit (V series) UK = Upgrade kit for -5, -6, -7 VUK = (FKM) upgrade kit for -5, -6, -7 K = no brass internals (obsolete)
Product No.
Pipe Code
The "Standard" regulator now comes with no brass internals, and can be used in place of the obsolete -K model
Bulletin 7216 page 4
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