Product Description
Fives North America 7216 Variable Ratio Regulator, 1/2" NPT, 7216-01-BP
PN: 7216-01 BP
7216 Variable Ratio Regulators are used with nozzle-mix burners to achieve temperature uniformity while using minimum excess air. Molded diaphragms ensure excellent tracking and repeatability, maximum flows, and superior turndown. A high-quality stainless-steel spring is used to bias 7216 Regulator air/gas ratio. As air rate is turned down towards low fire, gas rate drops faster, giving increasing percentages of excess air. Reduced total air means greater fuel economy.
7216-BP By-Pass Option:
The By-Pass Option provides a fixed low fire setting. Make sure any spring adjustments are done after the low fire flow rate has been set by adjust-ing the by-pass needle valve. This is to ensure that the spring force will counteract the weight of the parts as well as the low fire outlet pressure. If this is not done, the regulator will not track properly.
Regulator Designation: 7216-01
Capacities: CFH
Maximum Wide Open with 2 osi drop through regulator
- Gas Gravity 0.4: 348
- Gas Gravity 0.6: 285
- Gas Gravity 1.5: 180
- Gas Gravity 2: 156
Specifications:
- Diaphragm Cover and Case: Aluminum
- Maximum Shock Load: 5 psi
- Maximum Ambient Temperature: 180° F (Standard), 350° F (7216-V)
- Body: Cast Iron
- Seat: Brass
- Shaft: SST
- Low Fire Accuracy at <3"wc impulse: Spring bias setting capabilities: +0.2"wc to –7"wc, Repeatability: ± 0.05"wc
- Balancing Diaphragm: BUNA/Nylon (Standard), FKM/Polyester (7216-V)
- Gas Diaphragm: BUNA/Nylon (Standard), FKM/Nomex (7216-V)
- High Fire Accuracy at 3" to 41.5"wc impulse: Impulse/outlet pressure offset: 0.5 to 5% plus bias on regulator, repeatability: ± 0.3"wc
- Maximum Inlet Pressure: 2 psi
- 1/2" NPT
