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Products>>Section A- RegO / ECII>>Regulators and accessories>>Page A-1
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Regulators and Accessories - General Information:
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- LP-Gas Regulators - Safety Warnings and General Info (PDF) 514 Kb. - Selecting the Proper RegO Regulator (PDF) 332 Kb. - Two Stage LP-Gas Systems, Advantages (PDF) 464 Kb. - Pipe and Tubing Selection Guide (PDF) 415 Kb. - RegO Regulator Design Features (PDF) 589 Kb. |
Compact High Pressure First Stage Regulator
Replaces LV3303TR. Ideal for use as a first stage regulator on any domestic size ASME or DOT container in propane gas installations requiring up to 1,500,000 BTUs/hour. These regulators are factory set to reduce tank pressure to an intermediate pressure of approximately 10 PSIG. The use of a positive, direct-acting lever style improves performance in situations where ambient temperature is at freezing and fuel has high moisture content.
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Part Number |
Inlet Connection |
Outlet Connection |
Orifice Size |
Factory Delivery Pressure |
Bonnet Vent Position |
Vapor Capacity BTU/hr. Propane* | |
| LV3403TR | 1/4" F. NPT | 1/2" F. NPT | 1/4" | 10 PSIG | Over Outlet | 1,500,000 | |
| LV3403TRV9 | 9 O’clock |
* Maximum flow based on 15 PSIG inlet pressure and 8 PSIG delivery
High Pressure First Stage Regulators
Provides accurate first stage regulation in two-stage bulk tank systems. These regulators handle vaporization of tanks up to 1200 gallons. Reduce tank pressure to an intermediate pressure of 5 to 10 PSIG. Also used to supply high pressure burners for applications like industrial furnaces or boilers. Also incorporated in multiple cylinder installations.
| Part Number | Inlet Connection | Outlet Connection | Orifice Size | Factory Delivery Pressure (PSIG) | Adjustment Range (PSIG) | Integral Relief Included | Vapor Capacity BTU/hr. Propane | Order |
| LV4403SR4 | 1/2" F. NPT | 1/2" F. NPT | 1/4" | 5 | 1-5 | Yes | 2,500,000 | |
| LV4403TR4 | 10 | 5-10 | ||||||
| LV4403SR9 | F. POL | 5 | 1-5 | |||||
| LV4403TR9 | 10 | 5-10 | ||||||
| LV4403SR96 | 3/4" F. NPT | 5 | 1-5 | |||||
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LV4403TR96 |
10 |
5-10 |
* When used for final stage pressure control, must either incorporate integral relief valve or separate relief valve should be specified in accordance with NFPA Pamphlet 58.
** Maximum flow based on inlet pressure 20 PSIG higher than the regulator setting and delivery pressure 20% lower than the setting.
Low Pressure Second Stage Regulators - 935,000 btu/hr.
Designed to reduce first stage pressure of 5 to 20 PSIG down to burner pressure, normally 11" w.c. Ideal for medium commercial installations, multiple cylinder installations and normal domestic loads.
Backmount Design
Mounts directly to house line piping. Eliminates need for union joints, elbows, and mounting brackets. Quick and easy to install.
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Part Number |
Inlet Connection |
Outlet Connection |
Orifice Size |
Factory Delivery Pressure |
Adjustment Range |
Bonnet Vent Position |
Vapor Capacity BTU/hr. Propane** |
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| LV4403B4 |
1/2" F. NPT |
1/2" F. NPT |
#28 Drill |
11" w.c. at 10 PSIG Inlet |
9" to 13" w.c. |
Over Inlet |
935,000 |
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| LV4403B46 |
3/4" F. NPT |
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| LV4403B46R* | ||||||||
| LV4403B66 |
3/4" F. NPT |
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| LV4403B66R* |
* Backmount design.
** Maximum flow based on 10 PSIG inlet and 9" w.c. delivery pressure.
Products>>Section A- RegO / ECII>>Regulators and accessories>>Page A-1
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