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The LV3403B4 is designed to reduce first stage pressure of 5-20 PSIG down to burner pressure normally 11” w.c. Designed as a second stage regulator for smaller applications with flow requirements up to 450,000 BTU’s/hr, they are ideal for homes, mobile homes, and cottages.

Part Numbers:

Part Number	Inlet x Outlet Connection	Orifice Size	Factory Delivery Pressure	Adjustment Range	Bonnet Vent Position	Vapor Capacity BTU/hr Propane*
LV3403B4	½” F. NPT	7/32”	11” w.c. At 10 PSIG Inlet	9” to 13” w.c.	Inlet	450,000
LV3403B4V3	½” F. NPT	7/32”	11” w.c. At 10 PSIG Inlet	9” to 13” w.c.	3:00	450,000
LV3403B4V0	½” F. NPT	7/32”	11” w.c. At 10 PSIG Inlet	9” to 13” w.c.	Outlet	450,000
LV3403B4V9	½” F. NPT	7/32”	11” w.c. At 10 PSIG Inlet	9” to 13” w.c.	9:00	450,000

* Maximum flow based on 10 PSIG Inlet 9” w.c. delivery pressure