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Products>>Section A- RegO / ECII>>Regulators and accessories>>Page A-2

                                                                                                                                                  


90° Low Pressure Second Stage Regulator - 1,000,000 btu/hr.

Designed to reduce first stage pressure down to appliance pressure, normally 11" w.c. Ideal for medium commercial installations, vapor meter installations and normal domestic loads. Its right angle design mounts to a vapor meter, or directly to the house piping. Compact design makes for ease of installation in new and retrofit install situations. The LV4403B66RA will retrofit into existing installations that are currently using a 90°, right angle regulator.

Part Number 

Inlet Connection 

Outlet Connection 

Orifice Size 

Factory Delivery Pressure 

Adjustment Range 

Bonnet Vent Position 

Vapor Capacity BTU/hr. Propane*

Order
LV4403B66RA

3/4" F. NPT

3/4" F. NPT

3/16" 

11" w.c. at 10 PSIG Inlet

9" to 13" w.c. 

Over Inlet

1,000,000 
LV4403B66RAB**

* Maximum flow is based on 10 PSIG inlet and 9” water column delivery pressure. 

** Mounting bracket included.

LV4403B66RA LV4403B66RAB

Low Pressure Second Stage Regulators- 1,600,000 to 9,750,000 BTU/hr.

Designed to reduce first stage pressure of 5 to 20 PSIG down to burner pressure, normally 11" w.c. Ideal for larger commercial and industrial applications, multiple cylinder installations and large domestic systems.

Part number 

Inlet Connection 

Outlet Connection 

Orifice Size 

Factory Delivery Pressure 

Adjustment Range 

Bonnet Vent Position 

Vapor Capacity BTU/hr. Propane*

Order
LV5503B4

1/2" F. NPT

3/4" F. NPT

1/4" 

11" w.c. at 10 PSIG Inlet

9" to 13" w.c. 

Over Inlet

1,600,000 
LV5503B6 

3/4" F. NPT
LV5503B8

1" F. NPT

9/32" 

 2,300,000 
LV6503B14

 1 1/2" F. NPT  

1 1/2" F. NPT 

5/8" 

8 1/2"  to 14" w.c.

 8,000,000 
LV6503B16

2" F. NPT

2" F. NPT

9,750,000 
LV5503 Series     LV6503 Series

 

Products>>Section A- RegO / ECII>>Regulators and accessories>>Page A-2