Product Overview

2/2
SERIES
K3A5
4
COMBUSTION
388
Specifications (English units)
Pipe
Size
(ins.)
Orifice
Size
(ins.)
Cv
Flow
Factor
Gas
Capacity x
Operating Pressure
Differential (psi)
Max.
Fluid
Temp.°F
Catalog Number
Const.
Ref.
Agency
Wattage
Approx.
Shipping
Weight
(lbs)Btu/hr. Min. Max.
24V
60 Hz
110-120V
50-60 Hz
220-240V
50-60 Hz
UL FM CSA
COMBUSTION (Fuel Gas) - NORMALLY CLOSED
3/8 0.456 4 215,000 0 10 77 K3A531U K3A532U K3A534U 1
H H H
16.7 1.4
1/2 0.687 6 350,000 0 6 77 K3A541U K3A542U K3A544U 1
H H H
16.7 1.4
3/4 0.812 9 520,000 0 3 77 K3A551U K3A552U K3A554U 2
H H H
16.7 1.5
1 1.000 14 755,000 0 1.5 77 K3A561U K3A562U K3A564U 3
H
-
H
16.7 1.7
H = Safety Shutoff Valve. x 1” W.C. Drop @ 2” W.C. Inlet Pressure, 1,000 Btu/cu.ft. or more, 0.64 Specific Gravity Gas.
Specifications (Metric units)
Pipe
Size
(ins.)
Orifice
Size
(mm)
Kv
Flow
(m
3
/hr)
Gas
Capacity x
Operating Pressure
Differential (bar)
Max.
Fluid
Temp.°C
Catalog Number
Const.
Ref.
Agency
Wattage
Approx.
Shipping
Weight
(kgs)Btu/hr. Min. Max.
24V
60 Hz
110-120V
50-60 Hz
220-240V
50-60 Hz UL FM CSA
COMBUSTION (Fuel Gas) - NORMALLY CLOSED
3/8 12 3.4 215,000 0 0.7 25 K3A531U K3A532U K3A534U 1
H H H
16.7 0.6
1/2 17 5.1 350,000 0 0.4 25 K3A541U K3A542U K3A544U 1
H H H
16.7 0.6
3/4 21 7.7 520,000 0 0.2 25 K3A551U K3A552U K3A554U 2
H H H
16.7 0.7
1 25 11.9 755,000 0 0.1 25 K3A561U K3A562U K3A564U 3
H
-
H
16.7 0.8
H = Safety Shutoff Valve. x 1” W.C. Drop @ 2” W.C. Inlet Pressure, 1,000 Btu/cu.ft. or more, 0.64 Specific Gravity Gas.
K3A5R1