4" Horizontal Boiler

Specifications

Diameter 4 " (100mm)
OA Length (including burner) 9.5" (240mm)
Length of pressure vessel 7.5 " (190mm)
Flue tube diameter 2" (50mm)
Number of cross tubes 8
Number of longitudinal stays 2
Outer shell thickness 16G (1.6mm)
Approximate capacity 900ml
Max working pressure 80psi (5.2 bar)
Test pressure 160psi (11 bar)
Weight including burner 2.75kg
Burner diameter 2 " (50mm).
Fuel Butane or butane/propane mix.
4 off 1/4"x40tpi bushes in backhead for water gauge, pressure gauge and check valve.
1 off 5/16"x32tpi bush for safety valve.
1 off 3/8"x32tpi bush for steam outlet.
2 blind bushes tapped 2ba are fitted in the bottom of the boiler to allow mounting in a suitable cradle.
Measured steam output 800 cu ins/min (13110ml/min) at 50psi using 65/35 mix gas. .

 
Suitable for larger models. This boiler can be fitted with a single element superheater and exhaust steam blower. A 3/8"x32 to 1/4"x40 adaptor is available to enable 1/4"x40 steam valve to be mounted. A steam manifold is also available to fit in the 3/8" bush to give an additional 3 1/4"x40 outlets if required. The pictures show a fully fitted boiler with safety valve and syphon, pressure gauge, steam valve, water gauge, check valve, exhaust steam blower and superheater. See the Fittings section for details and prices of these.
The basic boiler, shown below, is supplied with burner, gas jet assembly and a 1 3/8 " (35mm) diameter x 7 1/2" (190mm) long chimney.

 

Basic boiler £351.00

Boiler complete with all fittings shown above £477.00

 

 

 

 

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