RITE ENGINEERING & MANUFACTURING with
H O W - T O
SELECT BOILER
a
THIS IS THE FIRST IN A SERIES OF ARTICLES DESIGNED TO SHOWCASE ANALYTICAL, DATA-DRIVEN CONTENT. THE SERIES WILL SHOWCASE SOME OF THE FREQUENTLY ASKED QUESTIONS DISTILLERS HAVE FOR SUPPLIERS. THE GOAL IS TO COVER INFORMATION RANGING FROM BEGINNERS TO ESTABLISHED AND EXPERIENCED DSPS. WE HAVE BEEN REACHING OUT TO SUPPLIERS TO FIND OUT WHAT KIND OF QUESTIONS THEY RECEIVE, AND TO HELP US PROVIDE ANSWERS AND INSIGHT INTO A SPECIFIC RANGE OF TOPICS. OUR FIRST INSTALLMENT COMES TO US FROM THE GOOD FOLKS AT RITE-BOILER, ONE OF THE INDUSTRY’S LEADING MANUFACTURERS OF BOILER EQUIPMENT SINCE 1952.
I NEED A STEAM BOILER FOR MY DISTILLERY. DO I NEED A LOW PRESSURE STEAM BOILER OR A HIGH PRESSURE STEAM BOILER?
PSI the safety high pressure switch (called the high limit) will open and at 15 PSI the relief valve will open. A high pressure steam boiler is a Section I boiler and they are usually stamped for
Ask the company providing the distilling equipment, or look at
100, 125 or 150 PSI. They are more expensive than low pressure
the pressure rating of the equipment using the steam. MAWP
steam boilers and they require higher standards of
= maximum allowable working pressure. If it’s installation and monitoring than low 15 PSI then a low pressure steam boiler is all pressure steam boilers. you need. If the kettles are rated over 15 PSI then high pressure steam will boil your product faster.
DOES THE BOILER REQUIRE OTHER EQUIPMENT? Yes. You will need the following:
WHY IS THAT?
A condensate return tank/
There is a direct correlation between steam feed set (see Figure 1). A pressure and temperature. In the Steam Tables blow-down tank (Fig. 2). you find that 10 PSI steam equals 240 F. 15
A water softener (Fig. 3).
PSI steam equals 250 F. 100 PSI steam equals
A chemical feed system (Fig
338 F. 125 PSI steam equals 353 F.
4) and possibly a condensate
Fig. 1
transfer tank (Fig 5).
WHAT ARE THE OTHER DIFFERENCES BETWEEN A LOW PRESSURE AND A HIGH PRESSURE BOILER I SHOULD KNOW?
Fig. 2
DOES THE BOILER NEED TO BE INSTALLED IN A “BOILER ROOM”?
A low pressure steam boiler is an ASME Code This is an important question because in some cases the boiler Section IV Boiler stamped for 15 PSI. It can be may be installed “in the open” of a large room. Ask the architect operated up to 13- 14 PSI maximum; at 14+
and installing contractor if this is possible, since the addition of
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