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Quotes - Engineering - SalesRequest a Quote
Four numbers size a heat exchanger: flow rate, entering temperature and leaving temperature on each side, and design pressure. Send those and you will get a part number, a price and a lead time. Everything else — materials, connections, code stamp, clearance — we can work through with you.
Start Your Request
Quote Request Form
Put the duty in the message box — flow, temperatures in and out on both sides, and design pressure. If you are replacing a unit, the nameplate or the old part number is usually enough on its own.
Rather talk it through?
The Four Numbers That Size a Unit
Flow rate, entering temperature and leaving temperature, on the hot side and the cold side. With those, the surface area follows arithmetic rather than judgement, and the selection is a matter of picking the shortest catalogued unit that carries it. Give us three of the four and we can usually solve for the fourth, but tell us which one you want held.
Design pressure and design temperature come next. They rarely change the size and they always change the price, because they decide shell thickness, tubesheet thickness and whether the unit needs a code stamp. Quote the system relief setting rather than the operating pressure.
Fluids, Not Just Water
Water on both sides is the simple case. Anything else changes the physics: glycol concentration lowers the film coefficient and raises the flow you need for the same duty, oil changes it much further, and steam is a phase change rather than a temperature drop, so we need the steam pressure instead of a leaving temperature.
Say plainly if either side is potable. That is what decides whether a double wall unit is required, and it is far cheaper to design for it than to discover it at submittal.
Codes and Certification
Tell us if the unit needs an ASME code stamp, a CRN for a Canadian province, or a particular TEMA class. Registration in a named province is worth flagging early, because not every catalogued model is registered everywhere and the alternative is a unit that cannot legally be installed.
Replacing an Existing Unit
If there is a nameplate, photograph it and send the picture. A Bell & Gossett part number tells us the shell diameter, the length, the pass arrangement, the tube material and the rating in one string, and we can confirm it or offer the current equivalent without any calculation at all.
Where the nameplate is gone, measure the shell diameter and the overall length, count the connections, and note their sizes and which way they face. That is normally enough to identify the family.
Space and Service Access
The constraint that catches people is tube pull clearance. A removable bundle withdraws back through the head it entered, so clear space at least equal to the bundle length is needed in front of the unit, plus room to handle it. Against a wall, in a bund or in a tight plant room, that clearance often decides the length before the thermal calculation does.
Tell us whether the unit mounts horizontally or vertically, and if the connection orientation is fixed by existing pipework.
Quantity, Schedule and Destination
Quantity affects the price and the lead time separately, so send the real number rather than a single unit you intend to multiply. A need-by date lets us tell you which selections are on the shelf and which are built, and a ship-to city lets the freight go on the quote instead of arriving as a surprise afterwards.
How It Works
From Request to Quote
1.
Send the Duty
The form above, an email, or a phone call. A marked up schedule or a photograph of a nameplate works as well as a typed specification.
Nothing has to be complete. If a number is missing we will tell you which one and why it matters.
2.
We Size and Select
We run the duty against the catalogued ranges and pick the shortest unit that carries it with sensible velocity and pressure drop.
If the duty sits between two models, or clearance rules out the obvious answer, you get both options with the trade-off written out.
3.
You Get a Quote
A part number, a price, a lead time and the performance the selection is based on, so the numbers can be checked rather than taken on trust.
Submittal drawings and ASME or CRN paperwork follow on request, before you commit to the order.
