1-805-484-2992
Quotes - Engineering - Sales
Replacement Bundles
| PRODUCT | TYPE | STYLE | RATING |
|---|---|---|---|
| Tube Bundle | Shell & Tube | Straight Tube | 150 PSI / 375°F |
Specifications
Configuration & Size
Fits Shell:
6" or 8" Diameter
Shell Length:
54", 72", 84" and 96"
Passes:
Two Pass
Design:
Sanitary or 3-A Sanitary
Materials
- Tubes: 304 or 316 Stainless Steel
- Tubesheet: Stainless Steel
- Head Seal: O-Ring
- Baffles: Stainless Steel
Replacement Bundles for Sanitary Steam-to-Water Exchangers
The Part That Wears Is the Part You Replace
In a steam-to-water shell and tube, the shell is a pressure vessel that sees clean steam and lasts for decades. The tube bundle is where the work happens: hard water scales it, aggressive CIP chemistry attacks it, a frozen line or a steam hammer splits a tube. On the O-ring head design used across this range the bundle was always meant to come out, so the sensible repair is a new bundle in the old shell.
What you get. A complete straight-tube bundle with its tubesheet and baffles, in the same material as the original: 304 stainless for the standard units, 316 stainless with the 3-A designation for the product-contact utility units. The bundle number ties to a shell size, 6 or 8 inches by 54 to 96 inches long, and each bundle page on this site names the complete unit it fits.
Why not retube? Retubing a sanitary bundle means cutting and re-welding every tube-to-tubesheet joint, then polishing each weld flush so it cleans in place. On a two-pass bundle of this size the labor exceeds the cost of a new bundle, and the result is only as good as the shop doing the welding. A catalogued bundle arrives finished, pressure tested and ready to seal.
The changeover. Isolate steam and water, drain the shell, pull the head, slide the old bundle out and the new one in, fit a new O-ring, and re-make the head. The piping does not move. Most plants schedule it into a CIP window rather than a shutdown. If your unit is not one of the twelve below, send the shell diameter, length, tube count and material and we will match it.
The complete unit each bundle fits; the O-ring head comes off and the bundle changes without touching the piping.
Request a QuoteWhen a Bundle Is Replaced
Matching a Bundle to the Shell It Came From
Four things have to agree: shell diameter, shell length, tube material and pass arrangement. The first two are on the nameplate or measurable with a tape; the diameter is the outside of the shell pipe and the length is tube length, not overall length with the head fitted. Material is the one that trips people up. A 304 bundle in a 316 unit will fit and seal, but it will not be the 3-A build the plant was inspected on, so match the suffix, not just the size.
The old bundle is worth a look before it is scrapped. Uniform scale across all tubes says the water is hard and a softener or a lower steam pressure would extend the next bundle. Damage concentrated at the steam inlet says the impingement plate or the steam velocity needs attention. A few split tubes near the tubesheet after a cold snap say the unit was not drained. None of these are faults in the bundle, and all of them will take the new one out the same way.
Keep the O-ring with the bundle order. It is a wear item, it seals the product side, and a reused ring is the most common reason a fresh bundle leaks on the first steam-up. Send the complete unit part number if you have it: 1-805-484-2992
