Legacy & Alternate IPAC Numbers

The cast aluminum S01C, S02C and S03C bodies with the Quick-Loc closure were the small-separator range through the 1980s and 1990s and are still found on nameplates (an S03CB0 was on the surplus market as recently as 2024). The WS01 to WS03 carry the same connections with a higher rated flow, so a WS unit drops in for a cast unit of the same size.

A water-cooled aftercooler built with stainless steel tubes carries a modified option block in place of the trailing 000. The one nameplate we have on record reads W1500FA SU00-S: an IPAC 2000 Inc. unit built in 2004 (National Board No. 8740) with 279 tubes in 304 stainless steel in a carbon steel shell, 93.2 sq ft, rated 200 PSIG on both sides, 4,785 SCFM and 241 GPM - the standard W1500 duty in stainless. Read it as: W1500 size, F fixed bundle, A 200 PSIG class, SU00 special-material option, -S stainless. If a nameplate carries a suffix that is not on this site, send it to us; the base number still identifies the unit.

Thermal Transfer Products (API Heat Transfer) publishes a cross-over guide listing its own aftercoolers against HiRoss units, rated at 250°F inlet, 100 PSIG, cooled to within 15°F of the ambient or of the inlet water. The guide is explicit that the match is thermally interchangeable, not dimensionally - connections, footprint and mounting differ - and the water-cooled ratings are two-stage figures that differ from IPAC's own tables. Where an IPAC unit is out of reach we quote both.

The SAC120 and SAC100 float traps sold from Niagara Falls are the same design that Hiross S.p.A. of Padova sold in Europe as the SAC 120 (part code 73401AA004) and that Fini rebadged as 9058317. Parker Hiross now supplies the HDF120NPTA - a 1/2" NPT mechanical float drain with vent adaptor, 232 PSIG, aluminum - as the direct replacement for the SAC120, and lists a larger SAC1 in the same family. A HiROSS PAC120 1/2" NPT mechanical zero-loss drain also turns up on the surplus market; treat it as a sibling of the SAC120 until a nameplate says otherwise. Hiross Denco filter housings such as the S2H (230 PSIG, 350°F) belong to the same Niagara Falls product family but are filters, not separators - we can identify them but they are outside the ranges catalogued here.

Reseller listings write the same numbers with a letter O in place of the trailing zeros (A16030BO), the current data sheet prints two of them slightly differently (A05000B00, A08030T00), and the Thermal Transfer Products cross-over guide shortens them to eight characters (A1603000, A00500B0). All refer to the same fifteen units, listed here.

The short form used on current IPAC sheets drops the option characters: W0110FA000 is simply W0110. Whether a unit is 51 or 59 Series is not in the number - read the overall length: 51-1/8 inches or 59 inches. A special-material build replaces the 000 block: the nameplate W1500FA SU00-S is a W1500 with 304 stainless tubes (see Legacy & Alternate Numbers).

Short forms are S04H, S4AH, S05V and so on; compact sizes are WS01, WS02, WS03. Horizontal list | Vertical list.