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149 CONGRESS ST, LOWELL, MA
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Engineering & Public Procurement Reference Dossiers

Technical Cross-Reference & Public Procurement Library

Practical field guides for steam trap cage unit conversions, obsolete circuit breaker and fuse identification, and Massachusetts COMMBUYS FAC124 / MHEC G14 & G19 purchasing.

Plumbing, PVF & Steam Engineering

New England Institutional Steam Trap & Barnes & Jones Cage Unit Cross-Reference Guide

Across 1920s–1980s Massachusetts and New Hampshire schools, municipal buildings, churches, hospitals, and mill complexes, failed steam traps are the #1 cause of boiler short-cycling, water hammer, overheated rooms, and wasted fuel. Learn how to identify legacy trap bodies and drop in calibrated Barnes & Jones Cage Units without breaking corroded radiator unions.

Read Complete Guide (GUIDE 01 • STEAM SPECIALTIES & HYDRONICS) →
COMMBUYS FAC124 • MHEC G14/G19 • M.G.L. c. 30B

Massachusetts Public Buyer’s Guide: COMMBUYS FAC124 (#201354), MHEC G14/G19 & Form ST-5 vs. ST-4 Rules

Public facility managers, school business administrators, housing authorities, and university buyers in Massachusetts can bypass lengthy three-quote or formal bid delays under M.G.L. c. 30B by ordering directly through Frank P. McCartin Co., Inc.’s active OSD Statewide Contract FAC124 (Vendor #201354) or MHEC Cooperative Contracts G14 and G19.

Read Complete Guide (GUIDE 02 • MASSACHUSETTS PUBLIC PROCUREMENT & TAX COMPLIANCE) →
Electrical & Industrial Electronics

Identifying & Replacing Obsolete Circuit Breakers, Fuses, Motor Starters & Micro Switches

When a 40-year-old motor starter, special time-delay relay, or molded-case circuit breaker trips in an older school boiler room or manufacturing line, replacing the entire panelboard is rarely feasible on short notice. Here is how our Electrical & Electronics Desk (978-454-9101 • ELE@goindustrialsupplies.com) cross-references and sources drop-in replacements.

Read Complete Guide (GUIDE 03 • LEGACY ELECTRICAL, ELECTRONICS & MOTOR CONTROLS) →
149 CONGRESS ST, LOWELL, MA • TRADE COUNTER & MUNICIPAL DESK COMMBUYS #201354 • MHEC G14 / G19

Need an Engineered Cross-Reference for an Unlisted Part?

Direct counter routing to Electrical & Electronics (ELE@goindustrialsupplies.com • 978-454-9101), Plumbing, PVF & Steam (PVF@goindustrialsupplies.com • 978-454-7606), or Finance/Tax-Exempt (ar@goindustrialsupplies.com • 978-453-1681).

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