Operating signal within 24 months, or from a single source.
What they make
Other Metal Valve and Pipe Fitting Manufacturing332919Pennsylvania Machine Works manufactures forged pressure fittings, including bar stock fittings, branch connections, pipe nipples, swages, and marine components in over 100 material grades. The company serves nuclear power, utilities, data centers, petrochemicals, wastewater treatment, and shipbuilding industries.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Products
Recorded against the company rather than this address. Federal award and drug records name the company, not the plant, so we cannot say which of its sites makes these.
Where these came from
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Alloy Surfaces Aston Plt | Chester | All Other Miscellaneous Chemical Product and Preparation Manufacturing 325998 | LIKELY ACTIVE | 0.8 KM |
| Alloy Surfaces Company Inc. | Chester Township | Small Arms, Ordnance, and Ordnance Accessories Manufacturing 332994 | LIKELY ACTIVE | 0.9 KM |
| Alloy Surfaces CO Inc/aston | Aston | Custom Roll Forming 332114 | UNVERIFIED | 1.0 KM |
| R. J. Machine Company, INC. | Upper Chichester | Machine Shops 332710 | ACTIVE | 1.4 KM |
| Curtiss-wright Flow Control Service, LLC | Aston | Other Aircraft Parts and Auxiliary Equipment Manufacturing 336413 | ACTIVE | 1.5 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 3 FEDERAL SOURCES, 8 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
EPA cross-references this facility in NPDES, PA-EFACTS, RCRAINFO, TRIS · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | AUG 2025 | AUG 2025 |
| EPA FRS | EXISTENCE | JUN 2016 | JUN 2016 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| ADDRESS LINE1 | SAM GOV | AUG 2025 |
| CAGE CODE | SAM GOV | AUG 2025 |
| CITY | EPA FRS | JUL 2026 |
| CITY | SAM GOV | AUG 2025 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| NAME | SAM GOV | AUG 2025 |
| REGISTRATION EXPIRATION | SAM GOV | AUG 2025 |
| STATE | EPA FRS | JUL 2026 |
| STATE | SAM GOV | AUG 2025 |
| WEBSITE | SAM GOV | AUG 2025 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.