Call Toll Free: 1-800-PENN-USA

24 Hour Services Available
Penn Machine is announcing a new list price schedule for Fittings in 304/L, 316/L, and Alloy 20. The new list prices will go into effect on January 3rd, 2022. New list price sheets are available, here on website (304-10, 316- 10, and A20-11) on 12-17-21. These reflect a minimum 25 % increase.

Call us 24 hours, seven days a week at
1-800-PENN-USA. Thrill your customers!!!

Socket weld by threaded fittings are in stock in all grades of material: A105, stainless, chrome for 90's, tees, couplings, reducer couplings, reducing inserts. Also available in any combination of end prep: SW x THRD , THRD x SW, SW x THRD x SW, etc.

MTRs, packing lists, proof of delivery, tracking information all available on the pages below. If you have any problems accessing this information, please contact your inside sales rep. here at Penn Machine.

2015 Supply House Times PVF Ring of Honor Award

Penn Machine is the recipient of the 2015 Supply House Times PVF Ring of Honor award! Read more about us starting on Page 32 of the December 2015 issue of Supply House Times.

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Quality • Service • Partnership

This is Penn Machine's corporate slogan. It refers not only to the dedication we hold towards our customers, but extends to our employees as well. We believe in providing great services to our employees and customers because without them, nothing would be possible.

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Penn Machine offers a wide variety of products to serve all of your needs. The complete line of PENN Forged Pipe Fittings are manufactured for those piping applications where quality cannot be compromised. We look forward to supplying you a world-class quality product with value added features that stay with our product long after it is shipped from any of our facilities.

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Special Services

At Penn Machine, we believe no order is too difficult to process. We custom manufacture specialty fittings to your exact specification with electropolishing, PMI testing and several other value added services. Box quantity packaging and customized labeling services are available as well.

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Penn Machine manufactures forged pressure fittings in carbon, stainless, chrome moly, aluminum, copper nickel, hastelloy, monel and a variety of other special exotic alloys. Each alloy is selected because of its special characteristics under various operating environmental stresses.

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ISO 9001 / PED Certification

Effective November 15, 2007 Pennsylvania Machine Works, Inc. upgraded our ISO 9001 Certification to include compliance with EU Pressure Equipment Directive (PED) Directive Annex 1 paragraph 4.3. Lloyds Register Quality Assurance (LRQA), a European Registrar, completed the certification process.

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Run Consolidations

What does Consolidation mean in the Piping Industry?
Why are Consolidations good for you?
Are you unfamiliar with piping terminology?

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Which One Would You Buy? Oil Coated vs Phosphate Coated

Learn about the effects of "oil only" as surface protection for your fittings.

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Since its founding in 1931, Pennsylvania Machine Works has grown to become a leader in the forged pressure fitting industry. Each distinct division, Penn Machine, US Drop Forge and Penn Texas contribute to the unique ability of Pennsylvania Machine Works. Forged pressure fittings, 1/8" through 6" and branch outlet connections 1/8" through 72" are all manufactured at our various locations.

Expect quick and complete deliveries as Penn Machine maintains a large inventory of the most requested items, as well as a variety of special fittings for quick turnaround jobs. Custom pieces are also available. If you need it, Penn Machine has it.

Industries Served


Our products are furnished to the most demanding requirements of the marine, nuclear power, petrochemical, shipbuilding, cryogenic and steel making industries and are used in many other critical industrial applications.


The specialists in the sales department can help you with either your O.E.M., stock or emergency needs. Available 24 hours a day, 7 days a week, a Penn Machine sales representative is your best choice to solve any forged, high temperature or special wall problem.



Penn Machine and Western Forge and Flange are pleased to announce our partnership.

Click here for more details.


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