Contract Manufacturing
Precision Machining, Fabrication & Engineering Done Right
Proudly Manufactured in the USA
Primary Flow Signal (PFS) offers full-service contract manufacturing with state-of-the-art machining equipment, expert engineering, and dedicated customer support. From prototypes to full production runs, we deliver precision-machined parts for industries including oil & gas, industrial, medical, aerospace, and construction, with unbeatable quality, favorable pricing, and on-time delivery.

ITAR-Certified Contract Manufacturing
Built to the highest standards of quality and compliance.
PFS is registered with Sam.gov and with DDTC (ITAR), ensuring compliance with International Traffic in Arms Regulations.
Additional Certifications & Accreditations:
- ISO 9001
- ASME “S” & “U” Stamps
- Pressure Equipment Directive 2014/68/EU Module H (PED Module H)
- Canadian Registration Number (CRN)

Comprehensive Contract Manufacturing Capabilities
From CNC machining to welding, inspection, and reverse engineering.
With expertise in engineering, project management, and an unparalleled range of capabilities, PFS delivers top-quality results tailored to your specific needs. From small prototypes to large-scale assemblies, our processes are backed by industry-leading certifications and a steadfast
commitment to excellence.
And there’s hardly a material we can’t work with. Whether it’s aluminum, stainless steel, brass, copper, bronze, plastics, or any number of exotic metals, we’re happy to meet your contract manufacturing needs.
Machining & Fabrication Expertise
- High-precision wire EDM
- CNC milling (up to 86”)
- CNC turning (up to 86”)
- In-house welding (up to 144”)
- Surface & blanchard grinding (up to 36”)
Engineering & Quality
- Reverse engineering
- Inspection & examination
- Assemblies
- Forming capacities (diameters from 1/4” to 96”)
- Comprehensive NDE & testing services
- Finishing services
- Design support & documentation
Software Systems
- E2 Shoptech
- SolidCAM & SolidWorks
- DCAMCUT Pro
- CimWorks 2019
- AutoCAD & Procam
Best-in-Class Contract Manufacturing Facilities & Equipment
Continuously investing in new technologies to ensure precision and speed.
PFS operates a comprehensive machining and fabrication facility capable of handling complex projects with tight tolerances.

Highlights include:
- Skilled machinists combining manual and automated precision
- Vertical and horizontal lathes for a range of bore sizes and lengths
- Heavy-duty machining centers for accuracy and throughput
- Three 5-Axis Makino DUO 43s Wire EDM systems for superior repeatability
- In-house surface and Blanchard grinding for full process control
Reverse Engineering Expertise
Recreating unavailable or obsolete parts with precision.
Our reverse engineering team combines decades of engineering and manufacturing expertise to reproduce mechanical assemblies and components efficiently and accurately.
Common use cases include:
- Worn or obsolete machine parts
- Overpriced OEM consumables
- Replacing overseas-sourced components to avoid delays
- Heavy equipment parts made faster to prevent costly downtime
Our systematic approach and implementation of sound engineering principles result in a part that will always exceed OEM specifications and with a full in-house dedicated team you can be confident that Primary Flow Signal can handle your next reverse engineering requirements large or small.
Contract Manufacturing Industries Frequently Served
Trusted by leaders across demanding sectors.
Industrial
- Aerospace
- Construction & heavy machinery
- Industrial manufacturing
- Marine equipment
- Military & defense
- Oil & gas
- Machinery repair parts
Food & Consumer Goods
- Agriculture
- Food production & service equipment
- Wine & beer production
Medical & Life Sciences
- Medical testing equipment
- Pharmaceutical components
Why PFS?
Four Decades of Precision Manufacturing Excellence
Primary Flow Signal offers full-service machining and fabrication, proudly made in the USA. Founded in 1983, Primary Flow Signal began as a designer and manufacturer of Venturi-type flow measurement devices and has grown into a trusted global authority in precision differential pressure instrumentation and contract manufacturing. Today, we bring that same commitment to engineering excellence to every machined component and assembly we produce.
Our Work































Let’s Build Your Next Project Together
Partner with PFS for high-quality, U.S.-made machining and fabrication you can trust.