A legacy of precision. A future built to perform.
Haygor supports demanding industrial operations with engineered diaphragm seals, instrumentation service, calibration, contamination control, machining, fabrication, and rapid-response expertise.
Who is Haygor?
Haygor Instrument & Company, Inc. is a Texas-based manufacturer and service partner focused on diaphragm seals and critical process instrumentation.
Founded in Pasadena in 1973 as a small job shop, Haygor has grown by solving practical measurement and maintenance problems for industrial customers. The company combines precision manufacturing with deep instrumentation knowledge, enabling its team to support both standard requirements and difficult, application-specific work.
Today, Haygor remains privately owned and led with a straightforward objective: deliver dependable work, remove roadblocks, and make the customer’s job easier.
- Founded
- 1973 in Pasadena, Texas
- Headquarters
- 540 Preston Road, Pasadena
- Core specialty
- Diaphragm seals and process instrumentation
- Service model
- Standard, custom, repair, and rapid response
From a small job shop to a complete instrumentation partner.
Haygor began in 1973 with practical shop capability and a commitment to doing difficult work well. Over time, the company expanded from instrumentation sales and repair into precision diaphragm seal manufacturing, calibration, specialized cleaning, machining, fabrication, and engineered assemblies.
The business has grown, but the operating principle remains the same: understand the application, own the work, and deliver a reliable result.
Capabilities connected around the process.
Haygor brings product engineering and service expertise together, helping customers move from application data to a practical, buildable, and maintainable solution.
Diaphragm seal systems
Standard and custom assemblies for corrosive, viscous, sanitary, high-temperature, high-pressure, and other demanding measurement points.
Explore seals →Remanufacture & repair
Restore gauges, transmitters, controllers, valve actuators, filled systems, and industrial electronics to dependable service.
View repair services →Calibration & testing
Pressure calibration, system verification, fill services, functional testing, documentation, and NIST-traceable support.
View calibration →Cleaning & contamination control
Specialized preparation for oxygen, chlorine, nitrogen, ethylene oxide, and other critical-service environments.
View cleaning services →Machining & fabrication
Precision components, material selection, custom parts, welding, and application-driven fabrication for specialized requirements.
View manufacturing →Emergency response
Rapid support for critical instrumentation issues, urgent repairs, filled systems, calibration needs, and unplanned downtime.
Request support →Built to remove roadblocks—not add another vendor.
Customers come to Haygor for practical answers, responsive service, and work that holds up under pressure.
Innovative
Patented solutions, material knowledge, and creative engineering for applications that do not fit a generic part number.
Fast
Efficient quoting, practical lead times, and rapid-response support when operational urgency changes the plan.
Reliable
Controlled manufacturing, experienced technicians, and accountability from application review through delivery.
Easy to work with
Clear communication, direct access to expertise, and a team focused on helping customers reach a workable answer.
Experienced leadership, grounded in the work.
Haygor’s leadership team combines decades of company knowledge with a clear focus on quality, innovation, responsiveness, and customer success.
About Haygor FAQ
A starting point for customers evaluating Haygor as a diaphragm seal and instrumentation partner.
What does Haygor manufacture?
Haygor manufactures standard and custom diaphragm seal assemblies and related instrumentation components. Configurations are developed around process media, pressure, temperature, connection, instrument, material, and installation requirements.
Does Haygor repair instrumentation as well as manufacture seals?
Yes. Haygor supports repair and remanufacture of gauges, transmitters, controllers, valve actuators, filled systems, chart recorders, and industrial electronics, alongside calibration, testing, cleaning, machining, and fabrication services.
Where is Haygor located?
Haygor’s headquarters and expanded primary facility are at 540 Preston Road in Pasadena, Texas.
Can Haygor support custom or difficult applications?
Yes. Application-specific work is a core part of Haygor’s model. The team reviews the process, instrument, materials, operating conditions, installation constraints, cleaning requirements, and service objectives before recommending a configuration.
Does Haygor provide emergency service?
Haygor provides 24-hour emergency support for critical instrumentation needs. Customers should contact the team directly with the instrument details, process requirements, and required timing.
Put more than 50 years of practical instrumentation experience to work.
Share the process conditions, instrument details, timing, and service requirements. Haygor will help define the next practical step.