Oseco manufactures rupture disks, panels, and other pressure relief products in two climate-controlled, state-of-the-art facilities. Computerized load cells, used to manufacture our high-performance rupture disks, provide technology so precise that we can control scoring to within millionths of an inch.

Oseco is also the first rupture disk manufacturer to utilize an in-house five-axis laser. This exceptional laser allows us to provide reduced delivery times for emergency SureShip orders. In many cases, same-day service is available!

1980 • Oseco is incorporated by eleven major rupture disk technology players
1981 • Oseco begins manufacture of 30° STD and flat-seat FSTD rupture disks
1982 • Oseco develops CO composite rupture disks
1983 • Oseco rolls out its first explosion panel, the CRP
1985 • Oseco opens facility in the Netherlands as Oseco Europe begins operations
1986 • Oseco patents the revolutionary FAS disk
1987 • Oseco builds and moves to new 13,000-square-foot Broken Arrow facility
1988 • Oseco creates its first reverse-buckling disk
1989 • Oseco doubles facility size in response to industry growth
1994 • Oseco makes graphite disks available and begins work on a graphite successor
1997 • Oseco announces the creation of the PLR low-pressure, reverse-buckling disk
1997 • Oseco expands again, putting its second plant and its 5-axis laser online
1998 • Oseco attracts world safety leader Halma Group and begins negotiations
1999 • Oseco agrees to acquisition by Halma Group and appoints new president
1999 • Oseco starts Oseco Asia in Singapore (the Oseco Division of Halma Asia)
2000 • Oseco launches FLCOS disk/sensor and OTU units with versatile PRO disks
2000 • Oseco unveils image system with new product sheets and www.oseco.com
2001 • Oseco continues branching into new areas with sanitary FM-S and PRO-S disks
2001 • Oseco releases GR flat-metal disk as alternative to drawbacks of graphite
4/9/02 • Oseco Introduces New PRO-S Hygienic Rupture Disk
7/02/02 • Latest National Board Certificates List Oseco as Best Pressure Relief Provider Based on Flow Resistance
10/23/02 • Oseco Takes Safety to a New Level with PRO Rupture Disk
12/06/02 • Oseco’s New Rupture Panel Ideal for Power Generation Plants
3/17/03 • Oseco Introduces Sanitary Crevice-Free Rupture Panel

Oseco's acquisition by Halma Holdings, Inc., in 1999 makes Oseco unique. We have a small-company "can-do" attitude and big-business flexibility and resources: everything we need to make it happen.

On October 12, 1999, Mr. John Conacher of Halma announced the appointment of Dr. Joseph M. Ragosta as Oseco's new president. With a Penn State bachelor's in chemistry and a Cornell master's and doctorate, Joe has dramatically stepped up Oseco's pace of new product rollouts and simultaneously raised Oseco's already high standards for customer relationships, allowing us to serve you better.