National Board and ASME Accepted Testing Laboratories
Please contact the applicable facility for confirmation of their ability to test a particular valve. Also, please note that valves usually cannot be tested at both the maximum pressure and maximum capacity limits simultaneously.
For a list of Authorized Observers at a specific facility, please contact the facility directly.
Name/Address |
Fluids |
Pressure |
Size |
Capacity |
Anderson Greenwood Crosby
901 Co. Rd. 473
El Campo, TX 77437
281.274.4400
|
Nitrogen
Water
|
1000 psi
1000 psi
|
8"
4"
|
10-70000 scfm
5-2000 gpm
|
BS&B Safety Systems. LLC
7455 East 46th Street
Tulsa, OK 74145
918.622.5950
|
Air |
275 psi |
4" |
2000 scfm |
Continental Disc Corp.
3160 West Heartland Drive
Liberty, MO 64068
816.792.1500
|
Air
Air
Water
|
200 psi
650 psi
650 psi
|
4"
4"
4"
|
7200 scfm
6000 scfm
900 gpm
|
Dresser, LLC
12970 Normandy Blvd
Jacksonville, FL 32221
904.570.3150
|
Nitrogen
Water
|
700 psi
500 psi
|
4"
3"
|
4700 scfm
500 gpm
|
Farris Engineering
10195 Brecksville Road
Brecksville, OH 44141
440.838.7690
|
Air
Air
Water
Water
|
880 psi
500 psi
600 psi
700 psi
|
4"
6"
4"
4"
|
8000 scfm
8000 scfm
165 gpm
1059 gpm
|
Fike Corporation
704 SW 10th Street
Blue Springs, MO 64015
816.655.4615
|
Nitrogen |
285 psi |
4" |
7000 scfm |
Framatome GmbH
Technical Center - Components Qualification
Seligenstaedter, Strasse 100
Karlstein am Main
Germany 63791
+49.9131.900.69318 |
Steam
|
2600 psi (18 MPa)
|
2"
|
63,000 pph (8 kg/sec)
|
Leser GmbH & Company, KG
Wendenstrasse 133 - 135
D-20537 Hamburg, Germany
+49.40.25165-100 |
Air
Water
|
1450 psi
610 psi
|
16"
16"
|
24964 scfm
1057 gpm
|
Oseco, Inc.
1701 West Tacoma Street
Broken Arrow, OK 74012
918.258.5626 |
Air |
700 psi |
4" |
12000 scfm |
The National Board of Boiler
& Pressure Vessel Inspectors
7437 Pingue Drive
Worthington, OH 43085
614.888.8320
|
Steam
Nitrogen
Nitrogen
Nitrogen
Water
|
500 psi
580 psi
1100 psi
2025 psi
500 psi
|
4"
6"
4"
3"
4"
|
12000 pph
13000 scfm
15000 scfm
5000 scfm
550 gpm
|
Updated: 12/07/23 |