Page 3 - BuTech - Technical information

PRESSURE/TEMPERATURE RATING GUIDE

Pressure/Temperature Rating Curve for Cold Worked 316 S.S.

100
o
CW Type 316SS Before 800 F
90
% of Rated Pressure @ Design Temperature

80

70

60

50

40

30
o
CW Type 316SS After 800 F
20

10

0
100 200 300 400 500 600 700 800 900 1000 1100 1200
o
Temperature in F
Notes:
1. This curve is valid for cold-worked type 316 stainless steel components providing operating temperature does not exceed
o o
800 F (426 C). After this temperature, the material is PERMANENTLY altered, and the component should be considered
as annealed from then on, derating it to 40% of its cold-worked value.
2. Curves and ratings presented here are average values for reference only, and can be significantly affected by pressure
and temperature charactistics of packing and trim materials. For extreme pressure/temperature requirements, please
contact factory for recommendations.
3. For pressure/temperature information for other materials, please see pages Tech-4 thru Tech-7.

Temperature Information Checklist
-423˚ to -100˚F -100˚ to 0˚F 0˚ to 650˚F 650˚ to 800˚F 800˚ to 1200˚F
-253˚ to -73˚C -73˚ to -18˚C -18˚ to 343˚C 343˚ to 427˚C 427˚ to 649˚C
Compression Type Not Not Recommended Not Not
Connections Recommended Recommended Recommended Recommended
Coned-and-Threaded
Required Required Recommended Required Required
Connections
Extended Stuffing Box Required May be requiredMay be requiredMay be required Required
(See note 1) (See note 2) (See note 2) (See note 2) (See note 3)
Notes:
o
o
1. Packing temperature not to go below -100 F (-73 )
o
o
o
o
2. Extended Stuffing box required for operation below -100 F (-73 ) and above 450 F (232 C) (with
o
o
Teflon packing) or 600 F (315 C) (with Teflon Glass packing).
o
o
3. Packing temperature not to exceed 800 F (427 C)
Tech-09 Page Tech-3
2121 EBCO Drive, Suite 1 • Erie, PA 16506 USA • Ph: (814) 833-4904 • Fax: (814) 833-2612 • E-mail: hq@butech-valve.com