ASME 1896-2:2000 pdf free download Design of Safety Valve Connections Section I
Inquiry: For Section I construction, what design crite- ria may be used for boiler proper safety valve inlet connections
Reply: It is the opinion of the Committee that, for Section I construction, the following design criteria may be used for safety valve inlet connections to the boiler proper.
(a) For the condition with the safety valve closed, the wall thickness of the connection shall be no less than required by the rules of PG-27 for the internal pressure using the maximum allowable stress from Table 1A of Section II, Part D; and
(b) For the condition of safety valve operation (blow- ing steam), the combined pressure stress and bending stress from internal pressure plus valve reaction forces may exceed the allowable stresses in Table 1A of Section II, Part D, but shall not exceed the values shown in Table 1.
(c) This Case number shall be shown on the Manufac- turer’s Data Report.
ASME 1896-2:2000 pdf free download
