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asme & tema

asme & tema

asme & tema

(OP)
Why two standards for hx-some one asks for ASME VIII and TEMA "C"? what if diffrent results from these two codes?

RE: asme & tema

Forgive my ignorance, but what is TEMA?

Paul Ostand
www.ostand.com

RE: asme & tema

ASME covers the pressure vessel requirements and TEMA the heat exchanger standard design ond performance requirements.

RE: asme & tema

(OP)
TEMA covers the design, fabriaction, installation and maitenance of HX. ASME UHX also regualte HX design.

RE: asme & tema

TEMA stands for Tubular Exchanger Manufacturers Ass'n.

rmw

RE: asme & tema

Dangit I love it when a plan comes together unclesyd!!!!

rmw

RE: asme & tema

Note that as of 2004, ASME is the primary design code for heat exchangers.  TEMA is no longer valid for new construction.  TEMA is approved for use on repair of existing vessels/HTX under the rules of R stamp.

RE: asme & tema

Tankman650: Yes and no,as UHX does not apply to everything. You could still use TEMA under U-2(g).

RE: asme & tema

you can use asme sec viii for some part of heatexchenger such as tubesheet or sylinder of hex under pressure
otherwise TEMA is only for the shell and tube hex.

RE: asme & tema

TEMA also has some very helpful information such as suggested good practice for the design of saddle supports for horizontal exchangers, how to adjust flange calculations to include the pass partition gaskets, etc.

RE: asme & tema

cmsmeng,

Please find the related thread.

LOST in UHX Tubesheet Calc!!!!
thread292-97171

- In the refinery, I always refer to TEMA type R.
- Code Case 2429 was expired. I do not know the updated information for the subject.

RE: asme & tema

cmsmerg,

The design of tubesheet in accordance with ASME is very economical compared to TEMA. TEMA calls for minimum tubesheet thickness based on size of tubes, where in case of ASME this requirement is not mandatory.

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