Can there be a very small completed electric boiler stamped only with U-stamp and the letters UB (special service), that is, without the E-stamp (ASME I)?
Dear colleagues
I have designed a forged flat head according to fig. UG-34 sketch (b-2) / UG-34(d)(3). The length of flange is quite large, so that the flange-shell weld is away from the corner (radius r) and from the hub (tapered zone).
See attached figure, with dimensions.
The question I...
Dear colleagues:
Flat heads according to UG-34 (d) (1), (2) and (3) shall be “forged”. Here “forged” means a forming process that implies heating, or else, the flat head may be produced by cold forming according to UG-79?
Dear forum members,
I was surprised that the SA-312 grade 904L pipe has an application limit of 371°C (700°F) for ASME VIII-1, while in ASME B31.3 the limit drops to 260°C (500°F). Does anyone know the reason for this big difference?
In the framework of ASME VIII-1, can I make a RePad in two pieces? (See attached figure)
The welds between the two parts would be butt. There would be a ventilation hole in each part.
Can the longitudinal welds be considered as category A and the circumferential category B as per Fig UW-3...
The Spanish regulation of boilers (RD 2060/2008 ITC EP-1) establishes that the boiler room must have reinforced concrete walls of 20 cm thickness. Doors can not exceed 1.2 x 2.1 m. The roof has to be of light material. The objective is to protect the people outside the room, in case of boiler...
In ASME PTB-4, example E.4.12.2 - Reinforced vessel of Rectangular Cross Section, there is an inconsistency in the stiffener data: The moment of inertia is not consistent with the height and area of the rectangular section. Let's see:
- Stiffener shape: rectangular
- Stiffener cross sectional...
