Is this configuration violate any codes (US & Canada)?
Is this configuration violate any codes (US & Canada)?
(OP)
The attached drawing is a naphtha heater. Naphtha can be blocked in while the steam keeps flowing. A thermal relief valve is provided for such a scenario. The PSV directly discharges to the OWS (Oil Water Sewer). We realized that it is not a good design; however, it is a grandfather plant. Does this configuration violate any codes (NFPA) (US & Canada)?
Thanks in advance.
Thanks in advance.





RE: Is this configuration violate any codes (US & Canada)?
Thanks
RE: Is this configuration violate any codes (US & Canada)?
Thermal expansion relief isn't going to discharge much material- a tiny burp will relieve the pressure. But what happens if something keeps the PSV from resealing? Or are there any other cases that may cause the relief valve to discharge?
RE: Is this configuration violate any codes (US & Canada)?
RE: Is this configuration violate any codes (US & Canada)?
Snorgy's right that a 1x2" relief valve is probably capable of leaking the thermal expansion relief case when fully closed. What case was it really sized for?
RE: Is this configuration violate any codes (US & Canada)?