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1" Hub Ended Globe Valve

2010-10-29

1" Globe Valve, 450 Bars Hub ended, designed to 450 bar for (-35°C to 170°C), RB, OS & Y, Press Seal Bonnet, Metal Seated.API 602 covers 1" globe valves but only up to Class 1500.  API 600 covers only gate valves.
Consequently, I think you are left with ASME B16.34 which is a generic valve standard and does not specifically cover globe valves. Myself, I would order a valve certified as compliant to ASME B16.34 and which complies with the applicable requirements of API 602 (e.g., trim codes, etc.). I would probably mandate a welded bonnet with API Trim #5 (full hardfacing) for general hydrocarbon services although it sounds like the client wants a pressure seal bonnet. I don't think I would bother with a pressure seal bonnet in a 1" valve.
I don't think you understood my comment on the hub ends.  I think it extremely unlikely that any manufacturer can provide a forging which includes both the valve body and the hub ends.  In a case like this, it is more typical that the valve supplier will take a standard butt weld end valve and they will attach the hub ends that you specify by welding and then they will ship you a  globe valve which meets your requirements but it will not be a one piece forging - it will have been assembled by welding.


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