Thread Content
This post was last edited by hfh83105 on 2010-12-15 at 12:52. 2H3 HTO-03aCB is a way of denoting a safety valve; what do each letter and digit specifically represent? I know that in 2H3, the 2 refers to the inlet diameter of the safety valve being 2 inches (DN50), and the 3 refers to the outlet diameter being 3 inches (DN80). Please help me understand the rest of it; thank you!
2H3 HTO-03aCB5 c1 L5 – are these the ways in which the manufacturer denotes its product models?
Reply to 2# 383770393: No, it’s the model used when we submit plans; the model produced at the factory follows national standards, like A42Y-25C-50
For the safety valves of Beijing Aerospace 11th Institute, call them and ask
2H3 HTO-03aCB: H stands for channel code; HTO is the manufacturer’s code; 03a indicates 300LB strength; CB means carbon steel. All of this is just my guess! If you know which manufacturer it is, you can call and ask!
It is a model from our 11th Aerospace Research Institute; safety valves that meet American standards do not have a unified model number – it is a model from our series. Thank you!
Here is some information regarding ANSI safety valves; please review it, as I hope it will be helpful to you. However, the attachment is too large, so if you add me as a friend, I can send it to you in another format.
HTO refers to a conventional safety valve
HT denotes the brand of Aerospace 11th Institute; O stands for ordinary fully open type, 03a represents 300 low pressure, C refers to carbon steel, and B indicates valve seat sealing