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Orifice plate in HCl (gas) service

Orifice plate in HCl (gas) service

Orifice plate in HCl (gas) service

(OP)
Hi fellow engineers,

One of our Customers is asking us to size an orifice plate for Hydrochloric acid (gas) service. Pipe size is 1/2", PN 40, upstream pressure 37 barg, upstream temperature 15°C, flow about 100 kg/h.
I found out that SS 316 is not suitable for this kind of service: do you have any suggestion with regard to the material we should use to manufacture the plate?

Thank you in advance for your kind suggestions.

Regards,

Stefano

RE: Orifice plate in HCl (gas) service

Hastelloy C will most probably work or a ceramic coated stainless steel.

RE: Orifice plate in HCl (gas) service

Or solid ceramic, but be careful which one you use.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

RE: Orifice plate in HCl (gas) service

If it's truly dry HCl you'll be fine with a number of choices, Hastelloy C being a solid one as already mentioned. If it's at all wet, you'll need nonmetallics or tantalum.

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