Our cal cylinders are generally 35% H2S at 2000 psi. The other day a cylinder regulator failed open exposing the low pressure side (and sample system) to bottle pressure.
I wasn't present at the event, but I did see the valve poppet after the regulator was torn down. It was coated w/ a powdery scale. Also looked like the poppet (I'm assuming SS) was pitted.
We have been ordering silcosteel regulators(this one was not) and I was wondering if there is a limit to the functionality of silcosteel? We generally use silcosteel tubing on sample systems for accuracy/ response time but not so much as a mechanism to protect the underlying stainless steel.