Can a fully stainless-steel pressure gauge be used as a substitute for a gauge designed specifically for ammonia?
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Can a fully stainless-steel pressure gauge be used as a substitute for a gauge designed specifically for ammonia?
It depends on whether there is copper in the pressure gauge, as ammonia is highly incompatible with copper.
How can one tell if there is copper or tin inside a fully steel product? Can it be seen from the model number?
Why isn’t there a dedicated pressure gauge for ammonia? It is precisely because ammonia cannot come into contact with copper that specialized instruments are necessary.
Some people think that all-stainless steel pressure gauges can replace ammonia pressure gauges, but I don’t think so; the standards don’t mention this.
There are special pressure gauges for ammonia; stainless steel gauges can be used as a substitute, but the cost will be higher