Does an ammonia regulating valve require a bellows seal?
Thread Content
Does an ammonia regulating valve require a bellows seal?
Required: a medium that is low-temperature, toxic, and volatile.
It should be needed. Ammonia is a flammable and explosive gas.
We manufacture ammonia control valves using bellows
It’s not a highly toxic substance; the seals on ordinary control valves are sufficient for this purpose. Of course, it’s better to use bellows if one has the money for it
It is recommended to use a packing with low leakage; bellows can be used regardless of cost. 1. GBZ 2.1-2019 Occupational Exposure Limits for Hazardous Factors in the Workplace – Part 1: Chemical Hazardous Factors 2. SHT 3005-2016 Specifications for the Selection and Design of Automation Instruments in the Petrochemical Industry 3. GBT 26481-2011 Tests for Leakage of Valves 4. The Fifth Edition of the Manual on Control Valves
It is highly toxic, volatile, and belongs to the category of flammable and explosive gases; a bellows should be used.