Clippard's plunger-actuated regulators are made in relieving or non-relieving forms and will work with a good pressure rating setup even if the downstream conditions in a spot change. This does not compensate for any changes in downstream flows or pressure levels. It does not have a vent to the atmosphere and the output pressure can go up if a downstream event occurs. This is made with a brass and stainless steel body and can manage 300 psig of inlet pressure at the greatest setting.