Controlled Pressure Receivers (CPR), mostly seen in industrial ammonia refrigeration systems, permits to avoid recirculation pumps.
A controlled pressure receiver mixes saturated and return liquid lines and feds evaporator with partially subcooled liquid. With properly adjusted liquid feed rates and set pressure regulators, CPR liquid overfeed systems often represent the most efficient option in system design. Some of the advantages of a controlled pressure receiver systems are the elimination of pumps, excellent evaporator heat transfer and the possibility of back-regulating evaporators.
Docal Controlled Pressure receivers are custom made and are ASME certified (U stamp our UM stamp) and can also bear Canadian registered number (CRN) from CSA B51 for Canada or with National Board for USA. Our CPR can be made of a variety of materials such as carbon steel, 304 or 316 stainless steel or other exotic materials. Post-weld Heat treatment, corrosion allowance and liquid level indicators are available as options.
