Pressure relief and ammonia discharge pump
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Let’s discuss how to relieve pressure and discharge the urea ammonia pump using the aqueous solution method. What are the negative effects of allowing the pump body to frost over?
For the ammonia discharge pump, ensure that there is no pressure inside the pump (the pressure gauge reads zero). If maintenance is required, the pump body must be flushed; once the ammonia smell is gone, flushing can be stopped, the water can be drained, and then the pump body can be disassembled for repair. Frost forming on the pump body indicates that there is still liquid inside the pump. If there is no pressure, water can be used for flushing (the water temperature should not exceed 90 degrees) until it is thoroughly cleaned.