Your Guide To Monthly Fire Pump Inspection No Flow Test Youtube How often is a no flow test required? the no flow (churn) test of fire pumps must be conducted at either a weekly or monthly basis. the frequency varies by the type of fire pump; diesel and electric; and both have allowances to extend the time between tests based on approved risk analysis. generally, diesel fire pumps must be no flow (churn. How does nfpa 25 address weekly inspections for electric fire pumps?.
Weekly Or Monthly No Flow Churn Tests Of Fire Pumps Annual fire pump test. annual fire pump testing is the most comprehensive testing procedure and involves a complete evaluation of the pump system with a water flow test (nfpa 25, section 8.3.3). a fire pump flow test is performed annually to measure a pump’s water flow and pressure regardless of whether the pump is diesel or electric. While a reduction in output is usually a matter of concern, a.8.3.7.1 of nfpa 25 warns that it should be evaluated in light of meeting the pump’s rated characteristics. to pass an annual flow test, fire pump performance at each flow and pressure point must not be less than 95 percent of the nameplate data. Diesel engine–driven fire pumps weekly electric motor–driven fire pumps monthly per nfpa 25 2011, 8.3.1 per nfpa 25 2011, 8.3.2 a. no flow (churn) fire pump test yes no 1. start the pump automatically by reducing water pressure at control switch? (auto timer may be substituted for the starting procedure) 2. Nfpa 25, the standard for the inspection, testing, and maintenance of water based fire protection systems, specifies that fire pump churn tests must be conducted monthly. compliance with these.
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