This European Standard was approved by CEN on 2019. CEN members are bound to comply with the CEN/ CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
The fire pump systems in accordance with TS EN 12845 + A1 are designed and manufactured in accordance with the requirements of the TS EN 12845 + A1 (Design, Installation and Maintenance of Fixed Fire Extinguishing Systems and Automatic Sprinkler Systems) standard that is in force.
|Pump Body||Back pull-out design|
|Pump Body Material||GGG25, GGG40 or AISI304|
|Shaft||AISI420 Stainless Steel|
|Sealing||Mechanical seal or soft packing (5 row)|
|Coupling Connection||Spacer coupling|
|Impeller||GGG25, AISI304 or bronze|
|Closed Valve Pressure||125% of the nominal pressure|
|Maximum Load||The pressure when the flow rate increases to 140% should not be less than 70% of the nominal pressure|
|Back Up||In two-pump systems, each pump should ensure predefined flow rate and pressure alone. It can be selected in a manner to cover 50% of each pump's nominal flow rate on the systems with three pumps|
|Suction Line Water Flow Rate||Flow rate is 1.8m/s in positive suction and 1.5 m/s in negative suction|