Zhejiang Sealand Technology Co., Ltd. is a trustworthy manufacturer of Natural Gas Mass Flow Meter, Natural Gas Mass Flowmeter, Natural Gas Coriolis Meter, Natural Gas Coriolis Mass Flow Meter, ATEX, IECEx & CE approved.
First, Sealand meter is certified by Zhejiang Institute of Metrology. To get such
certificate, Sealand has to send all models to Zhejiang Institute of Metrology
and all models are tested in their calibration lab. The lab is an ISO/IEC
17025:2005 standard lab approved by CNAS (China National Accreditation
Service for Conformity Assessment). CNAS is a member of ILAC (International
Laboratory Accreditation Cooperation).
Second, Sealand has its own calibration lab, equipped with METTLER
TOLEDO scales with accuracy 0.014% and the device extended uncertainty is
0.05%. The lab is also approved by Zhejiang Institute of Metrology. This
certificate will stay valid only for one year, Zhejiang Institute of Metrology will
send their professor to Sealand every year to check and make sure that the lab
is qualified still and then issue new certificate. During the production, each
meter will be calibrated in this lab for 3 times, each time at 5 different flow rate.
Finally, Sealand also gets ISO, CE, SIL, ATEX & IECEx. Sealand is the only
Chinese brand who gets ATEX & IECEx and it is from TUV SUD ( the most
authoritative institute for ATEX).
Natural Gas Mass Flow Meter, Natural Gas Mass Flowmeter, Natural Gas Coriolis Meter, Natural Gas Coriolis Mass Flow Meter Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeters.com
Fire pump maintenance and repair
[Asia Fluid Network News] The use of each device is inseparable from the maintenance and repair, in fact, equipment, like humans, after work requires a certain degree of accomplishment and protection. For example, fire pump maintenance needs to be done: the fire pump pump various components and parts of the inspection, especially the opening of each valve, but also to ensure that the engine system to work properly. So fire pump maintenance and repair which specifically contains it? Fire pump maintenance and repair 1, fire pump maintenance (1) check the pump room, cooling ventilation, shutters, to ensure that the pump room has good cooling conditions. (2) Check the fire pump system to ensure that the normal components of the pump. (3) Check the open state of the valve to ensure that the valves are in normal working condition. (4) to ensure that water can work properly. (5) to ensure that the power part of the connection with the pump firmly. (6) to ensure that the various components of the controller to work properly. (7) Make sure that the diesel engine system and its components are working properly. 2, Maintenance (1) Check the pump house, cooling ventilation and shutters every week to ensure that the pump room has good cooling conditions. The general electric pump room is not less than 4 ℃ and the diesel fire pump room is not less than 2l ℃. (2) Check the fire pump system weekly, requiring the pump set intact. (3) Check the electrical control section daily and require the control section to be in good condition. (4) Check the seal of the pump group on a daily basis, no more than one drop per second before the horizontally installed fire pump is put into operation. (5) weekly operation of the pump, observe the pump seal is solid, the pump body is overheated. (6) When running the pump every week, observe whether the maximum flow rate of the pump flowmeter is 150% of the rated flow rate. The above is a description of some methods of fire pump maintenance and repair, but the daily fire pump maintenance and maintenance of content often more than these elements, which requires the user to do more according to the actual situation of accumulation and research. People often say that the posterity of the former people planted shade, and in many cases, if there is a better foundation for the research and improvement of certain things, there will be better results.