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.sealandflowmeter.com
Multi-stage centrifugal pump Features 1, easy maintenance: import and export at the same level, the import and export of the same pump can be installed in the pipeline as any position and any direction, installation and maintenance is extremely convenient. 2, no water pollution: the main flow components made of stainless steel stamping, and light weight, clean, hygienic and other characteristics, is the ideal green, environmental protection, energy saving pumps. 3, low operating costs: The main flow components made of stainless steel stamping, smooth flow components, with high efficiency, less loss, low failure rate, long service life parts, the machine has less operation and maintenance costs. 4, motor: motor aluminum alloy die casting, with light weight, small size, good heat dissipation, beautiful appearance. Wide voltage design and unique fan design and wind hood design, with high reliability, long life, high degree of generalization, high efficiency, low noise, good start-up performance, high protection level, high insulation level and so on. Multistage centrifugal pumps often cause wear and tear between the balance disc and the balance plate, between the balance disc hub and the balance sleeve during operation. Worn after repair methods are as follows: 1, balance plate and balance plate wear into a bumpy, scraping plate can be used in color method to cut production, scraping high. Finally, the balance plate and balance plate mounted on the pump with research, so that the surface smooth, knowing that the circumference can be evenly contacted. 2, such as serious wear and tear, but no repair value, should be replaced with new pieces.