Melt pump is a positive displacement conveyor equipment, high-precision gear gap and volume structure design, so that a stable and balanced extrusion possible, in chemical fiber, granulation, plastic film, sheet, sheet, profiles, pipe, wire Cable, wire drawing, composite extrusion and other production lines have been widely used, and achieved good results: 1. To achieve a stable extrusion, extrusion products to improve dimensional accuracy, reduce scrap rate. In the extrusion process, the uneven feeding of materials, barrel and head temperature fluctuations, pulsating speed and other phenomena is difficult to avoid. The use of melt gear pump can eliminate feeding system feeding error, can greatly reduce the upstream process of transmission fluctuations, rapid access to stable working conditions, improve the dimensional accuracy of extruded products, reduce scrap rate. 2. To increase production, reduce energy consumption, low temperature extrusion, extend the life of the machine. Since the extruder is equipped with a polymer melt pump, the decompression function of the extruder is transferred to the gear pump, and the extruder can work under the condition of low pressure and low temperature, the leakage flow is greatly reduced, and the output is increased. Gear pumps create head pressure more effectively than extruders and reduce backpressure on the extruder, allowing the screw to withstand the axial forces and prolonging service life. 3. With linear extrusion characteristics, to facilitate the coordination of downstream equipment. As the gear pump leakage less, the pump capacity and speed of the basic linear relationship between the gear pump speed changes, the flow can know exactly, because it can determine the upstream and downstream equipment and gear pump synchronization work speed, the use of gear pump Entrance and exit of the collection of pressure, temperature and other information to achieve the entire extrusion process online monitoring and feedback control.
Natural Gas Mass Flow Meter
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