Screw pump selection should follow the economic, reasonable and reliable principles. If the design selection of ill-considered, will give future use, management, maintenance trouble, so the selection of a practical production needs, reasonable and reliable screw pump can ensure the smooth production, but also reduce repair costs . First, the speed of the screw pump selection Screw pump flow and speed into a linear relationship, relative to the low-speed screw pump, screw pump with high speed can increase the flow and lift, but the power increased significantly, high speed accelerated the rotor and Stator wear, the screw will inevitably lead to failure, and high-speed screw rotor rotor length is very short, easy to wear, thus shortening the life of the screw pump. Through reducer or stepless speed regulation mechanism to reduce the speed, the exploration speed maintained at a reasonable range of three hundred revolutions per minute, and high-speed operation of the screw pump, the service life can be extended several times. Second, the quality of the screw pump Screw pumps on the market now more types, relatively speaking, imported screw pump design, excellent material, but the higher prices, some services are not in place, high parts prices, long ordering cycle , May affect the normal operation of production. Most of the domestic production of imported products imitation, product quality varies greatly in the choice of domestically produced products, considering its cost-effective time, the choice of low speed, long lead, transmission parts of good quality, long life rating of the product. Third, to ensure that debris does not enter the wet mud sludge mixed with solid impurities will screw the rubber material stator damage, so to ensure that debris does not enter the cavity of the pump is very important, many sewage treatment plant before the pump Installed a grinder, and some grille installation or filter, blocking debris into the screw pump, grill should be promptly salvaged to avoid clogging. Fourth, to avoid broken screw pump Never run in the case of broken material, once occurred, the rubber stator due to dry friction, instantaneous heat generated and burned, so the grinder intact, smooth grille is necessary for the normal operation of the screw pump One of the conditions, therefore, some screw pump is still installed in the pump body break down device, when there is a broken material, due to the self-priming screw pump has the characteristics of the cavity will produce a vacuum, the vacuum device will stop the screw pump Run. Fifth, to maintain a constant outlet pressure Screw pump is a positive displacement rotary pump, when the outlet end is blocked, the pressure will gradually increase, so that the pressure exceeds the predetermined value. At this time the motor load increased dramatically. Transmission machinery related parts load will exceed the design value, severe motor burn occurs, the transmission parts broken. In order to avoid damage to the screw pump, generally installed at the outlet of the screw pump bypass relief valve to stabilize the outlet pressure to maintain the normal operation of the pump.
Lab Syringe Pump
Lab Syringe Pump for microinjection, microfluidics, perfusion, and other lab microinjection applications.
We support 1 syringe or 2 syringes pump. Suitable for the different work requirements.
The syringe pump is suitable for high-pressure and high-precision applications, such as high-performance liquid chromatography.
High precision touch screen laboratory syringe pump
Supporting for injection and extraction four work modes.
ZS100 is an injection pump with high precision, it supports for a variety of work mode.
The 4.3-inch color LCD touch screen can set parameter quickly.
Many instruction light confifirm working condition accurately.
This product supports for multiple syringe to choose, to meet the needs of dif ferent experimental flflow quantity,
high precision control, and has the hard and soft protection agencies and alarm mechanism.
Built-in RS - 485 communication, supporting the Modbus agreements, wide range power input, adapt to
various occasions.
Lab Syringe Pump,Electrospinning Syringe Pump,Automatic Lab Syringe Pump,High Voltage Syringe Pump
Baoding Chuangrui Precision Pump Co., Ltd. , https://www.crprecisionpumps.com