Leather Office Chair has strong air permeability, good elasticity, great tension, not easy to deformation, not easy to aging and other advantages. The seat height can be adjusted as required and the 360 rotates as desired. According to the human habit of sedentary, lumbar fit CHAIR back back is naturally relaxed, soft and delicate surface, let sitting is also a kind of enjoyment. . The cushion core uses native materials and new scientific design, making breathable and dense arrangement, the whole cut releases the natural elasticity of native sponge comfortable spread through the whole body. The chair back design is wide and powerful to support the waist and back strength, and feel the quality and comfort of the back of the chair. Using alloy steel pipe integrated seamless bending technology, metal texture armrest design to enhance the quality of the office chair, choose pu material leather cover package protection to increase wear resistance. Strictly selected pu material, soft touch, make it has good toughness, breathability, not only high gloss, easy to take care of more durable. Custom plated steel five-star feet, high load-bearing bow design and positive five-sided geometric scientific support, whether static pressure or mobile, can also firmly grasp, to provide good support and load-bearing performance. The whole chair through formaldehyde detection, not only enjoy a comfortable sitting feeling can more easily rest assured deep breath. Adhering to the simple and modern practical design doctrine, a good chair to understand you can not only complement the business office environment, but also enjoy the comfort of life.
Executive Office Chair,Computer Chair,Business Chair,Back Staff Chair FOSHAN CITY LESHUN RONGHUI FURNITURE CO.LTD , https://www.ronghuifurniture.com
First, the multi-stage pump structure Description Multi-stage pump mainly by the stator, rotor, bearing and shaft seal composed of four parts: 1, multi-stage pump stator mainly by the suction section, the middle section, vomiting section and guide vanes and other components, Bolts will be the various sections of the clamp, the studio. D-type pump generally horizontal inhalation, vertical spit up; for the injection of oil, the pump import and export are up vertically. DG multi-stage pump out, the entrance are up vertically. 2, multi-stage pump rotor mainly by the shaft, impeller, balance disc and shaft sleeve and other components. The axial force is balanced by the balance disc. 3, multi-stage pump bearings mainly by the bearing body, bearing and bearing gland and other components, bearing grease or thin oil lubrication. 4, multi-stage pump shaft seal with a soft packing seal, mainly by the sealing section of the water section and the tail cover, packing, retaining ring and other components. D-pump water seal water from the pump pressure water. DG pump water seal water from the external water supply. 5, multi-stage pump rotary pump directly driven by the prime mover through a flexible coupling. From the original motivation to see the pump, the pump rotates clockwise D, DG-type pump is a horizontal single suction multi-stage centrifugal pump. For the transport of water (containing less than 1% impurity, particle size less than 0.1mm) or other physical and chemical properties similar to water. D-type pump medium temperature less than 80 ℃, suitable for mine drainage, oilfield water, factories and cities to the drainage and other occasions. Oilfield water injection pump according to the corrosive nature of the pump using different materials. DG-type pump medium temperature less than 105 ℃, suitable for a variety of boiler feed water. What is the difference between multi-stage pump and single-stage pump? 1, single-stage pump is only one impeller pump, the highest lift is only 125 meters; 2, multi-stage pump refers to the pump with two or more impellers, the maximum lift can be more than 125 meters; multi-stage pump in the single Pump head needs to be equipped with two-stage motor, the impeller can be increased by increasing the number of four motor, which can improve pump life and reduce unit noise, but the multi-stage pump repair relative single-stage pump is difficult a little. 3, the pump actually needs less than 125 meters head, according to pump room area, pump price (multi-stage pump generally higher than the single-stage pump price), and other factors considering the choice of single-stage pump or multi-stage pump. As technology advances, single-stage impeller pump can improve the pump lift by increasing the pump speed, instead of multi-stage pump, but the price is a little expensive. Second, the multi-stage pump management and maintenance precautions Pumps should be divided into two aspects of electricity and machine, for the machine, mainly to the previous maintenance record transferred out to know. Followed by the electrical aspects, and to understand the power of each pump motor, to his control system have a certain understanding.