Screw, Than Shwe Vacuum Equipment Co. (Certified), screw

Screw vacuum pumps use two screws, finely balancing correction, supported by bearings mounted in the pump housing, have a certain gap between the screw and the screw, so when the pump is working, no friction between them, smooth operation, low noise, working chamber without oil, therefore, the dry screw pump can pump contains a lot of advantages in addition to a small amount of water vapor and dust, gas applications, ultimate vacuum higher, lower power consumption, energy saving, maintenance-free. It is oil-sealed vacuum pump replacement products. Sanitary screw structure: It is mainly composed of a fixed bushing (pump cylinder) in the pump body and placed in the pump cylinder in its two active screw and driven screw engaging composition. Three screws meshing with each other, in the pump cylinder for each lead is formed into a sealed chamber, causing the seal between the suction port. When the screw pump, as the two driven screw screw symmetrical and active engagement, it acts on the active screw radial forces perfectly balanced, active screw is not subjected to bending loads. Driven screw suffered radial force along its entire length supported by the pump to the cylinder liner, thus screw maintenance, does not require a separate bearing outer end, substantially not subjected to bending loads. In operation, an oil film is formed between the outer circumferential surface of the screw and of the cylinder wall, prevents direct contact between the metal and the screw tooth wear surface is greatly reduced. When stainless steel single screw pump work, the role of both ends of the suction pressure of the liquid screw pump maintenance, so the screw to produce axial thrust. For the pressure is less than 10 kg force / cm2 small pump screw pictures, you can use the thrust bearing. In addition, through the central hole of the screw will be active high-pressure oil introduced into the bottom of each of the screw sleeve, thereby generating an axial thrust in the direction opposite to the lower end of the screw balance thrust. Screw pumps and other positive displacement pump, as the pump outlet when completely closed, the pressure in the pump will rise to cause damage to the pump or the motor overload level of risk. Therefore, in the suction port of the pump, it is necessary to set up a safety valve. Stainless steel single screw pump seal, usually mechanical seal, and may take different forms depending on the level of work pressure. Screw, Than Shwe Vacuum Equipment Co. (Certified), screw by Than Shwe Zibo Vacuum Equipment Co. Than Shwe Zibo Vacuum Equipment Co. (www.zbdrzk.com) Shandong Zibo vacuum pump leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Than Shwe Vacuum Equipment Co. in leadership with the staff warmly welcome all inquiries negotiations to create Than Shwe Vacuum Equipment Co., a better future.