The anti-suckback valve, gas ballast valve and an exhaust filter, oil return circuit are integrated functional elements of the SOGEVAC. The pump is driven by a motor directly integrated into the housing. The rotor (7/3), mounted eccentrically in the pump cylinder (7/6), has three vanes (7/4) which divide the pump chamber into several compartments.The volume of each changes periodically with the rotation of the rotor. As the rotor rotates, the intake portion of the pumping chamber expands and sucks in gas through the intake port (8/A). The gas passes through the dirt trap and the open anti-suckback valve and enters the pump chamber. As the rotor rotates further, the vane separates part of the pump chamber from the intake port. This part of the pump chamber is reduced, and the gas is compressed, then the gas is expelled from the chamber via the exhaust valve (7/7-8). Oil injected into the pump chamber serves to seal, lubricate and cool the pump. The oil entrained with the compressed gas is coarsely trapped in the bottom part of the oil case. Then fine filtering occurs in the integrated exhaust filter elements (8/52). The proportion of oil in the exhaust gas is thus reduced below the visibility threshold (over 99 % entrapment rate). The oil return is controlled by a float valve (8/55). Oil from the oil reservoir (8/67) is injected directly, so as over the end flange bearings via bores in these end flanges in the pump. The oil flow is ensured by the difference of pressures within the pump.
By opening the gas ballast valve (8/62), a dosed quantity or air - so-called "gas ballast" - is admitted into the pump chamber. This gas ballast prevents condensation (up to the vapor tolerance specified in the Technical Data) when pumping condensable gases or vapors. Unintentional venting of the vacuum chamber as well as oil suckback when switching the pump off are prevented by the built-in anti-suckback valve (8/64).When the pump is switched off, the pump chamber is vented with gas from the oil pump via a bore in the exhaust valve. Since a pressure in the inner pump section is then higher than in the intake line, the anti-suckback valve close. The gas flowing into the pump chamber also prevents oil from entering the chamber when the pump is idle. A fan attached to motor generates the air flow needed to cool the pump.
We simply choose to cover the cost for our in-state customers ourselves. Some reasonable compensation will be considered. We will supply you with the measurements and weight of the packaged item. Certain items are secured with tamper-proof labels. In some instances, we will not offer a return on items.Generally, if functionality or esthetics is in question, we will always offer a return option. In some cases, if stated in the item description, this return period might be extended to as much as 60 days. In some instances, such as an item for Parts Only, we may not offer a return. In cases in which we do not offer a return, No return will be stated clearly in the product description. Regarding items listed under the Medical section of Business and Industrial. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. Powered by SixBit's eCommerce Solution. The item "Leybold Sogevac SV16 SV 16 Single Stage Rotary Vane Vacuum Pump" is in sale since Sunday, May 07, 2017. This item is in the category "Business & Industrial\Healthcare, Lab & Life Science\Lab Equipment\Pumps". The seller is "fmills" and is located in Boulder, Colorado. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Taiwan, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia.