Welch W Series 7 Vacuum Pump. This pump works very well and its being price to move. If you need a vacuum pump for mobile or bench top shop use, this pump will work great for you. This pump was used mildly in our shop after being rebuilt as the tag says. It has around 8 hours on the rebuild, which is almost nothing in the life cycle of a rotary vane pump.The item "Welch W Series 7 model 8917Z-01 Electric Vacuum Rotary Vane MotorIzed Pump" is in sale since Tuesday, October 8, 2019. This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Vacuum Pumps\Other Vacuum Pumps". The seller is "krucialproducts" and is located in Hayward, California. This item can be shipped worldwide.