Knife edge seals are excellent, and the valve is operating smoothly - Apart from normal cleaning and the bellows repair, this unit is 100% guaranteed to arrive in good working order. Thermionics model PFB-TLG-4000-H vacuum gate valve. Flange size: 6 inch CF / DN100CF. All stainless steel valve body with some aluminum hardware on top. The item "Thermionics PFB-TLG-4000-H Manual Vacuum Gate Valve // 6 CF / DN100CF / VAT MDC" is in sale since Sunday, September 19, 2021. This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Vacuum Pumps\Other Vacuum Pumps". The seller is "cdinicolo88" and is located in Gainesville, Florida. This item can be shipped worldwide.