Our standard catalog Million Cycle Stainless Steel Circular Vacuum Gate Valves are made in the USA at our headquarters in Hayward, California, and have a 4 - 6 week lead time, which is about 1/4th the time being quoted by other manufacturers right now. So, if you have a demand for gate valves, and can't wait longer than 6 weeks, then place your order today with MDC! You can order directly online through our eCommerce website
here, calling us at 510-265-3500, or emailing our sales team at [email protected]
MDC’s Million Cycle Stainless Steel Circular Vacuum Gate Valves incorporate patented C-Loc® and Uni-Loc™ gate valve locking mechanisms. No contact is made between a valve’s body and the locking mechanism, a feature which markedly decreases vibration and insures smooth valve operation. MDC gate valves require about half the number of moving parts found in comparable competitor valves. This reduction in moving components minimizes wear and particulate generation, which in turn provides valves of superior performance and reliability.
Our valves’ low outgassing characteristics can be attributed to a fusion welded 300 series stainless steel body, welded AM-350 stainless steel nesting bellows as well as small cross-section O-rings and the elimination of blind internal cavities. MDC stainless steel circular gate valves are offered in various sizes ranging from .625" to 12" port diameters. Standard port mounts include: Del-Seal™ CF metal seal flanges, which are recommended for ultra-high vacuum service; ISO Kwik-Flange™ and ISO Large-Flange™ fast make and break elastomer sealed flanges, ideal for high vacuum applications requiring frequent assembly and disassembly; and ANSI ASA elastomer seal port flanges for use in high vacuum applications where ANSI standards are specified. Gate valve actuation is available in both manual and electropneumatic configurations. Custom designed valves are available on request.
In the simplest of terms, vacuum gate valves are devices that regulate the flow of gases, fluids or materials through a structure or aperture by opening, closing or obstructing a port or passageway. Gate valve assemblies consist of three key components: an actuator, a carriage/gate and a valve body. The actuator provides the power to position or transport the valve’s carriage/gate. The actuator is attached to the valve’s body via a rectangular bonnet flange. The gate closes or opens one of the valve’s body ports. The valve body is a vacuum tight chamber that is screwed, flanged or welded into a larger vacuum vessel or system.
MDC’s valves are ideal for vacuum isolation of cryopumps, turbo pumps, ion pumps, and other applications requiring clean, low outgassing valves. Our valves have been used in a wide array of high technology and scientific research processes including, but not limited to: synchrotrons/particle physics, materials research/materials science, life sciences, mass spectrometry, x-ray photoelectron spectroscopy (XPS), electron microscopy, thin film coating (PVD, CVD, PECVD, MOCVD), atomic layer deposition, semiconductor wafer fabrication, EUV lithography, thermal vacuum testing/space simulation, aerospace, astrophysics, nuclear fusion, ion beam etching, 3D printing, medical device manufacturing/pharmaceutical, nanotechnology, solar/photovoltaic cells and panels manufacturing, and microelectronics.
We can't wait to drive your process forward with the industry's best lead times on vacuum gate valves!