MDC Vacuum Products, LLC

United States

Very Low Magnetic Permeability, 1.005 (304 = 1.3, 316L = 1.1)Rugged Corrosion Resistance in Harsh EnvironmentsComplies with ISO 3669Excellent Purity and HomogeneityUHV Rated to 1 x 10-13 Torr (mbar)Low Outgassing Rates, < 1E-13 atm.ccsec per Square Centimeter of Vacuum Exposed SurfaceWide Temperature Range from LN2 Temperatures to 450CRotatable and Non-rotatable Geometries AvailableMetric Tapped or ClearanceThrough Bolt HolesOFE Copper or Optional Viton Elastomer Gaskets

Very Low Magnetic Permeability, 1.005 (304 = 1.3, 316L = 1.1)Rugged Corrosion Resistance in Harsh EnvironmentsComplies with ISO 3669Excellent Purity and HomogeneityUHV Rated to 1 x 10-13 Torr (mbar)Low Outgassing Rates, < 1E-13 atm.ccsec per Square Centimeter of Vacuum Exposed SurfaceWide Temperature Range from LN2 Temperatures to 450CRotatable and Non-rotatable Geometries AvailableMetric Tapped or ClearanceThrough Bolt HolesOFE Copper or Optional Viton Elastomer Gaskets

DCs new SafeView viewport safety covers feature a protective polycarbonate shield (originally developed for fighter planes), and come with or without an ultra bright LED light ring for quick and easy illumination of your vacuum chamber. SafeView safety covers with the LED light ring option provide maximum lighting directly into your chamber while maintaining maximum viewing area. The perfect accessory to your SafeView cover is our mini-flange LED flashlight with mount which can be easily fitted to 1.33 (DN16) Del-Seal CF flanges. For ultimate vacuum system protection, use SafeView covers in conjunction with MDCs top-of-the-line pressure burst disks.

UHV Compatible all metal constructionISO 4126-2 CompliantPressure relief range 5 to 7 PSIGLeak tight to 2 x10-10 std. ccsec of Helium316 Stainless steel body and disk membraneBakeable to 450CCompact design with no moving partsOptional Gas Recovery Port on ATM SideCalculated Flow rates-107 SCFM on 1.33 Flg.Assy.-435 SCFM on 2.75 Flg.Assy.MDC is pleased to introduce the new Low Pressure (LP) BDA-series burst disks for pressure relief below atmospheric pressure. Designed for use in UHV applications, the LP burst disks feature all metal stainless steel construction. Suitable for overpressure protection of systems with optional gas recovery.

VPS Series viewport shutters provide quick and efficient shielding for all standard viewports. These shutters are ideally suited for service in high and ultrahigh vacuum coating applications. These swing type pivoting shutters feature a double-sided sealing design and are designed to mount between a port flange and the viewport. The shape of each shutter takes advantage of the maximum aperture of the inside of a standard port tube. The actual amount of shutter swing is dependent on the mating chamber's tube port diameter. The table below gives the maximum swing angle for each shutter when mounted on a standard Del-Seal flanged half nipple. To provide maximum shielding of viewports each shutter body has a step machined to match the shape and contour of the shutter's flapper plate. Actuation of the shutter is provided through an MDC bellows sealed rotary drive. Improved design features include all stainless steel body allowing for bakeout up to 230C. A positive click-stop action has also been added to the rotary driver that allows for partial opening of the shutter's flapper plate between the fully opened and fully closed positions.

Very Low Magnetic Permeability, 1.005 (304 = 1.3, 316L = 1.1)Rugged Corrosion Resistance in Harsh EnvironmentsComplies with ISO 3669Excellent Purity and HomogeneityUHV Rated to 1 x 10-13 Torr (mbar)Low Outgassing Rates, < 1E-13 atm.ccsec per Square Centimeter of Vacuum Exposed SurfaceWide Temperature Range from LN2 Temperatures to 450CRotatable and Non-rotatable Geometries AvailableMetric Tapped or ClearanceThrough Bolt HolesOFE Copper or Optional Viton Elastomer Gaskets

Glass viewports are now available with anti-reflective coating as a standard option. They are available from stock in flange sizes 1.33, 2.75 and 4.50 OD Del Seals. Anti-reflective coatings increase the transmissive characteristics of the optic by almost completely removing any reflective losses from both surfaces. Three standard AR coatings are available at specific wavelengths 780nm and 1064nm and also with a broadband coating at 780-1064nm.

MDC's pop-off bushing is designed as low cost pressure safety device to protect vacuum systems against over-pressurization during back-fill or from an accidental increase in pressure due to a system malfunction. The Pop-off pressure relief features stainless steel constructed body, spring and stem with Viton seat. They are designed for use in HV applications.

Very Low Magnetic Permeability, 1.005 (304 = 1.3, 316L = 1.1)Rugged Corrosion Resistance in Harsh EnvironmentsComplies with ISO 3669Excellent Purity and HomogeneityUHV Rated to 1 x 10-13 Torr (mbar)Low Outgassing Rates, < 1E-13 atm.ccsec per Square Centimeter of Vacuum Exposed SurfaceWide Temperature Range from LN2 Temperatures to 450CRotatable and Non-rotatable Geometries AvailableMetric Tapped or ClearanceThrough Bolt HolesOFE Copper or Optional Viton Elastomer Gaskets

Weld neck, 4-inch O.D.Pyrex 7740 borosilicate optical glass4-inch diameter nominal viewing areaType 304 stainless steel mountingViton O-ring sealReplaceable glassDescriptionEconomical visual quality viewport used on high vacuum chambers. Weldable configuration allows installation on a custom built stainless steel chamber. The replaceable viewport glass is captured between two elastomer O-rings. The viewport can be easily disassembled by removing four screws from the retainer ring.