Valve
Valve
Vacuum gate valves are essential for controlling the flow of gases and materials in vacuum systems. They consist of an actuator, a carriage/gate, and a valve body. MDC vacuum gate valves are known for their patented locking mechanisms that enhance performance by reducing vibration and wear. These valves are available in various sizes and configurations, including manual and electropneumatic actuation.
The valves are made from 300 series stainless steel with AM-350 stainless steel bellows, designed for high vacuum conditions with a range of 1x10-11 Torr and a leak test sensitivity of 2x10-10 cc/sec of He. They can withstand temperatures up to 250°C with appropriate seals and are tested for leak tightness, allowing installation in any orientation.
MDC gate valves offer options such as mechanical position indicators, air control solenoid valves, and high-temperature gate seals. They can be customized with roughing ports and different flange types for various applications. The design allows for easy maintenance with removable carriage and gate mechanisms.
Port sizes range from 5/8" to 12", each with specific actuator and flange configurations. Options for manual or pneumatic operation are available, compatible with flange types like Del-Seal™ CF and ISO Kwik-Flange™.
Installation guidelines specify vertical or horizontal installation for ports up to 4 inches, while larger ports must be installed vertically. Bakeout procedures require careful handling of air control solenoid valves to prevent overheating. Maintenance involves removing the actuator and poppet mechanism for seal replacement and cleaning.
The document outlines the use of different port connections suitable for specific vacuum environments and temperature ranges. Electropneumatic actuation is recommended for sealing, with torque specifications provided for fastening bolts.
Options for angle valves include mechanical and magnetic position indicators, air control solenoid valves, and high-temperature poppet seals. These options can be added to valve part numbers for customization.
Tables provide dimensions, weights, and pricing for different valve sizes and configurations, along with part numbers and prices for accessories and gasket kits.
The document provides comprehensive specifications and options for MDC Vacuum Products Corporation's inline and angle valves, focusing on high and ultrahigh vacuum series. It includes information on valve construction, materials, operation, and compatibility with other systems.
Designed for ultrahigh vacuum environments, these valves are compatible with temperatures up to 450°C. They feature replaceable OFE copper poppet gaskets and are compatible with Varian and Vacuum Generators systems.
The MLV series is designed for ultrahigh vacuum systems, capable of handling high temperatures up to 450°C, with adjustable leak rates and durable construction materials.
These valves offer quick open/close functionality with positive locks and a Viton® O-ring vacuum seal, constructed from type 304 stainless steel.
MDC Vacuum Products Corporation offers a range of inline and angle valves with customizable options and accessories, suitable for high and ultrahigh vacuum applications. The document provides comprehensive technical details to assist in selecting and configuring the appropriate valve for specific needs.
Catalog excerpts
Gate Valves Introduction164 Options Guide164 Specifications166 >
Open the catalog to page 1
Caution:Check voltage label on solenoidbefore connecting power.Do not separate coil portion (black) from body (aluminum). > MDC 03 Section 2 9/28/03 5:40 PM Page 165 MDC circular gate valves fitted withstandard electropneumatic actuators are equipped with Humphrey 410 series 120VAC 50/60Hz air control solenoid valves.AC/DC power consumption is 4.0 watts.Optional 24VDC or 240VAC solenoid valves are available on request.All solenoid valves are fitted with DIN type connectors that conform to international standards.DIN connectors provide simplicity,convenience and fast,easy electrical installation....
Open the catalog to page 3
Material Body,Carriage & Gate300 Series ssBellowsAM-350 ssAir CylinderTeflon > coated AluminumBolts300 Series ss,silver plated Gaskets BonnetViton > elastomer PistonViton > ή elastomer > Electropneumatic Actuator Air Pressure70 to 100 psigAir Control ValveHerion,double impulse solenoid valveSolenoid Power24VDCPower LossValve remains in position during air or power failurePosition IndicatorsMechanical,vernier adjustable,hinged-roller typemicro switches suitable for 5A,120/240VAC > Temperature Range Bakeability under vacuum in Open-Closed posi-tions,with the following Bonnet-Gate seal com- binationSeriesOpenClosed...
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Roughing Port Not Available GV-625VGV-625M-P .63 I.D. thru 1.338-32 UNCor M4 metric6 Places on 1.062 BC 1.50 1.75 2.00 > Roughing Port Not Available 3.78 3.94 1.18 1.50 .63 I.D. thru 2.00 > ISO NW16 1-1/3" Del-Seal CF See Port Connections for flange details 1.70 1.00 1.25 1.88 Solenoid included (not shown) >
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Optional Roughing Port .50 1.44 Optional Position Indicator 1.91 5.77 1.50 I.D. thru 4.96 2.16 > ISO NW40 2-3/4" Del-Seal CF 2.00 .41 1.97 1.00 3.50 3.90 See Port Connections for flange details 2.54 >
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Optional Roughing Port 2.31 GV-2000MGV-2000M-P 2.00 I.D. thru 3.37 2.00 2.74 .312-24 UNFor M8 metric8 Places on 2.850 BC 1.98 across flats 2.25 > 1.44 Optional Position Indicator > Optional Roughing Port 2.05 5.77 4.96 2.00 I.D. thru 2.95 2.89 .91 > ISO NW50 3-3/8" Del-Seal CF 1.97 1.15 4.50 5.51 See Port Connections for flange details 3.64 >
Open the catalog to page 10
Optional Roughing Port 2.24 GV-2500MGV-2500M-P 2.50 I.D. thru 4.47 2.74 .312-24 UNFor M8 metric8 Places on 3.628 BC 1.98 across flats 2.76 > ٙ Optional Position Indicator > Optional Roughing Port 1.44 See Port Connections for flange details 1.65 2.50 I.D. thru 6.00 .375-16 UNC4 Places on 4.750 BC 3.64 > ANSI ASA2 4-1/2" Del-Seal CF ISO NW63 2.15 >
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Optional Roughing Port See Port Connections for flange details 2.95 1.87 3.00 I.D. thru 7.50 1.25 4.25 .375-16 UNC4 Places on 6.000 BC 2.25 > ANSI ASA3 4-5/8" Del-Seal CF ISO NW80
Open the catalog to page 14
Optional Roughing Port 3.37 GV-4000M-PGV-4000M 4.00 I.D. thru 5.97 .312-24 UNFor M8 metric16 Places on 5.128 BC 4.004.75 2.99 4.25across flats Optional Position Indicator > See Port Connections for flange details > Optional Roughing Port 2.50 4.00 I.D. thru 9.00 .375-16 UNC8 Places on 7.500 BC 1.53 5.50 2.37 > ANSI ASA4 6" Del-Seal CF ISO NW100
Open the catalog to page 16
Optional Roughing Port 3.37 GV-5000MGV-5000M-P 5.00 I.D. thru.312-24 UNFor M8 metric18 Places on 5.969 BC 6.75 4.00 4.75 4.25across flats 3.11 > 6-3/4" Del-Seal CF Optional Position Indicator > Optional Roughing Port 9.05 3.37 7.36 5.00 I.D. thru.375-16 UNC8 Places on 7.500 BC 9.00 2.41 2.94 2.25 10.90 > ANSI ASA4 8.75 See Port Connections for flange details 1.56 7.64 >
Open the catalog to page 18
Optional Roughing Port 3.75 GV-6000MGV-6000M-P 6.00 I.D. thru 7.97 4.00 4.25across flats4.75 .312-24 UNF or M8 metric20 Places on 7.128 BC 3.16 > 8" Del-Seal CF ISO NW160 ANSI ASA6 Optional Position Indicator > Optional Roughing Port See Port Connections for flange details 3.75 6.00 I.D. thru 11.00 .750-10 UNC8 Places on 9.500 BC 2.93 1.56 7.64 >
Open the catalog to page 20
Optional Roughing Port 3.75 GV-8000MGV-8000M-P 8.00 I.D. thru 9.973.33 .312-24 UNF or M8 metric24 Places on 9.128 BC 4.00 > 10" Del-Seal CF ISO NW200 ANSI ASA6 Optional Position Indicator > 9.35 > Optional Roughing Port 1.42 7.37 3.75 8.00 I.D. thru 11.222.72 2.94 3.19 M10 x 1.5012 Places on 10.240 BC 13.69 4.25across flats4.75 11.00 See Port Connections for flange details > Optional Roughing Port 3.75 7.88 I.D. thru 11.002.93 .750-10 UNC8 Places on 9.500 BC 1.62 9.58 >
Open the catalog to page 22
Optional Roughing Port 4.95 GV-10000MGV-10000M-P 10.00 I.D. thru 13.254.00 5.00 13.38 .375-24 UNF30 Places on 12.060 BC 4.25across flats Optional Position Indicator > Optional Roughing Port 1.39 12.64 9.74 4.95 10.00 I.D. thru 13.193.36 3.46 3.19 4.75 M10 x 1.5012 Places on 12.200 BC > ISO NW250 ANSI ASA10 13-1/4" Del-Seal CF 17.20 See Port Connections for flange details > Optional Roughing Port 4.95 10.00 I.D. thru 16.003.99 .750-10 UNC12 Places on 14.250 BC 2.16 11.98 >
Open the catalog to page 24
Optional Roughing Port 5.55 GV-12000MGV-12000M-P 12.00 I.D. thru.375-24 UNF30 Places on 12.810 BC 14.004.00 5.00 16.13 5.55across flats Optional Position Indicator > ٙ 12.89 > Optional Roughing Port 1.39 10.62 5.55 12.00 I.D. thru 3.95 3.76 5.99 16.734.10 M12 x 1.7512 Places on 15.550 BC > ISO NW320 ANSI ASA10 (ASA12) 14" Del-Seal CF 21.87 See Port Connections for flange details > Optional Roughing Port 5.55 11.50 I.D. thru (12.00) 16.00(19.00)4.00 .750-10 UNC 12 Places on 14.250 BC (17.000) 2.52 14.62 >
Open the catalog to page 26
Standard Position Indicator 6.75 Solenoid 2.30 x 9.80 O-ring groove inside dimens. 9.84 > Valves PORTBONNETWEIGHTACTUATORFLANGESEALPOUNDS PARTNUMBER PRICE$ REFERENCE 78508225 8775 9500 > 1 See page 167for detailed bakeout specification QUANTITYMATERIALPER PACK LVHCG-18-SB/LBLVHCG-50-SB/LBLVHCG-1850B > PARTNUMBER PRICE$ 4040 30 VITON1 > 2 VITON2GATE & BONNET SEALGATE & BONNET SEALBODY FLANGE SEAL > 3 FOR USEQUANTITYTHREAD LENGTHWITHPER PACK PARTNUMBER PRICE$ HARDWARE REFERENCE SINGLE CLAW CLAMP KITDOUBLE CLAW CLAMP KIT M8,35mmLONGMESC4M8,35mmLONGMESC4 LVHC-SCKLVHC-DCK > 2020 > 2 Each gasket kit...
Open the catalog to page 29All MDC vacuum products catalogs and technical brochures
ELECTRICAL BREAKS2 Pages
Custom Engineering8 Pages
Chambers14 Pages
Motion & Manipulation100 Pages
Electrical & fluid feedthrough48 Pages
Viewports & Glass Components18 Pages
Vacuum Measurement14 Pages
Roughing components44 Pages
Flanges & Fittings162 Pages