Edwards nEXT1230H turbomolecular high vacuum pumps with an ISO-K 200 inlet flange have a pumping speed of 1350 liters per second (l/s) and an ultimate pressure of 5 x 10 mbar (3.7 x 10 Torr). This nEXT1230H pump has an ISO KF-40 exhaust foreline flange. Optional inlet screens (coarse or fine) are available. The nEXT1230H series turbo pumps require 48 VDC input power at a maximum of 800 Watts (normal operation is typically less than 500 Watts). A permanently attached 0.6 meter long 48 volt power cable and a 0.95 meter long control cable are standard to the pump. nEXT1230H turbo pumps have a compact onboard controller with RS232, RS485, & USB interfaces, five status LED's, and the possibility to control one accessory (either an air cooling fan or solenoid vent valve). All that is needed is a suitable power supply and start/stop logic. For laboratory use we recommend the Edwards EPS 800 power supply and either the Edwards TIC or TAG controllers for operating the pump. We also offer a variety of optional accessories, including the TIC and TAG, forced air and water cooling kits, along with solenoid operated vent valves. This nEXT1230H turbo pump has Edwards part number B8N4A0D00.

Edwards nEXT1230H turbomolecular high vacuum pumps with a Conflat CF 10.0" DN200 CF inlet flange have a pumping speed of 1350 liters per second (l/s) and an ultimate pressure of 5 x 10 mbar (3.7 x 10 Torr). This nEXT1230H pump has an ISO KF-40 exhaust foreline flange. Optional inlet screens (coarse or fine) are available. The nEXT1230H series turbo pumps require 48 VDC input power at a maximum of 800 Watts (normal operation is typically less than 500 Watts). A permanently attached 0.6 meter long 48 volt power cable and a 0.95 meter long control cable are standard to the pump. nEXT1230H turbo pumps have a compact onboard controller with RS232, RS485, & USB interfaces, five status LED's, and the possibility to control one accessory (either an air cooling fan or solenoid vent valve). All that is needed is a suitable power supply and start/stop logic. For laboratory use we recommend the Edwards EPS 800 power supply and either the Edwards TIC or TAG controllers for operating the pump. We also offer a variety of optional accessories, including the TIC and TAG, forced air and water cooling kits, along with solenoid operated vent valves. This nEXT1230H turbo pump has Edwards part number B8N4A0F00.

The TAG is a small, low cost, 24 VDC pumping system controller, suitable for a wide range of vacuum applications. The TAG provides a serial interface for displaying the turbo pump's speed and can power nEXT85D, nEXT240D, nEXT300D, or nEXT400D turbo pumps. The TAG can also control and display vacuum pressure of a single active gauge, and run a fan for forced air cooling of the pump. The TAG controller is compatible with all nEXT turbo pumps and APG, AIM, ASG, or WRG vacuum gauges. The TAG's push button interface allows the user to easily switch between between pump speed or vacuum pressure, shown on the large LED display. This compact 24 VDC controller is ideal for use on benchtops and is also well suited for mobile platforms where space is limited, yet functionality and reliability are essential.

This Edwards TAG Turbo and Active Gauge Controller Kit includes the TAG controller, the matching 200W power supply, and a 2 meter long, US plug 5-15P to C13 Connector, IEC 60320 input power cord for the power supply. The TAG is a small, low cost, 24 VDC pumping system controller, suitable for a wide range of vacuum applications. The TAG provides a serial interface for displaying the turbo pump's speed and can power nEXT85D, nEXT240D, nEXT300D, or nEXT400D turbo pumps. The TAG can also control and display vacuum pressure of a single active gauge, and run a fan for forced air cooling of the pump. The TAG controller is compatible with all nEXT turbo pumps and APG, AIM, ASG, or WRG vacuum gauges. The TAG's push button interface allows the user to easily switch between between pump speed or vacuum pressure, shown on the large LED display. This compact 24 VDC controller is ideal for use on benchtops and is also well suited for mobile platforms where space is limited, yet functionality and reliability are essential.

This Edwards 200W external power supply provides 24 VDC @8A to the TAG turbo and active gauge controller (part number P106255). The external 200W power supply is required since the TAG does not have its own internal power supply. This power supply comes with a permanently attached cable that connects to the TAG controller. The input AC cable for this power supply is sold separately (part number P106129). This 200W Edwards power supply has part number D39592800. This power supply is for:TAG Turbo and Active Gauge Controller

This is an input power cord (mains cable), 115 VAC, 2 meters long, with US plug 5-15P to C13 Connector. It is used on the Edwards TIC turbo instrument controller and TIC relay box. It is also used on the 200W external power supply (part number P106340) which powers the TAG turbo and active gauge controller (the TAG does not have an internal power supply). Replaces Edwards part number B8J200813, A50507000 or D40013120, and is the same as our part number P102990). This power cord is used on:Edwards TIC Turbo Instrument Controller Edwards TIC Relay BoxEdwards TAG Turbo and Active Gauge Controller 200W External Power SupplyEdwards nXDSi Dry Scroll Pumps

This Edwards 200W TIC Turbo Instrument Controller can control and power a nEXT230D, nEXT300D, or nEXT400D turbo pump. This controller has support for up to 3 active vacuum gauges and is Edwards part number D39722000. Edwards TIC Turbo Instrument Controllers are a series of 100W and 200W compact controllers which can be used with any Edwards nEXT turbo pump. The TIC connects to, and controls, the turbo pump through the pump's attached DB15 serial cable. Through the same cable, the TIC is able to supply 24 VDC pump power to the smaller nEXT pumps. TIC controllers feature a large, clear graphics display, easy-to-use control interface via a touch sensitive keypad, and a DB9 RS232/485 interface for control and data monitoring on a remote PC with user supplied software. TIC's require 100-240 VAC input power and can be rack mounted or used on a benchtop. The TIC does not come with an input power cable (we suggest part number P106129). All TIC variants have support for a forced air cooling fan and a solenoid operated vent valve through a Phoenix 4 pin connector (mating end is supplied with the TIC). When connected through the DB25 logic interface to an Edwards Relay Box (part number P106081), the TIC can also control a backing pump, flange heater band, and a 24 VDC backing line valve. TIC controllers are available with or without active gauge control. Supported gauges are APG, AIM, ASG, or WRG series gauges (IGC and Barocel models are not supported).

This Edwards 200W TIC Turbo Instrument Controller can control and power a nEXT230D, nEXT300D, or nEXT400D turbo pump. This controller does not have active gauge support and is Edwards part number D39712000. Edwards TIC Turbo Instrument Controllers are a series of 100W and 200W compact controllers which can be used with any Edwards nEXT turbo pump. The TIC connects to, and controls, the turbo pump through the pump's attached DB15 serial cable. Through the same cable, the TIC is able to supply 24 VDC pump power to the smaller nEXT pumps. TIC controllers feature a large, clear graphics display, easy-to-use control interface via a touch sensitive keypad, and a DB9 RS232/485 interface for control and data monitoring on a remote PC with user supplied software. TIC's require 100-240 VAC input power and can be rack mounted or used on a benchtop. The TIC does not come with an input power cable (we suggest part number P106129). All TIC variants have support for a forced air cooling fan and a solenoid operated vent valve through a Phoenix 4 pin connector (mating end is supplied with the TIC). When connected through the DB25 logic interface to an Edwards Relay Box (part number P106081), the TIC can also control a backing pump, flange heater band, and a 24 VDC backing line valve. TIC controllers are available with or without active gauge control. Supported gauges are APG, AIM, ASG, or WRG series gauges (IGC and Barocel models are not supported).

This Edwards 100W TIC Turbo Instrument Controller can control and power a nEXT85D turbo pump, and is recommended to control nEXT730D, nEXT930D, or nEXT1230H turbo pumps. This controller has support for up to 3 active vacuum gauges and is Edwards part number D39721000. Edwards TIC Turbo Instrument Controllers are a series of 100W and 200W compact controllers which can be used with any Edwards nEXT turbo pump. The TIC connects to, and controls, the turbo pump through the pump's attached DB15 serial cable. Through the same cable, the TIC is able to supply 24 VDC pump power to the smaller nEXT pumps. TIC controllers feature a large, clear graphics display, easy-to-use control interface via a touch sensitive keypad, and a DB9 RS232/485 interface for control and data monitoring on a remote PC with user supplied software. TIC's require 100-240 VAC input power and can be rack mounted or used on a benchtop. The TIC does not come with an input power cable (we suggest part number P106129). All TIC variants have support for a forced air cooling fan and a solenoid operated vent valve through a Phoenix 4 pin connector (mating end is supplied with the TIC). When connected through the DB25 logic interface to an Edwards Relay Box (part number P106081), the TIC can also control a backing pump, flange heater band, and a 24 VDC backing line valve. TIC controllers are available with or without active gauge control. Supported gauges are APG, AIM, ASG, or WRG series gauges (IGC and Barocel models are not supported).

This Edwards 100W TIC Turbo Instrument Controller can control and power a nEXT85D turbo pump, and is recommended to control nEXT730D, nEXT930D, or nEXT1230H turbo pumps. This controller does not have active gauge support and is Edwards part number D39711000. Edwards TIC Turbo Instrument Controllers are a series of 100W and 200W compact controllers which can be used with any Edwards nEXT turbo pump. The TIC connects to, and controls, the turbo pump through the pump's attached DB15 serial cable. Through the same cable, the TIC is able to supply 24 VDC pump power to the smaller nEXT pumps. TIC controllers feature a large, clear graphics display, easy-to-use control interface via a touch sensitive keypad, and a DB9 RS232/485 interface for control and data monitoring on a remote PC with user supplied software. TIC's require 100-240 VAC input power and can be rack mounted or used on a benchtop. The TIC does not come with an input power cable (we suggest part number P106129). All TIC variants have support for a forced air cooling fan and a solenoid operated vent valve through a Phoenix 4 pin connector (mating end is supplied with the TIC). When connected through the DB25 logic interface to an Edwards Relay Box (part number P106081), the TIC can also control a backing pump, flange heater band, and a 24 VDC backing line valve. TIC controllers are available with or without active gauge control. Supported gauges are APG, AIM, ASG, or WRG series gauges (IGC and Barocel models are not supported).

This Edwards 1m long extension power and communication cable connects between any nEXT turbo pump and either the TIC (Turbo Instrument Controller) or TAG (Turbo & Active Gauge Controller). It is used to increase the distance between the pump and controller. This extension cable has D-Sub 15 pin connectors on either end, one male, one female. Edwards nEXT Turbo pumps have a permanently attached 0.3m long power and communication cable. This 1 meter extension cable increases the overall length of the pump-to-controller cable to 1.3 meters. This 1 meter long extension power and communication cable has Edwards part number D39700835. This Edwards extension power and communication cable is compatible with TIC or TAG Controllers and these nEXT pumps:

This Edwards 2m long extension power and communication cable connects between any nEXT turbo pump and either the TIC (Turbo Instrument Controller) or TAG (Turbo & Active Gauge Controller). It is used to increase the distance between the pump and controller.This extension cable has D-Sub 15 pin connectors on either end, one male, one female. Edwards nEXT Turbo pumps have a permanently attached 0.3m long power and communication cable. This 2 meter extension cable increases the overall length of the pump-to-controller cable to 2.3 meters. This 2 meter long extension power and communication cable has Edwards part number D39700836. This Edwards extension power and communication cable is compatible with TIC or TAG Controllers and these nEXT pumps:

This Edwards 5m long extension power and communication cable connects between any nEXT turbo pump and either the TIC (Turbo Instrument Controller) or TAG (Turbo & Active Gauge Controller). It is used to increase the distance between the pump and controller. This extension cable has D-Sub 15 pin connectors on either end, one male, one female. Edwards nEXT Turbo pumps have a permanently attached 0.3m long power and communication cable. This 5 meter extension cable increases the overall length of the pump-to-controller cable to 5.3 meters. This 5 meter long extension power and communication cable has Edwards part number D39700837. This Edwards extension power and communication cable is compatible with TIC or TAG Controllers and these nEXT pumps:

This Edwards logic interface cable interconnects a TIC Turbo Instrument Controller and a TIC Relay box. This male-to-female 25 pin D-Sub cable is 2 meters long. It allows the TIC to control powering the backing pump, an intake flange heater band (bakeout band), and an isolation valve. This logic interface cable has Edwards part number D39700833. This logic interface cable is compatible with:TIC Turbo Instrument Controller (P106075, P105874, P106074, P106128)TIC Relay Box (P106081) The TIC Turbo Instrument Controller and TIC Relay Box are compatible with these turbo pumps:nEXT85DnEXT240DnEXT300DnEXT400DnEXT730DnEXT930DnEXT1230H

This Edwards TIC relay box acts as the control interface between the TIC controller and the mains backing pump, turbo pump flange heater band, and a backing line isolation valve. This relay box does not have any setpoint relays. The relay box can be used on a benchtop or rack mounted alongside the TIC controller. The TIC relay box connects to the the TIC Turbo Instrument Controller with the 25 pin D-Sub, logic interface cable (part number P1012534). The relay box accepts input power from100-240 VAC. The Edwards input (mains) power cable (part number P106129) is sold separately. Maximum rating for powering the backing pump is 240 VAC@10A, and 240 VAC@1A for the heater (bakeout) band. The backing pump and heater band connections are individually fused. Note that the backing pump and heater band must be rated for the same voltage as the input voltage supplied to the relay box. The isolation valve control has a maximum rating of 24 VDC@0.5A and is energised whenever the backing pump is running. This Edwards relay box has part number D39711805.

This Edwards EPS 800 is an 800 Watt power supply providing 48 VDC output at a maximum of 17.1 Amps and is designed to power nEXT series turbo pump models nEXT730D, nEXT930D, and nEXT1230H. It supplies 48 VDC clean fused power from a 100-240 VAC input source. The EPS 800 can be fitted to the pump or used as a benchtop unit. To mount the EPS 800 to the side of the turbo pump, an adaptor mounting kit is required (part number P1012528). When the EPS 800 power supply is mounted directly to the pump, the pump's 0.6 meter long permanently attached power cable is used to directly connect the pump to the EPS 800 power supply. A pump-to-power supply extension cable is not needed in this case.

This is an IVP power cord (mains cable), 115 VAC, 2.5m long, special for the Edwards EPS 800 power supply. It has a 4 pin screw lock plug which connects to the Edwards EPS 800 power supply on one end, and a US plug 5-15P on the other. This IVP power cord is for:Edwards EPS 800 power supply

This is an Edwards power cord (mains cable), 115 VAC, 2.5m long, special for the EPS 800 power supply. It has a 4 pin screw lock plug which connects to the EPS 800 power supply on one end, and a US plug 5-15P on the other. This Edwards 2.5 meter long input power cord has part number B8J200830. This OEM power cord is for:Edwards EPS 800 power supply

This Edwards 3m long, 48 VDC power supply extension cable extends the length of the power cable between a nEXT730D, nEXT930D, or nEXT1230H turbo pump and the EPS 800 power supply. This 3 meter cable is typically used when the power supply is used on a benchtop, remote from the pump. A 5 meter long extension power supply cable is also available (part number P1012349). This 3 meter long power supply cable has 3 pin Hastings type connectors on either end, and has Edwards part number B8J200824. Note that when the EPS 800 power supply is mounted directly to the pump (using mounting kit part number P1012528), the pump's 0.6 meter long permanently attached power cable is used to directly connect the pump to the EPS 800 power supply. A pump-to-power supply extension cable is not needed in this case.

This Edwards 5m long, 48 VDC power supply extension cable extends the length of the power cable between a nEXT730D, nEXT930D, or nEXT1230H turbo pump and the EPS 800 power supply. This 5 meter extension cable is typically used when the power supply is used on a benchtop, remote from the pump. A 3 meter long extension power supply cable is also available (part number P1012527). This 5 meter long extension power supply cable has 3 pin Hastings type connectors on either end, and has Edwards part number B8J200825. Note that when the EPS 800 power supply is mounted directly to the pump (using mounting kit part number P1012528), the pump's 0.6 meter long permanently attached power cable is used to directly connect the pump to the EPS 800 power supply. A pump-to-power supply extension cable is not needed in this case.

This Edwards adaptive mounting kit is required for the EPS 800 power supply to be mounted to the side of nEXT730D, nEXT930D, or nEXT1230H turbo pumps. Mounting hardware is included. The radial air cooling unit for these turbo pumps (730D and 930D pumps, part number P1012350) can be used in combination with this mounting kit. This mounting kit has edwards part number B8J200832. When the EPS 800 power supply is mounted directly to the pump with this mounting kit, the pump's 0.6 meter long permanently attached power cable is used to connect the pump directly to the power supply. A pump-to-power supply extension cable is not needed. This mounting kit can be used on these pumps:

This Edwards fine screened centering ring (1.1 mm mesh) is used to filter the vacuum flow and keep objects from being sucked into the nEXT930D or nEXT1230H turbo pump. This screen has a flange size of ISO-K 200. Depending on the gas used, some pump speed reduction will occur when using this screen. This fine screen centering ring has Edwards part number B8J200808. This screen fits:nEXT930D with ISO-K 200 inlet, Edwards pump part number: B8K200D00nEXT1230H with ISO-K 200 inlet, Edwards pump part number: B8N4A0D00

This Edwards fine screened centering ring (1.1 mm mesh) is used to filter the vacuum flow and keep objects from being sucked into the nEXT930D or nEXT1230H turbo pump. This screen has a flange size of CF 10.0 Inch. Depending on the gas used, some pump speed reduction will occur when using this screen. This fine screen centering ring has Edwards part number B8J200810. This screen fits:nEXT930D with CF 10.0 inch (DN 200 CF) inlet, Edwards pump part number: B8K200F00nEXT1230H with CF 10.0 inch (DN 200 CF) inlet, Edwards pump part number: B8N4A0F00

This Edwards coarse screened centering ring (2.5 mm mesh) is used to filter the vacuum flow and keep objects from being sucked into the nEXT930D or nEXT1230H turbo pump. This screen has a flange size of ISO-K 200. Depending on the gas used, some pump speed reduction will occur when using this screen. This coarse screen centering ring has Edwards part number B8J200807. This screen fits:nEXT930D with ISO-K 200 inlet, Edwards pump part number: B8K200D00nEXT1230H with ISO-K 200 inlet, Edwards pump part number: B8N4A0D00

This Edwards coarse screened centering ring (2.5 mm mesh) is used to filter the vacuum flow and keep objects from being sucked into the nEXT930D or nEXT1230H turbo pump. This screen has a flange size of CF 10.0 Inch. Depending on the gas used, some pump speed reduction will occur when using this screen. This coarse screen centering ring has Edwards part number B8J200809. This screen fits:nEXT930D with CF 10.0 inch (DN 200 CF) inlet, Edwards pump part number: B8K200F00nEXT1230H with CF 10.0 inch (DN 200 CF) inlet, Edwards pump part number: B8N4A0F00

This is an Edwards bearing kit for nEXT1230H turbo pumps. The bearing can be serviced on-site by any service engineer trained by Edwards. Replacement of the bearing requires the Edwards bearing tool kit (part number P1012545). This bearing kit for nEXT1230H pumps includes:Grooved ball bearingO-Ring, FKMGrease Syringe with 0.4 ml LVO 821 Grease Follow the service interval specified in the pump's manual and the installation instructions in the service manual. This Edwards bearing kit has part number B8M200827. This bearing kit fits:Fits: nEXT1230H turbo pumps

This is an Edwards bearing replacement tool kit for nEXT1230H turbo pumps. This tool kit is required to remove and replace the bearing at the base of the pump (bearing part number P1012544). The bearing can be serviced on-site by any service engineer trained by Edwards. Follow the service interval specified in the pump's manual and the installation instructions in the service manual. This Edwards bearing tool kit has part number B8M200845. This bearing tool kit is used on:nEXT1230H turbo pumps

This Edwards radial air cooling dual fan unit fits the nEXT1230H turbo pump and provides air flow perpendicular to the pump. The air cooling facility is powered via the pump's auxilliary connector and will always run when the pump is on. This radial air cooling unit can be used in combination with the EPS 800 power supply mounted to the pump's side (mounting kit part number P1012528 is required). The power supply mounting kit is not required when the power supply is used remotely from the pump. This Edwards radial air cooling unit includes mounting screws and has part number B8J200801. This dual fan radial air cooling kit can be used on these pumps: nEXT1230H

This Edwards Accessory Y Connector attaches to the accessory port on a nEXT85D, nEXT730D, nEXT930D, and nEXT1230H turbo pump and allows two accessories to be connected simultaneously. Both devices are switched parallelly (i.e. de-energized active / in-active). The pump's accessories interface is instantly ready for operation with the connected device (energized with pump switched on). Secondary devices, such as air cooling units, venting or purge valves, and relays can be directly energized and activated via the accessory connection. Note that this Y connector cannot be used on nEXT 240D, nEXT300D, or nEXT400D pumps which have a 3 pin Phoenix connector socket instead of a 4 pin accessory port. This Y Connector has Edwards part number B8G200837.

This Edwards accessory extension cable attaches to the accessory port, or the accessory Y connector (part number P1012518) on a nEXT85D, nEXT730D, nEXT930D, or nEXT1230H turbo pumps. It extends the distance of the accessory to the pump by 0.2 meters. The cable has one straight female connector, and one right angled male connector for installation where space is limited. Devices, such as air cooling units, venting or purge valves, and relays can be directly energized and activated via the accessory connection. Note that this Y connector cannot be used on nEXT 240D, nEXT300D, or nEXT400D pumps which have a 3 pin Phoenix connector socket. This accessory extension cable has Edwards part number B8G200836.

This Edwards accessory extension cable attaches on one end of a nEXT85D, nEXT730D, nEXT930D, or nEXT1230H turbo pump's accessory port, or the accessory Y connector (part number P1012518). The other end of the cable is unterminated with bare wires. This cable extends the distance of the accessory to the pump by 1.5 meters and enables the use of accessories that are not prewired with a mating accessory plug. Devices, such as air cooling units, venting or purge valves, and relays can be directly energized and activated via the accessory connection. Note that this Y connector cannot be used on nEXT 240D, nEXT300D, or nEXT400D pumps which have a 3 pin Phoenix connector socket instead of a 4 pin accessory port. This accessory extension cable (male accessory connector to bare wire) has Edwards part number B8G200839.

This Edwards TAV5 venting valve can be used on the nEXT85D, nEXT730D, nEXT930D, and nEXT1230H turbo pumps. This is a normally open (NO) valve and operates at 24 VDC. This TAV5 solenoid valve comes with a 0.3 meter long power cable, terminated with an accessory connector for connection to the pump's accessory port, and has a G 1/8" (BSPP) fitting for connection into the pump's vent port. This valve is configured to be driven by the pump's onboard controller. This normally open valve can be used as a power failure venting valve. When a power failure occurs, this valve closes and vents the pump and the forevacuum line and thus keeps oil vapor from diffusing back from the forevacuum line. For use on nEXT 240D, nEXT300D, or nEXT400D pumps which have a 3 pin Phoenix connector socket instead of a 4 pin accessory port, use TAV5 valve part number P105358.

This Edwards TAV5 venting valve can be used on the nEXT85D, nEXT730D, nEXT930D, and nEXT1230H turbo pumps. This is a normally closed (NC) valve and operates at 24 VDC. This TAV5 solenoid valve comes with a 0.3 meter long power cable, terminated with an accessory connector for connection to the pump's accessory port, and has a G 1/8" (BSPP) fitting for connection into the pump's vent port. This valve is configured to be driven by the pump's onboard controller. This valve cannot be used on nEXT 240D, nEXT300D, or nEXT400D pumps which have a 3 pin Phoenix connector socket instead of a 4 pin accessory port. TAV5 vent valves have an 0.5mm diameter orifice and are suitable for venting small vacuum systems of

This Edwards TAV6 venting valve can be installed in any nEXT85D, 240D, 300D, 400D, 730D, 930D, or 1230H series turbo pump. This valve operates at 24 VDC, and comes with a 3 meter long power cable with unterminated (bare wire) end, and has a BSP 1/8" fitting for connection into the pump's vent port. This valve can be powered by the pump's accessory port (nEXT85D, nEXT730D, nEXT930D, or nEXT1230H) or the 3 pin Phoenix connector socket on nEXT240D, nEXT300D, or nEXT400D pumps (the mating phoenix plug is supplied with the pump). This valve can also be directly wired to a TIC Controller, or a separate 24 VDC power supply. For use with a nEXT85D, nEXT730D, nEXT930D, or nEXT1230H turbo pump, the accessory extension cable is required (part number P1012520), which has an accessory connector on one end and is unterminated on the other. This normally open valve can be used as a power failure venting valve. When a power failure occurs, this valve closes and vents the pump and the forevacuum line and thus keeps oil vapor from diffusing back from the forevacuum line. .

This Edwards vent or purge port adapter is used to convert the G 1/8 inch (BSPP) female vent or purge port on any nEXT turbo pump to a KF10 NW10 flange. An alternative vent valve to the TAV5 or TAV6 valve, or a vent or purge pipeline may then be fitted to this flange. This vent port adapter is supplied with a flow restrictor (when used on the vent port), and an O-ring to seal the adapter to the pump. When used in the purge port, use the PRX10 purge restrictor (part number P1012056) to limit the purge gas flow rate. This adapter has Edwards part number B58066011. This Edwards vent port adapter is suitable for use on these turbo pumps:nEXT85DnEXT240DnEXT300D

This Edwards purge gas restrictor sets the flow rate of dry purge gas through the purge port on any nEXT turbo pump. An inert purge gas is used to protect the bearing and motor from corrosion. In order to use this purge restrictor, the vent port adapter (part number P106356) must be used to adapt the G 1/8" (BSPP) purge port to a KF10 NW10 flange. The PRX10 purge restrictor is a special KF10 centering ring with a filter and restrictor built in. This purge restrictor, as supplied, is adjusted to restrict the flow rate of dry nitrogen at a supply pressure of 25 sccm. The supply pressure can be increased to increase the flow rate. Please see the accessories download for additional information about calibrating the purge restrictor. This Edwards PRX10 purge restrictor has part number B58065001.