Edwards nEXT400 User Manual

13.3 WCX water cooler
A wa
ter cooler can be installed to the pump. Refer to Cooling water on page 28 to check
the applicable cooling water supply.
Table 38 WCX water cooler
Water Cooler
Item Number
WCX nEXT water cooling kit B80000815
13.4 BX bakeout band
A BX bakeout band increases the degassing of the pump to enable it to achieve lower
pressures. It can be also used to protect the pump from condensaon of contaminants.
The bakeout bands are available in 110 ‑ 120 V or 220 ‑ 240 V versions.
Note:
Use the ange heater only with CF varian
ts.
Table 39 BX bakeout band
Bakeout Band
Item Number For use with
BX250 (110 V) B58052041 nEXT240
BX250 (240 V) B58052061 nEXT240
BX300 (110 V) B80000814 nEXT300
BX300 (240 V) B80000816 nEXT300
BX450 (110 V) B58052043 nEXT400
BX450 (240 V) B58052063 nEXT400
13.5 TAV vent valve and vent port adaptor
Two solenoid‑operated vent valves are available for system venng. The valves are
24 V d.c., normally open and can be driven by the controller. The solenoid valve is
installed in place of the manual valve or can be installed with an adaptor (supplied with
the valve). Use the valves with applicable NW10 anged port on the vacuum system.
TAV5 is applicable for smaller vacuum systems. TAV6 has a higher conductance and is
applicable for larger vacuum systems (with volume more than 10 litres).
Table 40
TAV vent valve and vent port adaptor
Product
Orice Diameter Item Number
TAV5 vent valve 0.5 mm B58066010
TAV6 vent valve 1.0 mm B58066020
13.6 VRX vent restrictor
Use a VRX installed orice vent restrictor to restrict ow of vent gas into the pump. A
VRX vent restrictor can be installed to the inlet of a TAV5 or TAV6 vent valve or to a
PRX10 purge restrictor. Refer to Table: Vent restrictor orice diameter (with atmospheric
04/2022 - ©Edwards Limited
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B80000880_G - Accessories

Edwards nEXT400 Specifications

General

Brand	Edwards
Model	nEXT400
Category	Water Pump
Language	English