Edwards nEXT200200 - WCX Water Cooler; BX Bakeout Band; TAV Vent Valve and Vent Port Adaptor; VRX Vent Restrictor

13.3 WCX water cooler
A w
ater cooler can be installed to the pump. Refer to Cooling water on page 24 to check
the applicable cooling water supply.
Table 35 WCX water cooler
Water Cooler
Item Number
WCX nEXT water cooling kit B80000815
13.4 BX bakeout band
Not applicable to nEXT200200 split-ow pumps.
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 36 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
pressure at the inlet of the vent valve) on page 54 for informaon on the selecon of the
correct VRX vent restrictor. Refer to Table: Vent restrictors on page 93 for the item
numbers of the vent restrictors available.
Table 37 Vent restrictors
Vent restrictor
Orice diameter (mm) Item number
VRX10 0.1 B58066021
VRX20 0.2 B58066022
VRX30 0.3 B58066023
VRX50 0.5 B58066024
VRX70 0.7 B58066025
Page 93
B85200880_D - Accessories