Burkert Type 0420 - Manual

Operating Instructions Type 0420
Marking (example):
Body Material
PL
= Polyamide Plastic
Seal Material
NBR
= NBR
FKM = FKM
Circuit Function
G =
4-way
Recorder No.
Voltage / Frequency / Power Consumption
Maximum Pressure
Approvals
The valve is either approved as
General Purpose valve for Hazardous Locations
Class I, Division 1, Group A, B, C, D
Class II, Division 1, Group E, F, G
Class III, Division 1 and 2
Operating Temperature T 4
or
General Purpose valve for Hazardous Locations
Class I, Division 1, Group A, B, C, D
Class II, Division 1, Group E, F, G
Class III, Division 1 and 2
Operating Temperature T 6
or
FM approved as
Nonincendive for Hazardous Locations
Class I, Division 2, Group A, B, C, D
Class II, Division 2, Group F, G
Class III, Division 1 and 2
Operating Temperature T 4A
UL listed for Ordinary locations
CSA approved for Ordinary locations
See label on the valve.
Operating Instructions 0605/08_EU-EN_00893139
Table 1 Seal materials
Fluid Tempera-
tures [°F] Buna "N" (B) FKM (F)
Air Fluid T.
Ambient
+ 14 to + 122
+ 14 to + 122 + 14 to + 122
+ 14 to + 122
Neutral
gas
Fluid T.
Ambient
+ 14 to + 122
+ 14 to + 122 + 14 to + 122
+ 14 to + 122
Design:
4-way solenoid valve, internally piloted, in the de-energized
condition port P connected to port B and port R connected to
port A. With manual override and flow restrictors.
Seal Materials and Fluids handled:
See Table1.
Fluid and Ambient Temperature:
For Hazardous Locations Div. 1 (T6 rated)
Max. Ambient Temperature
104 °F (40 °C)
Max. Fluid Temperature 140 °F (60 °C)
For Hazardous Locations Div. 2 and Ordinary Locations:
See Table1.
Pressure Range:
Minimum pressure differential between inlet and outlet port is
35 PSI.
Maximum inlet pressure see label on valve.
Installation:
Installation position as required. Ensure exhaust outlets for
pilot valve and main valve remain unrestricted but protect
against entry of dust, water and foreign matter. Pipework
should be clean. Do not put any loads on coil unit. Pipework
should be supported and installed to prevent strain on valve
body. Fittings should be sealed with PTFE tape, max. torque
80 in-lbs. Mounting is accomplished by means of two M4 self-
locking threaded brass inserts located on the valve
underside. Maximum thread depth is 6 mm.
Voltage 12V or 24V
UL / UR valid with
class 2 power supply only