Burkert Type 2000 - Manual (Page 7)

7
Technical data
6.5. Type label
Flow 1 2
2000 A 50,0 NBR RG
Made in Germany
00182076 W1X LU
G 2 P med 16 bar
Pilot 1,6 - 10 bar
R
"R": Model Type
Control pressure
Control function
Identification number
Direction of flow Orifice
Sealing material
Body material
Nominal pressure Connection type
6.6. application conditions
Actuator
size [mm]
Actuator
material
Temperature rang
Medium
(with PTFE seal)
Ambient temper-
ature 1)
40 – 63 PA -10 to see below -10 to see below
80 – 125 PA -10 to +180°C -10 to +60°C
40 – 80 PPS -10 to +180°C +5 to +140°C
125 PPS -10 to +180°C +5 to +90°C 2)
1)
Including the pilot valve, the max. ambient temperature is +55°C.
2)
Briefly up to a maximum of 140°C.
Medium tem-
perature [°C]
Ambient
temperature
[°C]
100 120 140 160 180 200
70
60
50
40
30
20
∅ 63 ∅ 50
∅ 40
Observe the information on the Ex area in section “4”!
6.6.1. Pressure ranges
maximum pilot pressure of type 2000:
Actuator
material
Actuator size [mm]
Max. pilot pressure
[bar]
PA 40 - 80 10
125 7
PPS 40 - 80 10
125 7
minimum pilot pressure: flow below the seat
(medium flow against the closing direction of the valve)
Required minimum pilot pressure P
min
with control function A:
Actuator size [mm] 40 50 63 80 100 125
p
min
[bar] 4.0 3.9 4.5 5.0 4.4 3.2
The required minimum pilot pressure P
min
with control function B and I
(flow below the seat) is dependent on the pressure of the medium 3) .
minimum pilot pressure: flow above the seat
(medium flow with the closing direction of the valve)
The required minimum pilot pressure P
min
with control function A
(flow above the seat) is dependent on the pressure of the medium 3) .
3)
The pressure diagrams are in the operating
instructions on the Internet:
www.burkert.com
english
Type 2000