Burkert Type 2002 - Manual (Page 12)

12
TechnicalData
6.2.4. incoming flow above seat
The valve is closed by spring force (control function A, CFA) with
the medium flow. As the medium pressure is over the swivel plate, it
supports the closing process of the valve and also contributes to the
sealing of the valve seat.
The valve is opened by the control pressure.
Warning!
risk of injury from water hammer.
A water hammer could crack the lines and device.
• Use valves with flow inlet above seat for gaseous media and
steam only.
To ensure complete opening, the minimum control pressure
must be used!
Follow instructions for use in the Ex area! See chapter “3.1”.
Fig. 5: Incoming flow above seat (closing with medium)
7. technical Data
7.1. conformity
The angle seat valve type 2000 / globe valve type 2002 conforms
with the EC Directives according to the EC Declaration of Conformity.
7.2. standards
The applied standards, which verify conformity with the EC Direc-
tives, can be found on the EC-Type Examination Certificate and / or
the EC Declaration of Conformity.
7.3. approvals
The product is authorized for use in Zone 1 and 21 according to the
ATEX directive 94/9/EC of category 2 G/D.
Follow instructions for use in the Ex area! See chapter “3.1”.
7.4. 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“ : variant Type
Control pressure
Control function
Identification number
Direction of flow Orifice
Seal material
Body material
Nominal pressure Connection type
Fig. 6: Example of the type label
english
Type 2000/2002