Burkert Type 2012 - Manual (Page 7)

7
Productdescription
Type 2012
5 prODucT DescripTiOn
5.1 general description
The 2/2-way globe control valve Type 2012 is suitable for liquid and
gaseous media. It uses neutral gases or air (control media) to control
the flow of water, alcohol, oil, fuel, hydraulic fluid, saline solution, lye,
organic solvent and steam (flow media).
A particular feature of the globe control valves are screwed in seats
which can be changed if required.
definition of dn
DN designates the nominal width of the seat, not the
nominal width of the line connection.
5.1.1 restrictions
Warning!
risk of injury from water hammer!
A water hammer could crack the lines and device. Due to the risk
of water hammer, valves with a flow direction above seat must
not be used for liquid media.
▶ Consider the type of flow direction and the type of medium for
operation of the device.
6 sTrucTure anD funcTiOn
6.1 structure
The globe control valve consists of a pneumatically actuated piston
actuator and a 2/2-way globe control valve body.
The actuator is manufactured from PA or, for special operating con-
ditions, from PPS. The self-adjusting packing gland ensures a high
degree of tightness. The valve body, made of stainless steel, enables
high flow values.
Transparent cap with
position indicator
Actuator cover
Actuator body
Pilot air ports
Interface actuator /
body with flats
Globe valve body
Port connection
Fig. 1: Globe control valve Type 2012, Structure and description
english