Burkert Type 2731 - Manual (Page 16)

7.2.1 installation position general
installation for self-drainage of the body
It is the responsibility of the installer and operator to
ensure self-drainage.
installation for leakage detection
One of the bores (in the actuator base) for monitoring
leakage must be at the lowest point.
7.2.2 installation position 2/2-way valve
• The piston-controlled diaphragm control valve can be installed in
any installation position, preferably with the actuator face up.
To ensure self-drainage:
→
Install body inclined by an angle α = 15° – 35° to the horizontal.
→
Observe an inclination angle of 1° – 5° to the line axis.
Forged body: Mark on the body must point upwards (12 o’clock
position, see “Fig. 11”).
→
One of the bores (in the actuator base) for monitoring leakage
must be at the lowest point.
Angle α: 15 °– 35°
Inclination to the line axis 1° – 5°
Mark
α
Fig. 11: Installation position for self-drainage of the body
7.2.3 preparatory work
→
Clean pipelines (sealing material, swarf, etc.).
→
Support and align pipelines.
devices with vs/va welded body:
NoTe!
damage to the diaphragm or the actuator!
▶ Before welding in the body, remove the actuator.
Remove the actuator from the valve body:
NoTiCe!
damage to the diaphragm or the seat contour!
▶ When removing the actuator, ensure that the valve is in open
position.
16
Installation
english
Type 2730 / 2731 DN 65-100