Burkert 2301 Element Manuel D'instructions page 9

3.4 Installing actuator on valve body
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If required, replace graphite seal.
WARNING!
Unsuitable lubricant may contaminate the medium.
In oxygen applications there is a risk of explosion.
▶ Only use approved lubricants for specific applications, such as oxygen or
analytical applications.
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Grease nipple thread before re-installing the actuator (e.g. with Klüber
paste UH1 96-402 from Klüber).
NOTE!
Damage to the seat seal or the seat contour!
▶ When installing the actuator, the valve must be in the open position.
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For control function A:
Without control: Pressurize control air connection
1 (Type 2301) or lower control air connection (Type
2712) with compressed air (5 bar) – valve opens.
With control: Open valve according to the operating
instructions for the control.
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Screw actuator into the valve body. Observe tightening torque
(see "Tab. 4").
DN
10/15
20
25
32
40
Tab. 4:
2
1
Control air connection
Torque [Nm]
45 ±3
50 ±3
60 ±3
65 ±3
Tightening torques of valve body / nipples
english
DN Torque [Nm]
50 70 ±3
65 100 ±3
80 120 ±5
100 150 ±5
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