Bürkert 2702 Manuel d'utilisation - Page 4

Parcourez en ligne ou téléchargez le pdf Manuel d'utilisation pour {nom_de_la_catégorie} Bürkert 2702. Bürkert 2702 12 pages. 2/2-way angle-seat control valve

Imprimer la page
Tightening torques of spindle guide
Spindle
Orifice body
(mm)
diameter
(mm)
10
15
20 / 25
32
14
25
32 - 50
22
65
Tab. 2:
Tightening torques of spindle
*) If the valve features a PEEK spindle guide, we recommend replacing it with a
VA spindle guide. They are available from your Bürkert sales office.
8
Type 2702:
→
For control function A (CFA) pressurize the lower control air
connection with compressed air (6 bar): Valve opens.
(For control function B the valve is already open).
Both types:
→
Screw actuator into the valve body. Observe tightening torque
(see "Tab. 3").
→
Turn off the pressure and vent the lines.
Tightening torque of valve body / nipples
Orifice (mm)
15
20
25
32
40
50
65
Tab. 3:
Tightening torque of valve body / nipples
Material of spindle
Tightening
guide
torque (Nm)
PEEK*
6
1.4401 / 1.4404 / 316L
15
25
50
PEEK*
15
1.4401 / 1.4404 / 316L
25
60
1.4401 / 1.4404 / 316L
60
Tightening torque [Nm]
45 ± 3
50 ± 3
60 ± 3
65 ± 3
70 ± 3
70 ±3

INSTALLING THE ACTUATOR

WARNING!
Danger if incorrect lubricants used!
Unsuitable lubricant may contaminate the medium. In oxygen appli-
cations there is a risk of an explosion!
▶ In specific applications, e.g. oxygen or analysis applications, use
appropriately authorised lubricants only.
→
Check the graphite seal and if required, replace it.
→
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, ensure that the valve is in open
position.
Type 2300:
→
Control function A (CFA) and I (CFI)
Without unit control: pressurize the pilot air port
1 with compressed air (5 bar): valve opens.
(For CFB the valve is already open).
With unit control: open the valve according to
the operating instructions for the control unit.

INSTALLATION TOOLS

Installation wrench for packing gland (only for PEEK spindle guide)
Installation wrench
Spindle ∅ 10 mm
Spindle ∅ 14 mm
Tab. 4:
Installation wrench
Modified socket wrench for packing gland and VA spindle
guide (Series production status since April 2012)
Socket wrench
Spindle ∅ 10 mm
Spindle ∅ 10 mm
Spindle ∅ 14 mm
Tab. 5:
Modified socket wrench
Special wrench for rotating the actuator
(only for actuator without hexagon)
Order no.
665 702
Tab. 6:
Special wrench
If you have any queries, please contact your Bürkert sales
office.
Type 2300
Pilot air port
2
1
Order no.
665 700
665 701
Orifice
AF
Order no.
15
19
683 220
20 - 32
21
683 222
25 - 50
21
683 223
9