Burkert 6128 Manuel D'utilisation page 6

Identification of the valve connections on the body:
NC
Normally closed
NO
Normally open
for pressure connection (distributor) or
working connection (mixer), for CFT
IN/OUT
Normal output, for CFC or CFD
OUT
Normal output, for CFA or CFB
* see also the description of the circuit functions in the chapter
entitled "7.4. Pneumatic data"
english
20
Valve with flange connection:
To ensure functional reliability, operate the valve with
the coil installed ex works only!
Screw for attaching coil
Coil
Body
Flange plate
→
Loosen the screw which attach the coil and remove the
coil from the body.
english
22
Circuit function (CF)
A
NC OUT
C, D and T
NC in/out NO
B
OUT NO
Connection normally
closed, for CFA
Connection normally open,
for CFB
The valve body must not be twisted by the fastening
screws or by screwing in the connecting nipples too
far!
The bodies with threaded or hose connection have fixing
eyelets for the screw connection from above with M3 and from
below with self-tapping screws BZ 3.9 x ... DIN 7971.
Body with threaded connection:
→
Use PTFE tape as sealing material
→
Screw in the connecting thread (max. 3 Nm)
note!
Malfunction / damage to device when detaching the
coil!
The valve features a pressed-in membrane which may be
damaged when the coil is detached.
• Do not loosen the coil!
Warning!
Danger - escaping medium!
Leaking connections if seals not seated properly, if manifold
uneven or if surface quality of the manifold inadequate.
• Make certain the seals included with delivery are
properly seated in the valve.
• Ensure that the manifold is even.
• Ensure that the surface quality of the manifold is
adequate.
Screws for manifold
Tightening torque:
0,8 Nm
Seal
Manifold
Flange connection
with screws
→
Insert the seal into the valve.
Type 6128, 6608
english
21 21
Flange connection
with clamps
english
23 23