Maintenance - SPX APV DELTA DF plus 2 Operating Manual

DELTA DFplus2 - UK1 / qxd.12.2004
centering arbor
DFplu2
20h9
28
assembly arbor
13
10.

Maintenance

- The maintenance intervals are different depending on the
application and should be determined by the operator carrying
out temporary checks.
- Replacement of seals, see service instructions.
Use seal kits according to spare parts list.
- For the installation of the upper and lower seat seal
assembly tools are respectively available (see 13).
- Assembly aid:
Centering arbor:
Assembly arbor:
- Required tools:
* plastic tip hammer
* scribing iron (for seal removal)
* 1 x wrench SW10
* 1 x wrench SW13
* 2 x wrench SW17
- Assembly of the valve, see service instructions.
- All seals must be provided with a thin layer of grease.
Recommendation:
APV food-grade grease for EPDM, HNBR and FPM
(0,75 kg /tin - ref.-No. 000 70-01-019/93)
(60 g /tube - ref.-No. 000 70-01-018/93)
or
APV food-grade grease for VMQ (Silicone)
(0,6 kg /tin - ref.-No. 000 70-01-017/93)
(60 g /tube - ref.-No. 000 70-01-016/93)
Use only those greases being suited for the respective
seal material.
! Do not use grease on mineral oil basis for EPDM seals.
! Do not use Silicone-based grease for Silicone seals.
T o install the valve insert in the
valve housing, use the centering arbor
in 4" dimension (ref-No.: 51 - 13 - 725/93)
in 6" dimension (ref-No.: 51 - 13 - 726/93).
The valve seat is positioned during
assembly with the valve yoke by the
assembly arbor.
(The assembly arbor canbe manufactured
by the customer, see illustration).
UK
Double Seat Valve
DELTA DFplus2
Operating Manual: rev. 1