Dellmeco DME 15 R Series, Instruction Manual

Page: 28 / 66

28 I DELLMECO I EODD DIAPHRAGM PUMPS
Electro-mechanical Operated Double diaphragm Pumps (DME Series)
– torque data
Series Size and model
Torque value [Nm]
Housing bolts Valve stoppers
P
las
ti
c
PE c
.
DME 15 R.. 8 -
DME 25 R.. 13 -
DME 40 R.. 17 -
DME 50 R.. 22 -
DME 80 R.. 24 -
PTF
E c
o
n
d
.
DME 15 Z.. 7 -
DME 25 Z.. 11 -
DME 40 Z.. 15 -
DME 50 Z.. 19 -
Me
tal
Al
u
,
Ca
s
t
Iro
n
DME 20 A.., DME 20 C.. 8 7*
DME 25 A.., DME 25 C.. 13 7*
DME 40 A.., DME 40 C.. 17 8*
DME 50 A.., DME 50 C.. 22 8*
DME 80 A.. 25 10
AISI
3
1
6
DME 20 S.. 8 7*
DME 25 S.. 13 7*
DME 40 S.. 17 8*
DME 50 S.. 22 8*
DME 80 S.. 40 -
Hygien
ic
AISI
3
1
6
L
DME 25 H.. 10 -
DME 40 H.. 14 -
DME 50 H.. 17 -
DME 65 H.. 22 -
DME 80 H.. 40 -
*- Loctite 243 threadlocker required for valve stoppers assembling
!
CAUTION

Before putting the pump into operation as well as after some hours of pumping, the housing bolts have to
be fixed according to the torque data of the following schedule, as the elements of construction
“settle”.
Fixing all these parts is necessary as well after longer periods of stoppage, at extreme temperature
variations, after transport and dismantling the pump.