Amarex KRT series - Page 27

5 Installation at Site
27 of 124
Amarex KRT
Table11: Curing times of mortar cartridge
Floor temperature Curing time
[°F] [°C] [min]
23 to 32 -5 to 0 240
32 to 50 0 to +10 45
50 to 68 +10 to +20 20
> 68 > +20 10
5.3.1.2 Connecting the piping
DANGER
Impermissible loads acting on the flange of the base elbow
Danger to life from leakage of hot, toxic, corrosive or flammable fluids!
▷ Do not use the pump as an anchorage point for the piping.
▷ Anchor the pipelines in close proximity to the pump and connect them without
transmitting any stresses or strains.
▷ Observe the permissible flange loads.
▷ Take appropriate measures to compensate thermal expansion of the piping.
NOTE
When the pump set is used for draining low-level building areas, fit a swing check
valve into the discharge line to avoid backflow from the sewer system.
CAUTION
Critical speed
Increased vibrations!
Damage to mechanical seals and bearings!
▷ In the case of longer riser pipes, fit a swing check valve to prevent the pump
from excessively running in reverse after it is switched off.
Choose the position of the swing check valve to allow proper venting.
F
x
F
z
F
y
M
y
M
z
M
x
Fig.11: Permissible flange loads
Table12: Forces [lbs] and moments [ftlbs]
Nominal flange
diameter
Forces [lbs] Moments [lbsft]
F
x
F
y
F
z
∑F M
x
M
y
M
z
∑M
200 1356 1221 1515 2363 2383 1687 1943 3520
250 1684 1526 1888 2950 3263 2310 2677 4803
350 2363 2125 2634 4126 5683 4033 4657 8360
400 2702 2430 3007 4714 7113 5060 5830 10487