Hale FoamLogix 6.5 - Manual (Page 22)

❑ Introduction
22 FoamLogix 3.3 / 5.0 / 6.5 Installer / Operations Manual
p/n: 029-0021-68-0
The MDT II also provides an electrical interlock for the low tank level sen-
sors and concentrate injection rate. The MDT II is not suitable for top mount
operator panel installations and some side operator panels due to gravity
feed requirements of foam concentrate to the foam pump.
Manual Single Tank (MST)
Single tank foam systems can be configured with a Manual Single Tank
(MST) selector, which provides a flush function connection to the foam sys-
tem electronic controls.
2.6 LOW PRESSURE STRAINER
A low pressure foam concentrate strainer is mounted at the inlet of the foam
pump. The strainer protects the pump from debris that might accumulate in
the foam concentrate tank. The strainer and valve assembly has a compos-
ite nonmetallic housing with stainless steel mesh strainer element and
includes a service shut-off valve and mounting bracket.
The assembly uses a 1-1/4” (32mm) NPT thread and is supplied with fittings
for connection of either 1-1/4” (32mm) ID, 1” (25mm) ID or 3/4” (19mm) ID
foam concentrate suction hose. The in-line strainer and valve assembly is
suitable for use with both Class “A” and Class “B” foam concentrates and is
designed for installations where the strainer is mounted in the foam pump
suction line.
The strainer and valve are low pressure devices and are designed for instal-
lations where the strainer IS NOT subject to HIGH pressure flushing water.
Hale FS Series Strainers
Hale FS series strainers (FS15 and FS25) are panel mounted with a 500
PSIG (34 BAR) pressure rating, suitable for use where flushing water pres-
sure must pass through the strainer.
The FS15 strainer uses 3/4” (19mm) NPT connection ports and a 1-1/2”
NST cap. It is suitable for use with Class “A” and low viscosity Class “B”
foam concentrates.
The FS25 strainer uses 1” (25mm) NPT connection ports and a 2-1/2” NST
cap. It is suitable for use with both Class “A” and Class “B” foam
concentrates.