Hanna Instruments bl 7917 用户手册
16
LEGEND
HOSE
PIPE
CONNECTION
RESEVOIR
MANUAL
SHUTOFF
VALVE
SHUTOFF
VALVE
PUMP
FILTER /
FOOT VALVE
FOOT VALVE
CHECK VALVE
EXAMPLE OF TYPICAL INSTALLATIONS
Flooded Suction Installation
Suggested Installation for consis-
tent output when using a low
stroke rate. Also suggested for
highly viscous chemicals.
A slight suction pressure avoids
self-priming problems, especially
with high viscosity liquids.
Suggested Installation for consis-
tent output when using a low
stroke rate. Also suggested for
highly viscous chemicals.
A slight suction pressure avoids
self-priming problems, especially
with high viscosity liquids.
Suction Lift Installation
Suggested installation for most in-line ap-
plications with nominal output and
pressures.
The maximum self-priming height is
1.5 m (5 ft.). It is advisable to install a
level controller in order to stop the pump
when feed tank (reservoir) liquid level is
low.
Suggested installation for most in-line ap-
plications with nominal output and
pressures.
The maximum self-priming height is
1.5 m (5 ft.). It is advisable to install a
level controller in order to stop the pump
when feed tank (reservoir) liquid level is
low.
Uphill Installation
Suggested installation whenever the supply is located higher than the
discharge point; typically a waste water application.
Suggested installation whenever the supply is located higher than the
discharge point; typically a waste water application.
It is important to install the Injection valve to prevent siphoning.