Application diagram, Caleffi, Infloor sales and service – Infloor Autofill and Backflow 31070, 31071 User Manual
Page 4
T
BAC
Si
ze
s:
Application diagram
T
T
P
T
F
A
VENT
Shut-off valve
Ball valve
Ballstop
Thermometer
Differential by-pass valve
F
Flow switch
Zone valve
Pump
Autoflow
Flow meter
Temperature probe
T
Safety thermostat
Regulator
Expansion vessel
3-way valve
P
Pressure switch
Control pocket
Gas filter
Gas regulator
Air separator
A
Fuel shut-off valve
Anti-vibration joint
Sensor pocket
Safety valve
SPECIFICATION SUMMARIES
Part # 31071
Filling unit with pressure gauge connection and pressure setting indicator. 1/2” NPT Male with union x Female threaded
connection. Brass body. Nylon plastic cover. Sliding surfaces in anti-stick plastic. Diaphragm and seals in NBR. Cartridge
removable for maintenance operations. Maximum working temperature 150°F. Maximum inlet pressure 230 psi. Setting range
3÷60 psi. Pressure indicator for pre-adjustment of device, accuracy ±2 psi. Complete with isolating valve, filter and check valve.
Part # 31070
Charging unit complete with backflow preventer 1/2” NPT Female with union threaded connection. Maximum working
temperature 150°F. Maximum inlet pressure 175 psi.
We reserve the right to change our products and their relevant technical data, contained in this publication, at any time and without prior notice.
CALEFFI
Infloor Sales and Service
P.O. Box 4945, 503 Gregg Drive, Buena Vista, CO 81211
Tel: 719.395.3400 / Fax: 719.395-3555 /