Product Overview

Function
Technical specifications
Product range
Series 172 Pre-assembled Manifold Mixing Station with flow gauges and thermostatic fixed point mixing
- size 1 ¼” manifold, 3 to 13 outlets ¾” male, ¾” supply and return connections
172 series
Manifold mixing stations
thermostatic fixed point mixing
CALEFFI
The 172 series manifold mixing station is designed for use in
manifold-based hydronic distribution systems.
The manifold mixing station incorporates a thermostatic actuator with
built-in sensor which keeps the flow temperature at a constant set
value for use in low temperature systems such as floor radiant panels.
A removable primary circuit hydraulic separator with check valve is
also supplied. The hydraulic separator is essential when there is a
primary circuit circulation pump and when radiator circuits or fan coils
are controlled by thermostatic or thermo-electric valves. When
connecting to a Caleffi HYDROLINK
TM
or hydraulic separator without
a primary pump, the hydraulic separator can be removed and the
manifold mixing station can be connected directly.
The 172 station, like the TWISTFLOW
TM
Series 668S1 distribution
manifolds, can be configured with 3 to 13 circuit outlets offering similar
benefits with built-in sight flow meters/adjustable balancing valves and
optional TWISTOP
TM
thermo-electric zone actuators.
Materials
Three-way mixing valve unit:
Body: brass
Bonnet: brass
Shutter: PSU
Seals: EPDM
Top elbow with supply temperature gage: brass
Primary circuit hydraulic separator:
Body: brass
Check valve: POM
Spring: stainless steel
Shut-off valves:
Body: brass
Ball: brass, chrome plated
Supply and Return Manifolds:
Body: brass
Springs: stainless steel
Seals: EPDM
End fittings: brass
Automatic air vent: brass
Drain valve: brass
Performance
Suitable fluids: water, glycol solutions
Max. percentage of glycol: 30%
Control temperature range: 80–130°F (25–55°C)
Accuracy: ±4°F (±2°C)
Primary inlet max. temperature: 195°F (90°C)
Max. working pressure: 150 psi (10 bar)
Min. opening pressure for primary circuit check valve:
1.5 psi (10 kPa)
Connections: - primary circuit: 3/4” NPT Male
- to mixing valve unit: 1” Female with nut
- manifold circuit outlets: 3/4” Male
- outlet center distance: 2” (50 mm)
Pump
Three-speed pump ‡: Grundfos model UPS 15-58
Material: Body: cast iron
Electric supply: 115 V - 60 Hz
Max. ambient temperature: 105°F (40°C)
Protection class: IP 44
Pump center distance: 6 1/2” (165 mm)
Pump connections: 1 1/2”
‡ Wilo Star S 21 or Alpha 25-55U pump available upon request.
A
7 1/4”
2”
3/4”
90
100
70
50
30
150
170
190
210
°F
2 1/2”
BAGNO
CALEFFI
CALEFFI
1
2
3
4
L/MIN
1
2
3
4
L/MIN
1
2
3
4
L/MIN
1
2
3
4
L/MIN
1
2
3
4
L/MIN
HOBBY WC
SOGGIORNO
CAMERA
CALEFFI
SOGGIORNO
CALEFF
90
100
70
50
30
150
170
190
210
°
F
19 5/8”
Outlets 3 4 5 6 7 8
A 17" 19" 21" 23" 25" 27"
Outlets 9 10 11 12 13
A 30" 32" 34" 36" 38"
Width from wall
mount: 5”
UPS 15-58
shown
01155/14 NA