Use And Care Manual
Series 663
Pre-assembled distribution manifold for radiant panel systems with 3 to 13 outlets. Cast brass body. EPDM seals.
1 1/4” threaded Female connections. 3/4" Male outlet connections for self-adjusting PEX fittings. Medium: water, glycol
solutions. Maximum percentage of glycol: 50%. Maximum working pressure 150 psi (10 bar). Temperature range 32 to
210°F (0 to 98°C). Air vent maximum discharge pressure 35 psi (2.5 bar).
Consists of:
- Supply manifold;
- Return manifold complete with shut-off valves for use with thermo-electric actuator;
- Pair of end fittings consisting of a fitting with automatic air vent and drain cock;
- Pair of shut-off ball valves complete with port for optional temperature gage;
- Pair of mounting brackets.
TwistFlow series 668S1
Pre-assembled distribution manifold for radiant panel systems with 3 to 13 outlets. Cast brass body. EPDM seals.
1” and 1 1/4” threaded Female connections. 3/4" Male outlet connections. Medium: water, glycol solutions. Maximum
percentage of glycol: 50%. Maximum working pressure 150 psi (10 bar). Temperature range 32 to 180°F (0 to 80°C). Air
vent maximum discharge pressure 35 psi (2.5 bar).
Consists of:
- Supply manifold complete with sight flow gage with adjustable balancing valves scale from 0–2 gpm;
- Return manifold complete with shut-off valves for use with thermo-electric actuator;
- Pair of end fittings consisting of a fitting with automatic air vent and drain cock;
- Pair of shut-off ball valves complete with port for optional temperature gage;
- Pair of mounting brackets.
SPECIFICATION SUMMARIES
(psi) (kPa)Δp (psi)
0.1
1
0.2
0.3
0.5
2
3
5
1
10
2
3
5
20
30
0.4
4
0.1
1
0.2
0.3
0.5
2
3
5
0.4
4
10
10
50
Q (l/h) (
gpm
)
50
20
100
0.1
0.2
0.5
200
0.05
1
2
1000
5
2000
10
500
1.5 2 2.5 3 4 T.O.3.5
Hydronic characteristics of supply manifold for 663 series only
Adjustment
turns
Cv
1.5 0.25
20.55
2.5 1.0
31.7
3.5 2.5
43.0
3.2
Cv = flow in gaI/min for a pressure loss of 1 psi
Totally Open (T.O.)
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