Maxline
®
Water temperature limiting valve including integral
checks and dual stainless steel strainers for double
protection against suspended particles in supply
lines. Valve made from lead free* metal components
(see table 1 for flow rates).
Temperature control range:
60°F - 140°F (15.6°C - 60°C)
Minimum supply pressure:
20 psi (138 kPa)
Maximum supply pressure:
125 psi (862 kPa)
Inlet to outlet temperature differential:
10°F (5.55°C)
Model Numbers
7-225-CK-MS
Specification
Modifications
Warranty
5 Years
- for commercial installations.
Refer to www.symmons.com/warranty for complete
warranty information.
Connections: 1/2" male NPT
1/2" female sweat
7-225-CK-F
Connections: 1/2" female NPT
7-225-CK-PEX
Connections: 1/2" PEX
Compliance
Note:
Append appropriate -suffix to model number.
Maxline
Operation & Maintenance Manual
7-225, 7-230 Series
7-230-CK-M
Connections: 3/4" male NPT
7-230-CK-FS
Connections: 3/4" female sweat
Table 1: Flow Rate - gpm (L/min)
Valve Model
Size
Connection
Min. Flow Rate
Pressure Differential - psi (kPa)
5 psi
(34 kPa)
10 psi
(69 kPa)
20 psi
(138 kPa)
25 psi
(172 kPa)
30 psi
(207 kPa)
45 psi
(310 kPa)
7-225-CK-MS
1/2" Male NPT
1/2" Female Sweat
0.5 gpm
(1.9 L/min)
4.5 gpm
(17.1 L/min)
7.0 gpm
(26.6 L/min)
9.5 gpm
(36.1 L/min)
10.5 gpm
(39.9 L/min)
12.0 gpm
(45.6 L/min)
14.0 gpm
(53.2 L/min)
7-225-CK-F 1/2" Female NPT
0.5 gpm
(1.9 L/min)
4.5 gpm
(17.1 L/min)
7.0 gpm
(26.6 L/min)
9.5 gpm
(36.1 L/min)
10.5 gpm
(39.9 L/min)
12.0 gpm
(45.6 L/min)
14.0 gpm
(53.2 L/min)
7-225-CK-
PEX
1/2" PEX
0.5 gpm
(1.9 L/min)
3.5 gpm
(13.3 L/min)
5.5 gpm
(20.9 L/min)
8.0 gpm
(30.4 L/min)
8.5 gpm
(32.3 L/min)
9.5 gpm
(36.1 L/min)
12.0 gpm
(45.6 L/min)
7-230-CK-M
3/4" Male NPT
0.5 gpm
(1.9 L/min)
5.0 gpm
(19.0 L/min)
7.0 gpm
(26.6 L/min)
10.0 gpm
(38.0 L/min)
11.0 gpm
(41.8 L/min)
12.0 gpm
(45.6 L/min)
14.0 gpm
(53.2 L/min)
7-230-CK-FS 3/4" Female Sweat
0.5 gpm
(1.9 L/min)
5.0 gpm
(19.0 L/min)
7.0 gpm
(26.6 L/min)
10.0 gpm
(38.0 L/min)
11.0 gpm
(41.8 L/min)
12.0 gpm
(45.6 L/min)
14.0 gpm
(53.2 L/min)
*According to US Senate bill S.3874, the term 'lead free' is defined as
follows: "not more than a weighted average of 0.25 percent lead when
used with respect to the wetted surfaces of pipes, pipe fittings, plumbing
fittings, and fixtures."
-T
Stainless steel cabinet in place of
standard white cabinet
-B
Wall cabinet in white enamel finish
including wall mounting bracket
-W
Wall mounting bracket
-ASME A112.18.1; CSA B125.1
-ASSE 1070; CSA B125.3
-NSF/ANSI 61.9; NSF/ANSI 372
-US S.3874
-ASSE 1017; CSA B125.3
-NI
Nickel plated
-X
Separate Stops (7-225-CK-MS only)
