7-225, 7-230 Series
Maxline
Operation & Maintenance Manual
Model Numbers
7-225-CK-MS
7-225-CK-F
7-225-CK-PEX Connections: 1/2" PEX
7-230-CK-M
7-230-CK-FS
Modifications
Wall cabinet in white enamel finish
-B
including wall mounting bracket
Nickel plated
-NI
Stainless steel cabinet in place of
-T
standard white cabinet
Wall mounting bracket
-W
Separate Stops (7-225-CK-MS only)
-X
Note: Append appropriate -suffix to model number.
Warranty
5 Years - for commercial installations.
Refer to www.symmons.com/warranty for complete
warranty information.
Size
Valve Model
Connection
1/2" Male NPT
7-225-CK-MS
1/2" Female Sweat
7-225-CK-F
1/2" Female NPT
7-225-CK-
1/2" PEX
PEX
7-230-CK-M
3/4" Male NPT
7-230-CK-FS 3/4" Female Sweat
Maxline
Connections: 1/2" male NPT
1/2" female sweat
Connections: 1/2" female NPT
Connections: 3/4" male NPT
Connections: 3/4" female sweat
Table 1: Flow Rate - gpm (L/min)
Min. Flow Rate
0.5 gpm
(1.9 L/min)
(17.1 L/min)
0.5 gpm
(1.9 L/min)
(17.1 L/min)
0.5 gpm
(1.9 L/min)
(13.3 L/min)
0.5 gpm
(1.9 L/min)
(19.0 L/min)
0.5 gpm
(1.9 L/min)
(19.0 L/min)
®
Specification
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)
*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."
Compliance
-ASME A112.18.1; CSA B125.1
-ASSE 1017; CSA B125.3
-ASSE 1070; CSA B125.3
-NSF/ANSI 61.9; NSF/ANSI 372
-US S.3874
Pressure Differential - psi (kPa)
5 psi
10 psi
(34 kPa)
(69 kPa)
4.5 gpm
7.0 gpm
(26.6 L/min)
4.5 gpm
7.0 gpm
(26.6 L/min)
3.5 gpm
5.5 gpm
(20.9 L/min)
5.0 gpm
7.0 gpm
(26.6 L/min)
5.0 gpm
7.0 gpm
(26.6 L/min)
20 psi
25 psi
(138 kPa)
(172 kPa)
9.5 gpm
10.5 gpm
(36.1 L/min)
(39.9 L/min)
9.5 gpm
10.5 gpm
(36.1 L/min)
(39.9 L/min)
8.0 gpm
8.5 gpm
(30.4 L/min)
(32.3 L/min)
10.0 gpm
11.0 gpm
(38.0 L/min)
(41.8 L/min)
10.0 gpm
11.0 gpm
(38.0 L/min)
(41.8 L/min)
30 psi
45 psi
(207 kPa)
(310 kPa)
12.0 gpm
14.0 gpm
(45.6 L/min)
(53.2 L/min)
12.0 gpm
14.0 gpm
(45.6 L/min)
(53.2 L/min)
9.5 gpm
12.0 gpm
(36.1 L/min)
(45.6 L/min)
12.0 gpm
14.0 gpm
(45.6 L/min)
(53.2 L/min)
12.0 gpm
14.0 gpm
(45.6 L/min)
(53.2 L/min)