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The MasterGuard Series is a High Flow Temperature Actuated Mixing Valve that mixes hot water with cold to deliver tempered water at a controlled temperature up to 150°F (66°C) maximum.
The MasterGuards are central mixers intended for installation in the plant room of commercial and industrial facilities to distribute controlled temperature water to the domestic hot water system of a whole building or a section of the building. The MasterGuard incorporates a fast acting, high quality thermostatic element that senses the outlet water temperature and reacts to maintain a stable delivery temperature even under changing flows or variations in supply temperatures. The valve also greatly reduces the outlet flow in the event of a cold water supply failure.
The MasterGuard features a robust design based on the expertise gained from years of experience in the design and manufacture of safety valves. Every valve is tested for performance on an automated testing station during the assembly process. The valves are third party listed to ASSE 1017 and CSA B 125.3 standards. The MasterGuard valves have an adjusting knob that can be locked at a desired temperature. Alternatively it can function in an adjusting mode, with the handle clearly marked to indicate the direction to turn to achieve hotter or colder water temperatures.
The MasterGuard is shipped complete as a kit with service fittings (integral shut-off valve and gauge port) on each inlet. The check valve and strainer assembly are housed in the body of the valve for easy serviceability. The valves comes with a temperature gauge that could be mounted either on the mixed outlet or the two inlets. The service fittings have a female inlet thread that secure to the base through union connections. The mix water outlet is female NPT. The MasterGuard series is available in sizes from ¾" to 2".
The MasterGuards are central mixers intended for installation in the plant room of commercial and industrial facilities to distribute controlled temperature water to the domestic hot water system of a whole building or a section of the building. The MasterGuard incorporates a fast acting, high quality thermostatic element that senses the outlet water temperature and reacts to maintain a stable delivery temperature even under changing flows or variations in supply temperatures. The valve also greatly reduces the outlet flow in the event of a cold water supply failure.
The MasterGuard features a robust design based on the expertise gained from years of experience in the design and manufacture of safety valves. Every valve is tested for performance on an automated testing station during the assembly process. The valves are third party listed to ASSE 1017 and CSA B 125.3 standards. The MasterGuard valves have an adjusting knob that can be locked at a desired temperature. Alternatively it can function in an adjusting mode, with the handle clearly marked to indicate the direction to turn to achieve hotter or colder water temperatures.
The MasterGuard is shipped complete as a kit with service fittings (integral shut-off valve and gauge port) on each inlet. The check valve and strainer assembly are housed in the body of the valve for easy serviceability. The valves comes with a temperature gauge that could be mounted either on the mixed outlet or the two inlets. The service fittings have a female inlet thread that secure to the base through union connections. The mix water outlet is female NPT. The MasterGuard series is available in sizes from ¾" to 2".
Unit of Measure
Type |
N/A Thermostatic Mixing Valve |
Connection Type |
N/A NPT |
Weight |
N/A 10.3 lb4.7 kg |
Size |
N/A 3/4" Inlet x 1" Outlet |
Operating Temperature [Min] |
N/A 85 ºF29.4 ºC |
Operating Temperature [Max] |
N/A 150 ºF66 ºC |
Operating Pressure [Max] |
N/A 125 psi8.62 bar |
Factory Set Temperature Range |
N/A 116.5 ºF ± 3.5 ºF (47 ºC ± 2 ºC) |
Hot Temperature Supply Range |
N/A 120 - 180 ºF (48.9 - 82.2 ºC) |
Cold Temperature Supply Range |
N/A 39 - 80 ºF (3.9 - 26.7 ºC) |
Flow @ 45 psi |
N/A 64 gpm |
Min Flow Rate |
N/A 5 gpm |
A |
N/A 7.3 in |
B |
N/A 1.4 in |
C |
N/A 12.1 in |
D |
N/A 14.50 in |
E |
N/A 5.2 in |
F |
N/A 7.6 in |
G |
N/A 9.00 in |
H |
N/A 3.6 in |
I |
N/A 2.0 in |
Body Material |
N/A Lead-Free Brass |
Seals Material |
N/A EPDM |
Springs Material |
N/A Stainless Steel |
Internal Cap Material |
N/A Brass |
Piston Material |
N/A PTFE Coated Stainless Steel |
Features and Benefits |
N/A Accurate temperature control, even at very low flows: Faster to commission, greater user comfort and safety. Fast reaction to changes in flow rate or supply temperature: Constant outlet temperature for greater comfort! Robust, low complexity construction: Superior reliability, improved user safety. Listed by IAPMO, CSA, and ASSE: Inspector friendly, peace of mind! |
Specification |
N/A A Temperature Actuated Mixing Valve shall be installed at hot water source to distribute tempered water throughout the domestic hot water system with mixed temperature setting as required by the local plumbing codes. The valve shall have a thermostatic control mechanism based on the expanding wax principle. The valve shall be certified to ASSE 1017, CSA B 125.3, NSF 372 and NSF/ANSI 61 standards and shall be listed by a third party. The valve shall be complete with integral shut-off valve isolators, strainers, check valves and gauge ports on each inlet. The valve shall be a Cash Acme MasterGuard. |
Typical Installation |
N/A The MasterGuards are central mixers intended for installation in the plant room of commercial and industrial facilities to distribute controlled temperature water to the domestic hot water system of a whole building or section of a building. |
Certifications |
N/A The Cash Acme MasterGuard is certified to ASSE 1017, CSA B125.3, and listed by IAPMO, CSA, and ASSE for use in accordance with U.S and Canadian plumbing codes. |
