Safety valve are standard back pressure dependent safety relief valves in angle-way execution, specially designed for protection of vessels and other components against excessive pressure.
The valve is designed to meet the strict quality demands and safety requirements for refrigeration installations, specified by the international classification societies.
Installation | These valves must be installed in horizontal positions with the coil housing no more than 45 degrees from the vertical position. |
Construction | The valve is made up from various metals. Whilst stainless steel is used for components like stem, plungers, the main body is made from LCC. |
Application | These valve are for ammonia duty. The MSVA are pilot operated valves whilst the MDSVA are direct operated solenoid valves. They are used is many applications such as cold stores, freezers, chilling applications etc. |
Type | Flanged Connection | Port Size Inches | MOPD PSI | Nominal Liquid Capacity T.R.- Ammonia Pressure Drop P.S.I. | Coil Rating | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
AC | 1 | 2 | 3 | 4 | 5 | Type | Volt-Hz | Watts | |||
MDSVA 12 | 1/2" | 0.140 | 250 | 8.0 | 11.2 | 13.5 | 16 | 17.5 | SVC-1 | 230AC 50/60 |
18 |
MSVA 12 | 1/2" | 0.450 | 275 | 68 | 91 | 110 | 131 | 143 | |||
MSVA 20 | 3/4" | 0.600 | 275 | 75 | 97 | 122 | 145 | 167 | |||
MSVA 25 | 1" | 0.950 | 300 | 119 | 169 | 221 | 241 | 266 | SVC-2 | ||
MSVA 32 | 1.1/4" | 0.075 | 300 | 125 | 174 | 225 | 249 | 277 | |||
MSVA 40 | 1.1/2" | 1.260 | 300 | 275 | 390 | 500 | 550 | 625 |
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