{"id":1307,"date":"2026-03-28T07:10:41","date_gmt":"2026-03-28T07:10:41","guid":{"rendered":"https:\/\/rongyicold.com\/?post_type=product&#038;p=1307"},"modified":"2026-03-28T07:14:25","modified_gmt":"2026-03-28T07:14:25","slug":"sg-type-sight-glass","status":"publish","type":"product","link":"https:\/\/rongyicold.com\/es\/product\/sg-type-sight-glass\/","title":{"rendered":"Vidrio de mira tipo SG"},"content":{"rendered":"<p>\u2022 Se instalan mirillas tipo SGN\/SGS en las l\u00edneas de l\u00edquido de los sistemas de refrigeraci\u00f3n y aire acondicionado para indicar el estado del flujo de refrigerante, el contenido de humedad en el refrigerante y el flujo de aceite lubricante en las l\u00edneas de retorno de aceite de los separadores de aceite.<\/p>\n<p>\u2022 Las mirillas tipo SGN\/SGS est\u00e1n equipadas con un indicador de humedad que muestra el nivel de humedad en el refrigerante cambiando de color.<\/p>\n<p>\u2022 Se utilizan mirillas tipo SGR para controlar el nivel de refrigerante en los receptores o el nivel de aceite lubricante en los c\u00e1rteres de los compresores.<\/p>\n<p>\u2022 Tanto las mirillas tipo SGN como las SGR utilizan material de sellado de PTFE modificado, que es adecuado para diversos refrigerantes y aceites de refrigeraci\u00f3n y proporciona un excelente rendimiento de sellado.<\/p>\n<p>\u2022 Las mirillas tipo SGN\/SGR adoptan una estructura engarzada a prueba de explosiones, con una ventana de visualizaci\u00f3n clara y segura.<\/p>\n<p>\u2022 Las mirillas tipo SGS cuentan con una estructura corporal tradicional independiente con uni\u00f3n por fusi\u00f3n de vidrio y sellado de juntas t\u00f3ricas.<\/p>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div dir=\"ltr\">\n<div><strong>Model de produs:<\/strong><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<table>\n<thead>\n<tr>\n<th>Modelo de extremo de soldadura<\/th>\n<th>Especificaci\u00f3n<\/th>\n<th>Modelo de extremo de hilo<\/th>\n<th>Especificaci\u00f3n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>SGN-1\/4 ODF<\/td>\n<td>1\/4 (&lt;6)<\/td>\n<td>SGS-1\/4 SAE<\/td>\n<td>1\/4 (&lt;6)<\/td>\n<\/tr>\n<tr>\n<td>SGN-3\/8 ODF<\/td>\n<td>3\/8 (&lt;10)<\/td>\n<td>SGS-3\/8 SAE<\/td>\n<td>3\/8 (&lt;10)<\/td>\n<\/tr>\n<tr>\n<td>SGN-1\/2 ODF<\/td>\n<td>1\/2 (&lt;12)<\/td>\n<td>SGS-1\/2 SAE<\/td>\n<td>1\/2 (&lt;12)<\/td>\n<\/tr>\n<tr>\n<td>SGN-5\/8 ODF<\/td>\n<td>5\/8 (&lt;16)<\/td>\n<td>SGS-5\/8 SAE<\/td>\n<td>5\/8 (&lt;16)<\/td>\n<\/tr>\n<tr>\n<td>SGN-3\/4 ODF<\/td>\n<td>3\/4 (AL 19)<\/td>\n<td>SGS-3\/4 SAE<\/td>\n<td>3\/4 (AL 19)<\/td>\n<\/tr>\n<tr>\n<td>SGN-7\/8 ODF<\/td>\n<td>7\/8 (&lt;22)<\/td>\n<td>SGR-3\/4 NPT<\/td>\n<td>3\/4 NPT<\/td>\n<\/tr>\n<tr>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>SGR-G3\/4<\/td>\n<td>G3\/4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div><\/div>\n<\/div>\n<div>\n<div>\n<div>\n<div dir=\"ltr\">\n<div><strong>Par\u00e1metros t\u00e9cnicos:<\/strong><\/div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<table>\n<thead>\n<tr>\n<th>Art\u00edculo<\/th>\n<th>Especificaci\u00f3n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Refrigerantes aplicables<\/td>\n<td>HCFC y HFC<\/td>\n<\/tr>\n<tr>\n<td>Temperatura media aplicable<\/td>\n<td>-40\u00b0C ~ +80\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>M\u00e1x. Presi\u00f3n de trabajo<\/td>\n<td>4,5 MPa<\/td>\n<\/tr>\n<tr>\n<td>M\u00e1x. Presi\u00f3n de explosi\u00f3n<\/td>\n<td>6,8 MPa<\/td>\n<\/tr>\n<tr>\n<td>Fuga anual de refrigerante<\/td>\n<td>\u22642g R22\/a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>Nota:<\/strong> El contenido de humedad permitido para los compresores herm\u00e9ticos est\u00e1 generalmente entre 30 y 75 ppm, mientras que es ligeramente mayor para otros compresores. Para garantizar una protecci\u00f3n eficaz del sistema, el indicador debe controlarse cuidadosamente. Si el color se vuelve amarillo, se debe reemplazar el secador.<\/p>\n<\/div>\n<div><\/div>\n<\/div>\n<\/div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<p>Relaci\u00f3n entre contenido de humedad y color:<\/p>\n<table>\n<thead>\n<tr>\n<th>Refrigerante<\/th>\n<th>25\u00b0C<\/th>\n<th><\/th>\n<th><\/th>\n<th>43\u00b0C<\/th>\n<th><\/th>\n<th><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><\/td>\n<td><strong>Verde<\/strong><\/p>\n<div><\/div>\n<p>(&lt; ppm)<\/td>\n<td><strong>Color intermedio<\/strong><\/p>\n<div><\/div>\n<p>(rango de ppm)<\/td>\n<td><strong>Amarillo<\/strong><\/p>\n<div><\/div>\n<p>(&gt; ppm)<\/td>\n<td><strong>Verde<\/strong><\/p>\n<div><\/div>\n<p>(&lt; ppm)<\/td>\n<td><strong>Color intermedio<\/strong><\/p>\n<div><\/div>\n<p>(rango de ppm)<\/td>\n<td><strong>Amarillo<\/strong><\/p>\n<div><\/div>\n<p>(&gt; ppm)<\/td>\n<\/tr>\n<tr>\n<td>R22\/R502<\/td>\n<td>&lt;30<\/td>\n<td>30~120<\/td>\n<td>&gt;120<\/td>\n<td>&lt;50<\/td>\n<td>50~200<\/td>\n<td>&gt;200<\/td>\n<\/tr>\n<tr>\n<td>HFC-134a<\/td>\n<td>&lt;30<\/td>\n<td>30~100<\/td>\n<td>&gt;100<\/td>\n<td>&lt;45<\/td>\n<td>45~170<\/td>\n<td>&gt;170<\/td>\n<\/tr>\n<tr>\n<td>R404a<\/td>\n<td>&lt;20<\/td>\n<td>20~70<\/td>\n<td>&gt;70<\/td>\n<td>&lt;25<\/td>\n<td>25~100<\/td>\n<td>&gt;100<\/td>\n<\/tr>\n<tr>\n<td>R407c<\/td>\n<td>&lt;30<\/td>\n<td>30~140<\/td>\n<td>&gt;140<\/td>\n<td>&lt;60<\/td>\n<td>60~225<\/td>\n<td>&gt;225<\/td>\n<\/tr>\n<tr>\n<td>R507<\/td>\n<td>&lt;15<\/td>\n<td>15~60<\/td>\n<td>&gt;60<\/td>\n<td>&lt;30<\/td>\n<td>30~110<\/td>\n<td>&gt;110<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div>\n<div dir=\"ltr\">\n<div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<p>Structura:<\/p>\n<div>\n<div>\n<div>\n<div>\n<table>\n<thead>\n<tr>\n<th>Modelo<\/th>\n<th>Conexi\u00f3n<\/th>\n<th>A<\/th>\n<th>B<\/th>\n<th>@C<\/th>\n<th>^D<\/th>\n<th>E<\/th>\n<th>F<\/th>\n<th>L<\/th>\n<th>S<\/th>\n<th>Hilo m<\/th>\n<th>Peso (g) gnSgn<\/th>\n<th>Peso (g) \u00f1an SGS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>SGN\/SGS-1\/4<\/td>\n<td>ODF<\/p>\n<div><\/div>\n<p>SAE<\/td>\n<td>9.5<\/td>\n<td>14.5<\/td>\n<td>28<\/td>\n<td>6.5<\/td>\n<td>7<\/td>\n<td>27<\/td>\n<td>102<\/td>\n<td>14<\/td>\n<td>16\/7-20UNF<\/td>\n<td>105<\/td>\n<td>125<\/td>\n<\/tr>\n<tr>\n<td>SGN\/SGS-3\/8<\/td>\n<td>ODF<\/p>\n<div><\/div>\n<p>SAE<\/td>\n<td>12.5<\/td>\n<td>16.5<\/td>\n<td>28<\/td>\n<td>10.1<\/p>\n<div><\/div>\n<p>\u2014<\/td>\n<td>8<\/td>\n<td>36<\/p>\n<div><\/div>\n<p>14<\/td>\n<td>119<\/p>\n<div><\/div>\n<p>64<\/td>\n<td>19<\/td>\n<td>5\/8-18UNF<\/td>\n<td>145<\/p>\n<div><\/div>\n<p>110<\/td>\n<td>145<\/p>\n<div><\/div>\n<p>155<\/td>\n<\/tr>\n<tr>\n<td>SGN\/SGS-1\/2<\/td>\n<td>ODF<\/p>\n<div><\/div>\n<p>SAE<\/td>\n<td>13<\/td>\n<td>18<\/td>\n<td>31.5<\/td>\n<td>12.8<\/p>\n<div><\/div>\n<p>\u2014<\/td>\n<td>10<\/td>\n<td>46<\/p>\n<div><\/div>\n<p>19<\/td>\n<td>146<\/p>\n<div><\/div>\n<p>78<\/td>\n<td>22<\/td>\n<td>3\/4-16UNF<\/td>\n<td>170<\/p>\n<div><\/div>\n<p>240<\/td>\n<td>150<\/p>\n<div><\/div>\n<p>210<\/td>\n<\/tr>\n<tr>\n<td>SGN\/SGS-5\/8<\/td>\n<td>ODF<\/p>\n<div><\/div>\n<p>SAE<\/td>\n<td>15<\/td>\n<td>20<\/td>\n<td>31.5<\/td>\n<td>16.1<\/p>\n<div><\/div>\n<p>\u2014<\/td>\n<td>14<\/td>\n<td>46<\/p>\n<div><\/div>\n<p>20<\/td>\n<td>152<\/p>\n<div><\/div>\n<p>78<\/td>\n<td>24<\/td>\n<td>7\/8-14UNF<\/td>\n<td>190<\/p>\n<div><\/div>\n<p>350<\/td>\n<td>220<\/p>\n<div><\/div>\n<p>300<\/td>\n<\/tr>\n<tr>\n<td>SGN\/SGS-3\/4<\/td>\n<td>ODF<\/p>\n<div><\/div>\n<p>SAE<\/td>\n<td>16.5<\/td>\n<td>21.5<\/td>\n<td>31.5<\/td>\n<td>19.1<\/p>\n<div><\/div>\n<p>\u2014<\/td>\n<td>16<\/td>\n<td>51<\/p>\n<div><\/div>\n<p>23<\/td>\n<td>167<\/p>\n<div><\/div>\n<p>94<\/td>\n<td>27<\/td>\n<td>1-1\/16-14UNS<\/td>\n<td>270<\/p>\n<div><\/div>\n<p>545<\/td>\n<td>230<\/p>\n<div><\/div>\n<p>440<\/td>\n<\/tr>\n<tr>\n<td>SGN\/SGS-7\/8<\/td>\n<td>ODF<\/p>\n<div><\/div>\n<p>SAE<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>22.3<\/p>\n<div><\/div>\n<p>\u2014<\/td>\n<td>17<\/td>\n<td>54<\/td>\n<td>173<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>315<\/td>\n<td>290<\/td>\n<\/tr>\n<tr>\n<td>SGR-3\/4NPT<\/td>\n<td>TNP<\/td>\n<td>10.5<\/td>\n<td>13<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>32<\/td>\n<td>3\/4NPT<\/td>\n<td>90<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>SGR-G3\/4<\/td>\n<td>G<\/td>\n<td>10.5<\/td>\n<td>13<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>32<\/td>\n<td>G3\/4<\/td>\n<td>70<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u2022 SGN\/SGS type sight glasses are installed in the liquid lines of refrigeration and air conditioning systems to indicate refrigerant flow status, moisture content in the refrigerant, and lubricating oil flow in the oil return lines of oil separators. \u2022 SGN\/SGS type sight glasses are equipped with a moisture indicator that shows the moisture level 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