{"id":1848,"date":"2026-09-28T21:29:08","date_gmt":"2026-09-28T13:29:08","guid":{"rendered":"https:\/\/zhujikaiyi.com\/sight-glasses\/"},"modified":"2026-10-05T12:44:38","modified_gmt":"2026-10-05T04:44:38","slug":"sight-glasses","status":"publish","type":"page","link":"https:\/\/zhujikaiyi.com\/ru_RU\/hvac-refrigeration\/refrigeration-components\/sight-glasses\/","title":{"rendered":"Sight Glasses"},"content":{"rendered":"<div class=\"wp-block-columns hvac-product-page sight-glasses-page has-ast-global-color-4-background-color has-background is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n\n<div class=\"wp-block-column is-vertically-aligned-top fittings-sidebar has-background is-layout-flow wp-container-core-column-is-layout-724f1636 wp-block-column-is-layout-flow\" style=\"background-color:#f5f6f8;padding-top:16px;padding-right:16px;padding-bottom:16px;padding-left:16px;flex-basis:20%\">\n<h2 class=\"wp-block-heading\" style=\"font-size:16px\"><strong>REFRIGERATION COMPONENTS<\/strong><\/h2>\n\n<details class=\"wp-block-details hvac-sidebar-group is-layout-flow wp-block-details-is-layout-flow\"><summary>Refrigeration Strainers\/Filter Driers<\/summary>\n<p class=\"hvac-sidebar-child wp-block-paragraph\"><a href=\"https:\/\/zhujikaiyi.com\/ru_RU\/hvac-refrigeration\/refrigeration-components\/refrigeration-strainers-filter-driers\/single-tube-filter-drier\/\">Single-Tube Filter Drier<\/a><\/p>\n<\/details>\n\n<p class=\"has-text-color has-background hvac-sidebar-current wp-block-paragraph\" style=\"color:#07152b;background-color:#ffcc00;padding-top:8px;padding-right:10px;padding-bottom:8px;padding-left:10px\"><strong>Sight Glasses<\/strong><\/p>\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/zhujikaiyi.com\/ru_RU\/hvac-refrigeration\/refrigeration-components\/capillary-copper-tube-with-nuts\/\">Capillary Copper Tube With Nuts<\/a><\/p>\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/zhujikaiyi.com\/ru_RU\/hvac-refrigeration\/refrigeration-components\/quick-coupler\/\">Quick Coupler<\/a><\/p>\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/zhujikaiyi.com\/ru_RU\/copper-u-tube-with-nuts\/\">U-Tube<\/a><\/p>\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/zhujikaiyi.com\/ru_RU\/vibration-absorbers\/\">Vibration Absorbers<\/a><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:80%\">\n<h1 class=\"wp-block-heading\">Refrigeration Sight Glasses<\/h1>\n<p class=\"wp-block-paragraph\">Refrigeration sight glasses are available in multiple body styles and connection configurations. The three product series below cover ODF welded connections, SAE flare connections and compact flare-type models in the listed sizes.<\/p>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n\n<div class=\"wp-block-cb-carousel\">\n<div class=\"wp-block-cb-slide\"><figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1254\" height=\"1254\" src=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-1.png\" alt=\"Refrigeration sight glass product range with ODF and SAE connections\" class=\"wp-image-1841\" srcset=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-1.png 1254w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-1-300x300.png 300w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-1-1024x1024.png 1024w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-1-150x150.png 150w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-1-768x768.png 768w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-1-12x12.png 12w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-1-600x600.png 600w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-1-100x100.png 100w\" sizes=\"auto, (max-width: 1254px) 100vw, 1254px\" \/><\/figure><\/div>\n<div class=\"wp-block-cb-slide\"><figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1254\" height=\"1254\" src=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-2.png\" alt=\"Refrigeration sight glass with ODF and SAE connection options\" class=\"wp-image-1842\" srcset=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-2.png 1254w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-2-300x300.png 300w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-2-1024x1024.png 1024w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-2-150x150.png 150w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-2-768x768.png 768w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-2-12x12.png 12w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-2-600x600.png 600w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-2-100x100.png 100w\" sizes=\"auto, (max-width: 1254px) 100vw, 1254px\" \/><\/figure><\/div>\n<div class=\"wp-block-cb-slide\"><figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1254\" height=\"1254\" src=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-5.png\" alt=\"Brass refrigeration sight glass models with ODF and SAE connections\" class=\"wp-image-1843\" srcset=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-5.png 1254w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-5-300x300.png 300w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-5-1024x1024.png 1024w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-5-150x150.png 150w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-5-768x768.png 768w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-5-12x12.png 12w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-5-600x600.png 600w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-5-100x100.png 100w\" sizes=\"auto, (max-width: 1254px) 100vw, 1254px\" \/><\/figure><\/div>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Product:<\/strong> Refrigeration Sight Glass<\/p>\n<p class=\"wp-block-paragraph\"><strong>Product Series:<\/strong> 3<\/p>\n<p class=\"wp-block-paragraph\"><strong>Connection Options:<\/strong> ODF \/ SAE<\/p>\n<p class=\"wp-block-paragraph\"><strong>Listed Size Range:<\/strong> 1\/4&#8243; to 1-1\/8&#8243;<\/p>\n<p class=\"wp-block-paragraph\"><strong>Listed Configurations:<\/strong> 28<\/p>\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\"><div class=\"wp-block-button\"><a class=\"wp-block-button__link has-text-color has-background wp-element-button\" href=\"mailto:sales@zhujikaiyi.com?subject=Inquiry%20-%20Refrigeration%20Sight%20Glasses\" style=\"color:#07152b;background-color:#ffcc00\">Request a Quote<\/a><\/div><\/div>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading\">Product Series &amp; Specifications<\/h2>\n<p class=\"wp-block-paragraph\">The three sight glass series below are organized according to the supplied technical drawings. Each series uses the dimension letters shown on its corresponding drawing, allowing buyers to compare connection size, body dimensions and overall length directly with the specification table.<\/p>\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7aed3a0e wp-block-columns-is-layout-flex\" style=\"margin-top:18px;margin-bottom:24px\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-037d570b wp-block-group-is-layout-constrained\" style=\"border-color:#e1e4e8;border-width:1px;border-radius:8px;padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px\">\n<h3 class=\"wp-block-heading\">Design &amp; Function<\/h3>\n<ul class=\"wp-block-list\">\n<li>Designed for liquid lines in refrigeration and air-conditioning systems to provide a clear visual indication of refrigerant flow.<\/li>\n<li>The sight glass can also be used to observe moisture condition in the refrigerant and, in suitable applications, the flow condition of lubricating oil in an oil-separator return line.<\/li>\n<li>Depending on the series, the sight window uses a compression or separable construction with tempered glass and PTFE or O-ring sealing components.<\/li>\n<li>The separable design allows the sight-glass assembly to be removed for service or maintenance on applicable models.<\/li>\n<li>For welded models, high-frequency welding concentrates heat in a small weld area, helping reduce the heat-affected zone and produce a more uniform weld surface.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-037d570b wp-block-group-is-layout-constrained\" style=\"border-color:#e1e4e8;border-width:1px;border-radius:8px;padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px\">\n<h3 class=\"wp-block-heading\">Moisture Indication &amp; Working Conditions<\/h3>\n<ul class=\"wp-block-list\">\n<li>Moisture-indicating models use a color indicator: green indicates no dangerous moisture condition, while yellow indicates excessive moisture content in the refrigeration system.<\/li>\n<li><strong>Applicable refrigerants:<\/strong> R22, R134a, R404A, R407C, R410A and R507C.<\/li>\n<li><strong>Applicable medium temperature:<\/strong> -40\u00b0C to +80\u00b0C.<\/li>\n<li><strong>Applicable ambient temperature:<\/strong> -30\u00b0C to +80\u00b0C.<\/li>\n<li><strong>Maximum working pressure:<\/strong> 4.2 MPa.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n<p class=\"has-small-font-size wp-block-paragraph\">Construction details and operating characteristics may vary by series. Please select the required model using the dimensional tables below and confirm the connection type and application conditions when requesting a quotation.<\/p>\n\n\n<div class=\"wp-block-group hvac-product-series-block has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-fc7dee54 wp-block-group-is-layout-constrained\" style=\"border-color:#e1e4e8;border-width:1px;border-radius:10px;margin-top:20px;margin-bottom:26px;padding-top:24px;padding-right:24px;padding-bottom:26px;padding-left:24px\">\n<h3 class=\"wp-block-heading\">Series A \u2013 ODF Welded \/ SAE Connection Sight Glass<\/h3>\n<p class=\"wp-block-paragraph\">This series is available with welded ODF tube connections and SAE flare connections. ODF sizes are listed from 1\/4&#8243; to 7\/8&#8243;, while SAE sizes are listed from 1\/4&#8243; to 3\/4&#8243;.<\/p>\n\n<figure class=\"wp-block-image size-large is-resized sight-series-drawing\" style=\"width:480px\"><img loading=\"lazy\" decoding=\"async\" width=\"2172\" height=\"724\" src=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-7.png\" alt=\"Sight Glass Series A ODF and SAE dimension drawing\" class=\"wp-image-1846\" style=\"width:480px\" srcset=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-7.png 2172w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-7-300x100.png 300w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-7-1024x341.png 1024w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-7-768x256.png 768w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-7-1536x512.png 1536w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-7-2048x683.png 2048w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-7-18x6.png 18w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-7-600x200.png 600w\" sizes=\"auto, (max-width: 2172px) 100vw, 2172px\" \/><\/figure>\n\n\n<figure class=\"wp-block-table kay-dimension-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Specification<\/th><th>Connection Type<\/th><th>A<\/th><th>B (mm)<\/th><th>C (mm)<\/th><th>D (mm)<\/th><th>E (mm)<\/th><th>PCS\/CTN<\/th><\/tr><\/thead><tbody><tr><td>1\/4&#8243;<\/td><td>ODF<\/td><td>\u00d86.35<\/td><td>7<\/td><td>101<\/td><td>17.5<\/td><td>7.5<\/td><td>162<\/td><\/tr><tr><td>3\/8&#8243;<\/td><td>ODF<\/td><td>\u00d89.52<\/td><td>9<\/td><td>119<\/td><td>17.5<\/td><td>7.5<\/td><td>162<\/td><\/tr><tr><td>1\/2&#8243;<\/td><td>ODF<\/td><td>\u00d812.7<\/td><td>10<\/td><td>146<\/td><td>21<\/td><td>9.5<\/td><td>96<\/td><\/tr><tr><td>5\/8&#8243;<\/td><td>ODF<\/td><td>\u00d815.88<\/td><td>12<\/td><td>146<\/td><td>22<\/td><td>11<\/td><td>96<\/td><\/tr><tr><td>3\/4&#8243;<\/td><td>ODF<\/td><td>\u00d819.05<\/td><td>13<\/td><td>173<\/td><td>23<\/td><td>13.5<\/td><td>96<\/td><\/tr><tr><td>7\/8&#8243;<\/td><td>ODF<\/td><td>\u00d822.23<\/td><td>15<\/td><td>174<\/td><td>22<\/td><td>14.5<\/td><td>96<\/td><\/tr><tr><td>1\/4&#8243;<\/td><td>SAE<\/td><td>7\/16-20UNF<\/td><td>14<\/td><td>64<\/td><td>16<\/td><td>9<\/td><td>126<\/td><\/tr><tr><td>3\/8&#8243;<\/td><td>SAE<\/td><td>5\/8-18UNF<\/td><td>15<\/td><td>67<\/td><td>16<\/td><td>9<\/td><td>126<\/td><\/tr><tr><td>1\/2&#8243;<\/td><td>SAE<\/td><td>3\/4-16UNF<\/td><td>19<\/td><td>73<\/td><td>19<\/td><td>12<\/td><td>126<\/td><\/tr><tr><td>5\/8&#8243;<\/td><td>SAE<\/td><td>7\/8-14UNF<\/td><td>18<\/td><td>74<\/td><td>19<\/td><td>12<\/td><td>55<\/td><\/tr><tr><td>3\/4&#8243;<\/td><td>SAE<\/td><td>1-1\/16-14UNF<\/td><td>21<\/td><td>82<\/td><td>22<\/td><td>14.5<\/td><td>55<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<\/div>\n\n\n<div class=\"wp-block-group hvac-product-series-block has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-2e16460c wp-block-group-is-layout-constrained\" style=\"border-color:#e1e4e8;border-width:1px;border-radius:10px;margin-bottom:26px;padding-top:24px;padding-right:24px;padding-bottom:26px;padding-left:24px\">\n<h3 class=\"wp-block-heading\">Series B \u2013 ODF Welded \/ SAE Connection Sight Glass<\/h3>\n<p class=\"wp-block-paragraph\">This second body style is also available in ODF and SAE configurations. The ODF range extends to 1-1\/8&#8243;, with dimensions differing from Series A as listed below.<\/p>\n\n<figure class=\"wp-block-image size-large is-resized sight-series-drawing\" style=\"width:480px\"><img loading=\"lazy\" decoding=\"async\" width=\"1672\" height=\"405\" src=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-6.png\" alt=\"Sight Glass Series B ODF and SAE dimension drawing\" class=\"wp-image-1847\" style=\"width:480px\" srcset=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-6.png 1672w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-6-300x73.png 300w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-6-1024x248.png 1024w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-6-768x186.png 768w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-6-1536x372.png 1536w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-6-18x4.png 18w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-6-600x145.png 600w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n\n\n<figure class=\"wp-block-table kay-dimension-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Specification<\/th><th>Connection Type<\/th><th>A<\/th><th>B (mm)<\/th><th>C (mm)<\/th><th>D (mm)<\/th><th>E (mm)<\/th><th>PCS\/CTN<\/th><\/tr><\/thead><tbody><tr><td>1\/4&#8243;<\/td><td>ODF<\/td><td>\u00d86.35<\/td><td>7<\/td><td>101<\/td><td>14.5<\/td><td>8.5<\/td><td>162<\/td><\/tr><tr><td>3\/8&#8243;<\/td><td>ODF<\/td><td>\u00d89.52<\/td><td>9<\/td><td>119<\/td><td>14.5<\/td><td>8.5<\/td><td>162<\/td><\/tr><tr><td>1\/2&#8243;<\/td><td>ODF<\/td><td>\u00d812.7<\/td><td>10<\/td><td>146<\/td><td>16.5<\/td><td>11.5<\/td><td>96<\/td><\/tr><tr><td>5\/8&#8243;<\/td><td>ODF<\/td><td>\u00d815.88<\/td><td>12<\/td><td>146<\/td><td>18<\/td><td>13<\/td><td>96<\/td><\/tr><tr><td>3\/4&#8243;<\/td><td>ODF<\/td><td>\u00d819.05<\/td><td>13<\/td><td>173<\/td><td>20<\/td><td>14<\/td><td>96<\/td><\/tr><tr><td>7\/8&#8243;<\/td><td>ODF<\/td><td>\u00d822.23<\/td><td>15<\/td><td>173<\/td><td>21.5<\/td><td>15.5<\/td><td>96<\/td><\/tr><tr><td>1-1\/8&#8243;<\/td><td>ODF<\/td><td>\u00d828.57<\/td><td>18<\/td><td>212<\/td><td>23.5<\/td><td>18.5<\/td><td>96<\/td><\/tr><tr><td>1\/4&#8243;<\/td><td>SAE<\/td><td>7\/16-20UNF<\/td><td>14<\/td><td>64<\/td><td>14.5<\/td><td>8.5<\/td><td>126<\/td><\/tr><tr><td>3\/8&#8243;<\/td><td>SAE<\/td><td>5\/8-18UNF<\/td><td>17<\/td><td>70<\/td><td>14.5<\/td><td>8.5<\/td><td>126<\/td><\/tr><tr><td>1\/2&#8243;<\/td><td>SAE<\/td><td>3\/4-16UNF<\/td><td>19<\/td><td>76<\/td><td>16.5<\/td><td>11.5<\/td><td>126<\/td><\/tr><tr><td>5\/8&#8243;<\/td><td>SAE<\/td><td>7\/8-14UNF<\/td><td>19<\/td><td>76<\/td><td>18<\/td><td>13<\/td><td>55<\/td><\/tr><tr><td>3\/4&#8243;<\/td><td>SAE<\/td><td>1-1\/16-14UNF<\/td><td>20<\/td><td>88<\/td><td>20<\/td><td>14<\/td><td>55<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<\/div>\n\n\n<div class=\"wp-block-group hvac-product-series-block has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-537d75ce wp-block-group-is-layout-constrained\" style=\"border-color:#e1e4e8;border-width:1px;border-radius:10px;margin-bottom:30px;padding-top:24px;padding-right:24px;padding-bottom:26px;padding-left:24px\">\n<h3 class=\"wp-block-heading\">Series C \u2013 SAE Flare Sight Glass<\/h3>\n<p class=\"wp-block-paragraph\">Compact flare-type sight glass with SAE thread specifications from 1\/4&#8243; to 3\/4&#8243;.<\/p>\n\n<figure class=\"wp-block-image size-large is-resized sight-series-drawing\" style=\"width:240px\"><img loading=\"lazy\" decoding=\"async\" width=\"1448\" height=\"1086\" src=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass.png\" alt=\"Sight Glass Series C SAE dimension drawing\" class=\"wp-image-1853\" style=\"width:240px\" srcset=\"https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass.png 1448w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-300x225.png 300w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-1024x768.png 1024w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-768x576.png 768w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-16x12.png 16w, https:\/\/zhujikaiyi.com\/wp-content\/uploads\/2026\/09\/sight-glass-600x450.png 600w\" sizes=\"auto, (max-width: 1448px) 100vw, 1448px\" \/><\/figure>\n\n\n<figure class=\"wp-block-table kay-dimension-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Specification<\/th><th>A<\/th><th>C (mm)<\/th><th>D (mm)<\/th><th>E (mm)<\/th><th>F (mm)<\/th><th>PCS\/CTN<\/th><\/tr><\/thead><tbody><tr><td>1\/4&#8243;<\/td><td>7\/16-20UNF<\/td><td>80<\/td><td>19<\/td><td>9<\/td><td>16<\/td><td>108<\/td><\/tr><tr><td>3\/8&#8243;<\/td><td>5\/8-18UNF<\/td><td>89.5<\/td><td>24.5<\/td><td>9<\/td><td>16<\/td><td>108<\/td><\/tr><tr><td>1\/2&#8243;<\/td><td>3\/4-16UNF<\/td><td>97<\/td><td>27<\/td><td>12<\/td><td>19<\/td><td>108<\/td><\/tr><tr><td>5\/8&#8243;<\/td><td>7\/8-14UNF<\/td><td>100.5<\/td><td>30.5<\/td><td>12<\/td><td>19<\/td><td>108<\/td><\/tr><tr><td>3\/4&#8243;<\/td><td>1-1\/16-14UNF<\/td><td>112.5<\/td><td>34.5<\/td><td>14.5<\/td><td>22<\/td><td>108<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<\/div>\n\n<h2 class=\"wp-block-heading\">How to Select<\/h2>\n<p class=\"wp-block-paragraph\">Please specify the required series, nominal specification, connection type and quantity. For ODF models, confirm the tube diameter shown in column A. For SAE models, confirm the listed UNF thread specification.<\/p>\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions<\/h2>\n<h3 class=\"wp-block-heading\">What connection types are listed?<\/h3>\n<p class=\"wp-block-paragraph\">The supplied specifications include ODF welded connections and SAE flare connections.<\/p>\n<h3 class=\"wp-block-heading\">What is the largest size shown?<\/h3>\n<p class=\"wp-block-paragraph\">The largest listed nominal size is 1-1\/8&#8243; in the Series B ODF range.<\/p>\n<h3 class=\"wp-block-heading\">How should I request a quotation?<\/h3>\n<p class=\"wp-block-paragraph\">Send the required series, specification, connection type and quantity. If you are matching an existing part, include the relevant dimensions from the table.<\/p>\n\n\n<div class=\"wp-block-group has-border-color has-white-background-color has-background is-layout-constrained wp-container-core-group-is-layout-037d570b wp-block-group-is-layout-constrained\" style=\"border-color:#ffcc00;border-width:1px;padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px\">\n<h2 class=\"wp-block-heading\">International Buyer &amp; Sourcing Information<\/h2><p class=\"wp-block-paragraph\">Refrigeration sight glasses are commonly sourced by HVAC\/R importers, refrigeration parts wholesalers, distributors, maintenance suppliers and equipment manufacturers looking for visual refrigerant-flow and moisture-status indication components. This product range includes multiple body and connection configurations for different refrigeration piping requirements.<\/p><p class=\"wp-block-paragraph\">For quotation and sourcing, buyers should specify the required series, connection type, size and quantity. We can review the requested configuration and provide product information for wholesale, distribution and export orders.<\/p><p class=\"wp-block-paragraph\"><strong>Need Refrigeration Sight Glasses?<\/strong><\/p>\n<p class=\"wp-block-paragraph\">Send us the required series, size, connection type and quantity for quotation and model confirmation.<\/p>\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\"><div class=\"wp-block-button\"><a class=\"wp-block-button__link has-text-color has-background wp-element-button\" href=\"mailto:sales@zhujikaiyi.com?subject=Inquiry%20-%20Refrigeration%20Sight%20Glasses\" style=\"color:#07152b;background-color:#ffcc00\">Request a Quote \u2192<\/a><\/div><\/div>\n<\/div>\n\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Refrigeration sight glasses with ODF and SAE connection options across three product series and detailed dimensional specifications.<\/p>","protected":false},"author":1,"featured_media":0,"parent":346,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"disabled","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_yoast_wpseo_focuskw":"","rank_math_title":"Sight Glasses | KAIYI","rank_math_description":"Explore Sight Glasses from KAIYI for HVAC and refrigeration systems. Contact us for specifications, compatible sizes, bulk pricing and export supply.","rank_math_focus_keyword":"Sight Glasses"},"class_list":["post-1848","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/zhujikaiyi.com\/ru_RU\/wp-json\/wp\/v2\/pages\/1848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zhujikaiyi.com\/ru_RU\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/zhujikaiyi.com\/ru_RU\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/zhujikaiyi.com\/ru_RU\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zhujikaiyi.com\/ru_RU\/wp-json\/wp\/v2\/comments?post=1848"}],"version-history":[{"count":12,"href":"https:\/\/zhujikaiyi.com\/ru_RU\/wp-json\/wp\/v2\/pages\/1848\/revisions"}],"predecessor-version":[{"id":2054,"href":"https:\/\/zhujikaiyi.com\/ru_RU\/wp-json\/wp\/v2\/pages\/1848\/revisions\/2054"}],"up":[{"embeddable":true,"href":"https:\/\/zhujikaiyi.com\/ru_RU\/wp-json\/wp\/v2\/pages\/346"}],"wp:attachment":[{"href":"https:\/\/zhujikaiyi.com\/ru_RU\/wp-json\/wp\/v2\/media?parent=1848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}