{"title":"Tube \u0026 Pipe Sight Glasses","description":"\u003ch2\u003eTube \u0026amp; Pipe Sight Glasses\u003c\/h2\u003e\n\n\u003cp\u003e\n  ProAirSupply offers acrylic tube and pipe sight glasses for industrial vacuum,\n  pneumatic conveying, and material handling systems. Sight glasses provide a\n  visible section in the system so operators can quickly observe material moving\n  through the tubing or pipe.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  The acrylic viewing tube is aligned with the adjoining tube or pipe to provide\n  a smooth material-flow transition. A stainless steel grounding strip is included\n  to help eliminate static buildup.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eLooking for a specific tube or pipe sight glass?\u003c\/strong\u003e\n  Enter the diameter, wall thickness, material, or product number in the\n  ProAirSupply search bar to locate available configurations.\n\u003c\/p\u003e\n\n\u003ch2\u003eTube Sight Glasses\u003c\/h2\u003e\n\n\u003cp\u003e\n  Tube sight glasses are available for industrial vacuum tubing in sizes from\n  \u003cstrong\u003e1-1\/2 inch through 6 inch\u003c\/strong\u003e. Available tube wall configurations\n  include \u003cstrong\u003e16 gauge, 14 gauge, and 11 gauge\u003c\/strong\u003e depending on diameter.\n\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"padding:12px; border:1px solid #ddd; text-align:left;\"\u003eTube Diameter\u003c\/th\u003e\n      \u003cth style=\"padding:12px; border:1px solid #ddd; text-align:left;\"\u003eAvailable Gauges\u003c\/th\u003e\n      \u003cth style=\"padding:12px; border:1px solid #ddd; text-align:left;\"\u003eStandard Tube Ends\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003e1-1\/2\" – 4-1\/2\"\u003c\/td\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003eSelected 16 GA and 11 GA configurations\u003c\/td\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003eAluminum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003e5\"\u003c\/td\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003e14 GA and 11 GA\u003c\/td\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003eAluminum\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003e6\"\u003c\/td\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003e11 GA\u003c\/td\u003e\n      \u003ctd style=\"padding:12px; border:1px solid #ddd;\"\u003eAluminum\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003ePipe Sight Glasses\u003c\/h2\u003e\n\n\u003cp\u003e\n  Pipe sight glasses are available in sizes from \u003cstrong\u003e2 inch through 6 inch\u003c\/strong\u003e\n  for compatible industrial piping systems.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  Pipe configurations are available in \u003cstrong\u003eSchedule 5, Schedule 10,\n  Schedule 40, and Schedule 80\u003c\/strong\u003e. Standard pipe-end materials shown\n  include aluminum and carbon steel.\n\u003c\/p\u003e\n\n\u003ch2\u003eAcrylic Viewing Section\u003c\/h2\u003e\n\n\u003cp\u003e\n  The acrylic sight glass provides a clear viewing area so material flow can\n  be checked without opening the vacuum or conveying system.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  Standard sight glass dimensions include a \u003cstrong\u003e7-inch viewing area\u003c\/strong\u003e\n  and an \u003cstrong\u003eoverall length of 16 inches\u003c\/strong\u003e.\n\u003c\/p\u003e\n\n\u003ch2\u003eGrounding Strip for Static Control\u003c\/h2\u003e\n\n\u003cp\u003e\n  Each sight glass includes a stainless steel grounding strip running across\n  the acrylic viewing section. The grounding strip is designed to help reduce\n  static buildup across the nonmetallic viewing area.\n\u003c\/p\u003e\n\n\u003ch2\u003eTube \u0026amp; Pipe End Materials\u003c\/h2\u003e\n\n\u003cp\u003e\n  Standard tube or pipe ends are manufactured from\n  \u003cstrong\u003ealuminum or carbon steel\u003c\/strong\u003e depending on the selected\n  configuration.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eStainless steel and galvanized ends are available upon request.\u003c\/strong\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eSight Glass Operating Temperature\u003c\/h2\u003e\n\n\u003cp\u003e\n  These acrylic tube and pipe sight glasses are\n  \u003cstrong\u003enot recommended for applications above 180°F\u003c\/strong\u003e.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  Verify the operating temperature, tubing or pipe diameter, wall thickness,\n  and material before selecting a sight glass for your system.\n\u003c\/p\u003e\n\n\u003ch2\u003eChoosing the Correct Tube or Pipe Sight Glass\u003c\/h2\u003e\n\n\u003cp\u003e\n  When selecting a sight glass, verify whether the system uses\n  \u003cstrong\u003evacuum tubing or pipe\u003c\/strong\u003e and match the diameter, gauge or\n  schedule, end material, and adjoining system components.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cstrong\u003eDon't see the sight glass configuration you need?\u003c\/strong\u003e\n  Search ProAirSupply by diameter, gauge, schedule, material, or product number.\n  Special sight glasses are also available upon request.\n\u003c\/p\u003e\n\n\u003ch2\u003eShop Tube \u0026amp; Pipe Sight Glasses\u003c\/h2\u003e\n\n\u003cp\u003e\n  Browse acrylic tube and pipe sight glasses for industrial vacuum and material\n  conveying systems. Available configurations include tube sizes from 1-1\/2\n  through 6 inches and pipe sizes from 2 through 6 inches, with aluminum or\n  carbon steel ends and additional materials available upon request.\n\u003c\/p\u003e","products":[{"product_id":"200016alusg-sight-glass","title":"200016ALUSG 2 Inch OD Tube Sight Glass","description":"\u003ch2\u003e2 Inch OD Tube Sight Glass\u003c\/h2\u003e\u003ch3\u003eVacuum Piping Accessories - Tube Sight Glass\u003c\/h3\u003e\u003ch4\u003eChoose from the Following Options for 200016ALUSG\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eMaterial Options:\u003c\/strong\u003e\u003cbr\u003eAluminum\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfiguration Options:\u003c\/strong\u003e\u003cbr\u003eTube Sight Glass for Visual Material Flow Inspection\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003cbr\u003eAvailable in 11 Gauge and 16 Gauge construction\u003c\/p\u003e\u003cp\u003e200016ALUSG Tube Sight Glass for Visual Material Flow Inspection in industrial vacuum tubing and piping systems. Sight glasses help operators monitor product movement, confirm system flow, and support reliable operation in dust collection, pneumatic conveying, and industrial vacuum applications.\u003c\/p\u003e\u003cp\u003e Part numbers associated with these sight glasses include:\u003cbr\u003e200016ALUSG\u003cbr\u003e200011ALUSG\u003c\/p\u003e","brand":"HP Products","offers":[{"title":"Aluminum \/ 16","offer_id":42856277409888,"sku":"200016ALUSG","price":132.78,"currency_code":"USD","in_stock":true},{"title":"Aluminum \/ 11","offer_id":42856277442656,"sku":"200011ALUSG","price":131.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4601\/5072\/files\/pneumatic-conveying-sight-glass.png?v=1781030142"},{"product_id":"225016alusg-sight-glass","title":"225016ALUSG 2-1\/4 Inch OD Tube Sight Glass","description":"\u003ch2\u003e2-1\/4 Inch OD Tube Sight Glass\u003c\/h2\u003e\u003ch3\u003eVacuum Piping Accessories - Tube Sight Glass\u003c\/h3\u003e\u003ch4\u003eChoose from the Following Options for 225016ALUSG\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eMaterial Options:\u003c\/strong\u003e\u003cbr\u003eAluminum\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfiguration Options:\u003c\/strong\u003e\u003cbr\u003eTube Sight Glass for Visual Material Flow Inspection\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003cbr\u003eAvailable in 16 Gauge construction\u003c\/p\u003e\u003cp\u003e225016ALUSG Tube Sight Glass for Visual Material Flow Inspection in industrial vacuum tubing and piping systems. Sight glasses help operators monitor product movement, confirm system flow, and support reliable operation in dust collection, pneumatic conveying, and industrial vacuum applications.\u003c\/p\u003e\u003cp\u003e Part numbers associated with these sight glasses include:\u003cbr\u003e225016ALUSG\u003c\/p\u003e","brand":"HP Products","offers":[{"title":"Aluminum \/ 16","offer_id":42982760218720,"sku":"225016ALUSG","price":132.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4601\/5072\/files\/pneumatic-conveying-sight-glass.png?v=1781030142"},{"product_id":"250016alusg-sight-glass","title":"250016ALUSG 2-1\/2 Inch OD Tube Sight Glass","description":"\u003ch2\u003e2-1\/2 Inch OD Tube Sight Glass\u003c\/h2\u003e\u003ch3\u003eVacuum Piping Accessories - Tube Sight Glass\u003c\/h3\u003e\u003ch4\u003eChoose from the Following Options for 250016ALUSG\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eMaterial Options:\u003c\/strong\u003e\u003cbr\u003eAluminum\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfiguration Options:\u003c\/strong\u003e\u003cbr\u003eTube Sight Glass for Visual Material Flow Inspection\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003cbr\u003eAvailable in 11 Gauge and 16 Gauge construction\u003c\/p\u003e\u003cp\u003e250016ALUSG Tube Sight Glass for Visual Material Flow Inspection in industrial vacuum tubing and piping systems. Sight glasses help operators monitor product movement, confirm system flow, and support reliable operation in dust collection, pneumatic conveying, and industrial vacuum applications.\u003c\/p\u003e\u003cp\u003e Part numbers associated with these sight glasses include:\u003cbr\u003e250016ALUSG\u003cbr\u003e250011ALUSG\u003c\/p\u003e","brand":"HP Products","offers":[{"title":"Aluminum \/ 16","offer_id":42982760251488,"sku":"250016ALUSG","price":137.49,"currency_code":"USD","in_stock":true},{"title":"Aluminum \/ 11","offer_id":42982760284256,"sku":"250011ALUSG","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4601\/5072\/files\/pneumatic-conveying-sight-glass.png?v=1781030142"},{"product_id":"300016alusg-sight-glass","title":"300016ALUSG 3 Inch OD Tube Sight Glass","description":"\u003ch2\u003e3 Inch OD Tube Sight Glass\u003c\/h2\u003e\u003ch3\u003eVacuum Piping Accessories - Tube Sight Glass\u003c\/h3\u003e\u003ch4\u003eChoose from the Following Options for 300016ALUSG\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eMaterial Options:\u003c\/strong\u003e\u003cbr\u003eAluminum\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfiguration Options:\u003c\/strong\u003e\u003cbr\u003eTube Sight Glass for Visual Material Flow Inspection\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003cbr\u003eAvailable in 11 Gauge and 16 Gauge construction\u003c\/p\u003e\u003cp\u003e300016ALUSG Tube Sight Glass for Visual Material Flow Inspection in industrial vacuum tubing and piping systems. Sight glasses help operators monitor product movement, confirm system flow, and support reliable operation in dust collection, pneumatic conveying, and industrial vacuum applications.\u003c\/p\u003e\u003cp\u003e Part numbers associated with these sight glasses include:\u003cbr\u003e300016ALUSG\u003cbr\u003e300011ALUSG\u003c\/p\u003e","brand":"HP Products","offers":[{"title":"Aluminum \/ 16","offer_id":42982760415328,"sku":"300016ALUSG","price":209.14,"currency_code":"USD","in_stock":true},{"title":"Aluminum \/ 11","offer_id":42982760448096,"sku":"300011ALUSG","price":179.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4601\/5072\/files\/pneumatic-conveying-sight-glass.png?v=1781030142"},{"product_id":"350016alusg-sight-glass","title":"350016ALUSG 3-1\/2 Inch OD Tube Sight Glass","description":"\u003ch2\u003e3-1\/2 Inch OD Tube Sight Glass\u003c\/h2\u003e\u003ch3\u003eVacuum Piping Accessories - Tube Sight Glass\u003c\/h3\u003e\u003ch4\u003eChoose from the Following Options for 350016ALUSG\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eMaterial Options:\u003c\/strong\u003e\u003cbr\u003eAluminum\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfiguration Options:\u003c\/strong\u003e\u003cbr\u003eTube Sight Glass for Visual Material Flow Inspection\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003cbr\u003eAvailable in 11 Gauge and 16 Gauge construction\u003c\/p\u003e\u003cp\u003e350016ALUSG Tube Sight Glass for Visual Material Flow Inspection in industrial vacuum tubing and piping systems. Sight glasses help operators monitor product movement, confirm system flow, and support reliable operation in dust collection, pneumatic conveying, and industrial vacuum applications.\u003c\/p\u003e\u003cp\u003e Part numbers associated with these sight glasses include:\u003cbr\u003e350016ALUSG\u003cbr\u003e350011ALUSG\u003c\/p\u003e","brand":"HP Products","offers":[{"title":"Aluminum \/ 16","offer_id":42982760480864,"sku":"350016ALUSG","price":207.67,"currency_code":"USD","in_stock":true},{"title":"Aluminum \/ 11","offer_id":42982760513632,"sku":"350011ALUSG","price":175.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4601\/5072\/files\/pneumatic-conveying-sight-glass.png?v=1781030142"},{"product_id":"400016alusg-sight-glass","title":"400016ALUSG 4 Inch OD Tube Sight Glass","description":"\u003ch2\u003e4 Inch OD Tube Sight Glass\u003c\/h2\u003e\u003ch3\u003eVacuum Piping Accessories - Tube Sight Glass\u003c\/h3\u003e\u003ch4\u003eChoose from the Following Options for 400016ALUSG\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eMaterial Options:\u003c\/strong\u003e\u003cbr\u003eAluminum\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfiguration Options:\u003c\/strong\u003e\u003cbr\u003eTube Sight Glass for Visual Material Flow Inspection\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003cbr\u003eAvailable in 11 Gauge and 16 Gauge construction\u003c\/p\u003e\u003cp\u003e400016ALUSG Tube Sight Glass for Visual Material Flow Inspection in industrial vacuum tubing and piping systems. Sight glasses help operators monitor product movement, confirm system flow, and support reliable operation in dust collection, pneumatic conveying, and industrial vacuum applications.\u003c\/p\u003e\u003cp\u003e Part numbers associated with these sight glasses include:\u003cbr\u003e400016ALUSG\u003cbr\u003e400011ALUSG\u003c\/p\u003e","brand":"HP Products","offers":[{"title":"Aluminum \/ 16","offer_id":42982760546400,"sku":"400016ALUSG","price":213.81,"currency_code":"USD","in_stock":true},{"title":"Aluminum \/ 11","offer_id":42982760579168,"sku":"400011ALUSG","price":183.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4601\/5072\/files\/pneumatic-conveying-sight-glass.png?v=1781030142"},{"product_id":"500014alusg-sight-glass","title":"500014ALUSG 5 Inch OD Tube Sight Glass","description":"\u003ch2\u003e5 Inch OD Tube Sight Glass\u003c\/h2\u003e\u003ch3\u003eVacuum Piping Accessories - Tube Sight Glass\u003c\/h3\u003e\u003ch4\u003eChoose from the Following Options for 500014ALUSG\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eMaterial Options:\u003c\/strong\u003e\u003cbr\u003eAluminum\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfiguration Options:\u003c\/strong\u003e\u003cbr\u003eTube Sight Glass for Visual Material Flow Inspection\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003cbr\u003eAvailable in 11 Gauge and 16 Gauge construction\u003c\/p\u003e\u003cp\u003e500014ALUSG Tube Sight Glass for Visual Material Flow Inspection in industrial vacuum tubing and piping systems. Sight glasses help operators monitor product movement, confirm system flow, and support reliable operation in dust collection, pneumatic conveying, and industrial vacuum applications.\u003c\/p\u003e\u003cp\u003e Part numbers associated with these sight glasses include:\u003cbr\u003e500014ALUSG\u003cbr\u003e500011ALUSG\u003c\/p\u003e","brand":"HP Products","offers":[{"title":"Aluminum \/ 14","offer_id":42982760611936,"sku":"500014ALUSG","price":235.55,"currency_code":"USD","in_stock":true},{"title":"Aluminum \/ 11","offer_id":42982760644704,"sku":"500011ALUSG","price":248.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4601\/5072\/files\/pneumatic-conveying-sight-glass.png?v=1781030142"},{"product_id":"600011alusg-sight-glass","title":"600011ALUSG 6 Inch OD Tube Sight Glass","description":"\u003ch2\u003e6 Inch OD Tube Sight Glass\u003c\/h2\u003e\u003ch3\u003eVacuum Piping Accessories - Tube Sight Glass\u003c\/h3\u003e\u003ch4\u003eChoose from the Following Options for 600011ALUSG\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eMaterial Options:\u003c\/strong\u003e\u003cbr\u003eAluminum\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfiguration Options:\u003c\/strong\u003e\u003cbr\u003eTube Sight Glass for Visual Material Flow Inspection\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003cbr\u003eAvailable in 11 Gauge and 16 Gauge construction\u003c\/p\u003e\u003cp\u003e600011ALUSG Tube Sight Glass for Visual Material Flow Inspection in industrial vacuum tubing and piping systems. Sight glasses help operators monitor product movement, confirm system flow, and support reliable operation in dust collection, pneumatic conveying, and industrial vacuum applications.\u003c\/p\u003e\u003cp\u003e Part numbers associated with these sight glasses include:\u003cbr\u003e600011ALUSG\u003c\/p\u003e","brand":"HP Products","offers":[{"title":"Aluminum \/ 11","offer_id":42982760677472,"sku":"600011ALUSG","price":292.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4601\/5072\/files\/pneumatic-conveying-sight-glass.png?v=1781030142"},{"product_id":"450016alusg-sight-glass","title":"450016ALUSG 4-1\/2 Inch OD Tube Sight Glass","description":"\u003ch2\u003e4-1\/2 Inch OD Tube Sight Glass\u003c\/h2\u003e\u003ch3\u003eVacuum Piping Accessories - Tube Sight Glass\u003c\/h3\u003e\u003ch4\u003eChoose from the Following Options for 450016ALUSG\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eMaterial Options:\u003c\/strong\u003e\u003cbr\u003eAluminum\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfiguration Options:\u003c\/strong\u003e\u003cbr\u003eTube Sight Glass for Visual Material Flow Inspection\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e\u003cbr\u003eAvailable in 11 Gauge and 16 Gauge construction\u003c\/p\u003e\u003cp\u003e450016ALUSG Tube Sight Glass for Visual Material Flow Inspection in industrial vacuum tubing and piping systems. Sight glasses help operators monitor product movement, confirm system flow, and support reliable operation in dust collection, pneumatic conveying, and industrial vacuum applications.\u003c\/p\u003e\u003cp\u003e Part numbers associated with these sight glasses include:\u003cbr\u003e450016ALUSG\u003cbr\u003e450011ALUSG\u003c\/p\u003e","brand":"HP Products","offers":[{"title":"Aluminum \/ 16","offer_id":42983069646944,"sku":"450016ALUSG","price":268.58,"currency_code":"USD","in_stock":true},{"title":"Aluminum \/ 11","offer_id":42983069679712,"sku":"450011ALUSG","price":198.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4601\/5072\/files\/pneumatic-conveying-sight-glass.png?v=1781030142"}],"url":"https:\/\/proairsupply.com\/collections\/tube-sight-glasses.oembed","provider":"ProAirSupply","version":"1.0","type":"link"}