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Metric Sight Glass

Metric sight glasses with male fittings conforming to ISO 6149-1 standard, (SAE 2244-1/DIN 3852, Part 3). The housings have metric straight threads to ISO 262. In other words, metric sight glasses are governed by ISO 6149-1 for the port details, and the threads are governed by Metric ISO 261 standard. The windows in these metric sight glasses are fused, bonded or sealed with a gasket within their metal housings. The part is easy to install, and has a long working life without maintenance. These sight windows are typically used for visual inspection, machine vision, optical sensors in use with all common hydraulic oils, refrigeration, water heaters and compressed air applications.

Metaglas, Herberts Industrieglas GmbH & Co. KG

Metric Threaded Sight Glasses, Borosilicate Fused to Metal Housing

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Sight windows with straight metric threads sealing with an O-ring. Female connection port conforming to DIN 3852 Type F. For visual inspection, machine vision, optical sensors, in use with all common hydraulic oils, refrigeration, water heaters, and compressed air applications.
Thread Aperture Dia. Housing Material Max Operating Temp. Max Operating Pressure Window Material Mfg P/N Encole P/N Price
M18 x 1.5 12.5 mm Hastelloy C-22 300 C 50 bar Borosilicate Met-61-M18x1.5H 781E1801 $ 398.80 each
M20 x 1.5 13 mm Hastelloy C-22 300 C 50 bar Borosilicate Met-61-M20x1.5H 781E1802 $ 459.75 each
M26 x 1.5 16 mm Hastelloy C-22 300 C 50 bar Borosilicate Met-61-M26x1.5H 781E1803 $ 515.80 each
M27 x 2 16 mm Hastelloy C-22 300 C 50 bar Borosilicate Met-61-M27x2H 781E1804 $ 538.98 each
M33 x 2 22 mm Hastelloy C-22 300 C 50 bar Borosilicate Met-61-M33x2H 781E1805 $ 575.90 each
M42 x 2 26 mm Hastelloy C-22 300 C 50 bar Borosilicate Met-61-M42x2H 781E1806 $ 649.47 each
M48 x 2 28 mm Hastelloy C-22 300 C 50 bar Borosilicate Met-61-M48x2H 781E1807 $ 698.54 each
M60 x 2 35 mm Hastelloy C-22 300 C 50 bar Borosilicate Met-61-M60x2H 781E1808 $ 754.41 each
M78 x 2 50 mm Hastelloy C-22 300 C 50 bar Borosilicate Met-61-M78x2H 781E1809 $ 795.84 each
M18 x 1.5 12.5 mm Duplex 2205 280 C 50 bar Borosilicate Met-61-M18x1.5S 781E18010 $ 195.04 each
M20 x 1.5 13 mm Duplex 2205 280 C 50 bar Borosilicate Met-61-M20x1.5S 781E18011 $ 223.70 each
M26 x 1.5 16 mm Duplex 2205 280 C 50 bar Borosilicate Met-61-M26x1.5S 781E18012 $ 275.80 each
M27 x 2 16 mm Duplex 2205 280 C 50 bar Borosilicate Met-61-M27x2S 781E18013 $ 314.65 each
M33 x 2 22 mm Duplex 2205 280 C 50 bar Borosilicate Met-61-M33x2S 781E18014 $ 356.40 each
M42 x 2 26 mm Duplex 2205 280 C 50 bar Borosilicate Met-61-M42x2S 781E18015 $ 394.70 each
M48 x 2 28 mm Duplex 2205 280 C 50 bar Borosilicate Met-61-M48x2S 781E18016 $ 418.25 each
M60 x 2 35 mm Duplex 2205 280 C 50 bar Borosilicate Met-61-M60x2S 781E18017 $ 456.75 each
M78 x 2 50 mm Duplex 2205 280 C 50 bar Borosilicate Met-61-M78x2S 781E18018 $ 498.20 each

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