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 Glass, Borosilicate Fused to Metal Housing

Sight window 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. Fusing glass to metal creates a hermetically sealed single-piece part. The advantage of this construction is high strength of the glass, which ensures safety of operation, even during cycling operating temperatures common with equipment starts and stops. The part is easy to install, and has a long working life without maintenance.

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

Sight Glasses