Sanitary Union-Closure Vessel Sight Glass with Upright Cordless Tube Lamp (SGUL-11 / No.50046)

A circular union-retained sanitary vessel viewing port in 304 or 316L stainless steel with a weld-in base neck and an upright cylindrical wireless lamp mounted beside the lens.

Connection & closure	Butt-weld vessel neck × slotted union-nut viewing cover
Material options	304 (1.4301), 316L (1.4404)
Size range	DN65–DN150 (DIN); 2.5"–6" (Inch)
Body & lamp structure	Circular union-nut sight port with upright cylindrical wireless lamp on side bracket (no wiper)
Assembly form	Circular weld-neck vessel viewing port assembly

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Union-Retained Viewing Port and Upright Wireless Lamp

Model SGUL-11 is a circular vessel sight port consisting of a cylindrical weld-in base ferrules neck, a flat viewing lens, a slotted round union retaining nut, and an upright cylindrical wireless lamp mounted on a side bracket. Because the window has no central wiper penetrations, the full glass aperture remains unobstructed for illuminated visual inspection inside tanks, reactors, and sanitary process vessels.

No.50046 DIN and Inch Dimensional Tables

Unlike the generic tubular line-sight-glass text pasted into the lower series schedule, the base port reference drawing directly matches the SGUL-11 vessel port and tabulates neck diameter D, overall height including the upright lamp H, and weld-neck neck height.

• DIN series (5 sizes): DN65 (D = 70, H = 121.5, H1 = 31), DN80 (D = 85, H = 123.5, H1 = 33), DN100 (D = 104, H = 126.5, H1 = 37), DN125 (D = 129, H = 127.5, H1 = 38), and DN150 (D = 154, H = 133.5, H1 = 45).

• Inch series (5 sizes): 2.5" (D = 63.5, H = 122.5, H1 = 32), 3" (D = 76.2, H = 122.5, H1 = 32), 3.5" (D = 89, H = 123.5, H1 = 33), 4" small (D = 101.6, H = 124.5, H1 = 35), and 6" (D = 152.4, H = 132.5, H1 = 44).

Materials, Seals, and Thermal Limits

The metallic body is offered in 304 (1.4301) and 316L (1.4404) stainless steel. Available in a vacuum to 10 bar pressure range and distinguishes the base port temperature range (-10°C to 150°C) from the lighted union assembly limit (-10°C to 80°C).

Installation and Selection Checks

When welding the base neck onto a vessel head, allow at least height H (121.5 to 133.5 mm) above the nozzle for the upright lamp barrel and spanner access to the slotted union ring. Confirm lens glass material, gasket elastomer, and wireless lamp battery/charging specifications per order.