Weld-Mount Union Tank Viewing Port with Window-Mounted Hinged Lamp — product view

Weld-Mount Union Tank Viewing Port with Window-Mounted Hinged Lamp

A round sanitary tank sight glass assembly featuring a weld-in vessel neck, a slotted union ring closure, and a compact sight-glass light mounted on a hinged tilting bracket atop the viewing window. Offered in 304 (1.4301) and 316L (1.4404).

Body Material

304 (1.4301) / 304L / 316 / 316L (1.4404)

Tank Mounting Connection

Butt-Weld Vessel Neck with Slotted Union Nut Closure

Body Construction

Union-Closure Round Tank Viewing Port with Hinged Window-Mounted Lamp

Nominal Size Range

DN150 (series 3/4"–6")

Supported Standards

SMS, DIN, 3A, IDF, RJT, BS, ISO

Product overview

Union-Nut Tank Port and Hinged Window-Mounted Luminaire

Designed for sanitary tanks and vessels, this union-type sight glass welds onto the vessel head or shell and secures its circular viewing lens with a heavy-duty slotted round union nut. A compact stainless steel luminaire is mounted on a hinged bracket directly above the glass window, allowing the light angle to be adjusted into the vessel.

Material Grades and Seal Options

The housing is machined from 304 (1.4301) or 316L (1.4404) stainless steel (with SS304, SS304L, SS316, and SS316L listed in the specification table) and paired with silicone, EPDM, Viton, or NBR seals.

Nominal Size and Series schedule Scope Note

The specification table lists Specification: DN150 across SMS, DIN, 3A, IDF, RJT, BS, and ISO standards. Note that several rows in the series specification and body paragraphs (such as 360-degree inline flow viewing, 3/4"–6" sizes, and polycarbonate/acrylic tubing covers) are generic tubular sight-glass text carried over in the series documentation.

Ordering and Electrical Specification Notes

Remove the lamp assembly, glass lens, and elastomer gasket before welding the base ferrule onto the tank wall, and confirm nominal port diameter and luminaire power supply requirements when ordering.

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