Weld-Mount Union-Closure Tank Viewing Port with Manual Wiper — product view

Weld-Mount Union-Closure Tank Viewing Port with Manual Wiper

A circular weld-mount sanitary tank viewing port in 304 (1.4301) or 316L (1.4404) stainless steel combining a slotted round union-nut glass retainer with a central through-glass manual wiper handle. Listed at DN150 in the parameter table and paired with union-port reference tables covering DN65–DN150 (DIN) and 2.5"–6" (Inch).

Metal Body Material

304 (1.4301) / 316L (1.4404)

Mounting & Closure

Butt-Weld Tank Neck with Slotted Round Union Nut

Wiper Operation

Manual Center-Shaft Wiper Handle with Internal Blade

Port Construction

Union-Nut Viewing Port with Through-Glass Manual Wiper

Scoped Size Range

DN65–DN150 (2.5"–6")

Supported Standards

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

Product overview

Slotted Union-Nut Viewing Port with Central Manual Wiper

This union sight glass with wiper (model SGUW-11) combines a cylindrical butt-weld vessel mounting neck and a slotted round union nut with a central through-glass rotary wiper shaft. Turning the exterior handle sweeps the internal wiper blade across the inner face of the glass disc to clear condensation, foam, or splash droplets.

Scoped Size Listings and Embedded No.50046 Reference Drawing

The series parameter table lists Specification DN150 (while generic text mentions 3/4"–6"). Note that the embedded drawing in the series documentation is No.50046 ('Sight glass with wireless light'), which provides base union-neck diameters D and body heights heading for DIN sizes DN65–DN150 (D 70–154 mm, H1 31–45 mm, total height with wireless light H 121.5–133.5 mm) and Inch sizes 2.5"–6" (D 63.5–152.4 mm, H1 32–44 mm, H 122.5–132.5 mm).

Stainless Steel Grades and Seal Elastomers

Available in 304 (1.4301) and 316L (1.4404) stainless steel (with SS304L and SS316 also listed in the table) and fitted with silicone, EPDM, Viton, or NBR seals.

Pre-Weld Disassembly and Ordering Notes

Unscrew the slotted union nut and remove the glass lens, wiper assembly, and elastomer seals before welding the base neck onto the vessel wall. Confirm the exact nominal port diameter and wiper handle style when ordering.

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