Weld-Mount Tank Viewing Port with Tri-Clamp Retainer Closure
A circular sanitary tank viewing port combining a cylindrical butt-weld mounting neck with a Tri-Clamp hinged clamp ring and slotted top window retainer cap. Offered in SS304, SS304L, SS316, and SS316L across DN25–DN150 (1"–6") in the header and 1"–4" in the parameter table.
Metal Body Material | SS304 / SS304L / SS316 / SS316L |
|---|---|
Mounting & Closure | Butt-Weld Tank Neck with Tri-Clamp Hinged Clamp Closure |
Port Construction | Cylindrical Weld Ferrule Base, Flat Viewing Lens & Clamp-Retained Cap |
Scoped Size Range | DN25–DN150 (1"–6") |
Series Standards | SMS, DIN, 3A, IDF, RJT, BS, ISO |
Product overview
Welded Tank Neck and Quick-Release Clamp Closure
This clamp-type weld sight glass features a cylindrical weld-on tank nozzle terminated with a sanitary ferrule lip, a circular viewing lens with elastomer gasket, a slotted top bezel ring, and a heavy-duty single-pin wing-nut Tri-Clamp clamp. Once the base neck is welded onto a vessel top or manway cover, the glass and gasket can be opened rapidly via the wing nut without spanners.
Material Grades, Standards, and Scoped Sizes
Source parameters list SS304, SS304L, SS316, and SS316L construction supporting SMS, DIN, 3A, IDF, RJT, BS, and ISO standards. Header specifications list DN25–DN150 (1"–6"), while the parameter table cites 1"–4" and body text notes 3/4"–6" across the broader sight glass series.
Elastomer Seals and Template Table Note
Available gasket materials include silicone, EPDM, Viton, and NBR for food, dairy, beverage, and pharmaceutical vessels. Note that the series schedule in the series documentation also repeats generic inline tubular sight glass boilerplate (such as borosilicate/polycarbonate tubing and straight-way/cross structure).
Pre-Weld Disassembly and Ordering Notes
Loosen the wing-nut clamp and remove the top bezel, viewing glass, and gasket before butt-welding the base neck onto the vessel nozzle. Specify the required nominal diameter, standard, stainless steel grade, and seal elastomer when ordering.
Need a different size, connection or document?
Discuss your requirements
