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Sight Windows

Jacoby-Tarbox is our brand for sight windows. We take care of sizing, selection, supply, spare parts and service. Jacoby-Tarbox →

Sight windows and sight glass fittings for vessels and reactors, including lit and wiped versions.

Your request

Add this to your request. We come back with a quotation or the right part.

We will ask for: Design pressure, Design temperature, Medium, Vessel code, Tag number, Serial number.

Models

Connection

Hygienic

Fits sizeDNPressurebar

9 of 9 models

Bolt-on2

Jacoby-Tarbox 5800 bolt-on UniGlas sight window

Full ASME rated bolt-on sight window: a UniGlas fused window and retainer that turn any ASME B16.5 flange or studding outlet into a viewing port, 1" to 10", Class 150, 300 and 600.

Jacoby-Tarbox 5005-DW security sight window

Bolt-on dual window security sight window for ANSI flanges and studding outlets, 2" to 8", Class 150, 300 and 600 (higher ratings on request), omni-positional.

Weld-on3

Jacoby-Tarbox 5200-PVQ / 5300-PVQ ASME VIII weld-on sight window

Pressure vessel quality weld pad sight windows to ASME Section VIII: circular 5200-PVQ in sizes #2 to #12 for 150, 300 and 600 psi, and obround 5300-PVQ views 1 x 6" to 4 x 24" for 150 psi and 500 °F. FM approved dual window versions.

Jacoby-Tarbox 5200 commercial weld pad sight window

Weld pad sight window for normal service to 150 psig (10.3 bar) on tanks and non-ASME vessels, sizes #2 to #8, flat, cylindrical or spherical pad, omni-positional.

Jacoby-Tarbox W-5000 weld neck sight window

Omni-positional weld neck sight window for welding to pipe ends or into tanks and vessels, 1" to 6", normal service to 150 psig (10.3 bar).

Threaded1

Jacoby-Tarbox S-5100 / S-5400 threaded sight window

Threaded sight windows for viewing in any position: S-5100 female threaded 1" to 6" and S-5400 male NPT 1" to 3" with two borosilicate windows, 150 psig (10.3 bar) up to 500 °F.

Accessories2

Jacoby-Tarbox drop-in spray ring for flange-mounted sight windows

316 SS spray ring that drops in against a flange-mounted sight window and directs a cleaning liquid or gas across the glass, 2" to 10", ASME Class 150, 300 and 600, 1/4" NPT supply.

Jacoby-Tarbox Phaeton XTL / SL explosion-proof LED sight glass lights

LED lights for hazardous areas that clip onto sight windows and sight flow indicators: Phaeton XTL 4" and 6" view-through tank lights and the 2" Phaeton SL for indicators 1/4" to 3", explosion-proof power supply with intrinsically safe output.

Hygienic1

Jacoby-Tarbox Uni-San hygienic sight window

One-piece hygienic sight window with Type 1 borosilicate glass fused into a duplex or Hastelloy ring, clamps to any hygienic ferrule, 1/2" to 12", up to 360 psig (25 bar), −60 °C to 300 °C, 10 Ra µin finish.

Not seeing the size, connection or rating you need? Most of these models are built to order and our suppliers' engineers adapt them. Send us what you have and we work it out. Send us your requirement →