BL301-2 Tank Top Weld Sight Light

BL301-2 Tank Top Weld Sight Light

The BL301-2 tank top weld sight light is a wired LED lighting assembly shown in Borlan Fluid’s 2025 catalog for a DN80 tank-top observation point. The catalog pairs a high-output lamp with a weld-type vessel connection, so light can be directed into a tank through the selected observation window. This page covers the tank-top form, not the separate BL301-2 bracket-mounted spotlight. Borlan Fluid can review the weld opening, viewing window and electrical configuration together before quotation.

How the Tank-Top Form Is Selected

For a new vessel opening, the lamp and observation point need to be selected as one installation. The BL301-2 catalog row lists a DN80 tank-top form and a welded connection. Before fabrication, check the vessel wall, weld preparation, available headroom, viewing position, cable route and access for inspection and maintenance. The photograph illustrates a product form; it does not establish the included glass, seals, power supply or any process rating for a particular order.

• Catalog form: BL301-2 tank-top sight light for a DN80 observation point.
• اتصال: weld-type arrangement in the 2025 catalog selection table; confirm the actual mating part and weld details.
• Lighting: externally supplied LED. The BL301-2 catalog family lists 12-24 V AC/DC options and a 15-30 W family range, but the ordered lamp rating must be checked separately.
• Electrical entry: the catalog describes a cable-end lead and notes a threaded-interface option for this form.

Actual Product Views

The catalog shows the same tank-top sight light from the illuminated face and the side. These views help identify the component during an enquiry; dimensions and supplied parts must still be checked against the final configuration.

DN80 Catalog Reference Dimensions

The dimensions below reproduce the DN80 tank-top BL301-2 row of the 2025 catalog, in millimeters. They must not be substituted with the separate BL301-2 bracket spotlight dimensions.

The catalog drawing also labels L2, but the numerical table does not give its value. Do not infer L2 from another model or drawing. Confirm the current approved drawing and weld interface for the selected assembly.

Electrical and Certification Check

Tell Borlan Fluid the available voltage, AC or DC source, desired lamp power, cable termination and installation environment. The catalog’s 15-30 W figure describes the BL301-2 product family; it is not proof that every wattage or tank-top assembly has the same approval. The available Chinese explosion-proof certificate CLEx22.7907 documents a DC 24 V, 20 W BL301-2 tested lamp and states that it may represent the same construction at DC 12-24 V and 15-20 W. That statement does not automatically cover AC operation, higher wattages, a different cable entry or every complete tank-top assembly. Request the current certificate and construction documents for the exact unit if hazardous-area use is required.

The electrical lamp specification alone does not establish the sight glass assembly’s pressure, temperature, vacuum, wetted-material or seal ratings. Those depend on the selected vessel opening and process conditions.

الأسئلة الشائعة

Is this the same product as the BL301-2 bracket spotlight?

No. This page describes the catalog’s tank-top DN80 weld-type form. The BL301-2 bracket-mounted spotlight is a separate external lamp beside an existing window.

Can the DN80 catalog dimensions be used to cut the vessel opening?

Use them for preliminary comparison only. Confirm the mating sight glass, weld preparation and current approved drawing before fabrication.

Does the certificate cover every BL301-2 option?

No. Its documented sample is DC 24 V, 20 W; the stated representative range is limited to the same construction at DC 12-24 V, 15-20 W. Check the ordered configuration and current certificate status.

Request a Tank-Top Sight Light Quote

Send the vessel drawing, DN80 opening or target size, process medium, operating pressure and temperature, required glass and seal, quantity, electrical supply, lamp power, cable details and any hazardous-area documentation requirement. Contact Borlan Fluid for a reviewed BL301-2 tank-top sight light proposal. Relevant product footage may be available on the official Borlan Fluid YouTube channel; ask us to identify footage matching your exact configuration.