ESL 53 LED Luminaire — Sight-Glass & Flow Indicator Light
ESL 53 LED luminaire — compact stainless-steel sight-glass light, IP65/IP67, 24 V, 500 lm, 18°/25° beam. Hinged bracket or flange adapter. Download datasheet.
Description
The ESL 53 LED luminaire is a compact stainless-steel sight-glass light designed for sight ports and visual flow indicators. It provides glare-free, high-contrast illumination (500 lm), IP65/IP67 protection, and flexible mounting via a hinged bracket or flange adapter.
- High output, compact size: ~500 lm from a 7 W LED with 18° or 25° beam options.
- Ready for process use: robust stainless steel body, IP65/IP67 for dust and water jet protection.
- Flexible mounting: hinged bracket included for DN25/DN40; flange adapters available for screw-type fittings (DN50+).
- Continuous operation: designed for 24/7 industrial use; optional switch or pushbutton variants available.
Technical summary (at a glance)
| Parameter | Value / Notes |
|---|---|
| Product | ESL 53-LED (Lumiglas / Lumistar) |
| LED / Power | 24 V AC/DC — 7 W; luminous flux ≈ 500 lm; colour temperature ≈ 6500 K. |
| Beam angle | 18° or 25° (select per model). |
| Mounting | Hinged bracket (included) or flange adapter for screw-type fittings (DN 50 / 65 / 80 part numbers available). Fits: DN25 (DIN 28120), DN40 (DIN 28121), flow indicators from DN25 upwards. |
| Protection | IP65 (dust-tight & water-jet) — per EN 60529 (see datasheet for full details). |
| Materials / Cable / Weight | Body: stainless steel 1.4404; Hinged bracket/adapters: stainless steel 1.4301; Cable: factory-fitted 3 m (3 × 0.75 mm²); Weight: ≈ 1.1 kg. |
| Variants | ESL 53-LED-KS (hinged bracket); ESL 53-LED-B (flange attachment / sterile version). Pushbutton & switch options available. See datasheet for part numbers. |
Download ESL 53-LED datasheet (PDF)
Request quote / CAD
Applications
- Visual flow indicators and sight glass ports
- Food, pharma, and chemical process vessels
- Laboratory mixers, bioreactors, and small tanks
Installation & servicing (short)
- Mount with a hinged bracket onthe cover flange, or use a flange adapter for screw-type sight glass units.
- Factory cable is 3 m — other lengths available on request.
- Disconnect power before maintenance. Do not look directly into the light source.
FAQ
- Q: Which nominal sizes does ESL 53 fit?
- A: DN25 (DIN28120), DN40 (DIN28121), visual flow indicators from DN25, screw-type fittings from DN50 with adapter.
- Q: What are the accessory part numbers for flange adapters?
- A: Flange adapter DN50 PN: 1356.027.00; DN65 PN: 1356.030.00; DN80 PN: 1356.031.00. See datasheet.
© Lumistar.







