Sight Glasses

Category Overview

Sight glasses are critical components in refrigeration and air conditioning systems that allow the condition of the refrigerant in the liquid line to be monitored visually and the moisture level in the system to be tracked by a colour change. Installed in the liquid line between the condenser outlet and the expansion valve, these small but indispensable parts show instantly whether the refrigerant charge in the circuit is sufficient, whether there is air or moisture in the system and whether the filter drier is working properly. In this section, which sits under the Refrigeration Spare Parts parent category at Yedepa.com, you can find sight glasses in the different diameters and connection types you may need for commercial refrigeration, industrial chiller, cold storage and air conditioning applications.

Products You Can Find in This Category

In the Yedepa.com sight glass category, you can find products from the sector's leading brands Danfoss and Sanhua in stock. With solder (brazed) and flare connection options, models are available to suit all common copper tube sizes from 1/4" to 5/8". Some of the featured products in this category are:

• Sanhua SYJ06H11 Sight Glass 1/4" Solder — An ideal, economical solution for small-capacity refrigeration circuits and split air conditioner applications.
• Danfoss 014L0183 SGP 12S N — 1/2" Solder — "N" type model with moisture indicator, preferred in medium-capacity commercial refrigeration units.
• Danfoss 014L0182 SGP 10S N — 3/8" Solder — The size most commonly used in cold rooms and display cabinets, durable and long-lasting.
• Danfoss SGN 10 — Flare 3/8", N Type with Moisture Indicator, 35 bar MWP (014-0162) — Flare connection solution for easy removal and servicing.
• Danfoss 014L0184 SGP 16S N — 5/8" Solder — Large-diameter model suitable for high-capacity chillers and industrial systems.

Selection Criteria and Tips

When choosing the right sight glass, attention should first be paid to the liquid line tube diameter of the system (1/4", 3/8", 1/2", 5/8") and the connection type. If brazing is possible on site, solder type (S - solder) models are preferred; if easy removal and refitting is required, flare type models are chosen. In "N" type models (with moisture indicator), the colour change shows the moisture level in the system: the indicator is green in a dry system and turns yellow in a wet system; in this case the filter drier must be replaced. In addition, suitability for the working pressure (for example 35 bar MWP in the Danfoss SGN series) and the refrigerant used (R134a, R404A, R410A, R32 etc.) should be checked. During installation, the glass of solder models should be cooled with a wet cloth to protect it from excessive heat; for flare models, the torque values should be observed.

Sight Glasses at Yedepa.com

At Yedepa.com, so that technicians, refrigeration engineers and service teams do not lose time in the field, we list Danfoss and Sanhua brand sight glasses with their original product codes (014L0182, 014L0183, 014L0184, 014-0162, SYJ06H11 etc.). In this way, you can search using the code on the label of your old part and directly find the equivalent or the exact same part. All products are shipped from stock throughout Turkey, and invoicing and credit account solutions are offered for our B2B customers. For your refrigeration spare part needs, Yedepa.com is your reliable supply address for OEM-quality products and technical information support.