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SAE Sight Glass
SAE J514 sight glasses with straight thread O-ring boss. The window is bonded or fused into a housing forming a single-piece part requiring no maintenance during its lifetime. These sights make a hermetic seal with an O-ring fit in the groove between the port and the sight glass housing. The port is typically machined in using a porting tool conforming to SAE J1926-1. In other words, the sight glass boss follows the SAE J514 standard, while the port follows SAE J1926-1. Porting tools are available from a number of machine tool suppliers. These sights can be installed and uninstalled with the same O-ring several times without loosing the hermetic seal. Ideal for quick installations. SAE sights come in a variety of materials. Windows can be made from crystalline quartz, fused quartz, sapphire, borosilicate. For extended transmission range the windows are available in Zinc Selenide, ZnSe, for IR, or high-purity UV quartz. Metal housings are typically made from stainless steel.
Encole
SAE Straight Thread Sight Glass, Quartz Window, 17-4PH Steel Housing

Sight window with SAE straight threads for sealing with an O-ring. For visual inspection, machine vision, laser sensors, in use with all common hydraulic oils, refrigerants, pharmaceutical processing equipment, paper & pulp plants, marine exterior, oil wells, feedwater heaters. Resists most oxidizing acids and salt sprays.17-4PH housing has a finish of 32 RMS providing smooth surfaces reducing residues or particle contaminants. Quartz window is sealed into the housing with non-outgassing quartz-filled bond forming a single-piece part. This sight glass has a long working life under severe temperature swings and prolonged exposures to UV light. Required port to ISO 11926-1 (SAE J1926-1). Male boss conforms to: MS16142 for use with O-ring AS568A. The O-ring is sold separately.
SAE-Dash | Aperture Dia. | Max Operating Temp. | Thread | Housing Material | Max Operating Pressure | Window Material | Mfg P/N | Encole P/N | Price | |
---|---|---|---|---|---|---|---|---|---|---|
SAE-8 | 0.38 inch | 65 C | 3/4-16 | 17-4PH | 210 bar | Quartz | 100528 | 782E701 | $ 348.36 each | |
SAE-10 | 0.46 inch | 60 C | 7/8-14 | 17-4PH | 210 bar | Quartz | 100530 | 782E702 | $ 367.80 each | |
SAE-12 | 0.64 inch | 55 C | 1-1/16-12 | 17-4PH | 210 bar | Quartz | 100532 | 782E703 | $ 427.35 each | |
SAE-16 | 0.86 inch | 45 C | 1-5/16-12 | 17-4PH | 210 bar | Quartz | 100534 | 782E704 | $ 464.68 each | |
SAE-20 | 1.18 inch | 40 C | 1-5/8-12 | 17-4PH | 210 bar | Quartz | 100536 | 782E705 | RFQ | |
SAE-24 | 1.38 inch | 40 C | 1-7/8-12 | 17-4PH | 210 bar | Quartz | 100538 | 782E706 | RFQ | |
SAE-32 | 1.80 inch | 35 C | 2-1/2-12 | 17-4PH | 210 bar | Quartz | 100540 | 782E707 | RFQ |