Brass Fluid Level Sight Glass, M16 x 1.5 Thread

This brass fluid level sight glass helps equipment operators visually check fluid levels in pressurized oil tanks and systems operating under subpressure. Its clear viewing glass supports routine level monitoring without opening the system.

The sight glass features natural glass and an M16 x 1.5 thread. An O-ring seals around the perimeter rather than at the glass face edge, with the seal retained in a groove to help prevent loss or extrusion during tightening. The outside diameter is designed to match mounting holes for tube fittings according to DIN 3865. Maximum heat resistance is 100°C (212°F). For wall thicknesses below 4 mm, use with a compatible GN 543.1 nut.

Key Features:

• Natural glass viewing window: Provides a stable, scratch-resistant surface for checking fluid levels.
• M16 x 1.5 thread: Supports installation in compatible threaded mounting locations.
• Peripheral O-ring seal: Helps maintain sealing performance when axial pressure is present.
• Retained seal groove: Helps keep the seal in place and reduces the chance of extrusion during tightening.
• 100°C maximum heat resistance: Supports use in applications with temperatures up to 212°F.

Choose this threaded brass sight glass for fluid-level visibility in compatible oil tank installations where a perimeter-sealed glass window is needed.

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