Oil Sights

Product Code: Oil Sights

Oil Level Gauge – Compact Brass & Heat-Resistant Glass Assembly

The John Moncrieff Ltd Oil Level Gauge is a simple yet robust brass and heat-proof glass tubular level gauge providing continuous level indication, primarily for oil tanks and small reservoirs. Designed for easy installation and long-term clarity, it’s the reliable choice for everyday industrial service.

As standard, the gauge is fitted from the base, though a double-banjo connection top and bottom is available for greater flexibility. For alternative fittings, refer to the data sheet below — or contact us to prepare a custom adaptor. The unit operates on an open circuit and features a brass guard protecting the sight glass from accidental impact while maintaining a clear visual.

Perfect for small tanks where a quick, constant visual on oil level is essential. For cleaning, simply remove the top cap — the tubes can be withdrawn easily, and replacement glass tubes are available on request.

Looking for a compact alternative? See our Mini Gauge for similar low-volume applications.

Example Applications

Water
Coolant
Chemicals
Lubricant oil
General liquid storage

Key Features

Design: Simple, robust brass construction with protective guard.
Delivery: 1–2 weeks (standard configurations).
Circuit: Closed circuit as standard; open circuit available.
Fittings: ⅛″ to ½″ BSP (NPT on request).
Mounting Options: Vertical, lock-nut, or banjo fitting styles.
Tubing: Borosilicate heat-resisting glass tube.
Temperature Rating: Up to 90 °C.
Pressure Rating: Up to 2 bar.
Maintenance: Easy to clean; removable cap and tube.
Drain Plug: Included as standard.
In-Line Version: Available for direct system integration.

Quality & Support

ISO 9001 Certified: Manufactured under a BSI-audited quality system.
Documentation: Material certificates and inspection reports available upon request.
Engineering Assistance: Support for adaptor design, connection sizing, and system integration.

The Oil Level Gauge combines simplicity, safety, and reliability — a proven visual indicator for small tanks and low-pressure systems where clarity and durability count.