The R.W. Beckett King® Float Type Tank Gauge (Model 14504) is a mechanical liquid-level gauge designed for monitoring fuel levels in residential and commercial oil storage tanks. It uses a float-and-link mechanism that rises and falls with the fuel level and displays the approximate tank level through a clear indicator vial at the top of the tank. It is commonly used in heating-oil tanks for furnaces and boilers.

R.W. Beckett King® Float Type Tank Gauge

Model: 14504

General Description

The Beckett King® 14504 is a leak-proof vertical tank gauge designed to provide a simple visual indication of the fuel level inside above-ground storage tanks. The float assembly inside the tank rises with the oil level and moves a calibrated indicator visible in a clear vial at the top of the unit. This allows technicians or homeowners to quickly determine when the tank needs refilling.

Technical Specifications

Manufacturer: R.W. Beckett Corporation
Product Series: King® Float Type Tank Gauge
Model / MPN: 14504
UPC: 045558092732
Product Type: Mechanical float-type tank level gauge

Dimensions

• Gauge Length: approx. 42–44 in (1067–1118 mm)
• Nominal Connection Size: 1-1/2 in × 2 in
• Connection Type: Male NPT (MNPT) threaded connection
• Tank Mounting: Top-mounted on tank fitting

(Length corresponds to typical vertical oil tank depth.)

Weight

• Approx. 0.7 – 1.2 lb (0.3 – 0.5 kg) depending on configuration and packaging.

Construction & Materials

• Float: One-piece Nitrophyl® molded float resistant to petroleum fuels
• Linkage: Tangle-free solid-link hinge mechanism
• Bushing: Rust-proof zinc (Zamak) bushing
• Indicator Vial: Impact-resistant clear plastic with UV inhibitors
• Seals: Double O-ring sealing system for leak prevention

Key Features

• Leakproof design prevents fuel vapor leakage around the gauge.
• Large, easy-to-read indicator shows tank level through a transparent vial.
• Break-resistant plastic vial with UV inhibitors for long service life.
• Tangle-free solid-link float arm ensures smooth movement even with tank vibration.
• Petroleum-resistant float material compatible with heating oil and similar fuels.
• Removable float assembly allows tank measurement with a dipstick without removing the tank bushing.

Operating Principle

1. A Nitrophyl float rests on the surface of the oil inside the tank.
2. As the oil level rises or falls, the float moves vertically.
3. The float motion is transmitted through a linkage arm to the top indicator.
4. The indicator inside the clear vial moves to display the approximate tank level (Full, 3/4, 1/2, 1/4, Empty).

This purely mechanical system requires no electricity and operates continuously while the tank contains liquid fuel.

Applications

The 14504 gauge is commonly used on:

• Residential heating-oil tanks
• Commercial oil storage tanks
• Boiler and furnace fuel tanks
• Diesel or petroleum-based fuel tanks (non-pressurized)

It is specifically intended for vertical tanks approximately 42–44 inches deep.

Compatibility

Compatible with most standard vertical heating-oil tanks equipped with:

• 1-1/2 in or 2 in NPT tank openings
• Tank depths around 42–44 inches

Common tank types:

• Above-ground residential heating oil tanks
• Basement furnace oil tanks
• Small commercial fuel storage tanks

Safety & Compliance

• Designed for petroleum fuel storage applications.
• Should be installed by a qualified technician or licensed contractor to ensure proper sealing and safe operation.

Summary:
The R.W. Beckett King® 14504 Float Gauge is a durable, mechanical fuel-level indicator designed for vertical heating-oil tanks around 42–44 inches deep. Its Nitrophyl float, corrosion-resistant fittings, and sealed indicator vial make it a reliable and maintenance-free solution for monitoring oil levels in residential and light commercial fuel storage systems.