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Brass quarter-turn ball valve with half-inch male pipe thread and three-eighths flare fitting

Legend Valve

Legend Valve 111-206 1/2 M x 3/8 FL T-566 1/4 Turn Oil Tank Ball Valve

SKU CH-7J0A-ZZK3Z

Quarter-turn ball valve with 1/2 MNPT male and 3/8 flare connections for oil tank shut-off

  • 1/4 turn operation speeds shut-off on oil tanks
  • 1/2 MNPT x 3/8 FL threads fit standard tank connections
  • T-566 model built for heating and HVAC systems
  • Legend Valve brand supplies professional-grade components
  • New condition ensures clean, unused sealing surfaces

Oil Tank Ball Valve 1/4 Turn

This quarter-turn ball valve controls oil flow in residential heating systems. The 1/2 inch male NPT inlet connects to tank fittings while the 3/8 inch flare outlet joins supply lines. Installers and maintenance technicians use it for positive shut-off during service.

1/2 MNPT by 3/8 Flare Interface

The male pipe thread seals directly into a tank port without an adapter. The flare connection requires a matching copper or steel tube nut for a metal-to-metal seal. Both ends conform to standard HVAC threading so no proprietary tools are needed.

T-566 Model Capacity

The valve handles typical No. 2 fuel oil pressures found in domestic tanks. It is not rated for high-pressure hydraulic circuits or gaseous fuels. The 1/4 turn operation provides full flow when open and reliable isolation when closed.

Highlights

  • 1/4 turn operation speeds shut-off on oil tanks
  • 1/2 MNPT x 3/8 FL threads fit standard tank connections
  • T-566 model built for heating and HVAC systems
  • Legend Valve brand supplies professional-grade components
  • New condition ensures clean, unused sealing surfaces

Specifications

BrandLEGEND VALVE

Questions about this item

Which size combination should I pick for my oil tank line — 1/2 MNPT by 3/8 FL?

Choose the 1/2 MNPT by 3/8 FL configuration when your tank fitting has a half-inch male pipe thread and the supply line uses a three-eighths flare connection.

What does the T-566 quarter-turn ball valve actually do once installed on the tank?

It gives positive on-off control of heating oil flow to the furnace or boiler with a short handle throw.

Does the 1/2 MNPT by 3/8 FL thread pattern meet a specific industry standard?

The male NPT and flare threads follow common plumbing dimensions for residential oil-heating systems.

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