L056501 - 25mm Gas-Thru Dinse Connector Plug for TIG Torches

Technical Overview of the LDTSI-917F Dinse Plug

The Dinse Plug LDTSI-917F 25Mm Flow Thru is a specialized electrical connector designed for the welding industry, specifically tailored for TIG welding applications where gas integration is required. This connector adheres to the standard "small Dinse" sizing, technically known as the 10-25 standard, which typically features a pin diameter of approximately 9mm. It is engineered to handle the current loads associated with 25mm² welding cables, making it suitable for light to medium-duty industrial applications and portable inverter welding power sources.

The defining characteristic of this model is its "Flow Thru" architecture. Unlike standard solid-core cable plugs used strictly for stick welding leads or ground clamps, this unit features a hollow internal channel. This design permits shielding gas (such as Argon) to flow directly from the machine's solenoid output, through the center of the connector, and into the attached TIG power cable. This integration is critical for single-piece power cable setups (often found on air-cooled 9 and 17 series torches) where the power conductor and gas delivery share the same hose.

Constructed from high-grade brass alloy, the plug offers excellent electrical conductivity, minimizing resistance and heat buildup at the connection point. The exterior is shielded by a robust, non-conductive rubber boot that provides essential insulation and strain relief for the cable entry. The twist-lock mechanism ensures a positive mechanical and electrical bond, preventing accidental disconnection during operation. This component is an essential spare or replacement part for maintaining the integrity of TIG welding setups that utilize the 25mm international standard socket.