W-4 - 1-1/4 Inch Acme Propane Washer - 100 Pack

Technical Overview of the Western Enterprises W-4 Washer

The Western Enterprises W-4 is a specialized sealing washer designed for use with 1-1/4" Acme threads, a standard connection type found in Liquid Petroleum Gas (LPG) applications. Manufactured from high-grade nylon, this washer is engineered to provide a robust seal between mating brass components, effectively preventing gas leakage in high-pressure and low-pressure propane systems. The 1-1/4" Acme thread is ubiquitous in the propane industry, commonly utilized on forklift cylinder liquid withdrawal valves, fill valves, and bulk transfer lines. Ensuring the integrity of these connections is paramount for industrial safety and operational efficiency.

Nylon is selected as the material of choice for the W-4 due to its favorable mechanical properties and chemical resistance. Unlike rubber elastomers that may degrade or swell significantly when exposed to certain hydrocarbons over long periods, nylon maintains its dimensional stability and structural rigidity. This allows the washer to withstand the torque applied during the connection process without extruding or tearing, while still possessing enough compliance to conform to minor surface irregularities on the sealing face. This balance of hardness and flexibility is critical for maintaining a gas-tight seal through repeated connection cycles, although best practice dictates regular inspection and replacement.

This product is supplied in a bulk bag of 100 units, designated by the SKU W-4. This packaging configuration is specifically targeted at MRO (Maintenance, Repair, and Operations) environments where propane cylinder exchange and maintenance are frequent activities. Facilities managing fleets of propane-powered forklifts or operating bulk filling stations require a steady supply of these consumable components. The W-4 ensures that technicians can immediately replace worn, cracked, or missing washers during routine checks, thereby maintaining compliance with safety standards and preventing hazardous gas leaks.

Compatibility is a key feature of the W-4. It is designed to fit standard 1-1/4" Acme fittings manufactured by Western Enterprises as well as compatible fittings from other industry-standard brands. Whether used in a filling depot, on a delivery truck, or within a manufacturing plant's fuel storage area, the W-4 provides the assurance of a quality seal backed by Western Enterprises' reputation for excellence in gas control equipment.