Midland Industries 34031 Brass Pol Cap Fitting

Product Description

The MIDLAND INDUSTRIES 34031 is a brass POL cap fitting designed to seal and protect POL-type valve outlets and connections on LP gas equipment. Machined from brass, it features a 0.880-14 LH (left-hand) thread that matches standard POL thread specifications. This cap covers exposed POL fittings when a regulator or hose assembly is disconnected, preventing contamination and protecting the threads from damage. It is a compact, low-weight component at 0.18 pounds, suited for installation by licensed LP gas technicians and plumbers working on propane distribution systems, cylinders, and related equipment.

The 34031 is used wherever a POL outlet needs to be capped during transport, storage, or service intervals. Typical applications include LP gas cylinders, bulk storage tanks, and propane service equipment where an open POL connection requires a secure, thread-matched closure. The brass construction resists corrosion in outdoor and field-service environments. This fitting is appropriate for residential and light commercial propane installations handled by qualified gas service technicians.

Key Features

• Brass construction for corrosion resistance in LP gas service environments
• 0.880-14 LH thread matches standard POL valve outlet specifications
• Left-hand thread engagement consistent with POL safety convention
• Lightweight at 0.18 pounds for easy field handling and storage
• Protects POL threads and sealing surfaces when fitting is not in service

Compatibility

Designed as an OEM-style replacement or service cap for standard POL-threaded fittings and valve outlets commonly found on LP gas cylinders and propane distribution equipment.

Installation Notes

Installation and removal of LP gas fittings should be performed by a qualified gas technician in accordance with NFPA 58 and applicable local codes. Always close the cylinder or tank service valve and verify the system is fully depressurized before removing or installing any POL cap or fitting. POL threads are left-hand, so the cap tightens counterclockwise. Inspect threads for damage before installation and do not use thread sealant or PTFE tape on POL connections unless specified by the equipment manufacturer.