1 1/2 M 520-H W/NST THREAD

Intended for fuel delivery service; commonly used in the transfer of fuel to homes, airplanes, ships, etc and recommended for discharge and suction service

• Couplings are compact, light and streamlined to eliminate catching on curbs and shrubs
• Male has octagonal facets for tightening with a wrench
• The stem is expanded to nominal ID of hose for a rigid, uniform, full-flow area
• Couplings are pre-lubricated for assembly
• Designed for internal expansion only
• Stems are machined from bar stock or solid brass forgings
• The working pressure of the 520-H fitting varies with the size of the fitting, the size and construction of the hose and the media being conveyed
• Hand and electrically operated installation equipment is available
• Do not interchange with other manufacturer's fittings
• Dixon® Holedall stems and ferrules are specifically designed to be used together as a coupling system
• Do not use a wrench or vice on ferrule
• Holedall couplings, regardless of coupling style, are never to be used for steam service at any pressure
• Holedall fittings are not to be used with cable reinforced high-pressure hose, 4 or 6 braid wire hydraulic hose or any other service not listed in the recommendations
• Strict adherence to ferrule OD range (Internally Expanded) for each hose end to be assembled is essential for satisfactory performance
• Hose service working pressure (including surges and spikes) is never to exceed the maximum recommended working pressure for the fitting
• The assembly's (hose + coupling) maximum working pressure is the lesser of the hose rated working pressure or the coupling rated working pressure
• Media being transported through the hose should be compatible with the stem material
• Compatibility of ferrule material with the environment in which it will be used is recommended
• For applications other than the ones list, please consult Dixon
• Warning: this product contains a chemical known to the State of California to cause birth defects or other reproductive harm