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Dixon® Permanently Attached Petroleum Coupling, 520-H Series, Connection Type 1: NPSH, Gender 1: Female, Connection Size 1: 1 in, Connection Type 2: NPSH, Gender 2: Female, Connection Size 2: 1 in, Brass, For Use With: Internally Expanding Permanent Coupling-Scovill Style, Dimensions: 2-5/16 in L
California residents see Prop 65 WARNINGS
| Fitting Type | : | Coupling |
| Series | : | 520-H |
| Connection 1 | : | 1 in NPSH |
| Connection Type 1 | : | NPSH |
| Gender 1 | : | Female |
| Connection Size 1 | : | 1 in |
| Connection 2 | : | 1 in NPSH |
| Connection Type 2 | : | NPSH |
| Gender 2 | : | Female |
| Connection Size 2 | : | 1 in |
| Material | : | Brass |
| For Use With | : | Internally Expanding Permanent Coupling-Scovill Style |
| Dimensions | : | 2-5/16 in L |
- Female 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 compact, light and streamlined to eliminate catching on curbs and shrubs
- Couplings are pre-lubricated for assembly
- Stems are machined from bar stock or solid brass forgings
Applications: For discharge and suction service and commonly used in the transfer of fuel to homes, airplanes, ships, internal expansion only
Safety Notes:
- Do not interchange with other manufacturer's fittings.
- Designed for internal expansion only.
- 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.
- Consult Dixon® for recommendations on usage.
- 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.
- Consult the Compatibility Chart or the Dixon® factory for material compatibility.
- For applications other than the ones list, please consult Dixon®.
Catalog/Catalog Cut Sheet
