Crimping
McGill Hose & Coupling is experienced in the design and fabrication of crimped assemblies. In many cases crimping uses lower-cost materials and is an easier, more efficient assembly process. Crimped assemblies are high quality and repeatable. They look better than clamps and have the following unique features and benefits:
- Provides precisely measured, repeatable assemblies
- Allows for higher working pressures than band clamps
- Improves "dragability"… low profile, no sharp edges, reduces weight
- Ferrules interlock with couplings/fittings, offering the ultimate in hose retention
- Ferrules and sleeves provide a neat, simple, attractive hose assembly system
Glossary of Crimping Terms
Crimp chart: A chart designed to assist in determining the crimp spec, which includes allowance for serration style, fitting, and ferrule/sleeve O.D. and design.
Crimp spec (or specification): The outside diameter of the ferrule/sleeve after assembling and crimping.
Cut-slots: Notches cut into the turned-in end of a ferrule that allow the interlock portion to crimp straight down into the fitting interlock without opening outward during crimping.
Ferrule: A tube-like product with one end turned in so as to affect an interlock into a groove on a matting fitting or coupling.
Ferrule length: The overall length of the ferrule as measured from the turned-in end to the open end.
Ferrule/Sleeve I.D.: The inside bowl diameter of the ferrule; the inside diameter of the sleeve; the inside diameter of either where the hose is placed.
Gauge: The thickness of the ferrule/sleeve material.
Interlock groove: A groove designed into the fitting/coupling to accept the turn-in end of the ferrule.
Shank length: The hose barb area measured from the end of the fitting to the interlock groove.
Sleeve: The tube-like product with no interlock provisions.
Turn-in: The interlocking end of the ferrule.