Page 399 - DPL413 Complete Catalog for web_wm

Holedall Fittings
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397 DPL413 877.963.4966 • dixonvalve.com
Dixon Holedall stems and ferrules are specifically designed to be used together as a coupling system.
Due to differences in dimensions and tolerances, for safety reasons, do not use
other manufacturer's stems or ferrules with Dixon Holedall products.
Holedall External Swage Coupling System
The Holedall coupling system provides outstanding strength, durability and safety.
The Holedall system is a method of attaching couplings to hose utilizing a progressive swage. The patented Holedall
couplings include a Holedall stem and a specially engineered ferrule. The hydraulic swaging of the coupling to the hose
is accomplished by pushing the ferrule through a die which reduces the ferrule OD, thus providing a 360° uninterrupted
compression band around the hose.
A hydraulic ram is the only piece of machinery necessary to accomplish the coupling. Available in five different sizes - 15, 25,
50, 100 and 350 ton - these rams will accommodate dies and pushers of various sizes so that hoses up to 10" in diameter may
be coupled.
This multi-purpose, high pressure coupling system requires no bolts and results in a clean coupling with no protrusions. The
swaging operation is fast and hose of various lengths and different styles can be coupled. Ease of operation, flexibility and
economy make the Holedall method an unequalled assembly system.
The Holedall coupling:
• provides long-lasting efficiency and safety.
• available in stainless steel and carbon steel.
• furnished with pipe thread, plain end, grooved or flanged ends.
Streamlined, lightweight coupling consisting of ferrule and stem.
No protrusions to snag on equipment.
Cross-section of Holedall externally swaged assembly
Displacement of hose carcass
into flared portion of coupling
traps and seals hose end. ferrule
stem
hose ID
Note: do not use wrench or vice on ferrule.