Page 63 - 2010-2022 hose manufactureing ability and guide

E. Welding Hose Couplings - These couplings
have machined brass shanks with right and
left-handed threads to prevent mixing up the
acetylene and oxygen lines.

Figure 5-24. Welding Hose Couplings
Figure 5-21. Constant Tension Clamp
F. Fire Hose Couplings - For fire hose,
C. Gasoline Pump Hose Couplings - Similar to expansion ring type couplings are used.
an internally expanded full flow coupling, The bowl of the coupling fits over the hose
this type is primarily used for gasoline end and the hose is forced against the inner
pump hose. surface of the bowl by an expansion ring.
This type of coupling is reusable, but

Figure 5-22. Gasoline Pump Hose Full
Flow Coupling

D. Coaxial Gasoline Pump Couplings - This
type of coupling accommodates a hose Figure 5-25. Fire Hose Coupling
within a hose such that gasoline is delivered
through the inner hose and vapors are
COUPLING PROCEDURE
Proper coupling selection and installation
are critical for hose assembly performance.
Consult the hose and/or coupling manufacturer
for coupling recommendations and proper
installation instructions. Trained personnel
using the recommended tools and procedures
should make hose assemblies.
Additional guidance for NAHAD members
can be obtained using the Hose Assembly
Guidelines for Industrial, Composite, PTFE,
Hydraulic and Flexible Metal hose assemblies.
Figure 5-23. Coaxial Gasoline Coupling
The guidelines are available at www.nahad.org.

RMA/IP-2/2003 42