Page 62 - 2010-2022 hose manufactureing ability and guide

D. Built-in Fittings - Large bore hose is SPECIAL COUPLINGS AND CLAMPS
commonly manufactured with built-in
fittings. The primary reason is that the There are many coupling and clamp
fittings need to be attached to the hose body variations on the market which have been
in order to withstand the end thrust adapted for special applications. Some of these
pressures. Common types are built-in special couplings and clamps are:
nipples (BIN), built-in nipple flange A. Sand Blast Sleeve Fittings - This fitting is
(BINF), built-in rubber covered flange designed so that the material carried
(BIRF), and beaded ends with split ring through the hose does not contact the metal.
flanges (BE). Examples of each are shown It is used for sand blast and cement
in Figures 5-15 through 5-18. placement hose. See Figure 5-19.

Figure 5-15. BIN

Figure 5-19. Sand Blast Sleeve Fitting

B. Radiator and Heater Clamps - Automotive
coolant hose applications often use reusable
Figure 5-16. BINF
clamps to attach the hose to the radiator,
heater, or engine. These clamps can also be
used for low-pressure water discharge
applications. Examples of these clamps are
shown in Figure 5-20.

Figure 5-17. BIRF

Figure 5-20. Low pressure clamps.

Another low-pressure clamp is referred
to as a “constant tension” type clamp. This
clamp has the ability to provide constant
sealing force over a narrow range of OD’ s,
thus accommodating changes in hose and
stem OD’ s due to thermal expansion and
Figure 5-18. BE contraction along with compression set of
the hose. See Figure 5-21.

RMA/IP-2/2003 41