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Hip-Air™ Breathing Apparatus
Principles of Operation

  Operation of the Hip-Air Pressure Demand Breathing Apparatus is manual. It is an
approved, rated five-minute escape device. The pressure demand air-line respirator phase
is connected by an approved air-supply hose to a primary respirable air source; the worker
breathes from this source with the valve of the egress (exit) cylinder of the device turned
off until the user is ready to leave the working area. The user can leave, connected to the
primary air source, or can open the egress cylinder valve and have approximately five
minutes respiratory protection. When breathing from the air cylinder, the user can remain
connected to the primary air supply and exit, or can disconnect from the air source for
easier escape. If the primary air supply source should fail for any reason, the worker can
switch to the egress cylinder by turning a valve and escape to a safe atmosphere.


Approvals & Standards

  The Hip-Air Breathing Apparatus is approved by the National Institute for Occupational
Safety and Health (NIOSH), Approval TC-13F-143 when the device is supplied with
respirable air from either the small escape cylinder or from a primary compressed-air
source; the approval requires that when connected to a primary air source, an air inlet
pressure between 65 and 85 psig must be maintained through an approved hose length of
between 8 and 300 feet. The approval requires that the compressed-air cylinder be fully
charged with air conforming to at least Grade D of Compressed Gas Association
Commodity Specification for Air, G-7-1; use limited to temperatures above -25 degrees F.


Applications
  Chemical
  Construction
  Hazardous Materials
  Nuclear
  Oil and Gas
  Welding


Hazards
  Confined Space
  Oxygen Deficiency
  Toxic Atmosphere IDLH
  Welding

Product Information

  Provides respiratory protection for personnel who must work in atmospheres that are
immediately dangerous to life and health (IDLH), such as in oil drilling and the
manufacturing and handling of certain chemicals. Serves as both a long-duration work
device and an escape device. Approved for respiratory protection for entry into, for
extended periods of work in and for escape from IDLH atmospheres. If used for entry into
IDLH atmospheres, the air-line must be connected before entry. The self-contained air
supply is approved for escape only. Designed for good weight balance, the cylinder valve
and pressure reducer are on the right side and the belt-mounted pressure demand
regulator is positioned on the left side. The cylinder is connected to the regulator by a
small length of neoprene air-supply hose, which rests on the wearers lower back,
completely out of the way. One end of the hose attaches to the pressure regulator coming
off the cylinder and the other to the top of a two-inlet manifold which leads directly to the
regulator. The bottom inlet is equipped with a quick-disconnect device to attach the air-line
to the unit, available with Snap-Tite, Foster, Hansen or Duff-Norton quick-disconnect. The
cylinder valve is positioned on the front side of the cylinder so the wearer can simply tilt the
cylinder and easily read the gauge. Also available is a Dual-Supply Hip-Air breathing
apparatus. Dual-Supply increases mobility because workers do not need to remain
tethered to a single air-supply hose throughout the work period. With dual-supply
capability, users can connect from one pressurized continuous air source to another
without losing continuity of airflow. When the first length of air-supply hose has reached its
limit, the wearer simply plugs into a second approved air source and disconnects from the
first. This technique is known as “leap-frogging” because it gives workers the ability to
move from station to station without disrupting the supply of air.