Bundesmann Apparatus
Model FTE001
Bundesmann Apparatus is used for the water absorption and water
penetration of the textile fabrics. It consists of a steel structure with
specimens is rotated at a specified speed in this tank about a vertical axis
with the help on an Electric motor and worm reduction gearbox placed underneath
the tank. Impinging of water jets coming from nozzles on 304 Screws fitted on
an aluminium plate produces the shower. The nozzles are fitted on aluminum
blocks, which are in turn connected to a closed piping system. Water is
supplied to piping system through an electric pump. A control valve and a
pressure gauge are also provided to regulate and indicate pressure in the
pipeline. A guard is provided to contain splash produced. Water not impinging
on the screws is also collected in this tray and drained away. This shower
arrangement is mounted on the top of the structure to give the specified drop
height. A hinged tray which can be swung during the testing is also provided to
shield the assembly from shower before and after the test. An arrangement to
collect water circulation tank and re-circulate it with the help of the pump is
also provided.
The cup assembly consists of four aluminum cups with their
axis tilted outward at 10º to 15º to the vertical mounted on an aluminum base.
Specimen holding ring made of aluminum hold the specimen on-to the cups with
the help have screwed clamps. Each cup four-wiper blades set perpendicular to
each other in the form of a cross. The wiper blades are made of stainless steel
and are tapered down away from the center. The abrading face of each blade is
cylindrical in shape. The wiper assembly presses against the lower surface of
the test specimen with the help of a spring. Arrangement is also made to make
the wiper blade assembly oscillate through an angle of 100º four times in every
one revolution of the cup assembly. Gunmetal drain fitted to each cup for
draining out the water collected in them. The cup assembly can be easily taken
out to facilitate mounting of specimens and draining of water collected in the
cups for determination of amount of water that has penetrated through the
specimens. Specimens loading disk is also provided with the equipment to
depress wipers to rim level while mounting the specimen.
