Vetter Lifting bags 1 bar (14.5 psi) Test Equipment - Manual (Page 9)

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5. Pressure testing of mini lifting bags 8 bar
5.1 with the aid of existing pressure water
sources (min. 11 bar)
5.1.1 Material
9 Test and measurement hose adapter
9 Test and ventilation head
9 Air supply hose, 10 m, green
5.1.2 Preparations for the test
The test and measurement hose adapter is coupled with the Storz-
D-coupling to a corresponding water connection.
The outlet pressure of the water supply must be at least
11 bar.
The air supply hose, 10 m, green, is connected to the test and
measurement hose adapter on one side and to the test and ven-
tilaltion head on the other side.
After the test and ventilation head has been connected to the sa-
fety coupling on the mini lifting bag, both ball valves should be
closed.
5.1.3 Carrying out the test
Open the shutoff valve on the pressure water source. Open the
water supply valve (A). The mini lifting bag to be tested is now
completely filled with water. If the manometer clearly indicates an
increase in pressure then the mini lifting bag must be ventilated.
For ventilation, the water supply valve (A) is closed and the mini
lifting bag must be positioned so that the valve connection is
pointing upwards.
If the ventilation valve „B“ is now opened then the air remaining
inside the bag escapes. By alternately operating the ball valves „A“
and „B“ it can be ensured that there is no more air in the bag.
Only when it is certain that the bag is completely ventilated can
the pressure be carefully and evenly increased to the pre-speci-
fied test pressure.
Mini lifting bags 8.0 bar = 10.4 bar test pressure/water
The bag which is now under pressure should remain for a
minimum of 3 minutes but a
maximum of 5 minutes
under pressure.
ZU
ZU
AUF
A
A
B