Pneumatic knockers PKL SERIE
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- High impact power.
- Low compressed air requirement per impact.
- Low noise versions with elastomer insert EE.
- Versions with automatic control ST.
- ATEX or stainless steel versions available.
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Applications
Series PKL pneumatic impactors are particularly suitable for knocking stubborn residues from walls,
pipes and containers.
Examples of applications include: elimination of tube forming, bridging and evacuation of residues.
Design and Function
The impact (similar to a hammer) is created by the piston. With PKL 125 to 150 the impact is produced
directly against the surface upon which the impactor is mounted.
From PKL 170 upwards the impact is produced against the base plate. The compressed air pushes the
piston against one or two springs. The fast exhausting of the piston chamber causes the piston to
strike abruptly against the impact surface.
Series PKL impactors can be operated using non lubricated compressed air.
A directional control valve is necessary for activation (not included). The maximum impact sequence
is 10 impacts in a row, at a rate of 15 impacts per minute and 180 impacts per hour.
Permissible Operating Conditions: Drive Medium:
Compressed air or nitrogen, preferably with oil mist.
Operating Pressure:
2,5 bar to 6 bar
Ambient Temperature:
- 20ºC to 60ºC
- HT version up to 160ºC
"ST" kit
The ST kit enables a continuous impact sequence when connected to a permanent compressed air
supply.
"EE" kit
The EE kit replaces the steel plate and is used to produce a low noise impact or "rubber hammer
effet".
PKL E (ATEX)
PKL E pneumatic impactors comply with directive 94/9/EC (ATEX product directive) device group II
and are suitable for use in potentially explosive areas of category 2 (2G and 2D 85°C[T6])
in zones 1, 2, 21 and 22.
PKL S (Stainless Steel)
Stainless steel intermittent impactors satisfy the specific requirements for chemical resistance of the
surfaces.
PKL HT (High Temperature)
The HT series is designed for use at ambient temperatures of up to 160ºC .
Working pressure
PKL series work generally speaking, under a 4 - 6 bar pressure.
PKL
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