Jola Spezialschalter K. Mattil & Co. KG
Klostergartenstraße 11-20
D-67466 Lambrecht
Phone: +49 63 25 / 188-01
 
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Pneumatic float switch

SM/V130/E/PN/Ex-0G
II 2/1 G c IIC ΔT=0 

  • with pneumatic 3/2-way valve

  
For use in pneumatic control circuits in potentially explosive atmospheres in categories 
- float side: zone 0, 1 or 2,
- terminal box: zone 1 or 2;

EC type examination certificate: INERIS 03ATEX0224


Pressure range:  1.5 bar to max. 6 bar

Operation:

"UP" operation:
float in "max." position: air is able to flow;
float in "min." position: air passage is blocked

on request:

"DOWN" operation:
float in "max." position: air passage is blocked;
float in "min." position: air is able to flow


Application: for various liquids, depending on the length of the float rod and the type of float 
used - please contact us for information on different options
Brochure Float switches SM [Ex] [PDF]
Operating principle 
pneumatic 3/2-way valve
All parts in contact with the liquid stainless steel 316 Ti
Float material stainless steel 316 Ti
Float form ball float
Float diameter 130 mm
Screw-in nipple material stainless steel 316 Ti
Screw-in nipple dimension G1
Flange 
On request: blind flange with any desired 
dimensions tapped with G1 thread
Float protection class IP 68
Connection head 
made of glass fibre and graphite reinforced
polyester, A 301, 110 x 75 x 55 mm, 
with 2 hose connectors for DN 6
Mounting orientation vertical
Mounting from the top
Temperature resistance 
0° C to + 40° C
Pressure resistance 
for pressureless applications only,
only for application at atmospheric conditions 
(0.8 bar to 1.1 bar)
Documents for application
in explosive atmospheres 		EC type examination certificate [PDF]
EC Declaration of Conformity [PDF]
Installation, operating and maintenance instructions [to the language selection]		 
Length of the float rod less float (measured from sealing surface of screw-in nipple):
as required; 200 mm if not otherwise specified.
Guide tube for the float rod for rod length over 500 mm included (for rod lengths under 500 mm
on request).

Options:

On request: 

- ball float 148 mm Ø, 180 mm Ø or 200 mm Ø
 
Mode of operation for pneumatic systems:

The rising or falling liquid level causes the float to move marginally up or down. 
When the float rises, it activates a pneumatic 3/2-way valve.

These units are not suitable for use in turbulent liquids (e.g. in stirrer tanks).

 
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