KP ATEX

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KP ATEX

ATEX controllers
Best selling ATEX controllers
Control of solids

Intended use

The overpressure indicator KP observes the pressure as a limit switch in silos and vessels. It is used to prevent the overpressure that can be in the containers due to the pneumatic pressure filling systems or the blocking of the filters or air outlets. This signal prevents the formation of cracks, dents and deformations that in many cases leaves the silo out of service. The KP indicators are certificated for use in potentially explosive Dust and Gas atmospheres as well as in hybride mixtures (Dust + Gas) hazardous areas.

Function

The operation of these devices is very simple. A very large Stainless Steel membrane, to avoid the dust and dirt causing obstructions, is sensitive to the air pressure and transmits this to a rod which actuates a micro switch. The controller is adjusted at 400 mm w.c. (0.04 bar). Other pressures are available under request.

Mechanical connection

The device has to be mounted vertically in the top of the silo or vessel using the own flange of the body.

Drill a Ø 71 mm hole and 4 holes in the top of the silo or vessel and mount the indicator using screws, rods, fasteners, nuts M8 or using the counterflange under request making sure of the horizontal position of the membrane.

Dimensions

Approximate measures given in mm.

Technical data


Name	Overpressure indicator
Type	KP-... – ref: 2230-A-...
Certifications	B1 Dust: ATEX II 1/2D Ex ta/tb IIIC T80° C Da/Db
Actuation pressure	+400 mm.c.a. (+0,04 bar) (Other pressures under request)
Ambient pressure	Atmospherical
Maximum pressure	+0,5 bar
Cable entry	M20x1,5
Maximum voltage	250 V AC
Contact function	1 NO + 1 NC
Capacity of the contact:
KP (B1 and B2)	15 A / 250 V AC (for resistive loads) For inductive or capacitive loads
KP (B5 and B22)	Uo < 30 V DC; Ii < 100 mA
Product temperature	-25° C – +80° C
Ambient temperature	-20° C – +70° C
Protection	IP66 according to DIN EN60529
Weight	A1F1A-... – 1,20 Kg A1F1I-... – 2,10 Kg A2F1I-... – 2,90 Kg
Materials:
Housing	A1: Aluminium, RAL 7001 coated A2: Stainless Steel 1.4408
Flange connection:	F1A: Aluminium F1I: Stainless Steel 1.4571
Membrane	Stainless Steel 1.4301
Fixing gasket	Rubber
Welded counterflange	Stainless Steel 1.4305 (under request)
Cable gland	Niquel-plated Brass