Fantini Cosmi A41 Manual

Fantini Cosmi Ikke kategoriseret A41

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Side 1/4

LEVEL CONTROLS A41 - A42

new execution with direct hand control on the floating-ball

For steam boilers up to 16 Bar

Sizes: len 350 - high 215 - br. 158

Fig. 1

Sizes: len 365 - high 235 - br. 158

Fig. 2

USE

Level Controls Group A4 are used to control fluids level into boilers

and tanks with a pressure up to 16 bar.

1. Dual electric control mechanism permits supervisory control of

feed pump or alarm signal, where level is not restored by feed

control.

2. Safety bulb is of change-over type (see diagram No 4); for this

reason it can be used both as alarm signal by a bell, lamp or other

device and as automatic burner shut down protection.

OPERATION

Boiler Water Level Controls Group A4 consist of a floating-ball

connected with metal rod that controls, throug a special level

system unit, two mercury bulbs making electric contacts. Control

unit is coupled with contacts unit by a device allowing level

adjustment jumps from 35 to 100% of the maximum level admitted

by the equipment. Every desired adjustment is possible.

FEATURES

Level Controls Group A4 is available in two standard types, i.e. A41

and A42 respectivelly.

TYPE A41 Floating-ball in stainless steel AISI 304-iron flange and

counterflange for vessel welding-metal bellows guaranteed for

pressure uo to 355 lbs. - cast iron body of high impact anti-resilient

strength - special mercury bulbs for high temperature - ceramic

terminal block - adjusting device for level jump from 35 to 100% of

maximum level - armoured and enclosed manufacture with

protected opening for outside visibility of mercury bulbs - armoured

output cables.

TYPE A42 Same design and manufacture of Type A41, but coupled

with cast-iron body, floating-ball protection with female nipples 1"

gas for pipe connection between fluid area and steam or air zone of

the boiler.

ELECTRICAL FEATURES

Via dell'Osio, 6 20090 Caleppio di Settala MI

International calls Tel.++39 02 95682222 Fax.++39 02 95307006

E-mail: export@fantinicosmi.it http//www.fantinicosmi.com

Level controls type A41A/24E have unterchageable beams: long and short, permitting nominal range adjustement 15 ÷ 50 or 25 ÷ 75 mm (5/8 ÷ 2 or 1 ÷ 3).

Level controls type A41B/24E have mounted floating-ball with inerchangeable beams, permitting nominal range of 50÷210, 65÷305, 95÷370 and 145÷570 mm

Nominal insulation tension Ui 380V~

Contiunuous duty nominal current Ith 6A

Operating nominal current Ie:

220V- 250V~

Resistive load AC-12 - 5 A

Inductive load AC-15 - 2 A

Direct current DC-13 0,2A - -

25 to 50

A41A

25 to 75

55 to 210

65 to 305

A41B

95 to 370

140 to 570

25 to 50

A42A

IP54

5,4

IP54

5,1

IP54

9,3

-25 to 60

200

20016

200

TYPE

Max temperature

of the liquid

°C

Level

differential

Max working

pressure

bar

FLANGE CONNECTION

1"BSP female connection

Working

temperature

°C

Protection

degree

Weight

each

Kg.

Box

pcs.

N°

LEVEL CONTROL TYPE A41 INSTALLATION

Fix the highest required level point and connect the iron flange of

the Level Control to the boiler so that its horizontal middle line is 25

mm higher than the maximum desired level point (see our diagram

on the right).

1 - Carefully weld inside and outside flange in order to have a

perfect tightness.

2 - Connect the Level Control perfectly vertically relative with its

middle line. Connections and flexible rubes for cables outlet must

result to be downward.

3 - Effect connections by means of insulated conduits suitable for

the Level Control temperature according to the diagrams on page

No 4

IMPORTANT - For a perfect operation of the bulbs it is necessary

that the flange middle line be absolutely vertical.

LEVEL CONTROL TYPE A42 INSTALLATION

Fix the highest required level point and effect connections on the

boiler for conduits of 1" gas, being careful about the following

points:

1 - It is necessary that connection to the liquid area is not influenced

by the feed liquid and therefore avoid connection to feed pipes.

2 - It is necessary that the connection point to the air or steam zone

is far away from the starting pipe to avoid a sinking of the liquid

surface and a possible inner alteration of the level.

Fig. 4

Instructions

(Fig. 3)

(Fig. 4 e 5)

125

25 mm

High level

Fig. 5

3 - Effect careful connections by means of pipes to 1" gas being

careful that the two spans of are pipes be fixed perfectly vertically.

IMPORTANT - It is preferable that the connection pipes to the water

zone is as short as possible because, otherwise, they may cause a

remarkable sinking of the liquid temperature inside the pipes or in

the Level Control. In addition to that, the water specific weight

would consequently be higher.

It may happen that water, if not perfectly pure and clean, influences

the level of the regulator. In this case it is advisable to protect the

water inlet by means of a perforated grid or other devices.

Produkt Specifikationer

Mærke:	Fantini Cosmi
Kategori:	Ikke kategoriseret
Model:	A41

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