Asco Series NK-MXX Solenoid Owner's manual

32

3834879

GENERAL

These Installation and Maintenance Instructions for sole-

noid operator type NK-MXX are a general supplement to

the speciﬁ c I&M sheet for the solenoid valve. The operator

is identiﬁ ed by the preﬁ x NK before the catalogue number.

Always use both I&M sheets for installing and maintaining

the solenoid valve.

DESCRIPTION

Essential Health and Safety Requirements: Solenoid

operators type NK-MXX are designed in accordance with

Annex II of European Directive 94/9/EC. EC type examina-

tion certiﬁ cate LCIE 01 ATEX 6050X is in compliance with

European standards EN 60079-0, EN 60079-1, EN 61241-0

and EN 61241-1.

Classiﬁ cation: II 2 G Ex d IIB + H2 T6 to T4

II 2 D Ex tD A21 IP65 T 85°C to T 135°C

See the EC type-examination certiﬁ cate at:

www.asconumatics.eu

INSTALLATION

Special conditions for safe use:

Our components are intended to be used only within the

technical characteristics speciﬁ ed on the nameplate. Solenoid

operators type NK are designed to be installed in potentially

explosive atmospheres caused by gases of groups IIA, IIB

and H2, vapours or mists of (category 2G) and dusts (cat-

egory 2D). The surface temperature classiﬁ cation is T6 to T4

and depends on the power rating and ambient temperature

stated on the coil.

Depending on the ambient temperature/power rating, a heat

resistant cable suitable for the temperature indicated on the

coil must be used (see EC type-examination certiﬁ cate at

www.asconumatics.eu).

The voltage indicated on the coil may only vary within a ±10%

range of the nominal voltage.

TEMPERATURE CLASSIFICATION

AC (~) Solenoids DC (=) Solenoids

Pn

(watt)

solenoid

size

maximum

ambient °C

(1)

Pn

(watt)

solenoid

size

maximum

ambient °C

(1)

MXX

surface

temperature

MXX

surface

temperature

T6

85°C

T5

100°C

T4

135°C

T6

85°C

T5

100°C

T4

135°C

insulation class F (155°C) 100% E.D. insulation class F (155°C) 100% E.D.

10

(2)

•

25 40 60 11,2

•

25 40 60

10,5

•

25 50 19,7

•

60

insulation class H (180°C) 100% E.D. insulation class H (180°C) 100% E.D.

10,5

•

25 60

11,2

•

25 40 75

17,4

•

25 60

19,7

•

60

Check the wattage compatibility with the selected product.

1) Minimum ambient temperature: -40°C. This temperature

may be limited by the operating temperature rating of the

pilot valve or spool valve.

2) Construction with rectiﬁ ed AC coil (~).

The installer is required to proceed in accordance with Euro-

pean Directive 1999/92/EC and associated standards.

ELECTRICAL INSTALLATION

Wiring must comply with local and national regulations

concerning equipment for use in explosive atmospheres.

The housing is provided with a threaded hole (3/4 NPT

or 1/2 NPT or M20 x 1,5) for cable/sleeve entry. External

wires and cables must be inserted through a suitable and

properly installed ﬂ ameproof cable gland.

Position the solenoid operator before making the electrical

connection. To make the wiring connections to the coil termi-

nals, remove the cover from the solenoid operator. Remove

the outer insulation from the cable by approx. 30 mm and strip

8 mm off the wires. Introduce the wires into the cable-gland

and connect them to the coil terminals. Connect the cable

ground wire to the ground terminal. Leave enough slack in

the wires between the cable entry and the coil to avoid ex-

cessive strain on the wires. Assemble the cable gland and

tighten the elastomer compression seal so that it ﬁ ts tightly

around the cable.

Close the housing and tighten the 4 cover screws to the speci-

ﬁ ed torque. The solenoid operator’s housing is equipped with

an external terminal for an earth wire.

CAUTION

The power supply must be within the range speciﬁ ed on the

nameplate. Failure to stay within the electrical range of the

coil rating will result in damage to or premature failure of the

coil. This will also invalidate its approval.

WARNING: Unauthorised personnel is not permitted to re-

move the cover from the solenoid operator.

Take care not to damage the mating and sealing surfaces

when disassembling or reassembling the cover of the sole-

noid operator.

Wrong assembly will invalidate the approval.

SERVICE

To prevent the risk of personal injury or property damage,

do not touch the solenoid operator. It can become hot under

normal operation conditions. If the solenoid valve is easily

accessible, the installer must provide protection against ac-

cidental contact.

MAINTENANCE

For servicing, refer to the solenoid valve’s Installation and

Maintenance Instructions. Strictly follow all procedures rec-

ommended by European Directive 1999/92/EC and associ-

ated standards during maintenance.

Spare parts kits are available (contact us). If problems arise

during installation or maintenance or in case of doubt, please

contact us or one of our authorised representatives.

CAUTION: Prior to any maintenance work, power off and

depressurise the valve and vent ﬂ uid to a safe area. Do not

open the solenoid operator if it has recently been energised,

wait 35 minutes before opening.

DISASSEMBLY AND RE-ASSEMBLY OF SOLENOID OP-

ERATOR ON VALVE:

This operation must be carried out by suitably qualiﬁ ed

personnel.

Unscrew the 4 screws and remove the cover.

Disconnect the electrical wires, loosen the screw on the clip

and remove the clip, remove the coil and its yoke, remove

the housing. Unscrew the core tube with a hook wrench and

INSTALLATION AND MAINTENANCE INSTRUCTIONS

GB

Solenoid operators, ﬂ ameproof enclosure, type NK-MXX

AJF: 3834879 - R0

INSTALLATION AND MAINTENANCE INSTRUCTIONS

GB

Solenoid operators, ﬂ ameproof enclosure, type NK-MXX

take care not to loose the plugnut.

Proceed in reverse order to re-install (use a new clip).

The clip is put in place in two steps. Securing the clip in

place with a moderate tightening will allow you to position

the operator unit, then tighten at the given torque when cor-

rectly positioned.

Please note: Make sure that the clip fastening screw is in the

axis of the NK operator (see photo on “Drawings” page) so

that it is opposite of the recess provided for it under the cover.

The solenoid operator must be fully reassembled as the hous-

ing and internal parts close the magnetic circuit.

Replacement of screw no. 1: Only use screws with 700 N/

mm

2

minimum tensile strength.

In case of replacement of parts by the user, the trace-

ability of the ﬁ nal product cannot be guaranteed by us

and must be ensured by the user.

Wrong assembly will invalidate the approval.

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3332

3834879

3

*

4

*

5

6

7

8

*

B

9

*

10

11

*

2

D

25

Ø 2,5

1

A

3

C

E

SERIES

NK-MXX

* Supplied in spare part kit

* Livrées en pochette de rechange

* Enthalten i m Ersatzteilsatz

* Incluido en Kit de recambio

* Disponibile nel Kit parti di ricambio

* Geleverd in vervangingsset

* Leveres som en del av reservedelssettet

* levereras med reservdelssatsen

* Toimitetaan varaosasarjassa

* Leveres i reservedelssæt

* Fornecido no kit de peças sobresselentes

* Äéáôßèåôáé óå êéô áíôáëëáêôéêþí

* Sada náhradních dílů obsahuje

*

Dostarczane w zestawie części zapasowych

*

Pótalkatrész-készlet része

DRAWINGS GB DESSINS FR ZEICHNUNGEN DE

DISEGNO ES DIBUJO IT TEKENING NL

TEGNINGER NO RITNINGAR SE PIIRUSTUKSET FI

TEGNINGER DK DESENHOS PT Ó×ÅÄÉÁ GR

OSNOVY CZ RYSUNKI PL

RAJZOLÁS

HU

F

items N.m

Inch.pounds

A 3 ±0,2 26 ±1,5

B 0,5 ±0,1 4 ±1

C 15 ±0,2 135 ±15

D 20 ±0,3 175 ±25

E 0,8 ±0,1 7 ±1

1/2» NPT M20 x 1,5

preﬁ x ‘T’

preﬁ xe ‘T’

vorsatz ‘T’

preﬁ jo ‘T’

preﬁ sso ‘T’

voorvoegsel ‘T’

preﬁ x ‘T’

forstavelse “T”

preﬁ ksi “T”

præﬁ ks ‘T’

preﬁ xo ‘T’

ðñïèåìá ‘T’

předpona „T“

Preﬁ ks „T“

„T“ előtag

preﬁ x ‘ET’

preﬁ xe ‘ET’

vorsatz ‘ET’

preﬁ jo ‘ET’

preﬁ sso ‘ET’

voorvoegsel ‘

ET

’

preﬁ x ‘ET’

forstavelse “ET”

preﬁ ksi “ET”

præﬁ ks ‘ET’

preﬁ xo ‘ET’

ðñïèåìá ‘ET’

předpona „ET“

Preﬁ ks „ET“

„ET“ előtag

DRAWINGS GB DESSINS FR ZEICHNUNGEN DE

DISEGNO ES DIBUJO IT TEKENING NL

TEGNINGER NO RITNINGAR SE PIIRUSTUKSET FI

TEGNINGER DK DESENHOS PT Ó×ÅÄÉÁ GR

DRAWINGS CZ DRAWINGS PL DRAWINGS HU

GB Description FR Description DE Bezeichnung

1. Screw

2. Cover

3. O-ring

4. Clip

5. Yoke

6. Coil

7. Housing

8. O-ring

9. O-ring

10. Core-tube

11. Plugnut

1. Vis

2. Couvercle

3. Joint

4. Clip

5. Etrier

6. Bobine

7. Boitier

8. Joint

9. Joint

10. Tube-culasse

11. Noyau

1. Schraube

2. Deckel

3. Dichtungsring

4. Klammer

5. Joch

6. Magnetspule

7. Gehäuse

8. Dichtungsring

9. Dichtungsring

10. Führungsrohr

11. Gegenanker

ES Descripcion IT Descripzione NL Beschrijving

1. Tornillo

2. Cubierta

3. Junta

4. Clip

5. Yugo

6. Bobina

7. Capot metálico

8. Junta

9. Junta

10. Tubo-núcleo

11. Culata

1. Vite

2. Custodia

3. Anello di ritenuta

4. Clip

5. Giogo

6. Bobina

7. Sede

8. Anello di ritenuta

9. Anello di ritenuta

10. Cannotto

11. Nucleo ﬁ sso

1. Bout

2. Deksel

3. O-ring

4. Bevestigingsclip

5. Juk

6. Spoel

7. Huis

8. O-ring

9. O-ring

10. Plunjergang

11. Vaste kern

NO Beskrivelse SE Beskrivning FI Kuvaus

1. Skrue

2. Deksel

3. O-ring

4. Klemme

5. Åkmagnet

6. Spole

7. Hus

8. O-ring

9. O-ring

10. Kjernerør

11. Pluggmutter

1. Skruv

2. Lock

3. O-ring

4. Clip

5. Kåpa

6. Spole

7. Hus

8. O-ring

9. O-ring

10. Kärnrör

11. Pluggmutter

1. Ruuvi

2. Kansi

3. O-rengas

4. Pidike

5. Kuori

6. Käämi

7. Kotelo

8. O-rengas

9. O-rengas

10. Ydinputki

11. Tulppamutteri

DK Beskrivelse PT Descrição GR

Περιγραφή

1. Skrue

2. Låg

3. O-ring

4. Klemme

5. Magnetlåg

6. Spole

7. Hus

8. O-ring

9. O-ring

10. Kernerør

11. Stikmøtrik

1. Parafuso

2. Tampa

3. Anel

4. Braçadeira

5. Engate

6. Bobina

7. Invólucro

8. Anel

9. Anel

10. Tubo central

11. Porca do bujão

1. Âßäá

2. ÊÜëõììá

3. Ôóéìïý÷á

4. ¸ëáóìá

5. Ïðëéóìüò

6. Ðçíßï

7. ÊÝëõöïò

8. Ôóéìïý÷á

9. Ôóéìïý÷á

10. ÐõñÞíáò-óùëÞíáò

11. Êëåéóôü ðáîéìÜäé

CZ Popis PL Opis HU Leírás

1. Screw

2. Kryt

3. Tě

snicí kroužek

4. Spona

5. Kotva

6. Cívka

7. Pouzdro

8. O-kroužek

9. O-kroužek

10. Trubička pro jádro

11. Zátka

1. Wkręt

2. Cover

3. O-ring

4. Zacisk

5. Jarzmo

6. Cewka

7. Obudowa

8. Uszczelka typu O-ring

9. Uszczelka typu O-ring

10. Rdzeń

11. Nakrętka wtyczki

1. Csavar

2. Burkolat

3. Tömítőgyűrű

4. Bilincs

5. Himba

6. Coil

7. Ház

8. O-gyűrű

9. O-gyűrű

10. Magcső

11. Csavardugó

ASCO JOUCOMATIC SA

BP 312 - 92506 RUEIL-MALMAISON Cedex - FRANCE

☎

(33) 147.14.32.00 - Fax (33) 147.08.53.85 - www.asconumatics.eu

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Asco Series NK-MXX Solenoid Owner's manual

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