Asco Series 605 Pneumatic Valve Owner's manual

Brand: Asco

Model: Series 605 Pneumatic Valve

Type: Owner's manual

Asco Series 605 Pneumatic Valve is a compact and precise pressure regulator that converts an electrical signal into pneumatic pressure. It excels in applications requiring accurate pressure control due to its integrated control loop with electronic pressure feedback. The 2-wire technology simplifies electrical connection, and the piezo proportional pilot and downstream pressure and flow amplifier ensure efficient operation. This valve is intrinsically safe for use in hazardous environments and is suitable for precise pressure regulation in a wide range of industrial applications.

IM14186

AJD: IM14186 - R0

INSTALLATION AND MAINTENANCE INSTRUCTIONS

2-wire proportional valve series 605, intrinsically safe Ex ia according to EN60079-11

DESCRIPTION

The 2-wire series 605 proportional valve is a compact, elec-

tropneumatic pressure regulator which converts an electri-

cal signal into pneumatic pressure (E/P transducer). It is

particularly suited for precise pressure regulation due to its

integrated control loop with electronic pressure feedback

The electrical connection uses 2-wire technology. The valve

is intrinsically safe according to ATEX. The pressure regula-

tor is ﬁtted with a piezo proportional pilot and a downstream

pressure and ﬂow ampliﬁer.

The proportional valve is operated with a correspondingly

associated electrical apparatus.

Its explosion protection corresponds to Ex ia IIC T4.

Ingress protection: IP65.

The valve is designed for use in zones 0,1 and 2 for gases

and vapours and zones 20, 21 and 22 for dusts.

EC type-examination certiﬁcate no.: IBExU07ATEX1014 X

Ex marking: q II 1G Ex ia IIC T4

q II 1D Ex iaD20 T135 °C

ASSEMBLY / CONNECTION

Pneumatic connection:

The pneumatic connection is threaded.

1 = Supply pressure

2 = Pressure outlet

3 = Exhaust (with integrated protection or threaded connec-

tion, according to version used).

Recommendations for pneumatic connection:

Tightness is to be ensured by using cylindrical screws with

matching ﬂat seals or conical screws as well as a sealing

compound. Apply sealing compound sparingly. Do not use

Teﬂon sealing tape or hemp as they may get inside the valve

and damage it. To ensure maximum performance, the diam-

eter of the pneumatic lines and connections must be ad-

justed to the nominal diameter of the valve.

The supply pressure must always be less than the maxi-

mum inlet pressure (MAP) and must be 0.5 bar above the

maximum outlet pressure.

Use a sufﬁciently ﬁltered air supply (50 µm, free of conden-

sates). Install ﬁlter as close as possible to the valve.

Only air or neutral gas may be used as ﬂuid.

Electrical connection:

The valves are provided with a 4-pin connector. The connec-

tion is made with a 4-pin connector size 15 – CM6 (Pg7P).

The connector is included in the scope of delivery. To ensure

IP65 protection and provide for an adequate strain relief, use

a 2-wire cable diameter 4-6 mm.

Connections: 1 = + SETPOINT (4…20mA)

2 = - SETPOINT

3 and 4 not used.

Electrical connections must be made by qualiﬁed personnel

according to applicable explosion protection requirements.

Before any work is done, turn off the electrical power sup-

ply to remove power from all components. All connecting

terminals and the connector’s cable gland must be properly

tightened.

Do not remove the cover or the plug on the valve during

operation.

Analog setpoint:

The valve is supplied with a current setpoint of 4…20mA.

Factory settings:

The valves are factory set as follows:

Outlet pressure 0 bar at a setpoint of 4 mA.

Maximum outlet pressure at a setpoint of 20 mA.

Safety parameters:

Max. voltage: Ui = 30V

Max. current: Ii = 120mA

Max. power: Pi = 800mW

Max. inductance: Li = 0µH

Max. capacitance: Ci = 0µF

The supply unit’s category is required to be category “ia”

when using the component in zone 0.

Category “ib” is sufﬁcient for all other zones.

Do not exceed maximum ambient temperatures.

MAINTENANCE

PULSTRONIC valves with piezo proportional control gener-

ally do not require any maintenance.

If problems arise during installation, maintenance or opera-

tion, please contact ASCO JOUCOMATIC or one of its of-

ﬁcial representatives. The product complies with Directives

89/392/EEC, 89/336/EEC and 94/4/EC. A declaration of

conformity is available on request.

TECHNICAL CHARACTERISTICS

Ambient temperature: : -20°C bis +60°C

Fluid temperature: : -20°C bis +60°C

Degree of protection: : IP 65

Max. supply pressure: : 8 bar

Max. outlet pressure: : 6 bar

Setpoint: : 4…20mA

Valve types: 605 X 2 9 X X

605 7 2 9 X X Nominal diameter DN 4, 1/8”

605 X 2 9 0 X Tapped G (ISO 228/1), exhaust (3) protect-

605 X 2 9 3 X Tapped G(ISO 228/1), with connectable ex-

haust (3)

605 X 2 9 4 X Tapped NPT, exhaust (3) protected

605 X 2 9 3 X Tapped NPT, with connectable exhaust (3)

605 X 2 9 X 2 Outlet pressure 2 bar

605 X 2 9 X 2 Outlet pressure 3 bar

605 X 2 9 X 2 Outlet pressure 4 bar

605 X 2 9 X 3 Outlet pressure 5 bar

605 X 2 9 X 6 Outlet pressure 6 bar

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Asco Series 605 Pneumatic Valve Owner's manual

Brand: Asco

Model: Series 605 Pneumatic Valve

Type: Owner's manual

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français: Asco Series 605 Pneumatic Valve Le manuel du propriétaire
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