Siemens ET 727 Series Manual de usuario descargar pdf (Pagina 9)

8650

AirLINE Ex

p. 9/11

Pilot valves type 6526 and type 6527 Ex-i (16.5 mm width per station)

Technical data

Body material

PA (polyamide)

Sealing material

NBR

Media

lubricated and non lubricated dry

compressed air; neutral gases

(5 μm-ﬁ lter recommended)

Port connection

Flange for MP 13

Manual actuation

yes (alternative versions without)

Rated power

0.3 W

Duty cycle

100 % ED (continuous operation)

Electrical connection with

the valve

rectangular plug RM 5.08 mm

Oriﬁ ce

6mm

QNn value air [l/min]

700

Installation

with 2 screws M3 x 30

The pilot valves of types 6526 and 6527 consist of a rocker type solenoid valve of type 6106 (Ex-i design) and a pneumatic poppet valve as ampliﬁ er.

The operating principle enables high pressure to be controlled with low power consumption and short switching times. The valves are equipped with

manual override (alternatively versions without).

Ordering chart: ATEX, IEC-Ex

Circuit

function

Response

times

Opening [ms]

Response

times

Closing [ms]

Pressure

range

[bar]

Manual

Override

Item no.

C = NC (normally closed)

80 90 2 ... 8 yes 175 634

no 175 674

1 ... 8 yes 175 731

3/2-way valve,

servo-assisted, currentless,

Port 2 decreased

80 90 2 ... 8 yes 175 727

no 175 728

5/2-way valve,

servo-assisted, currentless,

Port 1 with Port 2,

Port 4 exhausted

1 ... 8 yes 175 729

1) Version with auxiliary pilot air

1 2 3 4 5 6 7 8 9 10 11

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