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burkert 2875 德国比例阀

简要描述:

宝德2875比例阀也是直动式调节阀,可与burkert 8605和burkert 8611控制器连接,也是通过控制器来调节比例阀的开度。burkert 2875 德国比例阀

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burkert 2875 德国比例阀

• Excellent range (1:200)

• Very good response

• Compact valve design

• Orifice sizes 2 ... 8 mm

• Port connection 3/8” and 1/2”

The direct-acting solenoid control valve Type

2875 is used as the regulating unit in control

loops. Due to an elastomeric seat seal the

valve closes tight (integrated shut-off function),

up to the DN specifi c nominal pressure, see

ordering chart on page 3. The plunger of the

valve is assembled frictionless, which leads

to an extraordinary adjustment characteristic.

This valve is particularly suitable for demanding

control tasks (high control range, dry gases, etc.).

Circuit function A

burkert 2875 德国比例阀

Valve control takes place through a PWM signal 1).

The duty cycle of the PWM signal determines

the coil current and hence the position of the

plunger. Optionally the valve can also be

driven with DC voltage.

Please note the sizing comments for such a

control valve on page 2.

8605 PWM

Microprocessor-controlled electronics

– Compensation of the solenoid coil heating by internal current control

– Confi gurable ramp function

– Adjustable zero point shutdown

– Display and buttons

– Selectable input signal

– RS232 or RS485 interface (with auxiliary module)

– Infi niy variable PWM frequency

– Simple adaptation of the minimum and maximum current (start of opening and full opening) to the actual pressure conditions

Ordering chart Control Electronics for Solenoid Control Valves

Version

Max. coil

current

[mA]

Item no.

2861, 2871 24 V DC

2861, 2871 12 V DC

2863, 2873 24 V DC

2863, 2873 12 V DC

2865, 2875 24 V DC

2865, 2875 12 V DC

2836 24 V DC

6024 24 V DC

6024 12 V DC

6223 24 V DC

6223 12 V DC

Cable plug with PG-connection 200 – 1000 178 354 x x x x x

Cable plug with M12-connection 200 – 1000 178 355 x x x x x

Cable plug with PG-connection 500 – 2000 178 356 x x x x x x x

Cable plug with M12-connection 500 – 2000 178 357 x x x x x x x

Cable plug with PG-connection without operating unit 200 – 1000 178 358 x x x x x

Cable plug with M12-connection without operating unit 200 – 1000 178 359 x x x x x

Cable plug with PG-connection without operating unit 500 – 2000 178 360 x x x x x x x

Cable plug with M12-connection without operating unit 500 – 2000 178 361 x x x x x x x

DIN-rail 40 – 220 178 362 x

DIN-rail 200 – 1000 178 363 x x x x x x x

DIN-rail 500 – 2000 178 364 x x x x x x x

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