**BURKERT两位两通比例阀，德国宝德比例阀主要特点
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地址：上海市嘉定区江桥嘉涌路99弄6号713室
额定宽度从 DN 8 至 25 mm
规格：标准款、带位置调节仪款、带过程调节器款
2/2 way Proportional Valve (motor-driven)
Universal controller Type 8611
The motor’s power consumption to hold a speci? c opening position of the valve is zero.
This key feature can reduce the energy consumption of a plant dramatically and thus make it more e?  cient.
Type 3285 is available as a standard ON/ OFF or proportional valve,
tput via the M12 circular plug-in connector
这一特性可大幅度降低设备对能源的需求，从而使其更为*效。
型号 3285 有比例阀标准款、带集成式位置调节仪的规格
以及带集成式过程调节器的规格三种可选。
非介质接触式驱动器
 as a version with integrated positioner and as a version with integrated process controller.
The positioner proportional valve converts an external standard signal (position set-point value) into a valve position.
 The position of the actuator is controlled according to the position set-point value.
(DN8) … 1500 g (DN25) 1) Pressure data [bar]: Overpressure with respect to atmospheric pressure
Pressure transmitter Type 8311
Technical data Materials Body Housing Seals  Seat sealing
Brass or stainless steel PC (Polycarbonate), PPS (Polyphenylene sul? de) FKM,
直接作用式比例阀型号 3285 适用于在密封式或开放式调节回路中计量液体和气体。
The current position (POS) of the electromotive valve is recorded by the position measuring system.
The position controller compares this position actual value to the set-point value (CMD) speci? ed as the standard signal.
In case of a control di? erence (Xd1), the motor control signal is sent to the actuating drive as the actuating variable.
Z1 is a disturbance value. Both valve end positions are indicated by the LED status.
 Moreover, the position actual value recorded using the position measuring system is ou
出色的调节范围及快速的反应时间
低电功率消耗
others on request (NBR, EPDM, ...) Technical ceramics Medium Neutral gases,
liquids Seat leakage based on IEC/EN 60534 ? 4 Shut-o?  class IV Pressure range1)
0–6 bar Closure time Ca. 4 sec. Medium temperature 0 to + 70 °C
Ambient temperature - 10 to + 60 °C Power supply 24 V DC ± 10 % (max. residual ripple 10 %)
Power consumption < 1 W in holding position, Max. 12 W (depending on motor control)
Duty cycle Up to 100 % (depending on ? uid and ambient temperature) Port connection G ?, G ?, G 1,
NPT ?, NPT ?, NPT 1 Typical control data2) Hysteresis
Repeatability Sensitivity Span < 5 % < 1 % FS < 1 % FS 1:100 Protection class
- valve IP50 Installation As required, preferably with actuator upright Status display LED
(details: see manual) Dimensions See drawings on page 5 Weight ~ 800 g
阀门通过步进电机驱动。
集成式电子装置显著简化了流程一体化，并且不需要使用额外的控制模块。
夹持特定的阀门孔眼时，电机不需要能源。
2) Characteristic data of control behaviour depends on process conditions
 The direct-acting motor valve of type 3285 is used for dosing of liquids
and gases in closed or open control loops.
The valve features a stepper motor as the actuator.
The integrated electronics simpli? es the process integration;
additional actuation modules are not necessary.

**BURKERT两位两通比例阀，德国宝德比例阀主要特点