burkert 3270電動閥 Type 3270 is a direct-acting and general purpose motor valve for shut-off, used as regulating unit in control loops. burkert 3270電動閥 A linear stepper motor as actuator drives the valve, which comes in a compact and robust housing.  Analogue input signals are processed by the integrated control electronics.  Due to an elastomeric seat seal the valve closes tight up to the DN specifi c nominal pressure (see ordering chart on p. 4).  In case of power failure, the actual valve position will be kept.  The motor’s power consumption in opened or closed position is nearly zero.  Only during valve switching does the motor need power.  This key feature can reduce the energy consumption of a plant dramatically and thus make it more effi cient.

特點(diǎn)：

1. Actuator isolated from flow path
2. Low power consumption
3. Fast response times
4. Orifice sizes 2 to 6 mm

參數(shù)：

 Materials
 Body
 Housing
 Seals
 Brass or stainless steel
 PC (Polycarbonate), PPS (Polyphenylene sulfi de)
 FKM or NBR, others on request
 Medium Neutral gases, liquids
 Pressure Range 1) 0 to 6 bar
Closure time 2.5 s (0 to 100% stroke)
 Fluid temperature 0 to +70 °C
 Ambient temperature -10 to +60 °C
 Viscosity Max. 600 mm²/s (cSt)
 Power supply 24 V DC ± 10% (max. residual ripple 10%)
 Power consumption Max. 8 W (depending on motor control),
<1 W in holding position
Duty cycle Up to 100 % (depending on fl uid and ambient
temperature)
 Port connection G 1/4, G 3/8, NPT 1/4, NPT 3/8
 Electrical connection M12 connector, 8-pin, male
 Input signal Binary signal, PNP, 0-5V (log. 0, valve closed) or 10-30V
(log. 1, valve open)
Output signal Load capacity 10-30V, PNP, max. 100mA
(Output signal active, if valve is closed)
 Protection class - valve IP 50
Installation As required, preferably with actuator upright
 Status of LED White: Normal operation and powered,
Yellow: Valve opened,
 Green: Valve closed,
Red: Failure
Dimensions See drawings on page 4
Weight ~0.7 kg