Data Sheet

Type 3285
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1. General Technical Data
1.1. General
Product properties
Dimensions Detailed information can be found in chapter “3. Dimensions” on page 5.
Material
Fluid body Brass or stainless steel
Valve body PC (Polycarbonate), PPS (Polyphenylene sulde)
Seal NBR for liquids
EPDM for liquids and special gases (e. g. ammonia, acetylene),
FKM for neutral gases
Seat sealing Technical ceramics
Weight ~ 800g (DN8) … 1500g (DN25)
Status display LED (Detailed information can be found in the instruction manual)
Performance data
Nominal operating mode Up to 100 % (depending on uid and ambient temperature)
Typical values of positioning behaviour
1.)
Hysteresis < 5 % of end value
Response sensitivity < 1 % of end value
Setting range 1:100
Repeatability < ± 2 %
Pressure range
2.)
0…6bar (see “5.2. Pressure range” on page 9)
Closing time Ca. 4s
Electrical data
Operating voltage 24VDC ± 10 % (max. residual ripple 10 %)
Power consumption < 1W in holding position
Max. 12W (depending on motor control)
Medium data
Operating medium Neutral gases, liquids
Medium temperature 0 °C…70 °C
Viscosity (max.) 80mm²/s (cSt)
Process/Port connection & communication
Port connection size G ½, G ¾, G1, NPT ½, NPT ¾, NPT1
Environment and installation
Installation position As required, preferably with actuator upright
Ambient temperature - 10 °C…+ 60 °C
Degree of protection IP50
1.) Characteristic data of control behaviour depends on process conditions.
2.) Pressure data [bar]: Overpressure with respect to atmospheric pressure