Motorized proportional check valve series 290, ASCO

FEATURES
• Long service life
• Variable flow proportional to the control signal
• Ready-to-use valve
• High flow due to angled seat design
• Anti-waterhammer design (fluid entry under the disc)
• Actuator rotatable through 360°
• In option closing of the valve in case of power failure
• Fluid isolation between motorised actuator and valve body
• LED indicators for valve status display
• Valve tight at closing position (FCI 70-2 class V)
• Vacuum operation up to 10-2 mbar
• The valves satisfy Pressure Equipment Directive 2014/64/EU, article 4.3
• The proportional motorised valves comply with the essential requirements of EMC
Directive 2014/30/EU (EN-IEC 61000-6-2 et EN-IEC 61000-6-4)
• The valves satisfy all relevant EU Directives and with the provisions of the Directive
RoHS 2

MATERIALS IN CONTACT WITH THE FLUID
* make sure that the materials are suitable for the fluid

Valve body AISI 316L AISI 316L
Stuffing box housing PBT, GF reinforced AISI 316L
Stem valve AISI 316L AISI 316L
Stuffing box packing NBR FPM
Wiper seal NBR FPM
Disc seal NBR FPM

ELECTRICAL PROPERTIES:

Connector Spade plug (cable Ø 6-10 mm)
Connector specification ISO 4400 / EN 175301-803, form A

Motor consumption
12 W in operation,
< 2 W holding phase/set point position
Max. peak current: 0,7 A

Visualisation valve (switching) LED
Electrical enclosure protection IP65 (EN 60529)
Standard voltages DC (=) : 24V ±10 %, max. ripple 5%
Setpoint 0-10 V (input resistance = 10 kΩ)
4-20 mA (input resistance = 500 Ω)
Flow regulation characteristics Linearity ±5%; hysteresis < 5%; accuracy <3%;
sensitivity < 3%; repeatability <3%