Buerkert valve Aggressive media

6642 p. 1/4 www.burkert.com 2/2-way Solenoid Valve, servo-assisted Type 6642 is a servo-assisted solenoid valve with a servo-diaphragm and a plastic body. A minimum differential pressure of 0.5 bar is required for full opening and closing. The valve can be removed from pipework. Type 2506 Cable plug Type 2510 ASI Cable plug • Medium separated from the actuator system • For aggressive fluids • True union and threaded connection • Can be mounted or removed radially for space- saving installation • Low power consumption Technical data Orifice DN 10 and 13 mm Body material PVC Body cap PVC Pilot valve flange PEEK Valve internal parts PVDF Seal material FKM, EPDM Media FKM Neutral media, oxidizing acid, salt solution, oil with additives All kinds of fluids which don’t attack the materials in contact with the media Media EPDM Acid to medium concentration, alkaline media Temperature media FKM EPDM See Pressure-temperature chart 0 to +50 °C 0 to +50 °C Ambient temperature 0 to +40 °C Operating voltage 24 V/DC (3.4 W) for 24 VAC, u

2/2 and 3/2-way  ipper solenoid valve for analytical applications  Only 4.5 mm wide  Medium isolation, for aggressive fluids  Direct-acting  Vacuum up to 7 bar  Short response times Technical data DN 0.4 and 0.8 mm Ori ce PEEK Body material FFKM (Simriz) Seal material Resistant to neutral and aggressive  uids and gases; Medium see Brkert resistance tabl +15 to +50! Medium temperature +10 to +50! Ambient temperature approx. 30 Internal volume Flange Port connection Plug Brkert type 250 Electrical connection 24V (12V on request) Operating voltages !10 Voltage tolerance 5.7 W Nominal power For 100% duty cycle power has to be reduced exter- nally. See accessories table and operating instructions for details. 100% continuous operation only with external power Duty cycle reduction As required; with side by side connection standard Installation polarity is adhered to IP65 Protection class 80Hz (for mechanical limit observe maximum temperature) Switching frequency 15Hz (continous with external power reduction, for more information see manual) <5ms (acc. to ISO 12238) Response times Ordering chart 1