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6281EV Servo-Assisted 2/2-Way Diaphragm Valve
Brand: Burkert Fluid Control Systems
The 6281 valve is a servo-assisted solenoid valve of the S.EV series. A minimum differential pressure is always required for the proper function of the valve.
Various diaphragm material combinations and methods of operation are available depending on the application.
The standard brass housing satisfies all European drinking water requirements. Dezincification-resistant brass is available for other markets. The housing offering is rounded out by a stainless steel version.
The solenoid coils are moulded with a chemically resistant epoxy. For reduced energy requirement, all coils can be delivered with electronic power reduction.
The valve can be equipped with manual override for easy maintenance and commissioning.
In combination with a plug in accordance with DIN EN 17301-803 Form A, the valves satisfy protection class IP65 - in combination with a stainless steel housing NEMA 4X.
Features
- Servo-assisted diaphragm with diameter of up to DN 50
- Vibration-proof, central screwed coil system
- Damped design for quiet closing
- Moulded housing with high surface quality
- Service-friendly manual override
Specifications
Body Material
- Stainless Steel
- Brass
Seal Material
- EPDM
- FKM
- NBR
Internal Valve Parts
- Brass
- Plastic (PPS)
- Stainless Steel
Duty Cycle
- 100 % Continuous Operation
Mounting Position
- Preferably with Actuator Upright
Coil Material
- Polyamide or Epoxy
Spring Material
- Stainless Steel, 1.4310
O-Ring Material
- EPDM
- FKM
- NBR
Diaphragm Material
- EPDM
- FKM
- NBR
Port Connection
- G 1/4" to G 2-1/2"
- Flange Dn 25 to DN 50
Medium Temperature
- EPDM: -30° to 90° C (-22° to 194° F) [with Epoxy Coil to 100° C (212° F)]
- FKM: 0° to 90° C (32° to 194° F) [(with Epoxy Coil to 120° C (248° F)]
- NBR: -10° to 80° C (14° to 176° F)
Orifice Size
- 0.511" to 1.968" (13 to 50 mm)
Flow Rate
- Water: 1.5 to 40 Kv (m³/hour)
Switching Time
- Opening: 0.1 to 1.5 s
- Closing: 0.2 to 4 s
Operating Voltage
- 230 V UC 50/60 Hz
- 24 V 50/60 Hz
- 24 Vdc
- 24 V UC
- 230 V UC
Voltage Tolerance
- ± 10 %
Approvals & Certifications
- ATEX
- IECEx
- UL/cULus
- UR/cURus
- CSA
- DNV
- DVE
- CE
- EAC
Ambient Temperature
- Maximum 85° C
Pressure Range
- psi: 2.901 to 232.1 (kPa: 20 to 1,600, bar: 0.2 to 16)
Environmental Protection
- IP65 with Terminal Box, Cable Plug & Cable Connection
