PN16
BURKERT 20046930 Type 6281 is a servo-assisted 2/2-way normally open (Circuit Function B) diaphragm solenoid valve. A minimum differential pressure is always required for the valve to function. This specific configuration features a brass body, FKM seal, G 1 1/4 internal thread, and an energy-saving 24V AC/DC Kick and Drop coil. It is designed for controlling, shutting off, and dosing neutral media with a viscosity of up to 21 mm²/s.
Features
- Servo-assisted diaphragm valve up to DN 50
- Vibration-resistant, centrally screwed coil system
- Damped design for quiet closing
- Energy-saving double coil technology with Kick and Drop variant
Circuit Function
Circuit Function B (CF B): 2/2-way solenoid valve, servo-controlled, normally open.
Technical Data
| Property | Value |
|---|---|
| Orifice | DN 40 |
| Port Connection | G 1 1/4 |
| Kv Value (Water) | 23 m³/h |
| Pressure Range | 0.2 ... 16 bar |
| Voltage | 24 V AC/DC |
| Body Material | Brass |
| Seal Material | FKM |
| Medium Temperature | 0 °C ... +120 °C |
| Ambient Temperature | Max. +70 °C (max. 30 switching operations/min) |
| Degree of Protection | IP65 with cable plug |
Material Specifications
| No. | Element | Material |
|---|---|---|
| 1 | Coil | Epoxy |
| 2 | Stopper | Stainless steel 1.4113 |
| 3 | Shading ring | Cu (brass variant) |
| 4 | Magnetic core | Stainless steel 1.4113 |
| 5 | O-ring | FKM |
| 6 | Core seal | FKM |
| 7 | Spring | Stainless steel 1.4310 |
| 8 | O-ring | FKM |
| 9 | Diaphragm | FKM |
| 10 | Diaphragm holder | PPSGF40 |
| 11 | Valve body | Brass acc. to DIN EN 50930-6 |
Dimensions
Threaded Variant
Note: Dimensions in mm. The dimensions F1 and G1 apply to G thread.
| DN | A | B | C | D | E | F1 | G1 | L | SW |
|---|---|---|---|---|---|---|---|---|---|
| 40 | 120.1 | 145.1 | 99 | 114 | 61 | 20 | G 1 1/4 | 126 | 50 |
Type Label
| 1 Type | 2 Circuit function |
|---|---|
| 3 Orifice | 4 Sealing material |
| 5 Body material | 6 PN |
| 7 Connection type | 8 Power |
| 9 Frequency | 10 Voltage |
| 11 Manufacture code | 12 Article number |
Safety Instructions
Danger from high pressure: Before loosening lines and valves, turn off the pressure and vent the lines.
Danger due to electrical voltage: Before reaching into the device or the system, switch off the power supply and secure it against reactivation. Observe the applicable accident prevention and safety regulations for electrical devices.
Risk of burns/fire: Keep the device away from highly flammable substances and media and do not touch with bare hands if operated continuously.
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