Bürkert
Direct-acting 2-way basic proportional valve
Type 2861 / Ident No. 249896
Product description
Type 2861 is an extremely compact solenoid control valve and is available with an orifice up to 2mm. It is based on the standard version of Type 2871. It is used as an actuator in closed control loops (pressure, flow, temperature, etc.). Compared with the standard version, the valve is essentially of simpler construction and assembly and testing procedures are optimized, easing high volume series production with shorter delivery times.
- Commodity Codes
- 84818079
- Country
- DE
Technical attributes
Name |
Value |
Unit |
|---|---|---|
| Type | 2861 | |
| Valve function | A - normally closed - inlet port 1 (P/NC) | |
| Fluidic port connection number | 2 | |
| Valve function number of switching positions | 2 | |
| Actuator type | Plunger valve | |
| Operation | direct-acting | |
| Main valve operating principle | Globe valve | |
| Switch function | constant | |
| Main valve orifice 1 (P) (mm) | 1 | mm |
| Main valve orifice 1 (inch) | 1/32 inch | |
| Sealing toward outside material | FKM (Fluor rubber) | |
| Seat seal material category | Elastomer | |
| Seat seal material | FKM (Fluor rubber) | |
| Main valve wetted material | Brass | |
| Core guide | Sliding ring | |
| Core guide 2 | Bush | |
| Vacuum version | No | |
| Analysis version | No | |
| Oxygen version | No | |
| Steam version | No | |
| Media separation | No | |
| Flow | Below seat | |
| Port connection 1 type | Inner thread | |
| Port connection 1 thread type | G | |
| Port connection 1 thread marking | 1/8 | |
| Port connection 2 type | Inner thread | |
| Port connection 2 thread type | G | |
| Port connection 2 thread marking | 1/8 | |
| Voltage / rated voltage | 24 | V |
| Voltage / rated voltage | 24 | V |
| AC voltage | No | |
| DC voltage | Yes | |
| Voltage tolerance positive | 10 | % |
| Voltage tolerance negative | 10 | % |
| Coil type | block bolted | |
| Coil insulation material (encasement) | Epoxy | |
| Coil size | 20 | mm |
| Coil resistance | 82 | Ohm |
| Protection type (IP max. with suitable connector) | IP65 | |
| Thermal insulation class of the actuator | H | |
| Rated power consumption | 5 | W |
| Electrical connection sort | Plug pattern form B according to industrial standard | |
| Electrical connection number of contacts | 2 + Grounding conductor | |
| Electrical connection type | male | |
| Cable plug in delivery | not included | |
| Electrical connection position | in direction of flow left | |
| Kv value (water) | 0,027 | m3/h |
| QNn value (gas) | 29 | l/min |
| PWM frequency min. | 650 | Hz |
| PWM frequency max. | 800 | Hz |
| Operating range | 1:25 | |
| Nominal operation/Duty cycle | 100 | % |
| Nominal pressure min | -1 | bar |
| Nominal pressure max | 10 | bar |
| Differential pressure max | 10 | bar |
| Temperature medium min | -10 | °C |
| Temperature medium max | 90 | °C |
| Temperature environment min | -10 | °C |
| Temperature environment max | 55 | °C |
| Mounting position | any | |
| Medium-contacting part core material | Stainless steel | |
| Medium-contacting part stopper material | Stainless steel | |
| Medium-contacting part core guide tube material | Stainless steel | |
| Medium-contacting part core guide element 1 material | Stainless steel | |
| Medium-contacting part core guide element 2 material | Stainless steel | |
| suitable for liquid media | Yes | |
| suitable for gaseous media | Yes | |
| Weight | 0,120000 | kg |
Downloads
Data Sheets
Description |
Filesize |
Language / Country |
|
|---|---|---|---|
|
Type 2861 data sheet | electromagnetic operated proportional valve | 675 kB | EN / EU |
|
|
Typ 2861 Datenblatt | elektromagnetisch betätigtes Proportionalventil | 742 kB | DE / DE |
User Manuals
Description |
Filesize |
Language / Country |
|
|---|---|---|---|
|
|
Operating Instructions Type 2861 286X 287X | Proportional valves with control electronics | 388 kB | EN,FR,DE / EU |
|
|
Supplement Type 8605 2836 2861 2863 2865 2871 2873 2875 6024 6223 | PWM frequencies | 79 kB | EN,FR,DE / EU |
EU Declaration of Conformity
Description |
Filesize |
Language / Country |
|
|---|---|---|---|
|
|
EU-DoC|EU Declaration | 891 kB | EN,FR,DE |
Interactive Animation
Description |
Filesize |
Language / Country |
|
|---|---|---|---|
|
|
3D-Animation - 2861 | 1 MB | DE |
|
|
3D-Animation - 2861 | 1 MB | EN |