21389 — Buerkert Type 0256 2/2-way-solenoid valve; direct acting
KKM Solutions is an independent parts distributor, not an authorized Buerkert dealer — how we source.
Buerkert 21389 - Solenoid Valves - Weight: 1.65 Lb; Valve function: A - normally closed - inlet port 1 (P/NC); Type: 0256.
Overview
Part number 21389 from Buerkert, listed in Directional Solenoid Valves & Manifolds. Specifications on file: AC voltage Yes; Actuator type Plunger valve; Analysis version No; Back-pressure-resistant version No. KKM Solutions quotes this part with pricing and availability confirmed per order.
The 21389 from Buerkert is listed under Solenoid Valves in our catalog. The manufacturer's published data for this part number specifies Weight: 1.65 Lb and Valve function: A - normally closed - inlet port 1 (P/NC).
Published specifications for this part include Type: 0256; Actuator type: Plunger valve; Operation: direct-acting; AC voltage: Yes; Coil Size: 40 mm; Mounting Type: Mounting bracket; Installation length: 56 mm; Fluidic port connection number: 2; Valve function number of switching positions: 2; Manual actuation: No; Port connection 1 type: Internal thread; Port connection 1 thread marking: 3/8. The complete technical table is shown in the Specifications tab on this page.
Specifications
| AC voltage | Yes |
|---|---|
| Actuator type | Plunger valve |
| Analysis version | No |
| Back-pressure-resistant version | No |
| Battery voltage | No |
| Cable plug art. no. - type | 00008376 - 2508 |
| Cable plug in delivery | enclosed |
| Coil insulation material (encasement) | Epoxy |
| Coil Size | 40 mm |
| Coil type | block bolted |
| Coil wiring overvoltage protection | without |
| Coil wiring polarity recovery diode | No |
| Coil wiring rectifier | No |
| Commodity Code | 84818079 |
| DC voltage | No |
| Electrical connection number of contacts | 2 + Grounding conductor |
| Electrical connection position | in direction of flow left |
| Electrical connection sort | Plug pattern form A according to DIN EN 175301-803 |
| Flow | Above seat |
| Fluidic port connection number | 2 |
| Installation length | 56 mm |
| Kv value (water) | 0,5 m3/h |
| Low-noise version | No |
| Main valve operating principle | Globe valve |
| Main valve orifice 1 (inch) | 5/32 inch |
| Main valve orifice 1 (P) (mm) | 4 mm |
| Main valve wetted material | Brass |
| Main valve with integrated screen | No |
| Manual actuation | No |
| Media separation | No |
| Medium-contacting part core material | Stainless steel |
| Medium-contacting part stopper material | Stainless steel |
| Mounting Type | Mounting bracket |
| Nominal operation/Duty cycle | 100 % |
| Nominal pressure max (liquid) | 12 bar |
| Nominal pressure min | 0 bar |
| Oil burner valve | No |
| Operation | direct-acting |
| Port connection 1 thread marking | 3/8 |
| Port connection 1 thread type | G |
| Port connection 1 type | Internal thread |
| Port connection 2 thread marking | 3/8 |
| Port connection 2 thread type | G |
| Port connection 2 type | Internal thread |
| Protection type IP (max. with suitable connector) | IP65 |
| QNn value (gas) | 540 l/min |
| Rated power consumption | 10 W |
| Sealing toward outside material | NBR (Nitrile rubber) |
| Seat seal material | NBR (Nitrile rubber) |
| Seat seal material category | Elastomers |
| Steam version | No |
| Switch function | on/off |
| Switch time close max. | 30 ms |
| Switch time close min | 20 ms |
| Switch time open max. | 20 ms |
| Switch time open min | 10 ms |
| Temperature environment max | 55 °C |
| Temperature environment min | -10 °C |
| Temperature medium max | 90 °C |
| Temperature medium min | -10 °C |
| Thermal insulation class of the actuator | H |
| Type | 0256 |
| Vacuum version | Yes |
| Valve construction | Valve complete |
| Valve function | A - normally closed - inlet port 1 (P/NC) |
| Valve function number of switching positions | 2 |
| Valve setting closing time | No |
| Valve setting opening time | No |
| Voltage max / rated voltage | 110 V |
| Voltage min / rated voltage | 110 V |
| Voltage tolerance negative | 10 % |
| Voltage tolerance positive | 10 % |
| Weight | 1.65 Lb |
Product details
| Manufacturer | Buerkert |
|---|---|
| Manufacturer part number | 21389 |
| Product category | Directional Solenoid Valves & Manifolds |
| Published specifications | 73 attributes listed |
Request a quote for this part
Email orderdesk@kkmsolutions.com or call (825) 454-5367 for pricing and availability.
Frequently Asked Questions
How do I get pricing for 21389?
This part is quoted on request, so no price is listed for it here. Send the quote form on this page with your quantity, or email orderdesk@kkmsolutions.com, and our order desk will reply with pricing and availability within 1 business day.
Who manufactures the 21389?
21389 is made by Buerkert and is listed in our Directional Solenoid Valves & Manifolds category. KKM Solutions is an independent distributor, not an authorized Buerkert dealer: we source the exact Buerkert part number 21389, and the quote confirms condition and lead time before you order.
Is the 21389 new and genuine?
Parts we supply are new and genuine unless the quote expressly states otherwise. Where a part is new-old-stock, from excess inventory, refurbished or open-box, the quote says so before you approve it.
What warranty comes with the 21389, and can I return it?
Parts we supply are warranted against manufacturing defects for 1 year from the date of delivery; where the manufacturer's own warranty is longer, the manufacturer's warranty applies. The warranty covers repair, replacement, or credit of the defective part and does not cover normal wear items, misapplication, improper installation, or consequential damages. Contact us within 30 days of delivery before returning anything — all returns need a return authorization from the order desk.
What is the lifecycle status of 21389?
No published lifecycle status is on file for 21389. Buerkert lists whether a catalog number is current, superseded or end-of-life on its own product page, and our order desk confirms the status with the manufacturer at quote time, before you commit. Send the part number through the quote form on this page.
What are the key specifications of 21389?
Key specifications include AC voltage: Yes; Actuator type: Plunger valve; Analysis version: No; Back-pressure-resistant version: No. The full specification table on this page lists every published attribute for this part.
What voltage does 21389 use?
Per the published specification for 21389: Battery voltage: No; DC voltage: No. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
What is the power rating of 21389?
Per the published specification for 21389: Rated power consumption: 10 W. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
What thread or connection does 21389 use?
Per the published specification for 21389: Port connection 1 thread marking: 3/8; Port connection 1 thread type: G. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
How quickly can 21389 ship?
Lead time for 21389 is quoted per order and confirmed on your quote, which our order desk sends within 1 business day. For a line-down emergency, call the 24/7 order desk at (825) 454-5367.
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