Product Description
2/2- and 3/2-way ball valves with manual override in plastic for separating medium flow. Different body versions and materials can be ordered to suit various applications. Special feature: The ball valves are equipped with the so-called Dual Block® Technology. This system serves as a safety device for the union nuts. It prevents that the installed valve becomes loose during the operation.
Technical Specifications
- Body
- PVC-U, PP-H (PVDF, PVC-C on request)
- Seal
- PTFE/EPDM, PTFE/FKM
- PP-H
- Max. 0…10 bar
- PVC-U, PVDF, PVC-C
- 0…16 bar
- PVC-U
- 0 °C…+ 60 °C
- PVDF
- 0 °C…+ 120 °C
- PVC-C
- 0 °C…+ 100 °C
- Glued socket connection
- PVC-U
- Weld socket connection
- PP-H (PVDF and PVC-C on request)
Standards & Compliance
- HS Code
- 8481.80
Cross References
- Burkert 2657
- Buerkert 2657
- Bürkert 2657
- Type 2657
- Burkert Type 2657
Product Documentation
More from Bürkert
Bürkert
Bürkert Plastic Butterfly Valve
Type 2674
Bürkert
Bürkert T-diaphragm Valve with Manually Operated Actuator (Basic)
Type 2934
Bürkert
Bürkert Tank Bottom Diaphragm Valve with Manually Operated Actuator (Basic)
Type 2935
Bürkert
Bürkert T-diaphragm Valve with Manually Operated Actuator (FullFunction)
Type 2974
Bürkert
Bürkert Tank Bottom Diaphragm Valve with Manually Operated Actuator (FullFunction)
Type 2975
Bürkert
Bürkert Flow Transmitter / Pulse Divider
Type 8022
Bürkert
Bürkert Micro Dosing Unit for Precise Dosing in Microlitre-range
Type 7615
Bürkert
Bürkert 2/2-WAY Whisper Valve with Media Separation Type 6732
Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy Type 2657?
- Type 2657 can be ordered from cballast.com as a Bürkert catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Bürkert product?
- The manufacturer part number is Type 2657.
- What is the HS code for Type 2657?
- The customs tariff (HS) code for Type 2657 is 8481.80.
- Who manufactures Type 2657?
- Type 2657 is a Bürkert product in the Valves range.
- Is a datasheet available for Type 2657?
- Yes — the Type 2657 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for Type 2657?
- The minimum order quantity is 1.
- Is Type 2657 available?
- Yes — Type 2657 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).