
Product Description
Danfoss VRB 2 2-way seated throttling control-valve body (OEM designation "VRB 2 PN16 25/10 2-way seated ext. A external-thread globe-type valve body for motorised control of District heating/cooling circulation water on heating, cooling and district-heating circuits — driven by a separately-ordered Danfoss AMV/AME electric actuator for variable-flow throttling. Valve size DN 25; PN 16; Kvs 10 m³/h; 2 ports; External Thread connection G 1 1/2; Equal percentage flow characteristic; control ratio 100:1; body Red bronze, mat. 2.1096.1 (RG5); cone Brass; stem Stainless steel; stuffing-box seal EPDM; seat leakage bubble tight design % Kvs. Media District heating/cooling circulation water (Glycolic water up to 50%), -10 °C to 130 °C. OEM P/N 065Z0177. Technical data quoted verbatim from store.danfoss.com (code 065Z0177). Deployed in process, utility and marine piping loops for on-off shutoff, control, safety relief or diversion service. No. 2.1096.1 (RG5); Standard size: VRB 2; Thread: External Thread G 1 1/2; Pressure rating: PN 16; Temperature range: -10 °C to 130 °C; HS code: 8481.80.
Technical Specifications
- Code number
- 065Z0177
- Type
- VRB 2
- Product group
- Other valves
- Gross weight
- 1.13 Kilogram
- Net weight
- 1.094 Kilogram
- Volume
- 1.701 Liter
- Application
- Heating and cooling
- Application alternative VSP
- Chilled water
- Cavitation factor
- 0.4
- Connection size
- G 1 1/2
- Connection types
- External Thread
- Control ratio
- 100:1
- Description
- VRB 2 PN16 25/10 2-way seated ext. thr
- Diameter [mm]
- 25 mm
- Differential pressure range [bar] [Max]
- 4 bar
- Flow characteristic
- Equal percentage
- Kvs values [m³/h]
- 10 m³/h
- Leakage through port max. [% Kvs]
- bubble tight design
- Media pH [Max]
- 10
- Media pH [Min]
- 7
- Media temperature [°C] [Max]
- 130 °C
- Media temperature [°C] [Min]
- -10 °C
- Medium alternative
- Glycolic water up to 50%
- Mounting version
- Flow
- Number of ports
- 2
- Permissible media
- District heating/cooling circulation water
- PN alternative VSP
- 10
- Pressure nominal [bar]
- 16 bar
- Stroke [mm]
- 15 mm
- Stuffing box sealing material
- EPDM
- Valve body material
- Red bronze, mat. No. 2.1096.1 (RG5)
- Valve cone material
- Brass
- Valve stem material
- Stainless steel
- EAN
- 5702421558928
- HS code
- 8481.80
- Nominal diameter
- DN25
Standards & Compliance
- Size / Series
- VRB 2
- Material
- Red bronze, mat. No. 2.1096.1 (RG5)
- Thread Standard
- External Thread G 1 1/2
- Pressure Rating
- PN 16
- Temperature Range
- -10 °C to 130 °C
- HS Code
- 8481.80
Compatibility & Fitment
Order a Danfoss AMV/AME linear actuator (15 mm stroke) to drive this VRB 2 body — the body ships without actuator. Two-port throttling valve. Match DN (DN 25), Kvs (10), PN (PN 16) and the external-thread connection (G 1 1/2) against the VRG/VRB data sheet before ordering; external-thread and internal-thread bodies of the same DN are not interchangeable.
Product Documentation
More from Danfoss

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Danfoss VRB 2 2-Way seated control valve body DN 50 Kvs 40 PN 16 external-thread
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Danfoss VRB 3 3-Way seated control valve body DN 15 Kvs 1.6 PN 16 internal-thread
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Danfoss VRB 3 3-Way seated control valve body DN 15 Kvs 2.5 PN 16 internal-thread
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Danfoss VRB 3 3-Way seated control valve body DN 15 Kvs 4 PN 16 internal-thread
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Technical guides
- Cross-Referencing Danfoss Refrigeration Components by IMPA and OEM Code
- Danfoss Product Code Decoder — 003Z, 013G, 017B, 023U, 027L, 032F, 060G, 060H, 065B, 065Z, 068Z, 084H, 132F, 148B Series (Complete Reference)
- Danfoss Maneurop MTZ Reciprocating Compressors — Model Range, Voltage Codes and Replacement Guide
Catalogue entry last verified: 2026-08-29. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 065Z0177?
- 065Z0177 can be ordered from cballast.com as a Danfoss 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 Danfoss product?
- The manufacturer part number is 065Z0177.
- What is the HS code for 065Z0177?
- The customs tariff (HS) code for 065Z0177 is 8481.80.
- Who manufactures 065Z0177?
- 065Z0177 is a Danfoss product in the Valves range.
- Is a datasheet available for 065Z0177?
- Yes — the 065Z0177 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 065Z0177?
- The minimum order quantity is 1.
- Is 065Z0177 available?
- Yes — 065Z0177 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).
