The Belimo B249 is a 2 in. 2-way characterized control valve (CCV) with a stainless steel ball and stem, Cv 46 and NPT female connections. It is sold as a valve only, for use with a separately purchased Belimo actuator.
A TEFZEL® characterized disc gives the valve an equal percentage flow characteristic. Rated 400 psi body pressure and 200 psi close-off, for chilled or hot water, up to 60% glycol from 0...250°F [-18...120°C].
Best For
- Heating and cooling coils in air handling units
- Fan coil unit heating and cooling coils
- Unit ventilators
- VAV box reheat coils
- Bypass loops
- Hydronic systems with variable flow
Warranty
This Belimo characterized control valve product carries a 5-year warranty on all components from the date of production, with the first two years unconditional.
Key Features
Characterized Disc
TEFZEL® disc produces an equal percentage flow characteristic.
Pressure Ratings
400 psi body pressure rating, 200 psi close-off pressure.
Ball and Stem
Stainless steel ball, stainless steel stem, PTFE seat.
ZOT Supply is an authorized distributor of Belimo products.
Technical Specifications
| Valve: Belimo B249 | |
|---|---|
| Valve Size | 2" [50] |
| Fluid | chilled or hot water, up to 60% glycol |
| Fluid Temperature Range | 0...250°F [-18...120°C] |
| Body Pressure Rating | 400 psi |
| Close-Off Pressure (∆ps) | 200 psi |
| Flow Characteristic | equal percentage |
| Leakage Rate | 0% for A–AB |
| Pipe Connection | Internal thread NPT (female) |
| Servicing | maintenance-free |
| Flow Pattern | 2-way |
| Controllable Flow Range | 75° |
| Cv | 46 |
| Valve Body | Nickel-plated brass body |
| Stem | stainless steel |
| Stem Seal | EPDM (lubricated) |
| Seat | PTFE |
| Characterized Disc | TEFZEL® |
| O-ring | EPDM (lubricated) |
| Ball | stainless steel |
| Flow Rate @ 4 psi Pressure Drop | 92 GPM |
| Valve Weight | 2.8 lb [1.3 kg] |
| Compatible Belimo Actuator Families | |
|---|---|
| Non Fail-Safe Actuators | ARB(X) ARQB(X) ARB(X) N4 |
| Spring Actuators | AFRB(X) |
Documentation
Belimo B249 Technical Data SheetCCV Installation InstructionsCharacterized Control Valve (CCV) Technical DocumentationCCV Accessories DocumentationElectronic Valve Applications GuideBelimo Ball Valve Master FormatSuccess Story: Habitat for Humanity Home with Belimo CCVSuccess Story: New York PostSuccess Story: Sonoma State University RenovationSuccess Story: Western Wyoming Community CollegeFrequently Asked Questions
What is the Cv of the Belimo B249?
The B249 valve is rated Cv 46. At a 4 psi pressure drop it passes 92 GPM of water.
What size and pipe connection does the B249 use?
2 in. (2" [50]) with internal thread NPT (female) connections.
Does the B249 include an actuator?
No. The B249 is the valve only. Compatible Belimo actuator families: Non Fail-Safe: ARB(X) ARQB(X) ARB(X) N4; Spring: AFRB(X).
What warranty does the B249 have?
A Belimo 5-year warranty on all components from the date of production, with the first two years unconditional.
What is the close-off pressure of the B249?
200 psi close-off pressure, with a 400 psi body pressure rating.
What fluids can the B249 control?
Chilled or hot water, up to 60% glycol, fluid temperature range 0...250°F [-18...120°C].
Specifications per Belimo B249 technical data sheet (2026-02-07); flow rate per Belimo CCV Technical Documentation (P10419 - 09/13); warranty per Belimo CCV Master Format, Section 230923.11. Content updated November 2026.
- Valve Pattern:
- 2-Way
- Valve Size:
- 2 Inch
- CV Rating:
- 46
- GPM:
- 92 @ 4 psi
- Material:
- Stainless Steel
- Actuator Type:
- Valve Only
