Genuine KSB
KSB BOA-H Bellows-Sealed Globe Valve
Flanged globe valve with a metal bellows at the stem, for hot water heating, air-conditioning and boiler feed lines.

Key technical data
| KSB type series | BOA-H |
|---|---|
| Model code prefix | BOA-H |
| Pump or valve type | Bellows-sealed globe valve |
| Nominal pressure | PN 16 / PN 25 |
| Largest nominal size | DN 350 |
| Maximum fluid temperature | 350 °C |
Maximum values of the KSB type series; the rating of each model depends on size, material and build.
Genuine, original KSB with a 12-month warranty. Typical lead time about 6 weeks from order confirmation.
Request a QuoteDesign features
- When the valve is fully open, the bellows sits inside the valve body, protected from pressure surges.
- Position indicator with travel stop and locking device outside the insulation: the disc position can be checked at any time.
- Throttling plug as standard up to DN 100; a seat-guided V-port plug is available for all sizes.
- PN 16 and PN 25, up to DN 350, fluid temperature up to 350 °C.
Typical uses
- Hot water heating systems
- Air-conditioning systems
- Boiler feed applications
- Boiler recirculation
What to send for a quote
- Nominal size (DN) and pressure class (PN)
- Body material, if you have a preference
- Fluid and operating temperature
- Quantity and delivery country
Other KSB pumps & valves

KSB Etanorm SYT
Thermal oil pump, horizontal end-suction

KSB Etanorm RSY
Large thermal oil pump, horizontal end-suction

KSB Etabloc SYT
Thermal oil pump, close-coupled

KSB Etabloc
Standard pump, close-coupled

KSB HPK-L
Hot water and thermal oil pump, air-cooled

KSB BOA-S
Flanged Y-strainer