This 1-1/2″ vertical float valve industrial design is engineered for applications where standard float valves fall short. The vertical design handles turbulent and volatile tank conditions that would cause horizontal valves to chatter or fail, while the compact footprint fits tanks where space is limited.
Ideal Applications:
- Industrial process and holding tanks
- High-volume water storage tanks
- Agricultural and livestock watering systems
- Car wash water supply tanks
- Irrigation holding tanks
- Municipal water storage
Key Features:
- Smooth positive shutoff eliminates chatter in turbulent conditions
- Only requires 3/4″ water level change before activation
- Wide operating range: 5–110 PSI
- High flow capacity: up to 253 GPM at 110 PSI
- Compact vertical design for tight tank installations
- 1-1/2″ FPT inlet and outlet
Flow Rate Chart:
| PSI | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 |
| Flow Rate (GPM) | 67 | 111 | 145 | 166 | 182 | 191 | 220 | 231 | 244 | 246 | 253 |
What’s Included:
S3-150 vertical float valve industrial
Replacement diaphragm (72-D-P)
1-1/4″ x 3/4″ NPT reducer — ready to install on standard 3/4″ pipe
Important Note:
This is an end-of-life product with limited remaining inventory. When stock is gone it will not be reproduced. Replacement diaphragms (72-D-P) remain available.
Specifications:
Inlet/Outlet: 1-1/2″ FPT
Operating Pressure: 5–110 PSI
Max Flow Rate: 253 GPM at 110 PSI
Activation: 3/4″ water level change
Replacement Diaphragm: [72-D-P](https://clevelandvalveco.com/product/1-1-2-diaphragm/)
SKU: S3-150
Why Cleveland Valve Company?
With over 50 years supplying industrial and agricultural markets, we ship fast from Hudson, Ohio. This valve represents proven engineering — we’re simply moving remaining inventory to make way for new product lines.
For more on float valve selection for industrial tank applications, see this guide to float valves in industrial settings


















