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Watts ST500 Series 1/2' Bronze Standard Duty Float Valve, Male NPT Inlet & Outlet, Machined Flange, Serrated Arms, Replaceable Seals, Pivot Arm & Plunger Assembly, Max Working Temperature 180° F

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$31.28

$ 14 .99 $14.99

In Stock

1.:Female Npt Threaded Inlet


2.Size:1.5 Inch


About this item

  • STANDARD DUTY BRONZE FLOAT VALVE: The Watts Standard Duty Bronze Float Valve is a mechanical float valve that is used in applications where heavy duty isn't required, but protection and control of high water flow is still needed, such as in air conditioning, refrigeration, and irrigation systems.
  • INNOVATIVE DESIGN: These float valves boast replaceable seals, 1/2" male NPT threaded inlet and outlet connections, a cotter pivot arm assembly that provides a stable pivot point for the float arm, and a plunger assembly with seals that controls the flow of water into the tank, ensuring a tight seal when closed.
  • DURABLE CONSTRUCTION: Designed to withstand moderately rigorous conditions, the Watts Standard Duty Float Valve features a durable bronze body and high tensile manganese bronze long and short arms. It operates with a maximum working pressure of 125 psi (8.7 bar) and a maximum working temperature of 180° F (82° C).
  • EASY ADJUSTMENT: Equipped with serrated arms, these float valves allow for easy and precise adjustment of the water level, which ensures that you can maintain optimal water levels with minimal effort, enhancing the efficiency of your water management system. Additionally, this 1/2" valve can be conveniently tank wall-mounted.
  • EVERY DROP COUNTS: Water. It's in our name and close to our hearts. Since 1874, Watts Water Technologies has been delivering innovative technologies that make the world's most precious resource safe and accessible. Everything we design is made to keep the Earth's most precious resource safer, cleaner, and more useful for our customers. Our family of brands offers one of the most varied product lines in the world, with world-class, water-related solutions.


The Watts 1/2" Standard Duty Bronze Float Valve is a mechanical float valve that is used in applications where heavy duty isn't required, but protection and control of high water flow is still needed, such as in air conditioning, refrigeration, and irrigation systems.
These float valves boast replaceable seal and 1/2" male NPT threaded inlet and outlet connections. Furthermore, their cotter pivot arm assembly provides a stable pivot point for the float arm, securely holding it in place and allowing it to be adjusted to set the desired water level. Meanwhile, the plunger assembly with seals controls the flow of water into the tank, helping the plunger withstand water pressure and ensuring a tight seal when closed.
Crafted from durable bronze, the Watts Standard Duty Bronze Float Valve is built to last. The high tensile manganese bronze long and short arms provide additional strength and resilience. It operates efficiently at a maximum working pressure of 125 psi (8.7 bar) and can handle temperatures up to 180° F (82° C), making it suitable for a variety of settings.
Additionally, these float valves are equipped with serrated arms, which allow for easy and precise adjustment of the water level, a functionality that ensures that optimal water levels are maintained with minimal effort, significantly enhancing the efficiency of your water management system. This valve can be conveniently tank wall-mounted as well, providing versatility in installation options and meeting the demands of various systems with ease.


Genie
2025-09-04 17:26:25
Ordered to replace a broken part in our well system. This is well built and will last.
Tech Exec
2025-08-22 17:09:42
Purchased to replace a swimming pool fill valve, but I’m going to have to replace it after only a couple weeks. The valve seemed very stiff out of the box, and I’m finding it creates a strong water hammer effect once installed. Funny that the old valve it replaced was basically just a toilet float valve; it worked effectively but eventually broke, and I thought going to a more robust bronze valve would be better, but I think I’ll just go back to the simple valve. Combined with the float and stainless arm, this was a waste of $70.
Francisco alcala
2025-08-15 10:45:53
The media could not be loaded.
Pedro A. Zapata
2025-08-02 11:43:33
Defective product. Would not seal properly and shut off water flow.
CRAIG
2025-06-24 11:00:45
Faulty from the start! Rubber will not seal tight enough to stop the water flow at 42 psi. No matter how much you adjust the float the water will not stop flowing. waste of time and money. Poor quality control!
Rodney Kindlund
2025-06-16 14:06:01
A good quality valve for water storage tank.
Phillip J. Hinker
2025-05-29 14:25:37
Product came right away when there was a shortage. Good quality product.
Nikolai C.
2025-05-21 20:32:23
arrived broken, had to weld it together
Paul
2025-04-07 14:56:10
Re-ordered this valve for the second time because first order was wrong size ( sent 3/4 inch).Received second order and valve is again not 1 inch but 3/4 inch.Sent second valve back for refund, but had to put 1st valve in service as I needed somethingto get project working.
Genie
2025-04-05 12:38:36
Ordered to replace a broken part in our well system. This is well built and will last.
Tech Exec
2025-03-25 18:55:53
Purchased to replace a swimming pool fill valve, but I’m going to have to replace it after only a couple weeks. The valve seemed very stiff out of the box, and I’m finding it creates a strong water hammer effect once installed. Funny that the old valve it replaced was basically just a toilet float valve; it worked effectively but eventually broke, and I thought going to a more robust bronze valve would be better, but I think I’ll just go back to the simple valve. Combined with the float and stainless arm, this was a waste of $70.
Francisco alcala
2025-03-22 10:27:44
The media could not be loaded.
Pedro A. Zapata
2025-03-12 10:15:46
Defective product. Would not seal properly and shut off water flow.
CRAIG
2025-03-06 10:36:01
Faulty from the start! Rubber will not seal tight enough to stop the water flow at 42 psi. No matter how much you adjust the float the water will not stop flowing. waste of time and money. Poor quality control!
Rodney Kindlund
2025-02-20 17:33:57
A good quality valve for water storage tank.
Phillip J. Hinker
2025-02-13 11:25:19
Product came right away when there was a shortage. Good quality product.
Nikolai C.
2025-01-23 16:49:30
arrived broken, had to weld it together
Paul
2024-12-25 15:41:53
Re-ordered this valve for the second time because first order was wrong size ( sent 3/4 inch).Received second order and valve is again not 1 inch but 3/4 inch.Sent second valve back for refund, but had to put 1st valve in service as I needed somethingto get project working.