Watts Premier WP596816 Replacement Sensor Valve Kit for for Watts Hot Water Recirculating Pump, Silver

Watts Premier WP596816 Replacement Sensor Valve Kit for for Watts Hot Water Recirculating Pump, Silver

Q: So what this does is move the hot water through the pipes constantly, not just when you need it? Seems like an energy suck. Is it?

If you run this all the time you will likely increase your water heating costs significantly as you are turning your pipes into a big radiant heater. You can use the built in timer to only have it come on at set periods, but this will only work if you have a very fixed schedule. I attacked this another way. I plugged the unit into a TP-Link HS110 Smart plug that is Alexa controlled. I can just say turn on hot water pump or turn off hot water pump when I want to control it. But that was not good enough for me. I found that if this pump ran for four minutes it would give me hot water at the distant shower that I wanted, so I did the following. I wrote a routine to turn on the pump, wait four minutes and then turn it off. While I can run this by voice, I bought the new Amazon Alexa Button, they are about $14 for a two pack. The button is battery operated and communicates to another Alexa device. Just before I take a shower I push the button and within four minutes the water will be hot without having to run water.

Q: If the pump is on, and the water is hot, the sensor valve closes, right? Isn't the pump trying to push water against a totally closed line?

The pump just stirs water in the pump housing. It's not a positive displacement pump, so it has no problem doing that. But most of the time the control valve allows a trickle of hot water to flow, just enough to keep the faucet temperature at a constant 100°.

Q: can i used without the sensor valve

The control valve keeps the water temperature at the faucet at 100° by slowing the flow to a trickle. If you don't use the control valve, be prepared for the hot water to circulate at full speed and the temperature at the faucet to go up to whatever your water heater is set for.

Q: Does this shut down the flow completely once temperature is reached or will it continue to trickle water into the cold water line?

The valve allows a slow flow of water back through the cold water line, enough to maintain the temperature at the faucet at about 100°F. If you let the hot water run, the temperature at the faucet goes over 100°F, and the valve shuts off the back flow through the cold water line. After the faucet is shut off, the water in the valve will cool to below 100°F, and the valve will crack open and allow some flow to keep the water warm. The valve does not bang open and shut. It opens more or less, as needed to keep the water warm at the faucet. It doesn't depend on the temperature set at the water heater, except that if the water is very hot, obviously it takes less to keep the water warm at the faucet. The valve accomplishes this automatically.

Product ID: 156675630

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Details

Material
Stainless
Brand
Watts Premier
Item dimensions L x W x H
30.5 x 5.1 x
Exterior finish
silver
Inlet connection type
Flange
Outlet connection type
Compression

🔧Includes 12-inch supply lines with fittings

⚙️1/2 inch MPT sensor valve connection

🛠️Easy installation, no extra pumps needed

Frequently Bought Together

Watts Premier Replacement Sensor Valve Kit for 500800, 500805, HWRS-WH Watts Instant Hot Water Recirculation System, Two 12" Supply Lines, Two Reduced Fittings 1/2" FTP - 3/8" MPT, Two Mounting Screws

WP596816 Sensor Valve Kit Fit for watts premier 500800&500805 & grundfos up comfort Instant Hot Water Recirculating Pump System, Include Two 12" Supply Lines & Two 1/2" x 3/8" Reduced Fittings

Description

🚿 Upgrade your hot water flow—effortless, efficient, essential!

PLUG AND PLAY SETUP - No additional pumps required—get your system running in minutes
PRECISION SENSOR VALVE - Seamlessly fits 1/2 inch MPT connections for reliable hot water control
COMPLETE INSTALLATION KIT - Includes two 12-inch supply lines and mounting screws for a hassle-free setup
OPTIMIZED FOR BRANCHED LINES - Additional sensor valve supports complex hot water recirculation layouts
DURABLE STAINLESS STEEL BUILD - Engineered for longevity and corrosion resistance in your plumbing system

The Watts Premier WP596816 Replacement Sensor Valve Kit is a stainless steel plumbing upgrade designed for hot water recirculating pumps. Featuring a 1/2 inch MPT sensor valve, two 12-inch supply lines with fittings, and mounting screws, it ensures easy installation without the need for extra pumps. Ideal for branched hot water lines, this kit offers durable, precise control to enhance your home's water efficiency.

Specifications

Manufacturer	Watts
Part Number	WP596816
Product Dimensions	30.48 x 5.08 x 5.08 cm; 385.55 g
Item model number	WP596816
Colour	Silver
Style	Kit
Material	Stainless Steel
Item Package Quantity	1
Number of Pieces	5
Batteries included?	No
Batteries Required?	No
Item Weight	386 g

Have a Question? See What Others Asked

So what this does is move the hot water through the pipes constantly, not just when you need it? Seems like an energy suck. Is it?

If the pump is on, and the water is hot, the sensor valve closes, right? Isn't the pump trying to push water against a totally closed line?

can i used without the sensor valve

Does this shut down the flow completely once temperature is reached or will it continue to trickle water into the cold water line?

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