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2" LF25AUB-DU-Z3 Pressure Reducing Valve, Lead Free (Double Union - FNPT Union)
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MANUALS (3)
Product Highlights
Description
Features:
- Double unions, NPT threaded female inlet and outlet
- Replaceable seat module
- Integral stainless steel strainer removable for cleaning
- Sealed spring cage with stainless steel cage screws
Specifications:
- Adjustable Reduced Pressure Range: 25 to 75
- Adjustable Reduced Pressure Range-BAR: 1.7 to 5.2
- Body Material: Lead Free Cast Copper Silicon Alloy
- Buy American Act Compliant: Yes
- Corrosion Resistant Coating: Yes
- Disc Material: EPDM
- Inlet Connection Size: 2"
- Inlet Connection Type: Female Threaded
- Inlet Thread Type: NPT
- Outlet Connection Size: 2"
- Outlet Connection Type: Female Threaded
- Outlet Thread Type: NPT
- Lead Free: Yes
- Maximum Operating Temperature: 180F
- Maximum Working Pressure-BAR: 20.70
- Maximum Working Pressure-PSI: 300
- Series: LF25AUB-Z3
- Standard Reduced Pressure Setting-BAR: 3.40
- Standard Reduced Pressure Setting-PSI: 50
- Strainer: Yes
- Strainer Material: Stainless Steel
- Thermal Expansion Bypass: Yes
- Trim Material: Bronze
- Valve Style: Standard
Specs
| Size: | 2" |
|---|---|
| Pressure Range: | 25 to 75 psi |
| Max Pressure (PSI): | 75 |
| Min Pressure (PSI): | 25 |
| Material: | Brass |
| Max Inlet Pressure: | 300 PSI |
| Temperature Range (F): | 33°F to 180°F |
| Outlet Type: | Union FNPT |
| Inlet Type: | Union FNPT |
| Lead Free: | Yes |
Contact
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Product Reviews
Most Liked Positive Review
Watts 1-1/4" Pressure Reducing Valve
Most Liked Negative Review
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Has some construction issues
I would buy it again
Fantastic
I would buy this product again
Fast delivery!
Excellent Product - Easy Install, Great Performance
I would recommend this to a friend
Good product, easy install.
I would buy again
Would buy again, but only from SupplyHouse.com
The 25 AUB is the better choice
Product Q&A
22 QuestionsQ: Is a backflow valve recommended to be installed with the pressure reducing valve? It's illustrated in the instructions but I don't see any in the customers photos.
Asked by CW 2 years ago
Add your answer
Verified Reply- SupplyHouse StaffHello, thanks for writing in. Yes, a backflow valve is recommended to be installed in line in the system along with the PRV.
Q: What thread size is the gauge fitting and does it measure outlet or inlet pressure?
Asked by Adam 8 years ago
Add your answer
Verified Reply- Supplyhouse.com TeamThe valve is 3/4" threaded inlet and outlet. The pressure range is 25 to 75 psi with the Max inlet pressure of 300 PSI but it does not measure the pressure, for that you could use a pressure gauge which you could find here: https://www.supplyhouse.com/Temperature-Pressure-Gauges-864000
Q: do you tighten the screw down for more pressure?
Asked by ken 9 years ago
Add your answer
Verified Reply- SupplyHouse StaffFrom the installation instructions, "Regulator is factory preset to 50psi (344 kPa). To adjust pressure setting, loosen the lock nut and turn the adjusting bolt clockwise to increase pressure, counterclockwise to decrease pressure."
Q: What pressure should be on the outlet side?
Asked by Pete 9 years ago
Add your answer
Verified Reply- SupplyHouse StaffIt comes preset to 50psi, but it depends on what you want at your fixtures. You can set between 25 and 75 psi.
Q: what is the overall length of this unit
Asked by dave 9 years ago
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Verified Reply- SupplyHouse Staff0009353 is 10-3/4" end to end.
Q: does this unit have a relief bypass?
Asked by bill 10 years ago
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Yes, the standard bypass feature permits the flow of water back through the valve into the main when pressures, due to thermal expansion on the outlet side of the valve, exceed the pressure in the main supply.
Q: If the pressure on the exit side exceeds the pressure on the inlet side will the flow be reversed. i.e. Will this valve allow a backflow to occur?
Asked by Har 11 years ago
Add your answer
Verified Reply- SupplyHouse StaffYes, from the product literature, "The standard bypass feature permits the flow of water back through the valve into the main when pressures, due to thermal expansion on the outlet side of the valve, exceed the pressure in the main supply."
Q: What is the maximum flow rate if I reduce the outlet pressure to 50 psi?
Asked by marc249 11 years ago
Add your answer
That depends on your input pressure. At 75psi input pressure, a 2 inch reducing valve is spec'd at 95 gpm. However, it tails off quickly. At 65 psi input, you are looking at only 45 gpm. If you need more, I would recommend you look at the U5B series where at 65 psi input you would get 85 gpm. There is a big difference in these valves and I always recommend the U5B series over the 25AUB series for just about any application.
Q: I have a Watts value now and I want to make sure this one is the same lenth. How long is the vale from end to end. Thanks
Asked by Dave 11 years ago
Add your answer
Verified Reply- SupplyHouse StaffSKU 0009309 is 6" end to end.
Q: does this valve have a thermal by-pass
Asked by sam 12 years ago
Add your answer
Yes. The standard bypass feature permits the flow of water back through the valve into the main when the pressure exceeds the main supply due to thermal expansion on the outlet side of the valve.