2" Watts LFU5B-Z3 Pressure Reducing Valve
Item Number: 0009204
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$6,910.50
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Brand - Watts
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- Size: 2 inch
- Weight: 19.3 lb
- Body Material: Lead Free* Cast Copper Silicon Alloy
- Maximum Working Pressure: 300 psi
- Adjustable Pressure Range: 25-75 psi
- Temperature Range: 33°F - 180°F
- Connections: NPT Female Union Inlet x NPT Female Outlet
- Features: Integral stainless steel strainer, Thermal expansion bypass
- Certifications: ASSE 1003, CSA B356, IAPMO, NSF/ANSI 61-G
Description
Description
The 2 inch Watts Series LFU5B-Z3 Water Pressure Reducing Valve effectively lowers high incoming water pressure to protect residential, commercial, and industrial plumbing systems while reducing water consumption. Constructed from a Lead Free* cast copper silicon alloy body, this valve is durable and features a bypass for thermal expansion pressure control. It can handle up to 300 psi maximum working pressure, with an adjustable reduced pressure range of 25-75 psi, factory set at 50 psi. The valve is serviceable in line and includes an integral stainless steel strainer. Item 0009204.
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Connections
- The inlet side features a 2 inch NPT female union connection, designed to be easily installed onto a 2 inch NPT male threaded pipe.
- The outlet side features a 2 inch NPT female connection, designed to connect to a 2 inch NPT male threaded pipe.
This valve is installed in the water service pipe near its entrance to the building.

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Additional Details
The 2 inch Watts Series LFU5B-Z3 Water Pressure Reducing Valve reduces incoming water pressure to a safe level, protecting plumbing system components and promoting water conservation in residential, commercial, and industrial applications.
This valve features Lead Free* construction and an integral thermal expansion bypass feature.
Construction & Design
- Features a Lead Free* cast copper silicon alloy body for durability and compliance with reduced lead content requirements.
- Incorporates a Z3 sealed spring cage and stainless steel corrosion resistant adjusting cage screws, suitable for outdoor or pit installations.
- Includes an integral stainless steel strainer that is easily removed for cleaning.
- Equipped with a high temperature resistant reinforced EPDM diaphragm, suitable for both hot and cold water applications.
Performance & Features
- Designed to protect plumbing systems by reducing supply pressure up to 300 psi (20.7 bar) to an adjustable range of 25-75 psi (172-517 kPa), with a standard factory setting of 50 psi (345 kPa).
- The bypass feature permits water flow back into the main supply when outlet side pressures exceed main supply pressure due to thermal expansion.
- Features a replaceable seat module and a removable disc holder for disc replacement, allowing for quick and easy in-line serviceability without special tools or removing the valve from the line.
- Suitable for water temperatures ranging from 33°F - 180°F (0.5°C – 82°C).
Specifications
General
- Product Type: Water Pressure Reducing Valve
- Series: LFU5B-Z3
- Size: 2 inch
- Body Material: Lead Free* Cast Copper Silicon Alloy
- Seat Material: Replaceable Stainless Steel
- Integral Strainer Material: Stainless Steel
- Diaphragm Material: Reinforced EPDM
- Valve Disc Material: EPDM
- Yoke Material: Lead Free* Cast Copper Silicon Alloy
- Maximum Working Pressure: 300 psi (20.7 bar)
- Adjustable Reduced Pressure Range: 25-75 psi (172-517 kPa)
- Standard Reduced Pressure Setting: 50 psi (345 kPa)
- Temperature Range: 33°F - 180°F (0.5°C – 82°C)
Connections
- Inlet Connection Type: NPT Female Union
- Outlet Connection Type: NPT Female
Certificates & Approvals
- ASSE Standard: 1003
- ANSI Standard: A112.26.2
- CSA Standard: B356
- Southern Standard Plumbing Code: Listed
- IAPMO Listed
- NSF Certified: NSF/ANSI 61-G
FAQs
What is the primary purpose of the Watts LFU5B-Z3 Pressure Reducing Valve?
The primary purpose is to reduce high incoming water pressure to a more manageable and safe level, thereby protecting plumbing system components from damage and helping to conserve water.
What types of connections does this 2 inch valve have?
This valve features a 2 inch NPT female union inlet connection and a 2 inch NPT female outlet connection, designed for easy installation into your plumbing system.
What is the maximum working pressure this valve can handle?
The Watts LFU5B-Z3 Pressure Reducing Valve is rated for a maximum working pressure of 300 psi (20.7 bar).
What is the adjustable pressure range for this valve?
The valve allows for an adjustable reduced pressure range of 25-75 psi (172-517 kPa), with a standard factory setting of 50 psi (345 kPa).
Does this valve include a bypass feature?
Yes, it includes a bypass feature that allows water to flow back through the valve into the main supply when pressures on the outlet side exceed the main supply pressure due to thermal expansion.