The Watts LFF1115-74 150 FC 3 is a 3" lead-free angle-pattern pilot-operated pressure reducing control valve. It features a ductile iron body. Rated to 300 psi. This model is certified lead-free for potable-water installations.
Common Questions
- What does the "-74" low-flow bypass do?
- A large control valve cannot hold a stable outlet pressure at very low demand, so downstream pressure creeps up overnight. The -74 adds a small bypass regulator piped around the main valve that takes over at low flow and holds the setpoint, then hands back to the main valve as demand rises. It is the standard fix for night-time pressure creep on municipal and campus mains.
- Is this valve certified lead-free for potable water?
- Yes. The "LF" prefix denotes Watts lead-free construction, compliant with the weighted-average 0.25% lead requirement of the Safe Drinking Water Act (NSF/ANSI 372) for potable-water service.
Specifications
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Type: Pressure Regulator
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Size: 3"
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Inlet Size: 3"
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Outlet Size: 3"
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Body Material: Ductile Iron
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Max Pressure (psi): 300
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Operation: Pilot-Operated Diaphragm
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Country of Origin: United States
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Warranty: 1 Year Limited
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MPN: LFF1115-74 150 FC 3
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Lead-Free: Yes
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Item Type: Valve
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Control Function: Pressure Reducing (Low-Flow Bypass)
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Valve Platform: Classic (F-Series)
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Body Pattern: Angle
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Configured Options: Low-Flow Bypass
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Coating: ArmorTek 3-Part Epoxy
