The Watts M115F GRV SS 1 1/2 is a 1-1/2" globe-pattern pilot-operated pressure reducing control valve with Grooved connections. It features a ductile iron body. Rated to 300 psi.
This 1 1/2 globe pattern fire system pressure reducing valve has groove end connections. The body and cover are ductile iron. The seat, stem and spring are stainless steel. The max working pressue is 300 PSI.
Common Questions
- What is the maximum working pressure?
- This unit is built as GRV (Grooved) and is rated to 300 psi. Threaded and grooved bodies on this platform carry a higher working pressure than 150# flanged bodies, so do not assume a flanged datasheet applies here.
- Is this valve UL Listed and FM Approved for fire protection?
- Yes — this model carries the UL listing and FM approval required for fire-protection service. Non-listed control valves cannot be substituted on a fire job even when the body and pilot are otherwise identical.
Specifications
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Type: Pressure Regulator
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Size: 1-1/2"
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Inlet Size: 1-1/2"
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Outlet Size: 1-1/2"
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Connection: Grooved
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Body Material: Ductile Iron
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Max Pressure (psi): 300
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Application: Fire Protection
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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: M115F GRV SS 1 1/2
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Lead-Free: No
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Item Type: Valve
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Control Function: Pressure Reducing
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Valve Platform: Mustang (M-Series)
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Body Pattern: Globe
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End Connection / Pressure Class: GRV (Grooved)
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Coating: Fusion-Bonded Epoxy
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UL Listed / FM Approved: Yes
