The Watts M100D-B DI 150 UL-NC LF PILOT 24VDC 4 is a 4" lead-free globe-pattern pilot-operated deluge / fire protection control valve with Flanged connections. It features a ductile iron body and a buna-n seat. Rated to 175 psi and up to 160°F. This model is certified lead-free for potable-water installations.
This 4 inch ACV is armed with ArmorTek®, a patented 3-part advanced epoxy coating system designed to limit both microbial induced (MIC) and exposed metal substrate corrosion. This deluge valve, M100D-B, is UL listed and has a normally closed lead free 24VDC pilot. This Mustang valve style has a globe body pattern with class 150 flanged end connections.
Features
- Body construction with patented 3-part ArmorTek epoxy coating for advanced corrosion resistance
- Globe pattern with class 150 flanged end connections
- Has a normally closed lead free 24VDC pilot
- UL listed
Common Questions
- What is the maximum working pressure?
- This unit is built as 150# Flanged and is rated to 175 psi. End connection sets the ceiling on this platform, and 150# and 300# bodies are not interchangeable — confirm the class matches your flange drilling before ordering.
- What fluid temperature can the Buna-N trim handle?
- This valve is built with Buna-N elastomers, good to about 160°F. Watts offers the same body with Buna-N (to 160°F), FKM/Viton (to 250°F) or EPDM (to 300°F) — pick the elastomer for your fluid temperature, not the body.
- Is this valve UL Listed for fire protection?
- Yes — this model carries the UL listing 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: Globe
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Size: 4"
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Inlet Size: 4"
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Outlet Size: 4"
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Connection: Flanged
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Body Material: Ductile Iron
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Seat / Seal Material: Buna-N
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Pressure Class: Class 150
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Max Pressure (psi): 175
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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: M100D-B DI 150 UL-NC LF PILOT 24VDC 4
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Temperature: up to 160°F
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Certifications: UL
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Lead-Free: Yes
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Item Type: Valve
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Control Function: Deluge / Fire Protection Control
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Valve Platform: Mustang (M-Series)
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Body Pattern: Globe
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End Connection / Pressure Class: 150# Flanged
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Configured Options: Lead-Free Pilot;Normally Closed;Solenoid Pilot, 24VDC
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Coating: ArmorTek 3-Part Epoxy
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UL Listed / FM Approved: Yes
