Watts FBV-3C 4 Ball Valve, Brass, FNPT

The Watts FBV-3C 4 is a 4" 2-piece full port ball valve with female FNPT connections. It features a brass body and a ptfe seat. Rated to 600 psi.

This 4 inch 2-piece threaded full port brass ball valve, model FBV-3C, is used in commercial and industrial applications for a full range of liquids and gases. It features a bottom-loaded blowout-proof stem, virgin PTFE seat, thrust washer, and adjustable stem packing gland, stem packing nut, chrome plated brass ball, brass adapter and steel handle.

Features

• NSF approved
• Full port
• Bottom loaded blowout proof stem
• Made of durable brass

Common Questions

Is this full port or standard port?

Full port. The ball bore matches the 4" pipe ID, so the valve adds almost no restriction — the right choice for pump suction, main shutoffs, and any run where you cannot give up head.

Can I use this on natural gas or propane?

No. This valve carries no fuel-gas listing, and code requires an ANSI Z21.15 / CSA listed valve for natural gas or LP. Use a Watts GBV series gas ball valve instead.

Is this rated for potable water?

No. This is a leaded model and cannot be installed in US potable-water systems. Watts builds a lead-free (LF-prefix) equivalent for potable service.

Can it be serviced without cutting it out?

No. A 2-piece body is not designed for in-line rebuild; it is replaced as a unit. Choose a three-piece valve (LFB6800 / S-6800 series) where in-line serviceability matters.

Specifications

• Type: Ball
• Size: 4"
• Inlet Size: 4"
• Outlet Size: 4"
• Connection: FNPT
• Connection Gender: Female
• Body Material: Brass
• Seat / Seal Material: PTFE
• Max Pressure (psi): 600
• Port Style: Full
• Ways: 2-Way
• Country of Origin: Mexico
• Warranty: 1 Year Limited
• MPN: FBV-3C 4
• Certifications: UL, FM
• Lead-Free: No
• Valve Construction: 2-Piece
• Ball Material: Chrome-Plated Brass
• Blowout-Proof Stem: Yes
• Handle Type: Lever
• Actuation: Manual
• Fuel Gas Rated: No
• Integral Drain / Waste Port: No