Watts LFB6090-SS 4 Lead-Free Ball Valve, Bronze, NPT

The Watts LFB6090-SS 4 is a 4" lead-free 2-piece full port ball valve with NPT connections. It features a bronze body and a ptfe seat. Rated to 600 psi and 0°F to 400°F. This model is certified lead-free for potable-water installations.

This 4 inch 2-piece full port lead free bronze ball valve with stainless steel ball and stem and NPT threaded end connections is used in commercial and industrial applications for a full range of liquids and gases. A full port orifice ensures minimal pressure drop, while the stainless steel ball and stem provide lasting service. It consists of Durafill (carbon glass filled PTFE) seat, bottom loaded blowout proof stem and adjustable stem packing. This ball valve is rated for 400 WOG/150 WSP.

Features

• Full port design
• Stainless steel ball and stem
• NSF 61 and 372 certification
• 400 WOG, 125 WSP Rating
• NPT threaded end connection
• White handles for easy lead free identification

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?

Yes. It is a lead-free model certified to NSF/ANSI 61 and NSF/ANSI 372, so it meets the Safe Drinking Water Act limit for potable-water 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: NPT
• Body Material: Bronze
• Seat / Seal Material: PTFE
• Max Pressure (psi): 600
• Port Style: Full
• Ways: 2-Way
• Country of Origin: China
• Warranty: 1 Year Limited
• MPN: LFB6090-SS 4
• Temperature: 0°F to 400°F
• Certifications: NSF-61, NSF-372
• Lead-Free: Yes
• Valve Construction: 2-Piece
• Ball Material: Stainless Steel
• Stem Material: Stainless Steel
• Blowout-Proof Stem: Yes
• Handle Type: Lever
• Actuation: Manual
• Fuel Gas Rated: No
• Integral Drain / Waste Port: No