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Watts LFB6400 User Manual

Series lfb6400, Lead free, For commercial and industrial applications

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Series LFB6400

2-Piece, Standard Port, Lead Free*

Ball Valves with Mounting Pads

Sizes:

1

4

" – 4" (8 – 100mm)

Series LFB6400 2-Piece, Standard Port, Lead Free Ball Valves

come standard with actuator mounting pads, Durafill

®

(carbon/

glass filled PTFE) seats, bottom loaded blowout proof stem,

chrome plated brass ball, and adjustable stem packing to pro-

vide lasting service for a wide range of liquids and gases. The

LFB6400 features Lead Free* construction to comply with

Lead Free* installation requirements.

Features

•   Excellent for throttling and balancing applications of non-

abrasive fluids where minimum flow is 20% to 100% of valve

capacity

•   Actuator mounting pads
•   Durafill

®

(carbon/glass filled PTFE) seats are standard for lon-

ger lasting seats in high or low temperature applications

•   Blowout proof pressure retaining stem
•   High cycle life reinforced PTFE stem packing seal and thrust 

washer

•   Vinyl insulator on heavy duty, zinc-plated, carbon steel handles
•   Adjustable stem packing gland

Specifications

A 2-piece, standard port, Lead Free* copper silicon alloy ball 

valve to be installed as indicated on the plans. Valve shall have

Lead Free* copper silicon alloy body, stainless steel ball, stain-

less steel blowout proof stem, glass filled PTFE seats, PTFE

stem packing, PTFE stem thrust bearing, and adjustable pack-

ing nut. Top loaded stems or valves without adjustable packing

are not acceptable. Pressure rating no less than 600psi (41

bar) WOG non-shock; 150psi (10 bar) WSP for sizes 

1

4

" – 2"

and 400psi (28 bar) WOG non-shock; 125psi (8.6 bar) WSP for

sizes 2

1

2

" – 4". Lead Free* Ball Valves shall be constructed

using Lead Free* materials. Lead Free LFB6400 shall comply

with state codes and standards, where applicable, requiring

reduced lead content. Valve must conform to MSS-SP-110

and shall be a Watts Series LFB6400.

For Commercial and Industrial Applications

ES-LFB6400

Job Name –––––––––––––––––––––––––––––––––––––––––––

Contractor ––––––––––––––––––––––––––––––––––––––––––––

Job Location ––––––––––––––––––––––––––––––––––––––––– 

Approval   –––––––––––––––––––––––––––––––––––––––––––––

Engineer –––––––––––––––––––––––––––––––––––––––––––––

Contractor’s P.O. No. –––––––––––––––––––––––––––––––––––

Approval   –––––––––––––––––––––––––––––––––––––––––––––

Representative ––––––––––––––––––––––––––––––––––––––––

LFB6400

LFB6400LL

Pressure – Temperature

Temperature Range: -55°F – 450°F (-49°C – 232°C)

@ 50psi (3.4 bar)

1

4

" – 2" (8 – 50mm): 600psi (41 bar) WOG non-shock;

150psi (10 bar) WSP

2

1

2

" – 4" (65 – 100mm): 400psi (28 bar) WOG non-shock;

125psi (8.6 bar) WSP

Options

Suffix

LL – Lever latches and locks in open and closed

positions

*This product complies with the Buy American Act and The

American Recovery and Reinvestment Act. For more information,

visit watts.com.

BAA/ARRA Compliant

*

LEAD FREE

*

Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

Durafill

®

is a registered trademark of Cargill, Limited.

*The wetted surface of this product contacted by consumable

water contains less than 0.25% of lead by weight.