Watts LFB6781 - Manual

Series LFB6780,
LFB6781
2-Piece, Full Port,
Lead Free * Diverter Ball Valves
Sizes: 1 ⁄
4
" – 2" (8 – 50mm)**
Series LFB6780, LFB6781 2-Piece, Full Port, Lead Free* Copper
Silicon Alloy Diverter Ball Valves are designed to divert liquids and
gases in commercial and industrial applications. The LFB6780,
LFB6781’s full port orifice ensures minimal pressure drop, while
PTFE seats and stainless steel ball provide lasting service. The
LFB6780, LFB6781 features Lead Free* construction to comply
with Lead Free* installation requirements.
Features
• Suitable for a full range of liquids and gases.
• Minimal pressure drop due to full size ports
• Blowout proof pressure retaining stem
• Pressure rated at 400psi (28 bars) WOG non-shock @ 100°F
(38°C); 125psi (8.6 bars) WSP
• Virgin PTFE stem packing seal and thrust bearing
• Vinyl insulator on heavy duty, zinc-plated carbon steel handles
• Low operating torque
• Adjustable stem packing gland
• Each valve factory tested
Models
LFB6780 1 /
4
" – 2" (8 – 50mm)** threaded NPT end connections
LFB6781 1 /
2
" – 1" (15 – 25mm)** solder end connections
Specifications
A 2-Piece full port Lead Free* diverter ball valve to be installed
as indicated on the plans. Lead Free* 2-Piece, Full Port, Copper
Silicon Alloy Diverter Ball Valves, shall be constructed using Lead
Free* materials. Lead Free valves shall comply with state codes
and standards, where applicable, requiring reduced lead content.
The valve must have a blowout proof pressure retaining stem,
stainless steel ball, PTFE seats, virgin PTFE stem packing seal and
adjustable packing. Pressure rating no less than 400psi (28 bars)
WOG non-shock, 125psi (8.6 bars) WSP. Valve shall be a Watts
Series LFB6780 (threaded) or LFB6781 (solder).
Pressure – Temperature
Temperature Range: 0°F - 350°F (-18°C – 177°C) @ 50psi (3.5 bars)
Maximum Working Pressure: 400psi (28 bars) WOG non-shock @
100°F (38°C); 125psi (8.6 bars) WSP
For Commercial and Industrial Applications
ES-LFB6780
Job Name ––––––––––––––––––––––––––––––––––––––––––– Contractor ––––––––––––––––––––––––––––––––––––––––––––
Job Location ––––––––––––––––––––––––––––––––––––––––– Approval –––––––––––––––––––––––––––––––––––––––––––––
Engineer ––––––––––––––––––––––––––––––––––––––––––––– Contractor’s P.O. No. ––––––––––––––––––––––––––––––––––
Approval ––––––––––––––––––––––––––––––––––––––––––––– Representative ––––––––––––––––––––––––––––––––––––––––
LFB6780
LFB6781
0° Rotation 45° Rotation 90° Rotation
Options
Suffix
SH – Stainless steel handle & nut
***This valve is designed to be soft soldered into lines without
disassembly, using a low temperature solder 420°F (216°C). Other
solders such as 95/5 tin antimony 460°F (238°C) or 96/4 tin silver
420°F (216°C) can be used, however extreme caution must be
used to prevent seat damage. Higher temperature solders will
damage the seat material. ANSI B.16.18 states that the maximum
operating pressure of 50-50 solder connections is 200 psi (14
bars) at 100°F (38°C) and decreases with higher temperatures.
Apply heat with the flame directed AWAY from the center of the
valve body. Excessive heat can harm the seats. After soldering,
the packing nut may have to be tightened.
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.
LEAD FREE
*
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
**Metric Dimensions are nominal pipe diameter. This product is
produced with NPT threaded or solder end connections.