Watts LFSWT User Manual
Series lfss, lfst, lfsws, lfswt, Lead free, Stop valves, stop and waste valves
For Residential Applications
ES-STOPVALVES
Job Name –––––––––––––––––––––––––––––––––––––––––––– Contractor
––––––––––––––––––––––––––––––––––––––––––––
Job Location –––––––––––––––––––––––––––––––––––––––––– Approval
––––––––––––––––––––––––––––––––––––––––––––––
Engineer –––––––––––––––––––––––––––––––––––––––––––––
Contractor’s P.O. No. –––––––––––––––––––––––––––––––––––
Approval ––––––––––––––––––––––––––––––––––––––––––––– Representative
–––––––––––––––––––––––––––––––––––––––––
Series LFSS, LFST,
LFSWS, LFSWT
Stop Valves, Stop and Waste Valves
Sizes:
1
⁄
2
" –
3
⁄
4
" LFSS, LFST
3
⁄
8
" –
3
⁄
4
" LFSWS, LFSWT
Models
Model LFSS – Sizes
1
⁄
2
",
3
⁄
4
" solder connections
Model LFST – Sizes
1
⁄
2
",
3
⁄
4
" NPT female connections
Model LFSWS – Sizes
3
⁄
8
",
1
⁄
2
",
3
⁄
4
" solder connections
Model LFSWT – Sizes
3
⁄
8
",
1
⁄
2
",
3
⁄
4
" threaded connections
Pressure — Temperature
Maximum Working Pressure: 150psi (10.3 bars) WOG.
Maximum Temperature: 180°F (82°C).
LFSWT
K
C
A
Model
Size
diMenSionS
weight
A C K
in
in
mm
in
mm
in
mm
lbs kgs
LFSS
1
/
2
2
3
/
16
55 2
9
/
16
65 2
1
/
16
53
0.44 0.20
LFSS
3
/
4
2
11
/
16
69
2
1
/
2
63 2
1
/
16
53
0.51 0.23
LFSWS
3
⁄
8
1
3
⁄
8
35 2
15
⁄
16
75
2
51
0.50 0.20
LFSWS
1
⁄
2
1
3
⁄
8
35 2
15
⁄
16
75
2
51
0.50 0.20
LFSWS
3
⁄
4
1
1
⁄
4
32 2
15
⁄
16
75
2
51
0.50 0.20
LFST
1
/
2
2
1
/
8
54 2
3
/
8
60 1
5
/
8
42
0.53 0.24
LFST
3
/
4
2
1
/
8
54 2
3
/
8
60 1
5
/
8
42
0.57 0.26
LFSWT
1
⁄
2
2
1
⁄
8
54 2
1
⁄
2
64
2
51
0.40 0.20
LFSWT
3
⁄
4
2
1
⁄
4
57 2
5
⁄
8
67
2
51
0.80 0.30
LEAD FREE
*
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
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.