Watts LFSWT User Manual
For Residential Applications
ES-STOPVALVES
Job Name
Job Location
Engineer
Approval
LEAD FREE
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*
Series LFSS, LFST,
LFSWS, LFSWT
Stop Valves, Stop and Waste Valves
Sizes: 1⁄2" – 3⁄4" LFSS, LFST
Models
Model LFSS – Sizes 1⁄2", 3⁄4" solder connections
Model LFST – Sizes
Model LFSWS – Sizes
Model LFSWT – Sizes
3
⁄8" – 3⁄4" LFSWS, LFSWT
1
⁄2", 3⁄4" NPT female connections
3
⁄8", 1⁄2", 3⁄4" solder connections
3
⁄8", 1⁄2", 3⁄4" threaded connections
Contractor
Approval
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Contractor’s P.O. No.
Representative
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LFSWT
K
Pressure — Temperature
Maximum Working Pressure: 150psi (10.3 bars) WOG.
Maximum Temperature: 180°F (82°C).
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
MODEL SIZE DIMENSIONS WEIGHT
A C K
in in mm in mm in mm lbs kgs
LFSS
LFSS
LFSWS
LFSWS
LFSWS
LFST
LFST
LFSWT
LFSWT
1
/2 23/16 55 29/16 65 21/16 53 0.44 0.20
3
/4 211/16 69 21/2 63 21/16 53 0.51 0.23
3
⁄8 13⁄8 35 215⁄16 75 2 51 0.50 0.20
1
⁄2 13⁄8 35 215⁄16 75 2 51 0.50 0.20
3
⁄4 11⁄4 32 215⁄16 75 2 51 0.50 0.20
1
/2 21/8 54 23/8 60 15/8 42 0.53 0.24
3
/4 21/8 54 23/8 60 15/8 42 0.57 0.26
1
⁄2 21⁄8 54 21⁄2 64 2 51 0.40 0.20
3
⁄4 21⁄4 57 25⁄8 67 2 51 0.80 0.30
C
A
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 without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
1
2
3
4
5
6
7
8
9
K
10
11
No. Part Material
1 Hand Wheel Nut Carbon Steel
2 Name Plate Aluminum
3 Hand Wheel Cast Iron
4 Stem Lead free brass
5 Packing Nut Brass
6 Gland Packing Rubber
7 Bonnet Lead free brass
8 Body Lead free brass
9 Seat Packing Rubber
10 Seat Packing Screw Brass
11 Drain Packing Rubber
12 Drain Cup Nut Rubber
12
C
A Watts Water Technologies Company
USA: Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca
ES-STOPVALVES 1324 © 2013 Watts
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