Materials, Pressure - temperature, Standards end connections – Watts LF289 User Manual
Page 2: Capacity, Dimensions - weight, Notice, 10mm)** flow, 15mm), Flow, 20mm)** flow
Materials
Springs: Stainless Steel
Bonnet: PPO
Vent Disc: EPDM
Disc Holder: PPO
Check Disc: Silicone Rubber
Body: Cast Copper Silicon Alloy
Diaphragm: EPDM
Pressure - Temperature
Temperature Range: 33°F - 180°F (0.5°C - 82°C)
Maximum Pressure: 150psi (10.3 bar)
Standards
End Connections
Standard male NPT
Optional hose and custom connections available
Capacity
A
D
B
E
Dimensions - Weight
C
kPa psi
124 18
110 16
96 14
83 12
69 10
55
8
41
6
28
4
14
2
0 0
0 2 4 6 8
10
gpm
0
7.6
15.2
22.8
30.4
38 lpm
5
7.5 10
fps
1.5
2.3 3.0
mps
∆P
3
⁄
8
" (10mm)**
Flow
=
1001
(
3
⁄
8
" and
1
⁄
2
" only).
SizE (DN)
DimENSiONS
WEigHt
A B C D E
in. mm** in. mm in. mm in. mm in. mm in. mm lbs. kg.
3
⁄
8
10 2 50 3
3
⁄
4
95 1
3
⁄
8
35 2
3
⁄
8
60 1
1
⁄
2
38 .9 .4
1
⁄
2
15 2 50 3
3
⁄
4
95 1
3
⁄
8
35 2
3
⁄
8
60 1
1
⁄
2
38 1 .4
3
⁄
4
20 3
3
⁄
4
95 5 127 2
1
⁄
2
64 2
1
⁄
2
64 2
3
⁄
8
60 3 1.4
ES-LF289 1315
© 2013 Watts
USA: Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca
A Watts Water Technologies Company
NOTICE
Inquire with governing authorities for local installation requirements
**
Metric Dimensions are nominal pipe diameter. This product is
produced with NPT threaded end connections.
1
⁄
2
" (15mm)**
∆P
Flow
kPa psi
96 14
83 12
69 10
55 8
41 6
28 4
14 2
0 0
0 2 4 6 8 10 12
14
gpm
0 7.6 15.2 22.8 30.4 38 46 53
lpm
5 7.5 10
fps
1.5 2.3 3.0
mps
=
∆P
3
⁄
4
" (20mm)**
Flow
kPa psi
69 10
62 9
55 8
48 7
41 6
35 5
28 4
21 3
14 2
7
1
0
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 gpm
0 7.6 15.2
22.8
30.4 38 46 53 61 68 76 84 91 99 104 114
122 lpm
5
7.5 10
fps
1.5
2.3 3.0
mps
=