Watts LFN223BS Manuel d'utilisateur télécharger pdf (Page 2)

Models

⁄2" LFN223M2-B NPT threaded female inlet x NPT threaded female outlet

3" LFN223M1-B NPT threaded female inlet x NPT threaded female outlet

⁄2" LFN223M2-BS NPT threaded female inlet with strainer x NPT threaded female outlet

3" LFN223M1-BS NPT threaded female inlet with strainer x NPT threaded female outlet

For

⁄2" – 2

⁄2" threaded connections, refer to literature ES-LF223.

For 3" flanged connections, refer to literature ES-LF223F.

Materials

Body: Lead Free* cast copper silicon alloy

Seat: Replaceable stainless steel alloy

Strainer Screen: Stainless steel (model LFN223S)

Diaphragm: Reinforced Buna-N

Valve Disc: EPDM

Pressure – Temperature

Temperature Range: 33°F – 160°F (0.5°C – 71°C)

Maximum Working Pressure: 300psi (20.7 bar)

Adjustable Reduced Pressure Range: 25 – 75psi (172 – 517 kPa)

Standard Reduced Pressure Setting: 50psi (345 kPa)

Standards

Both 2

⁄2" and 3" are listed to ASSE 1003 through IAPMO (UPC).

The 2

⁄2" is also listed to ASSE 1003 through ASSE.

Both 2

⁄2" and 3" are listed to NSF 61-G

Options

HP High pressure range 75 – 125psi (172 – 862 kPa)

⁄2" HP, LP, G and GC options

3" HD option

Capacity

Dimensions — Weights

⁄2"

Reduced Pressure Fall-Off

Flow

kPa psi

345 50

276 40

207 30

138 20

121 17.5

103 15

86 12.5

69 10

52 7.5

34 5

17 2.5

0 0

40 80 120 160 200 240 320 400 480 560 640 720 gpm

152 304 456 608 760 912 1216 1520 1824 2128 2432 2736 lpm

SIZE WEIGHT

A (LFN223BS) C D L N (LFN223BS) LFN223B LFN223BS

in in. mm in. mm in. mm in. mm in. mm lbs. kgs. lbs. kgs.

⁄2 17 432 10

⁄4 273 2

⁄8 73 7

⁄8 200 5 127 30 13.6 44 20.0

3 20

⁄4 527 12

⁄4 324 4

⁄8 105 10

⁄2 267 6

⁄4 172 71 32.2 95 43.0

I.P. = 83 psi, R.P. = 50 psi Lockup

(65mm)

(80mm)

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

DIMENSIONS

1 2

LEAD FREE 1
Reduced Pressure Fall-Off 2

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Watts LFN223BS Manuel d'utilisateur Page 2

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