FNW 340NF, 350N User Manual

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Figure 340N, 340NF, and 350N

THERMOPLASTIC VALVES

FULL PORT TRUE-UNION BALL VALVE

Figure 340N - PVC with NPT
and SW Ends*

Figure 340NF - PVC with
150# Flanges

Figure 350N - CPVC with
NPT and SW Ends*

SW only on sizes over 2". NPT is available
upon request.

Valve Features

• Full Port Design

• Pressure Rating: 150 PSI

• Temperature Range:

• PVC: 41°F to 122°F (5°C to 50°C)

• CPVC: 32°F to 194°F (0°C to 90°C)

• Certifi ed to NSF 61 Annex G

• EPDM or FPM (Viton®) Seals

• O-ring Energized Seats (up to 2")

• Bidirectional Flow *

• Adjustable Seat Tightness

• Easy Disassembly with Handle

• Easy Replacement Reduces Down Time

• Can Be Modifi ed for Actuator Installation

* Note that the valve has a preferred fl ow direction

indicated by the embossed arrow on the body. The
preferred fl ow direction orients the carrier upstream
so that downstream piping can be removed with valve
closed.

Standards

Figure 340N Connections:

• Threaded: ASTM D-2464, ref. ANSI
B1.20.1

• Socket: ASTM D-2467

Figure 340NF Connections:

• Flanged: ANSI B16.5, Class 150

Figure 350N Connections:

• Threaded: ASTM F437

• Socket: ASTM F439

Materials:

• PVC: Cell Classifi cation 12454 per
ASTM D1784 (formerly Type I, Grade 1)

• CPVC: Cell Classifi cation 23447
per ASTM D1784 (formerly Type IV,
Grade 1)

340NF

340N

350N

Options

FNW offers many options and modifi cations for valves. These include, but are not
limited to: Actuation including chain wheels, worm gear operators, pneumatic and
electric operators, control accessories, stem extensions, and custom mounting
hardware. Contact FNW with your specifi c application needs.

142

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Size ØD E L L1 Ød1 Ød2 Ød3 T H1 H2 M2

1/2 0.512 3.03 4.49 2.36 0.84 0.85 1.82 0.87 1.81 0.83 1.18
3/4 0.709 3.74 5.31 2.87 1.05 1.06 2.19 1.00 2.24 1.02 1.30

1 0.906 4.33 5.87 3.11 1.31 1.32 2.62 1.13 2.76 1.30 1.57
1-1/4 1.181 5.00 6.69 3.46 1.66 1.67 3.23 1.25 2.95 1.54 1.85
1-1/2 1.496 5.63 6.93 3.74 1.89 1.91 3.88 1.38 3.70 1.61 2.05

2 1.890 6.46 8.15 4.49 2.37 2.39 4.72 1.50 4.45 2.09 2.76
2-1/2 2.402 7.09 10.83 5.35 2.87 2.89 5.51 1.75 4.57 * *

3 2.717 8.82 11.97 6.22 3.49 3.52 6.30 1.88 5.12 * *

4 3.898 10.94 13.07 6.93 4.49 4.52 8.86 2.25 7.01 * *

* 2-1/2" to 4" valves do not have bosses for mounting pad. Saddle mounts, sold separately, are available for actuation purposes.

Dimensions (inches) Figure 340N and 350N

NOTE: 2-1/2" to 4" valves have
a symmetrical single-piece ABS
tee-handle