FW4700 Series Boiler Feedwater Valve

Overview

The FW4700 series valve:  60° V full port characterized ball,  3-piece carbon or stainless steel body, 316SS ball and stem, 15% GF RPTFE seats,  Grafoil packing and seals / EPDM stem o-ring,  Bubble tight shutoff,  Valves sizes 1/2" through 2",  Rigid clamped connections for shaft to stem, and linkagearms to valve and actuator shafts, Adjustable linkage system including rod end bearings on both ends of valve shaft, Actuator Torque and Time Ratings: 1/2" - 1": 150 in-lb nom, 300 in-lb break, 30 sec/90° 1-1/2" - 2": 300 in-lb nom, 600 in-lb break, 60 sec/90°, Power Requirements: 24 VAC, 50/60 Hz (optional transformer for 120 VAC), 0 to 135 ohm input signal standard, 4-20 mA input signal optional,  NEMA 3 motor enclosure, Two adjustable SPDT end switchesand,  Ambient temperature to 150°F

Specifications

• 60° V full port characterized ball

• 3-piece carbon or stainless steel body

• 316SS ball and stem

• 15% GF RPTFE seats

• Grafoil packing and seals / EPDM stem o-ring

• Bubble tight shutoff

• Valves sizes 1/2" through 2"

• Rigid clamped connections for shaft to stem, and linkage

arms to valve and actuator shafts

• Adjustable linkage system including rod end bearings on

both ends of valve shaft

• Actuator Torque and Time Ratings:

1/2" - 1": 150 in-lb nom, 300 in-lb break, 30 sec/90°

1-1/2" - 2": 300 in-lb nom, 600 in-lb break, 60 sec/90°

• Power Requirements: 24 VAC, 50/60 Hz (optional transformer

for 120 VAC)

• 0 to 135 ohm input signal standard

• 4-20 mA input signal optional

• NEMA 3 motor enclosure

• Two adjustable SPDT end switches

• Ambient temperature to 150°F

Documentation

Data Sheet
FW4700 Series Data Sheet
I & M
FW4700 I&M
Overview
Marwin Condensed Catalog

Ask a Question