PHONE NUMBER

Super Capacity Water Pressure Regulator- Series N223F

3" flanged connections

Series N223F are large capacity water regulators with flanged connections for dependable control of commercial and industrial applications. Their design includes a semi-balanced piston feature which assures rapid response to reduced pressure changes and provides maximum flow with minor pressure drop. Iron body construction with bronze and stainless steel working parts. For lasting performance, valves are coated with special corrosion-preventative type of cold galvanizing.

Reduced Pressure Range - Adjustable from 25 to 75 psi (172 to 516 kPa)



OPTIONS
S - for a separate 77F strainer
WR - has ¾" (20mm) No. 223 auxiliary regulator (piping not included)
B - Bypass.
FEATURES
  • Stainless steel piston
  • Dependable control of reduced pressure
  • Renewable stainless steel seat
  • Sealed spring cage, recommended for concealed and multistory installations is standard
SPECIFICATIONS
As noted a galvanized cast iron pressure reducing valve with a semi-balanced stainless steel piston and nylon reinforced diaphragm shall be installed to reduce static set pressure to 50 psi. Valve shall feature a renewable stainless steel seat and feature a sealed spring cage. Valve shall be tapped and plugged ¾" on both inlet and outlet sides for bypass valving. Valve shall be protected by a strainer. Main valve shall be a 3" Watts Regulator model N223FS and the bypass valve shall be a ¾" Watts Regulator model 223 set at 60 psi.
MATERIALS
  • Iron bodies that are coated with special corrosion-preventative type of cold galvanizing.
  • Seat - Renewable stainless steel
  • Piston - Stainless steel
CAPACITY
25 AUB
PRESSURE-TEMPERATURE
Max. Temperature: 160°F (71°C).
Initial Pressure - Up to 175 psi (12 bars)
Reduced Pressure Range - Adjustable from 25 to 75 psi (172 to 516 kPa), set for 50 psi (344 kPa) no flow unless otherwise specified.
DIMENSIONS-WEIGHT
Model No. Size(DN) Dimensions Weight
A AS C D L M N
in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg.
N223F 3 80 12 ½ 318 -- -- 14 ½ 368 3 ¾ 95 7 ½ 191 -- -- -- -- 86 39
N223FS 3 80 12 ½ 318 22 5/8 575 14 ½ 368 3 ¾ 95 7 ½ 191 10 1/8 257 -- -- 120 54
Strainer 77F 3 80 -- -- -- -- -- -- -- -- -- -- 10 1/8 257 7 178 34 15
- © FLW, Inc 1997- - S.D.G.