Products
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  • B-400x400
  • B-B-400x400
Technical Specification
  
ServiceLiquids, Gases
Size4"
Connection125# FLG
Reduced Pressure Range (psig)40 - 125
Max. Inlet Pressure (psig)250
Min. Inlet Pressure (psig)10
Max. Differential Pressure (psig)125
Min. Differential Pressure (psig)20% of Inlet Pressure
Material Specification
  
BodyCast Iron
SeatStainless Steel
DiscViton-300F max
DiaphragmViton-300F max
B-20-F125-1-V
QTY :
Product Overview
The B-Series direct-operated pressure regulators with balanced valve trim are used for reducing pressure in air and water systems. These regulators are commonly found in industrial plants, apartment buildings, water supply systems, schools and underground water distribution systems. The soft-seated elastomeric Viton disc has an operating temperature up to 300°F and will produce a Class V shutoff. No external sensing line is required with this style of regulator.
Features
• Diaphragm, disc and cup packing in Viton for 300ºF service
• Balanced pressure regulator allows accurate control even when incoming pressure fluctuates
•Valve has a Class V shut-off rating due to the “soft-seated” Viton disc
Selection / Sizing / Capacities
From the Capacity chart, find the inlet pressure and required regulator outlet pressure. Follow across chart to nearest capacity (water, air) that meets or slightly exceeds demand requirements. Follow vertically up to determine appropriate size. When exact application values are not shown, interpolate between values. From the spring range chart, select the spring range that accommodates the required outlet set pressure.

Example:
Application: 35 GPM of 70 PSIG Water reduced to 20 PSIG
Model Code: B-14-N-3-V (B-Series,1” NPT, 5-35 PSIG spring range)
Dimension and Weights