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Honeywell VRN2AB3S2A 1/2 in. f-NPT Floating Pressure Independent Control Valve

SKU: 379835

Save 57% · Retail: $604.77

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About the Honeywell VRN2AB3S2A

The Honeywell VRN Flow Control Valve is designed to keep the necessary flow pace through the valve by controlling the pressure drop across the control valve seat. It prevents an overflow or underflow when conventional two-way valves in multi-zone systems open or close. The actuator adjusts the control valve portion of the valves to the requisite flow based on heating or cooling load requirements. The Honeywell VRN is independent of supply pressure. Its actuator motion ends when the room controller is in stability and the valve is now set at finest flow. The built-in diaphragm controller balances for the adjustment if system head pressure changes which results to preserving the flow required by the control system without using the actuator. Honeywell VRN balances the structure at every point over the range of the control valve within 5% precision at published pressure ratings. The use of Honeywell VRN will result to constant comfort, greater than before energy efficiency and increased actuator life.

Product Details

Manufacturer: Honeywell
Other Info: Easy To Install
Mpn # VRN2AB3S2A
Weight 5.00 lbs.

Product Features

  • Equal Percentage with flow control insert
  • -22 F to +250 F
  • -30 C to +121 C
  • DN15
  • 1/2 in.
  • 2-way, straight-through
  • 1.0 gpm
  • 5% over specified pressure range
  • -10 C to 55 C
  • 14 F to 131 F
  • Maximum Safe Operating--120 C
  • Stainless Steel
  • Maximum Safe Operating--248 F
  • 2500 kPa
  • 360 psi
  • 218 mm x 76 mm x 213 mm
  • 8-9/16 in. x 3 in. x 8-3/8 in.
  • Pressure regulating in closed loop heating, ventilating, and air conditioning systems
  • Hydrogenated acrylonitrile-butadiene
  • Stem Seals: EPDM O-ring and Teflon bearings; Ball Seals: Reinforced Teflon seals, with EPDM O-rings
  • Flow Optimizer: laser-milled, glass-reinforced Noryl
  • Trim (ball and stem): Nickel-chrome plated brass, or stainless steel.
  • Teflon seals / EPDM O-rings
  • Forged Brass (ASTM B283)
  • Water or Glycol solutions up to 50%. Not suitable for combustible gases, oil or steam.
  • Dynamic Pressure Regulated Control Valve
  • 1/2 to 3 inches with female NPT pipe fittings
  • Two-way ball valve, straight-through flow, full port with patented flow control insert.
  • 2500 kPa at 121 C
  • 360 psi at 250 F
  • Integral snubber eliminates affect of system pressure fluctuations and entrapped air while improving flow performance.
  • Three actuator orientations on the valve for cramped spaces.
  • Upstream Test Port for venting or pressure gauge attachment.
  • Forged Brass ASTM B584
  • Removable, manual operating handle to control valve during installation or in an event of power failure.
  • Spring return actuators field-configurable for normally open or normally closed fail-safe position.
  • Choice of factory-installed actuation using Honeywell N05/S05-series direct coupled actuators: Floating, Modulating (2-10 V), Spring Return Modulating/Floating.
  • Nickel-chrome plated brass or stainless steel trim.
  • Patented ball seals for low operating torque.
  • Multiple maximum flow rates available per valve size.
  • Equal percentage flow characteristic using patented flow control ball insert.
  • Positive pressure, rolling diaphragm regulator design for flow control accuracy of 5%.
  • Differential pressure regulator for constant pressure drop across valve seat.
  • Regulated flow rates available from 1 to 95 gpm.
  • Chilled or hot water with up to 50% Glycol. Not for use with steam or fuels.
  • Controls hot or chilled water with up to 50% glycol.
  • Sizes from 1/2 to 3 in. with internal (female) NPT connections.
  • Dynamic Pressure Independent control valve
  • Quarter-turn rotary
  • 690 kPa
  • 100 psid


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