Mod F/S Flange PICV 3 and 4 in. 55-147 gpm
Commercial Building Controls : Valves and Valve Actuators : Pressure Independent Valves : VRW2 : VRW2KV4SMD/M
3 & 4 in flanged Pressure Independent Control Valve
Overview
The VRW2 two-way dynamic pressure independent control valves maintain constant flow of hot/chilled water in closed-loop heating, ventilating, and air conditioning (HVAC) systems regardless of head pressure fluctuations above minimum pressure drop.
Features
- Multi-sized bodies from 21/2 to 6 inch pipes with wafer flanged connections.
- Combination ANSI/ASME Class 150/300 pressure rating.
- Controls hot or chilled water with up to 50% glycol.
- Regulated flow rates available from 39 to 469 gpm.
- Stainless steel pressure regulator maintains constant pressure drop across valve seat.
- Positive pressure, rolling diaphragm regulator design provides flow control accuracy of 5% over specified pressure range.
- Equal percentage flow characteristic using multi turn, non-rising, characterized plug.
- High close-off rating.
- 50 discrete, selectable flow rates available per valve size.
- Stainless steel trim.
- Six-turn actuator with floating or modulating inputs available with stay-in-place or electronic fail-safe action.
- Fail-safe actuators field-configurable for normally open or normally closed power failure return position.
- Two Test Ports for venting or pressure gauge attachment.
Product Specifications
- Application
- Pressure regulating in closed loop heating, ventilating, and air conditioning systems
- Dimensions (in.)
- 12.6 x 10-9/16 in. x 16.7
- Dimensions (mm)
- 320 mm x 269 mm x 424 mm
- Maximum Safe Operating Pressure (psi)
- 580 psig
- Maximum Safe Operating Pressure (kPa)
- 4000 kPa
- Comments
- 2 - 10V position feedback signal
- Operating Temperature Range (F)
- Maximum Safe Operating--248 F
- Operating Temperature Range (C)
- Maximum Safe Operating--120 C
- Ambient Temperature Range (F)
- 14 F to 131 F
- Ambient Temperature Range (C)
- -10 C to 55 C
- Accuracy
- 5% over specified pressure range
- Maximum flow rate (gpm)
- 55 - 147 gpm
- Connection Type
- Wafer flange
- Body Pattern
- 2-way, straight-through
- Pipe Size (inch)
- 3 in. or 4 in.
- Pipe Size (DN)
- DN80 or DN100
- Fluid Temperature (C)
- -20 C to 120 C
- Fluid Temperature (F)
- -4 F to 248 F
- Maximum Differential Pressure Ratings (Close-off) (psi)
- 101 psid
- Maximum Differential Pressure Ratings (Close-off) (kPa)
- 700 kPa
- Valve Action
- Multi-turn linear
- Valve Type
- Wafer flanged dynamic Pressure Independent control valve
- Controlled Fluid
- Chilled or hot water with up to 50% Glycol. Not for use with steam or fuels.
- Materials (Body)
- Ductile Iron, ASTM A53665T, Class 60-45-18
- Materials (Seat)
- 316 Stainless steel
- Materials (Stem)
- Stainless Steel
- Flow Characteristic
- Equal Percentage
- Actuation
- Modulating/Floating Fail-safe actuator
- ANSI/ASME Rating
- 150/300
- Stem Travel (in.)
- 1 to 6 Rotations in 51 equal, field-selectable increments
- Materials (Plug/Ball/Disc)
- 316 stainless steel
- Materials (Packing)
- EPDM and Nitrile O-rings
- Materials (Diaphragm)
- EPDM
- Materials (Regulator)
- 316 Stainless steel
- Leakage
- 0.2% max.
- Head Loss Range (psi)
- 5.1 psid to 58 psid
- Head Loss Range (ft)
- 11.1 ft to 126 ft
- Head Loss Range (kPa)
- 35 kPa to 400 kPa
- Maximum flow rate (m3/h)
- 13 - 33 m3/h
