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VRW2JV4SMB/M

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VRW2JV4SMB/M
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.
Dimensions (mm) :
224 mm x 190 mm x 341 mm
Maximum Safe Operating Pressure (psi) :
580 psig
Maximum Safe Operating Pressure (kPa) :
4000 kPa
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
Maximum flow rate (gpm) :
39 - 112 gpm
Connection Type :
Wafer flange
Body Pattern :
2-way, straight-through
Pipe Size (inch) :
2-1/2 in. or 3 in.
Pipe Size (DN) :
DN65 or DN80
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
Materials (Seat) :
316 Stainless steel
Materials (Stem) :
Stainless Steel
Flow Characteristic :
Equal Percentage
ANSI/ASME Rating :
150/300
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) :
9 - 25 m3/h

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