Honeywell VRW2KW4SMD Dynamic Pressure Regulated Control Valve

Product Description

The Honeywell VRW2KW4SMD is a dynamic pressure regulated control valve designed for use in closed-loop HVAC systems. This valve maintains a constant flow of hot or chilled water. It automatically adjusts the flow to manage temperature fluctuations that occur due to changes in piping pressure. The valve is suitable for water or glycol solutions up to 50%.

• 2-way valve pattern with a combination-size wafer flange
• Equipped with a multi-turn, non-rising stem and straight-through flow design
• Includes dual test ports for easy venting or pressure gauge attachment

Product Highlights

The Honeywell VRW2KW4SMD provides reliable temperature control and flow management in HVAC systems.

Product Information

Standard Information

• Brand: Honeywell
• MPN: VRW2KW4SMD

Technical Specifications

• Valve Type: Dynamic Pressure Regulated Control Valve
• Application: HVAC Systems
• Valve Pattern: 2-Way
• Connection: Flange
• Size: 3 and 4 inch
• Body Style: Two-way, multi-turn, non-rising stem valve, straight-through flow
• Body Pressure Rating (maximum): 580 psig (40 bar) at 248°F (120°C)
• Controlled Medium: Water or Glycol solutions up to 50%
• Operating Temperature Range (F): Maximum Safe Operating--248 F
• Operating Temperature Range (C): Maximum Safe Operating--120 C
• Medium Temperature Range: -4°F to 248°F (-20°C to 120°C)
• Maximum Differential Pressure: 58 psid (400 kPa)
• Close-off pressure: 101 psid (700 kPa), maximum 0.2% leakage
• Flow Characteristics: Equal percentage
• Body: Ductile iron (ASTM A536-65T, Class 60-45-18)
• Trim Material: Stainless Steel
• Flow Optimizer: Stainless steel
• Stem Seals: EPDM and Nitrile O-rings
• Ball Seals: Reinforced Teflon seals, with EPDM O-rings
• Regulator: EPDM rolling diaphragm in 316 stainless steel housing
• Supply Voltage: 24VAC, 50/60Hz
• Control Signal: 2-10VDC, 4-20 mA (with external 500 ohm resistor), Pulse-width modulating, floating, two-position SPDT
• Actuator Type: Modulating Fail-Safe
• Action: Non-Fail Safe: Stay in Place
• Fail-Safe: Spring Return
• Normal position (no signal): Open/Closed
• Actuator Stroke (degrees): 6 x 360 degrees
• Timing: 150 seconds/60Hz
• Feedback: 4-20 mA (2-10VDC) built-in
• Dimensions (in.): 12.6 x 10-9/16 x 16.7
• Dimensions (mm): 320 mm x 269 mm x 424 mm