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VB-4000

VB-4000 series brass valve is equipped with electrical control device, it can be used to control the flow of steam or cool / heat water in central air-conditioning, heating, water handling and industrial processing industry system.

Product Feature

  • Casting Brass Valve body
  • KVS 6.3 ~ 40
  • DN20..50
  • Female threaded connection RP as ISO 7/1
  • Stroke 20 mm
  • Can be equipped with VA3300 or VA3400 series valve actuator

Technical Data

MODEL Series of product
Service ยน Cold and Hot water, water with max, 50% Volume of glycol
Valve Body Stainless Steel
Pressure Rating PN 16
Maximum Close-off Pressure 600kpa
Flow Characteristic Equal Percentage
Flow Accuracy
Kvs value 6.3 ~ 40 m3/h
Valve Body Size DN20 – DN50mm
Leakage Less than 0.05% of KVS
Rangeability 1:200
Stroke Length Max 20mm
Media Temperature 2 degree C ~ 130 degree C
Ambient Conditions 2 degree C ~ 60 degree C
End Connections Female thread
Material. Body Casting Stainless Steel
Plate Forging Brass with Nitrile Rubber
Stem Stainless Steel 1Cr18Ni9
Seats Fluon Filler and O-ring Nitrile rubber sealing combination
O ring NBR

Combination of Valve and Actuator

Valve Model Type Kv Stroke(MM) Size(MM) Close-Off Pressure(KPa) Pressure Class
VA3300 VA3400
VB-4200-20Q 2 way 6.3 20 DN 20 1200 1600 PN16
VB-4200-25Q 10 20 DN 25 1000 1400
VB-4200-32Q 16 20 DN 32 750 1100
VB-4200-40Q 25 20 DN 40 500 800
VB-4200-50Q 40 20 DN 50 300 500
VB-4300-20Q 3 way 6.3 20 DN 20 1200 1600 PN16
VB-4300-25Q 10 20 DN 25 1000 1400
VB-4300-32Q 16 20 DN 32 750 1100
VB-4300-40Q 25 20 DN 40 500 800
VB-4300-50Q 40 20 DN 50 300 500
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