Model : GDRV-101 (Threded end size 15mm (1/2”) ~ 50mm (2”) ) # Model : DDRV-B (Flange end size 65mm (21/2”) ~ 300mm (12”) )
หมวดหมู่ : Valve ,  Balancing valve , 
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Tozen Double Regulating Valves are installed and used in
centralised heating and cooling systems to obtain design
flow rates of each terminal units and balancing the circuits
in the building.
FUNCTION
• Balancing
• Measuring
• Pre-setting
• Isolating
BODY : BRASS
FEATURES
• Y-pattern globe design.
• Integral fixed orifice plate to form a fixed orifice flow
measurement unit with regulation and isolation function.
• Accuracy of +/-5% at full open position of the valve.
• Equipped with 2 measuring nipples for differential
pressure measurement.
• Microset handwheel adjustment with easily readable
settings.
• Multi-turn adjustment range for maximum flow control.
• Double regulating feature allows valve opening to be set
with allen key.
• Long neck for thermal insulation.
• Bronze body of PN25 pressure rating.
• Comply to BS 7350.
BODY : CI
FEATURES
• Y-pattern globe design.
• Integral fixed orifice plate to form a fixed orifice flow
measurement unit with regulation and isolation function.
• Accuracy of +/-5% at full open position of the valve.
• Equipped with 2 measuring nipples for differential
pressure measurement.
• Microset handwheel adjustment with easily readable
settings.
• Multi-turn adjustment range for maximum flow control.
• Double regulating feature allows valve opening to be set
with allen key.
• Long neck for thermal insulation.
• Ductile iron body of PN16 & PN 25 pressure rating.
• Comply to BS 7350.