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PHF-DY-F self-Operated Differential Pressure Control Valve

PHF-DY-F

Model Selection Description


Diagram Order No. Model No. Valve Type DN Connection 
type
Flow range
(m3/h)
Working pressure
(Mpa)
Control pressure
(Mpa)
Dimensions (mm)
A øB øC L nxød
14127 PHF-DY-32F 2-way 32 Flange 4~13 0.02~0.17 0.02~0.1 132 100 135 180 4x18
14128 PHF-DY-40F 2-way 40 Flange 4~16.5 0.02~0.2 0.02~0.1 146 110 145 200 4x18
14129 PHF-DY-50F 2-way 50 Flange 14.5~44.5 0.02~0.22 0.02~0.1 164 125 165 230 4x18
14130 PHF-DY-65F 2-way 65 Flange 20.5~61 0.02~0.17? 0.02~0.1 201 145 185 290 4x18
14131 PHF-DY-80F 2-way 80 Flange 39~80 0.02~0.1 0.02~0.1 218.5 160 200 310 8x18
14132 PHF-DY-100F 2-way 100 Flange 49~83 0.02~0.07 0.02~0.1 260 180 220 350 8x18



Product Parameter

●Working medium:  water    

●Working temperature: Fluid temperature 5-95 ℃    

●Nominal pressure (PN): 1.6MPa      
●Working life: more than a decade    

●Body material: high-quality gray cast iron    

●Inner part material: brass, stainless steel       
●Spring: Stainless steel    

●Diaphragm: EPDM     

●Flange standard: GB/T 17241.6-2008 PN10


Features

This valve is a double disc structure,stem unbalanced force is small, compact structure, used for water heating (air conditioning) 
system, constant differential pressure of the controlled system, and has the following features: 
●Constant differential pressure of the controlled system ;        

●Support the controlled system  internal autonomic regulation;      
●Absorbing outside net differential pressure fluctuation;         

●Eliminate the logging automatically function。
●Use the advanced stepless voltage regulation structure, control pressure adjustable ratio up to 25: 1          


Principle and performance curve