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