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Classification：Relief pressure valve
Trade names：
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| Y416X type acts on the spring membrane type relief pressure valve directly |
| Type of the products: Y416X |
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Structure characteristic and use :
This serial relief pressure valves belong to the acting on type membrane spring relief pressure valve directly. Regulated such parts as the spring , diaphragm , piston , valve seat , valve one ,etc. to make up mainly. Utilize diaphragm direct sensing downstream pressure urge valve petal , control valve petal turn on degree is it reduce pressure the steady voltage function to finish.
This product is in the cold and hot water-supply systems of the urban architecture , skyscraper, can replace the dividing area water pipe of routine , save the equipment. Can play and reduce pressure on steady voltage function in the common cold hot water pipe network .
This product is adjusted and pressed, steady voltage movements are steady, it is and not pipelines of the liquid medium of corrosivity to be suitable for water. |
Main technical parameter and performance index :
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Nominal pressure (Mpa)
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1.0
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1.6
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2.5
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Test pressure of the shell (Mpa ) is *
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1.5
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2.4
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3.75
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Sealed test pressure (Mpa)
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1.0
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1.6
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2.5
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Supreme inlet pressure (Mpa)
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1.0
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1.6
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2.5
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Export to the pressure range (Mpa)
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0.2-0.8
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0.2-1.0
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0.4-1.6
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Characteristic deviation of the pressure (Mpa) P2P
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GB12244-1989
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P2G of characteristic deviation of the flow (Mpa )
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GB12244-1989
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Seepage amount
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0
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Working temperature
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0 degrees Centigrade- 80 degrees Centigrade
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*: The shell is tested not including the diaphragm , valve are covered |
Major part material :
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Part name
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Part material
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The valve has body The valve covering The bottom covering
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WCB
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Valve seat
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2Cr13
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Valve one
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2Cr13
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Valve stem
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2Cr13
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Jar set
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2Cr13/25 (plate the hard chromium)
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Piston
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2Cr13
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O type enclosing
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Man nitrile rubber
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Seal and enclose
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Man nitrile rubber
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Diaphragm
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Insert the fabric cube nitrile rubber
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Regulate the spring
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60Si2Mn
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Flow coefficient (Cv ):
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DN
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15
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20
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25
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32
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40
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50
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65
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80
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100
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125
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150
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200
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250
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300
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350
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400
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500
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Cv
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1
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2.5
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4
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6.5
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9
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16
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25
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36
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64
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100
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140
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250
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400
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570
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780
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1020
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1500
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The external dimension (PN1.0-2.5 ): Unit: mm
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Nominal open DN directly
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External dimension
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L
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H
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Hl
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15
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160
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265
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100
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20
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160
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265
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100
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25
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180
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285
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110
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32
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200
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285
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110
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40
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220
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320
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120
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50
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250
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320
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120
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65
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280
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335
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140
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80
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310
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425
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165
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100
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350
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445
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185
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125
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400
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590
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225
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150
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450
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625
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260
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200
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500
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680
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280
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250
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650
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855
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335
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300
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800
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935
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385
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350
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850
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1015
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430
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400
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900
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1095
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455
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450
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900
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1165
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500
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500
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950
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1205
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525
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