Combined type reducing valves
Structure and function
Y46T combined type reducing valve is mainly constituted by main valve,control pilot valve,filter, the needle valve, ball valve, throttling part of by-pass pipe,and etc. Combined type reducing valve applies to the equipment and piping system needing to reduce within the pressure range, such as the water of less than 80 degrees Celsius temperature, the corrosive liquid (gasoline, kerosene),gas and etc.,through the regulation, theinlet pressure will be reduced to the a desired value. When the inlet pressure or flow changes, the outlet pressure can be kept in a certain range by the medium itself energy.
Dimensions & Constructral Diagram
Combined type reducing valve Constructral Diagram
Main technical parameter
| TYPE |
Nominal Diameter（mm） |
nominal prssure |
intensity test pressure |
| Y46T-16/16C |
65-250 |
1.6 |
2.4 |
| 300-400 |
| Y46T-25Q |
65-250 |
2.5 |
3.75 |
| 300-400 |
| type |
Nominal Diameter（mm） |
nominal pressure |
intensity test pressure |
| Y46T-16/16C |
65-250 |
1.6 |
2.4 |
| 300-400 |
| Y46T-25Q |
65-250 |
2.5 |
3.75 |
| 300-400 |
Material of main parts
| Name of Part |
material |
| body,bonnet |
cast iron,carbon steel,ball-iron |
| valve rod,piston,disc |
stainless steel |
| seat |
copper |
| filter,ball-valve,needle valve, control pilot valve |
copper |
| spring |
Si-Mn Steel |
| sealing gasket |
NBR |
Main External Dimensions
| Nominal Diameter DN(mm) |
dimensions(mm) |
| L |
H1 |
H |
| 65 |
290 |
100 |
560 |
| 80 |
310 |
105 |
580 |
| 100 |
350 |
125 |
650 |
| 125 |
400 |
140 |
685 |
| 150 |
480 |
160 |
915 |
| 200 |
600 |
190 |
1015 |
| 250 |
730 |
220 |
1220 |
| 300 |
850 |
250 |
1250 |
| 400 |
1100 |
320 |
1275 |