Y43X-1O/16, Y13X-1O/16T(p) series proportional pressure Relief Valve consist of valve body, piston, gland,O-ring, seal pad etc. parts. The valve is set with a floating piston in its internal cavity and changes the pressure status at water inlet and outlet by means of the pressure difference caused by the different hori-zontal areas on both sides of the piston. The area difference on both sides of the piston with the pipeline subjected to pressure makes the pressure difference on water in and out at both inlet and outket of the valve, thus getting the purpose of pressure reductrion. This valve can reduce both “dynamic” and “static”pressures, has a strict and brand-new structure, smooth movement, exquisite volume, light weight and is easy to be mounted and maintained, wearable and leak-preventing. It is made with advanced workmanship and surface treatment, therefore is corrosion-proof and rust-proof without pollution to water nature.
Material For Main Parts
| Name of parts | Materials |
| Body, Gland | Cl, Stell casting, Bronze, Stainless steel |
| Piston | Bronze or Stainless steel |
Main External And Connecting Dimensions
Table 1
| Type | Y13X-10/16 2:1, 3:1, 3:2, 4:1, 5:1, 5: 2 | |||||
| DN(mm) | 15 | 20 | 25 | 32 | 40 | 50 |
| G(mm) | 1/2″ | 3/4″ | 1″ | 11/4″ | 11/2″ | 2″ |
| L(mm) | 80 | 80 | 90 | 100 | 110 | 120 |
| D(mm) | 53 | 58 | 63 | 69 | 75 | 86 |
Table 2
| Type | Y43X-10/16 2: 1, 311, 3: 2, 4:1, 5:1, 5: 2 | |||||
| Nominal diameter DN(mm) | L | D | D1 | D2 | b | n-φd |
| 50 | 85 | 165 | 125 | 102 | 20 | 4-18 |
| 65 | 102 | 185 | 145 | 122 | 20 | 4-18 |
| 80 | 122 | 200 | 160 | 133 | 22 | 8-18 |
| 100 | 140 | 220 | 180 | 158 | 24 | 8-18 |
| 125 | 160 | 250 | 210 | 184 | 26 | 8-18 |
| 150 | 175 | 285 | 240 | 212 | 26 | 8-22 |
| 200 | 230 | 340 | 295 | 268 | 28/30 | 8-22/12-22 |