YZ11X branch pipe pressure reducing valve
1. YZ11X branch pipe pressure reducing valve-purpose and structural characteristicsYZ11X branch pipe pressure reducing valve is a direct-acting membrane spring pressure reducing valve, which is designed and manufactured on the basis of absorbing the advantages of similar foreign products. It is main...
1. YZ11X branch pipe pressure reducing valve-purpose and structural characteristics
YZ11X branch pipe pressure reducing valve is a direct-acting membrane spring pressure reducing valve, which is designed and manufactured on the basis of absorbing the advantages of similar foreign products. It is mainly composed of diaphragm, flap valve, adjusting spring and other parts. Use the diaphragm to sense the downstream pressure change to drive the valve flap, change and control the valve opening to realize the pressure reducing and stabilizing function. The outlet pressure value is set by adjusting the spring pressure. The branch pressure reducing valve appropriately enlarges the diaphragm area and improves the sensitivity. Decompression and stabilization are stable and sensitive. The branch pressure reducing valve is suitable for the branch pipelines of high-rise apartment buildings and residential areas, as well as the household branch pipes of apartments and houses.
2. YZ11X branch pipe pressure reducing valve-main technical parameters and performance indicators
| Nominal pressure (Mpa) | 1.0 | 1.6 |
| Shell test pressure (Mpa)* | 1.5 | 2.4 |
| Seal test pressure (Mpa) | 1.0 | 1.6 |
| Maximum inlet pressure (Mpa) | 1.0 | 1.6 |
| Outlet pressure range (Mpa) | 0.05-0.55 | 0.05-0.8 |
| Pressure characteristic deviation (Mpa)△P2P | GB12244-1989 | |
| Flow characteristic deviation (Mpa)△P2G | GB12244-1989 | |
| Leakage | 0 | |
| Operating temperature | 0℃-80℃ | |
Three, YZ11X branch pipe pressure reducing valve-material of main parts
| Part Name | Part material |
| Valve body | Copper alloy |
| cap | Copper alloy |
| Disc | Copper alloy |
| O-ring | Nitrile rubber |
| Sealing ring | Nitrile rubber |
| Diaphragm | Fabric nitrile rubber |
| Adjusting spring | 60Si2Mn |
| Adjusting bolt | 2Cr13 |
Four, YZ11X branch pipe pressure reducing valve-flow coefficient (Cv)
| DN | 15(1/2") | 20(3/4") | 25(1") | 32(1-1/4") | 40(1-1/2") | 50(2") |
| Cv | 1 | 2 | 3 | 5 | 8 | 14 |
Five, YZ11X branch pipe pressure reducing valve-connection size
| DN | G | L | H | H | |
| P2*≤0.55MPa | P2*≤0.8MPa | ||||
| 15(1/2") | G1/2" | 65 | 75 | 90 | 35 |
| 20(3/4") | G3-4" | 75 | 85 | 100 | 35 |
| 25(1") | G1" | 90 | 3 | 115 | 46 |
| 32(1-1/4") | G1-1/4" | 105 | 130 | 150 | 55 |
| 40(1-1/2") | G1-1/2" | 120 | 155 | 175 | 65 |
| 50(2") | G2" | 140 | 175 | 195 | 75 |
