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English  |
| Quantity: | |
|---|---|
ST-KZ0010
SHSUOTEVALVE
848180
1.Description.
Direct acting pressure reducing valve is a kind of household Direct acting pressure reducing valve.Using the unloading structure, the disc area and the stem sealing ring area is the same, acting on the disc downward pressure and the stem sealing ring upward pressure offset each other, so that the disc action is not affected by the pressure fluctuations in front of the valve.
2.Main parts&material
| No. | Part | Material |
| 1 | Sheath | ABS |
| 2 | Adjusting Screw | SUS304 |
| 3 | Lock Nut | A2 |
| 4 | Spring Gland | SUS304 |
| 5 | bonnet | SUS304 |
| 6 | Spring | Cr-Van |
| 7 | Lock Nut | A2 |
| 8 | Butterfly Spring | Nickel Plated Carbon Steel |
| 9 | Diaphragm Pressure Plate | SUS304 |
| 10 | Soket Head Cap Screw | A2 |
| 11 | Diaphragm | NBR+Nylon Fabric |
| 12 | Valve Plug | SUS304 |
| 13 | body | SUS304 |
| 14 | Disc | SUS304+NBR |
| 15 | Oring | NBR |
| 16 | Disc Screw | SUS304 |
| 17 | Lower Cover | SUS304 |
| 18 | Plug | SUS304 |
3.Features
-Unloading structure. The outlet pressure does not change with the inlet pressure
-Large pressure regulating range, high sensitivity and low noise,
-When the outlet pressure is the same valve, the valve has a larger flow;
-The valve disc surface with moderate gradient has good stability in small opening;
-Diaphragm structure, waterproof scale, no jamming during operation:
-stainless steel. Imported diaphragm. Long service life,
-It has simple internal structure, stable operation and convenient maintenance
4.Execution standard
| Design standard | GB/T12244 | |
| Connection standard | GB/T7306.1 | |
| Face spacing standard | ||
| Inspection testing standard | GB/T12245 | |
5.Technical parameters
| Nominal diameter | DN15-DN50(1/2"~2") | |
| Inlet pressure range | ≦1.6MPa | |
| Outlet pressure range | 0.1MPa-0.5MPa | |
| Operating temperature | 0°C~85°C | |
| Seal test | 1.1PN | |
| Shell test | 1.5PN | |
| Suitable medium | Clean Water | |
6.Operating principle
The work of the valve is based on the balance between the force exerted by the spring downward to open the disc and the force exerted by the diaphragm upward to shut the disc.When water is used at the back end of the valve, the pressure of the spring is greater than the water pressure acting on the lower end of the diaphragm.The greater the water flow at the back end, the smaller the water pressure acting on the lower end of the diaphragm, and the greater the disc opening;When the back end of the valve is not in water, the pressure at the back end increases, and the diaphragm is pushed upward to close the disc, stabilizing the pressure at the back end at the set pressure value.The pressure value set behind the valve can be adjusted by adjusting screws.
1.Description.
Direct acting pressure reducing valve is a kind of household Direct acting pressure reducing valve.Using the unloading structure, the disc area and the stem sealing ring area is the same, acting on the disc downward pressure and the stem sealing ring upward pressure offset each other, so that the disc action is not affected by the pressure fluctuations in front of the valve.
2.Main parts&material
| No. | Part | Material |
| 1 | Sheath | ABS |
| 2 | Adjusting Screw | SUS304 |
| 3 | Lock Nut | A2 |
| 4 | Spring Gland | SUS304 |
| 5 | bonnet | SUS304 |
| 6 | Spring | Cr-Van |
| 7 | Lock Nut | A2 |
| 8 | Butterfly Spring | Nickel Plated Carbon Steel |
| 9 | Diaphragm Pressure Plate | SUS304 |
| 10 | Soket Head Cap Screw | A2 |
| 11 | Diaphragm | NBR+Nylon Fabric |
| 12 | Valve Plug | SUS304 |
| 13 | body | SUS304 |
| 14 | Disc | SUS304+NBR |
| 15 | Oring | NBR |
| 16 | Disc Screw | SUS304 |
| 17 | Lower Cover | SUS304 |
| 18 | Plug | SUS304 |
3.Features
-Unloading structure. The outlet pressure does not change with the inlet pressure
-Large pressure regulating range, high sensitivity and low noise,
-When the outlet pressure is the same valve, the valve has a larger flow;
-The valve disc surface with moderate gradient has good stability in small opening;
-Diaphragm structure, waterproof scale, no jamming during operation:
-stainless steel. Imported diaphragm. Long service life,
-It has simple internal structure, stable operation and convenient maintenance
4.Execution standard
| Design standard | GB/T12244 | |
| Connection standard | GB/T7306.1 | |
| Face spacing standard | ||
| Inspection testing standard | GB/T12245 | |
5.Technical parameters
| Nominal diameter | DN15-DN50(1/2"~2") | |
| Inlet pressure range | ≦1.6MPa | |
| Outlet pressure range | 0.1MPa-0.5MPa | |
| Operating temperature | 0°C~85°C | |
| Seal test | 1.1PN | |
| Shell test | 1.5PN | |
| Suitable medium | Clean Water | |
6.Operating principle
The work of the valve is based on the balance between the force exerted by the spring downward to open the disc and the force exerted by the diaphragm upward to shut the disc.When water is used at the back end of the valve, the pressure of the spring is greater than the water pressure acting on the lower end of the diaphragm.The greater the water flow at the back end, the smaller the water pressure acting on the lower end of the diaphragm, and the greater the disc opening;When the back end of the valve is not in water, the pressure at the back end increases, and the diaphragm is pushed upward to close the disc, stabilizing the pressure at the back end at the set pressure value.The pressure value set behind the valve can be adjusted by adjusting screws.
