ZZV Self-operated Micro Pressure Regulating Valve
Other Products
I. Introduction:
The ZZV self-operated micro-pressure regulating valve does not require external energy. It uses the energy of the controlled medium itself as the power source, introduces it into the actuator diaphragm chamber to generate thrust, and controls the movement of the throttling element to achieve automatic regulation. It is mainly used in various industrial furnace gas combustion systems to control the mixed flow rate of two fuels (fuel A and fuel B) to achieve ideal fuel conditions; it is used for pressure reduction, pressure stabilization and pressure relief regulation of various industrial gases such as sealing oil and hydrogen in hydrogen-cooled generator sets, liquefied petroleum gas, oxygen, nitrogen, etc.; it is used for gas sealing of various oil products, chemicals and liquid storage tanks, and in some occasions, it can replace the ZZDG nitrogen supply regulating valve and ZZDX nitrogen discharge regulating valve of our factory. When the upstream pressure of the valve is low (for example, less than 0.2MPa), it can replace the ZZYP-(10-16)Ⅱ pilot-operated self-operated pressure regulating valve of our factory.
II. Features and Applications:
1. The set value can be adjusted without stopping production;
2. No packing is used, so there is no friction when the valve stem moves up and down, and the upper seal is absolutely reliable;
3. The sensitive components of the actuator are extremely sensitive, and very small pressure changes can be detected;
4. The valve body is of four-way type, so Type K and Type B can share one valve body.
III. Working Principle:
The self-operated micro-pressure regulating valve relies on the pressure and temperature of the medium flowing through the valve as energy to drive the valve to work automatically, without the need for an external power supply and secondary instruments. This type of self-operated regulating valve uses the feedback signals (pressure, differential pressure, temperature) from the valve outlet to be transmitted to the actuator through the signal pipe, driving the valve disc to change the opening of the valve, so as to achieve the purpose of regulating pressure, flow rate and temperature. The self-operated regulating valve is a new type of self-operated regulating valve. Compared with the manual regulating valve, its advantage is that it can adjust automatically; compared with the electric regulating valve, its advantage is that it does not require external power. Practical applications have proved that in closed circulating water systems (such as hot water heating systems, air conditioning chilled water systems), the correct use of this valve can conveniently realize the flow distribution of the system, achieve dynamic balance of the system, greatly simplify the debugging work of the system, and stabilize the working state of the pump, etc.
IV. Technical Parameters:
Nominal Diameter DN (mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | |
Rated Flow Coefficient (KV) | ZZCP/ZZVP | 8 | 11 | 20 | 32 | 50 | 80 | 100 | 160 |
ZZCN | 53 | 83 | |||||||
Rated Stroke (mm) | 6 | 8 | 10 | 15 | 20 | ||||
Nominal Pressure PN (MPa) | 0.10, 1.0 | ||||||||
Differential Pressure Regulation Range (KPa) | 0.5～5.5, 5～10, 9～14, 13～19, 18～24, 22～28, 26～33, 31～38, 36～44, 2～51, 49～58, 56～66, 64～78, 76～90, 88～100 | ||||||||
Medium Temperature (℃) | ≤80 | ||||||||
Regulation Accuracy (%) | ≤10 | ||||||||
Allowable Leakage | ZZCP/ZZVP | 10-4 × Rated Capacity of Valve (Grade IV) | |||||||
Rate (1/h) | ZZCN | 5×10-3 × Rated Capacity of Valve (Grade II) | |||||||
| Industry Category | Machinery & Equipment/Valves/Control Valves |
|---|---|
| Product Category | |
| Brand: | 上海舟腾 |
| Spec: | ZZV |
| Stock: | 99 |
| Manufacturer: | 上海舟腾泵阀制造有限公司 |
| Origin: | 113120 |
