Name: Imported pressure relief valve Model: Regus Caliber: DN25-500 Pressure: 16kg Material: ductile iron, cast steel, stainless steel

Imported pressure relief valve

The valve consists of a main valve 4, a pilot valve 1, a needle valve 2, a ball valve 3 and a pressure gauge 5. The pressure relief/pressure holding valve can effectively release the pressure relief pressure exceeding the safety setting value of the pilot valve 1 on the pipeline to prevent damage to the pipeline and equipment due to overpressure.

British Regus Regus imported pressure relief valve definition

The valve is mainly used for the pressure relief of the fire test circulation system of the high-rise building to prevent the system from malfunctioning due to excessive water pressure. The working principle of the pressure relief valve: The principle of the pressure relief valve is that when the pressure in the pipeline is greater than the set pressure of the pressure relief valve, the oil will have a pressure relief valve flowing out, thereby controlling the pressure in the pipeline. Will exceed a certain limit. First, the principle of the pressure relief valve is that when the pressure in the pipeline is greater than the set pressure of the pressure relief valve, the oil will have a pressure relief valve flowing out, so that the pressure in the control pipeline will not exceed a certain limit. The needle type pressure relief valve adjusts the pressing force by adjusting the length of the spring force in the valve. When the pressure in the pipeline is higher than the set value, the spring is reversely pressed, so that the sealing thimble opens and the oil leaks out. It protects the equipment and regulates the pressure of the system. 2. The pressure relief valve consists of a main valve, a pressure relief/pressure holding pilot needle valve, a ball valve, a microfilter and a pressure gauge to form a hydraulic control takeover system. It can be used as a pressure relief valve or as a pressure holding valve by hydraulic automatic operation. When used as a pressure relief valve, the water supply line pressure can be maintained below the set safety value; for the pressure holding valve, the upstream water pressure of the main valve can be maintained above the set value to maintain the upstream supply pressure of the main valve. 3. Pressure relief valve: When the pressure relief/pressure holding pilot valve is adjusted to the pressure relief state, the water flows through the needle valve, the main valve control room, the ball valve A, the pressure relief/pressure holding pilot valve, and the ball valve B to the outlet. The main valve is open. When the inlet pressure exceeds the safe value set by the pressure relief/pressure holding pilot valve, the pressure relief pilot valve will automatically open, and part of the water is discharged through the ball valve C to relieve the pressure of the pipeline. The pressure relief valve automatically closes when the pressure returns to a safe value. When the pressure relief valve is used, each ball valve is normally open. 4. Holding the pressure valve: When the pressure relief/pressure holding pilot valve is adjusted to the holding pressure state, the pilot valve is closed as long as the inlet valve water pressure is lower than the pilot valve setting value. The main control room is boosted and the main valve is closed. When the upstream supply pressure of the main valve exceeds the set pressure of the pilot valve, the holding pilot valve can be opened, the water in the control chamber is discharged to the outlet through the ball valve, and the main valve of the control chamber is opened, and the water supply is started, that is, the upstream water pressure is maintained. When used as a pressure holding valve, the ball valve C is normally closed or replaced with a wire plug.

The pressure relief valve is controlled by hydraulic self-power, does not require other devices and energy, and is easy to maintain, and is multi-purpose for one valve.

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Specific agreement: delivery time, special requirements, etc.
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Customers have special requirements for products, and must provide the following instructions in the order contract:
(1) Structure length;
(2) Connection form;
(3) Nominal diameter, full diameter, reduced diameter, pipe size;
(4) Operating medium, temperature and pressure range;
(5) Experiment, inspection standards and other requirements;
(6) Various driving devices can be configured in this field according to the special requirements of customers;
If the determined valve type and model are provided by the customer, the customer should correctly explain the meaning and requirements of its model, and sign the contract under the conditions that the supply and demand sides understand and agree.