Features

1. Its structure adopts the principle of eccentric tightness. The purpose of gate tightness, adjustment and closing is achieved through the transmission mechanism. The sealing pair is a metal surface ring with hard surface contact seal. , and the valve is not flushed, the valve core is not flushed when it is closed, and the spherical surface of the valve core gradually progresses along the valve seat when it is opened, effectively removing fouling obstacles and achieving reliable sealing. It is especially effective for the mixed flow conveying of the two-phase mixed flow and the precipitation of fouling-prone solids.

2. The hemisphere of the valve is made of bimetal, the base metal is surfacing with different alloys, and the valve seat is also surfacing with special treatment. The sealing surface is combined into various types such as anti-corrosion, wear-resistant, high-strength, etc.

3. Tightly sealed, transporting harmful gases can achieve zero leakage

4. The valve core of the sealing pair has a compensation amount. When the valve is worn, turn it a little when it is closed, so that it can be reliably sealed and prolong the service life. In addition, the user can screw off the compression nut, and the valve seat can still be used after adjustment or replacement, which avoids the disadvantages of the whole machine being scrapped after the valve seal fails.

5. Top-loading eccentric hemisphere valve The structure is that there is a cover on the top, which can be repaired on the pipeline, which is convenient and labor-saving.

product model

Due to the selection of bimetallic sealing pairs of different alloys (or combined balls) by surfacing welding, it can be used in the working conditions of wear resistance, corrosion resistance, high temperature resistance and strict sealing requirements.

1. General valve: Specification model DN40-1600. It is suitable for occasions with strict requirements such as sewage treatment, pulp, urban heating and heating;

2. Special valve for petrochemical industry: specification DN40-1600. Suitable for crude oil, heavy oil and other oil products, weak corrosion in chemical industry, two-phase mixed flow medium;

3. Special valve for gas: specification DN40-1600. It is suitable for conveying control of coal gas, natural gas and liquefied gas;

4. Special valve for slurry: specification DN40-1600. Suitable for liquid and solid two-phase mixed flow or industrial pipeline transportation with crystallization or scaling in chemical reaction in liquid transportation;

5. Special valve for coal powder ash slag: specification DN40-1600. It is suitable for the control of power plants, hydraulic slag removal or gaseous conveying pipelines.

Executive standard

Design: GB12237-89

Flange connection: GB/T17241.6-1998, GB/T9115 (steel)

Structure length: GB12221-89

Performance parameters

Connection size