Manual flapper valve

I. Overview:

The manual plug-in valve has the advantages of short body structure, light weight, and the sealing surface of the valve seat can be protected from medium scouring. It has the advantages of easy scraping, convenient sewage discharge, and prevention of medium leakage. Suitable for use in gas lines containing dust or tar.

Structural features:

       The opening and closing part of the plug-in valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The knife gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. When the knife gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, relying on the medium pressure to press the sealing surface of the gate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing. Most knife gate valves are forced to seal, that is, when the valve is closed, the gate must be forced against the valve seat by external force to ensure the tightness of the sealing surface.

Features

1. The ultra-short structure length saves materials and can greatly reduce the overall weight of the pipeline system

2. It occupies a small effective space, can effectively support the strength of the pipeline, and can reduce the possibility of pipeline vibration

3. The gate is made of austenitic stainless steel, which has greatly improved corrosion resistance and can effectively prevent seal leakage caused by gate corrosion.

4. The upper sealing packing is made of flexible PTFE, which is reliable in sealing and easy and flexible in operation.

5. The gate has the function of a knife, which can effectively cut off all kinds of sundries in the medium.

Application range:

Mining, iron and steel industry - used for coal slurry, ballast slurry, etc.

Purification device - for waste water, mud, sewage and clarified water with suspended solids.

Paper industry - for any consistency pulp, feed water mixture.

Sugar industry - for beet washing, syrup, juicing, fruit juice, etc.

Food industry - for washing and washing equipment, grain conveying equipment, mash, etc.

Power station ash removal - used for ash slurry.

Standard specification for manual flapper valve:

Design and manufacture standard:

Structure length standard: GB/T 12221-2005

Connection flange standard: GB/T 9113

Pressure temperature grade: GB/T 12224-2005

Test inspection standard: GB/T 13927-2008

Main performance specifications of PZ73H manual (round) plug-in valve

Material of main parts of PZ73H manual (round) flapper valve

PZ73H manual (round) plug-in valve main shape and connection size (mm) 

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