Wafer Centerline Cast Iron Motorized Butterfly Valve

Wafer Centerline Cast Iron Motorized Butterfly Valve

The difference between centerline butterfly valve and the eccentric butterfly valve.Centerline butterfly valve is widely used in water treatment and other industrial fields, it has some advantages, such as light weight, small volume, convenient installation, low cost, but is limited by its design and application of it in many cases has been curbed, eccentric butterfly valve are used. The following is the center line butterfly valve and some of the basic difference between offset butterfly valve.

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The difference between centerline butterfly valve and the eccentric butterfly valve
Centerline butterfly valve is widely used in water treatment and other industrial fields, it has some advantages, such as light weight, small volume, convenient installation, low cost, but is limited by its design and application of it in many cases has been curbed, eccentric butterfly valve are used. The following is the center line butterfly valve and some of the basic difference between offset butterfly valve.

1. The appearance. Appearance can also be simple to distinguish the center line butterfly valve and eccentric butterfly valve. Typically, the center line butterfly valve has a one-piece embedded rubber seat and a simple disc version. Eccentric butterfly valve does not have such a rubber seat, its seat is welded to the seat of the metal ring or the material of the body, the disc version is completely different design, the disc version has sealing ring and fastening ring.

2. Pressure. The center line butterfly valve can only reach 150LB/PN25 pressure, while the eccentric butterfly can reach up to 600 LB/PN100.

3. The temperature. Due to the different design of the sealing structure, the middle line rubber seat can not withstand high temperature, because its seat is rubber or fluoroplastic, but eccentric butterfly valve can be designed to multi-level hard seal to adapt to high temperature environment.

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