65 How wide is the welded butterfly valve, and how far apart the flanges on both sides need to be

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

By our standard it is 170mm long.

Inner diameter; Outer diameter 210mm Name:Steel flange Specification:DN100 However, you had better note the national standard number according to your pressure.

Because the flange is thick and thin, and the number of bolt holes is different.

Thick expensive 1The nominal diameter of the flange does not represent the nominal diameter of any flange, but only states the specifications of the flange. The specific size should refer to the flange standard.

The butterfly valve should be installed in the second method: Here's why:

1. There is no bottom welding in the flange on one side of the construction of the first method, and the quality does not meet the requirements.

2. In the second method, the flange can be welded on the back cover, and the gasket can be installed with a jacking tool when the gasket is installed, and the gasket is not damaged.

The second method is the best, long pipes or short pipes are very suitable, and the flange can be welded in place at the same time.

Taking atmospheric pressure PN10 as an example, the structural length of DN65 for the butterfly valve is 46mm, and the flange thickness is 18

The length of the bolt is 5 + 18 + 18 + 46 + 18 + 18 + 5 = 128, and you can buy a 125mm length.

Main specifications: DN (mm) DN350-DN2600 PN6 PN10 PN16

Maximum working pressure MPa 1

Seal test pressure MPA

Strength test pressure MPA

Applicable medium: water, sewage.

Soft Seal Media Temperature 65 The temperature of the hard seal medium depends on the valve material.

The flow rate of the medium is 3m s

Is it two inches, or two and a half inches. Use 63 for two-inch and 75 for two-and-a-half-inch ones. Netcom pipe industry has steel.

With 50 ppr flange, if the 4 holes are not too positive. Can be changed to 14 screws.

Flange pipe clamp should be a clamp flange, right?

I know that there are more flanged short pipe butts and they are stronger.

Personal advice If your valve is horizontal and the transverse pipe distance is short, use a flanged pipe clamp, if not it is better to use a flanged short pipe butt.

If you really want to save money, I'll teach you 2 ways:

1 Ask the manufacturer.

2 Ask the superintendent.

It is a clamp-on butterfly valve.

The connection method is a special flange for butterfly valves.

After the sealing surfaces at both ends of the two rubber sealing rings of the butterfly valve are docked with the welded flanges on the pipeline respectively; Tighten with studs and nuts.

When installing, pay attention to the butterfly plate is fully open, and the sealing ring between the flange surface and the sealing ring of the butterfly valve can be tightened after clamping.

To connect with the butterfly valve, weld the flange with the steel pipe and then connect with the butterfly valve with bolts and nuts, and then make a pipe support. The general butterfly valve flange is common with the domestic GB2506-89 flange, and you can also look at the ISO7005-1, which is very simple.