Is there any installation direction for the schematic mechanism diagram of flange pneumatic butterfly valve- Shanghai Dongfeng Pump Valve Factory - 上海花千坊_上海龙凤花坛_夜上海最新论坛

Is there any installation direction for the schematic mechanism diagram of flange pneumatic butterfly valve?

Is there any installation direction for the schematic mechanism diagram of flange pneumatic butterfly valve?

How to Select Soft Connection for HVAC Horizontal Fan Coil Unit
Shanghai Dongfeng Pump Valve Factory will introduce you which kind of soft connection should be selected for horizontal fan coil unit. Now let's give you a comprehensive introduction.
There are two types of flexible connections available for central air conditioning fan coil units:
1. Copper head stainless steel soft connection, referred to as air conditioning soft connection, is a common, low-cost, guaranteed quality and long service life fan coil. It is a good choice. The screw thread is made of brass, corrosion resistant and oxidation resistant. The middle pipe is made of stainless steel 304 corrugated pipe, which is resistant to high pressure and corrosion. The stainless steel ripple can be seen directly, It can avoid the jerry building of stainless steel corrugated materials. Some customers feel that it is safer to add a woven mesh outside the corrugated material. The added woven mesh can withstand high pressure, but generally the pressure of central air conditioning fan coil is not large. The copper head air conditioning hose can withstand high pressure of 16kg. Don't compare it with the poor market. I said it is a national standard, and this appearance has no woven mesh, It can be clearly seen that the ripples. General manufacturers dare not take part in the fake products or use 201 material. The silicon rubber pad is used inside the screw thread, which can be easily locked. The installation is also very simple and convenient. The installation master is also labor-saving. It is a fan coil. As a recommended product, the copper head air conditioner soft connection of Songjiang Group is guaranteed for five years.
2. The difference between stainless steel head soft connection and copper head soft connection is that the screw thread is made of stainless steel 304, which is much higher than that of brass in terms of pressure bearing and service life, but its cost is 20% higher than that of brass. Eight year warranty for copper head air conditioner soft connection of Songjiang Group
3. Stainless steel metal hose, stainless steel 304 screw thread, stainless steel 304 corrugated, stainless steel 304 outer woven mesh, 16kg pressure resistance, service life: more than 10 years. Disadvantages: The price is too high, not easy to accept.

 Pneumatic butterfly valve

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