嫩草影院一区二区_欧美日韩人妻精品一区在线 _中文字幕日韩三级_色婷婷一区二区三区av免费看_亚洲黄色片视频_亚洲五月天综合_91美女免费看_亚洲av人人澡人人爽人人夜夜_欧美特级aaa_九九久久久久久

Features

1. Long service life with reliable seal and without frequent maintenance.

2. Pressure Loss

Too much pressure loss will bring increased cost of correlative energy.?Butterfly valve have flow characteristics three times better than globe valve, and about 75% of a same size gate valve.

3. Multi-Function

Butterfly valve can be used for on/off service and throttling. They are superior in Multi-function as compared to gate valves. Butterfly valve can be widely used in chemical field due to trim options and choice of elastomeric liner.

4. Weight

Butterfly valve have feature of light in weight and small in size, for example, weight and size of a 10” butterfly valve are 1/9 and 1/6 of a 10” gate valve. So, butterfly valve is easy to be installed and saves cost of piping system.

5. Bubble Tight

Butterfly valve with resilient seat design can be bubble tight as compared to metal seated gate or globe valves.

6. Easy of operation

Butterfly valve offer 90-degree open to close.

7. Maintenance

Properly installed butterfly valves are self-cleaning and are less susceptible to failure due to trash material in pipe.

Manual Operator - Lever Handle

There are three type of Lever Handles:

1.Common handle with common notch plate: The valve can be on/off by?operating the lever handle, and different positional slot can keep the valve in a required opening angle.

2.Locking handle with common notch plate: The locking handle can fix the valve in a specific opening angle.

3.Common handle with locking plate: The locking plate can fix the valve in a specific opening angle.

Manual Operator - Gear Box