Butterfly Valve Features

Butterfly valve key components like butterfly upwind, free swing. Butterfly valve disc is a round disc, around the seat of a shaft rotation, The size of the rotation angle is the opening and closing of the valve.

Butterfly valve has a lightweight feature, save materials, simple structure, open and close quickly, butterfly valve can be used to cut and throttling, the fluid resistance is small, the operation effort is saved. Butterfly valve can be made into a large caliber. The place that can use the butterfly valve not to use the gate valve, because the butterfly valve is more economical than the gate valve, and good regulation.

If you have any questions you can contact us at any time, in addition we also produce cast iron butterfly valve, cast steel butterfly valve and stainless steel butterfly valve.

Gate Valve Introduction

Gate valve is a widely used valve. Its closure principle is that the gate seal surface and the valve seat sealing surface are smooth, flat and fit each other, can prevent the media flow, and rely on the top mold, spring or gate mold, to enhance the sealing effect. It mainly plays a cutting role in the pipeline, in the valve model with "Z" said gate valve.

Gate valve only used for full open, full close types of pipes, not allowed for throttling.

What Are The Use of Gate Valve?

Gate valve is only for full open, all close for all types of pipes or equipment used in the operation of the media, not allowed for throttling.

Gate valves with handwheels or handles shall not be used with additional auxiliary levers. If the seal is not tight, we should check repair sealing surface or other parts. Handwheel or handle rotate to turn off clockwise, if the counter-clockwise rotation, the valve is open. The gate valve of the belt drive shall be used in accordance with the product instruction.

The Main Categories of Stainless Steel Globe Valve

Stainless steel globe valve is very widely used, due to the process of opening and closing has small friction, open height is small, easy maintenance, not only for low pressure work environment, but also for high pressure work environment. Its working principle is to rely on the valve stem pressure, so that valve sealing surface and valve seat sealing surface close fit to prevent the flow of media. So what are the types of stainless steel globe valves?

According to the direction of the stainless steel globe valve, it can be divided into three types. They are DC-type stainless steel globe valve, angle stainless steel globe valve, plunger type stainless steel globe valve. According to the position of the stainless steel globe valve thread is divided into two kinds , they are up and down threaded stem stainless steel globe valve.

What Are The Advantages of Stainless Steel Check Valve?

Stainless steel check valve is to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent the media back flow of the valve. Stainless steel check valve is an automatic valve, its main role is to prevent the media back, to prevent the pump and drive motor reversal, and the discharge of container media.

1.the work of stainless steel check valve is characterized by large load changes, small opening and closing frequency, the application cycle is very long, and does not require movement of moving parts.

2.the structure length is short, small size, light weight.

3.the valve flap closed quickly, water hammer pressure is small. Horizontal pipe or vertical pipe can be used, easy to install.

4.smooth flow, fluid resistance is small. Action is sensitive, sealing performance is good.

5.the overall structure is simple and compact, long service life, reliable performance.

How to Store Check Valve?

The check valves must place in a dry and ventilated room, both ends of the pipe should be blocked, if they store in a long time, please frequently check to prevent corrosion. 

Before installation, the check valves should be clean, and remove the defect caused in transportation. When it is installed, check the mark and nameplate carefully, to make sure the working requirements. On the pipeline, do not let the check valves load weight, heavy check valves need independent support to prevent the influences from pipeline. Regardless of storage or installation, we should ensure that the valve is safe and effective.

We also supply DIN swing check valves, if you need know more about other types of check valves, feel free to contact us.