Grease injection.
There is an oil groove between the valve body and the sealing surface, which can inject grease into the valve seat at any time through the oil nozzle to increase the sealing performance

After unscrewing the protective cap, pay attention to cleaning the dirt on the grease injection nozzle, and connect the sealweld supergun head with the grease injection nozzle, then start to grease injection.
When the valve channel is filled with grease, stop to grease injection.
After greasing, clean the grease nozzle and cover the grease cap to ensure that the grease cap is tightened.
To ensure the grease injection effect of the valve, the valve can be opened and closed several times to ensure that the valve surface is lubricated evenly to achieve the purpose of grease injection.
The valve can make pressure test.
After the pressure test, please clean up the excess grease in the valve channel.

As usual open 2~3 times need add the grease injection.

Applicable to petroleum, petrochemical, pharmaceutical, chemical fertilizer, electric power industry, etc.

The hardness of valve adopts nitriding treatment, hardfacing & spraying, such as STL. spraying tungsten carbide. N60, etc

Yes, we have experience in Bitumen?field.

It will not cause?abrasion on?the sealing surface.

Bi-directional type, and provide convenience for installation.

Yes,it can be used for particulate media,but not suitable for large particles

The valve seat is generally welded with 304.316 and if the condition need wear resistance and scouring,we can use?STL etc.

General valve

Its sealing is realized through the sealing ring around the valve. The unique dovetail groove guarantees and the shareholder sealing ring.