What is gangue, surrounding rock, waste rock?

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The part of the ore that has no use value or cannot be used is called gangue. For example, tungsten ore is mostly formed in the quartz vein, and this quartz vein is called gangue.
The rock around the ore body is called a surrounding rock. The surrounding rock in the upper part of the ore body is called the surrounding rock or the top plate; the surrounding rock in the lower part of the ore body is called the surrounding rock or the chassis, and the rock sandwiched in the ore body is called the stone.
The surrounding rock and stone of the ore body are called waste rock, and the concept of waste rock and ore is relative. The rock with no industrial grade collected in the mining process is called waste rock.

Air Valve Double Chamber

Air Valve double chamber:

1. Application: water transition pipes

2. Function:

a. when the pipe is being filled with water, the air valve automatically let air out of the empty pipes. The air must be released rapidly to make sure that the pressure does not increase in that area as flow is restricted by the air in the pipe.

b. when the pipe is being empty, the air valve must let air into the pipes rapidly to prevent the pressure from dropping and forming a vacuum in the pipe.

c. automatically remove the air bubbles forms at the high points of the pipes or move through the pipes to prevent them reduce the water flow through the valves.

3. Surface coating:

Internally and externally coated with fusion bonding epoxy coating of minimum thickness of 250um. As required, Certification corresponding to drinking water like KTW, WRAS could be available.

4 Quality traceability

All the valves are with serial no. which could ensure the traceability of the production and quality control.

Air Valve Double Chamber,Double Canisters Exhaust Valve,Double Orifice Air Valve,Double Type Air Valve

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