First, in order to express the sealing surface of the valve material, should be in the drive handwheel, handle, board hand identification, painting, and its color press the provisions of the table.

Sealing surface material of copper alloy Babbitt acid resistant stainless steel nitrided steel boronized steel hard alloy Monel alloy plastic rubber cast iron

Identification paint color big red, light yellow, sky blue, sky blue, sky blue, dark yellow, purple, red, green, black

Note: 1, check valve, painted at the top of the valve cover: safety valve, relief valve, trap painted on the bonnet or bonnet.

2, seat and headstock sealing surface material and by coloring materials of low hardness.

Two. The paint color of the driving mechanism shall be as follows:

1, pneumatic, hydraulic, gear and other drive mechanism, with the coloring products.

2, electric device: general type, painted gray, three in one (outdoor, explosion-proof, anti-corrosion), painted end blue.

Three, valve products are identified by body material, painted, and its color press table

The valve body material cast iron, malleable cast iron ductile iron carbon steel, stainless steel and acid resistant steel alloy steel

Identify paint colors, black, silver, grey, sky blue, medium blue

Note: acid resistant steel and stainless steel valves are not permitted to be painted and copper alloys are not painted.