1, pneumatic valve product according to the valve body material to identify paint, the color in the table below
The valve body material gray cast iron, malleable cast iron spheroidal graphite cast iron carbon steel acid-resistant steel, stainless steel alloy steel
Identify paint color black in silver grey in the sky blue blue
Note: acid-proof steel, stainless steel should not paint, copper alloy don't paint
2, in order to show that pneumatic valve product sealing surface of the material, should be in driving the handwheel, handle, plate hand to identify paint, its colour according to the rules of the table below.
Sealing surface material copper alloy babbitt acid-resistant steel stainless steel nitriding steel boriding steel cemented carbide by nair alloy plastic rubber cast iron
Identify paint color red light yellow sky blue sky blue sky blue deep yellow purple medium green, black
Note: (1) the seat and open-close part facing material not also, according to the low hardness material painted.
(2) check valve, coated in the valve cover the top: relief valve, relief valve, steam trap coated in the valve cover or valve cap on.
3, transmission organization paint color, and according to the following rules:
(1) electric equipment: ordinary coat of gray, triad (field, explosion-proof, anticorrosive) type at the end of the coated blue.
(2) pneumatic, hydraulic, the gear drive and other transmission organization, with product painted
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