The valve products are identified and painted according to the valve body material. The color of the valve is as follows: the valve body material is gray cast iron, the malleable cast iron ductile iron carbon steel acid-resistant steel, stainless steel alloy steel.
1. The valve product is identified and painted according to the valve body material. Its color is as follows: the valve body material is gray cast iron, the malleable cast iron ductile iron carbon steel acid-resistant steel, stainless steel alloy steel.
Identification paint color black silver medium gray blue medium blue
Note: (1) Acid-resistant steel and stainless steel are allowed to be painted.
(2) Copper alloy is not painted
2. In order to indicate the material of the sealing surface of the valve product, the paint should be identified on the handwheel, handle and plate of the drive, and the color should be as specified in the following table.
Sealing surface material copper alloy babbitt alloy acid-resistant steel stainless steel nitriding steel boronized hard alloy Monel alloy plastic rubber cast iron
Identification paint color big red light yellow sky blue sky blue sky blue deep yellow purple red in green black
Note: (1) When the sealing material of the valve seat and the opening and closing parts are different, paint according to the low hardness material.
(2) Check valve, applied to the top of the bonnet: safety valve, pressure reducing valve, steam trap on the valve cover or bonnet.
3. The paint color of the transmission mechanism is as follows:
(1) Electric device: ordinary type painted in gray, three-in-one (outdoor, explosion-proof, anti-corrosion) type finish blue.
(2) Pneumatic, hydraulic, gear transmission and other transmission mechanisms, the same product coloring.
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Label: How to identify valve identification paint
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