What are the paint color requirements for valves?
Valve color specification
1. The valve products shall be identified and painted according to the body material. The color is as follows:
body material | gray cast iron Malleable iron | Acid-resistant steel Stainless steel | |||
Body paint color |
Note: Acid-resistant steel and stainless steel are not allowed to be painted, and copper alloy is not painted.
2. In order to represent the sealing surface material of valve products, the paint shall be identified on the driving handwheel, handle and board hand, and the color shall be as specified in the table below.
Sealing material | Acid-resistant steel Stainless steel | Nitriding steel boriding steel | Monel alloy | plastic | |||||
Paint color | Medium green |
Note :(1) the sealing surface materials of the valve seat and the opening and closing parts are different, and the color shall be based on the low hardness material;
(2) Apply the check valve to the top of the valve cover;
(3) Safety valve, pressure reducing valve, trap painted on the hood or bonnet.
3. The paint color of the transmission mechanism shall be as follows:
(1) Electric device: ordinary type paint medium gray, three in one (outdoor, explosion-proof, anticorrosive) paint end blue.
(2) Pneumatic, hydraulic, gear transmission and other transmission mechanism, the same product coloring.