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

nodular cast iron

carbon steel

Acid-resistant steel Stainless steel

alloy steel

Body paint color

black

silver

medium grey

sky blue

medium blue

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

 copper alloy

 babbitt metal

Acid-resistant

steel Stainless steel

Nitriding steel boriding steel

 hard alloy

Monel alloy

plastic

 rubber

cast iron

Paint color

bright red

faint yellow

sky blue

sky blue

sky blue

deep yellow

amaranth

Medium green

black

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.