Multifunction pump control valve coating the outer surface of the standard

This standard applies to the nominal pressure of PN1.0MPa-PN4.0MPa, nominal diameter DN50mm-DN1200mm multi-function pump control valve. The standard technical requirements are introduced as follows: When applied to drinking water, multifunctional pump control valve cavity coating material safety should be consistent with the provisions of GB / T17219. Painting the outer surface is not specified, special requirements specified in the order contract.