What's the W in the check valve H44W?
W represents the sealing surface is the body seal, that is, directly from the valve body out of the sealing surface
First, the meaning of "W" in check valve H44W:The H44W in the check valve W represents the seat of the check valve, and the sealing surface or lining material is the body sealTwo, check valve H44W model significanceLetter H: stands for check valveFirst number 4: the driving mode is the positive gearSecond numbers 4: the connection form is the flange
