The Marley NS7 counterflow nozzle is an injection molded polypropylene unit consisting of two parts—the main assembly with integral turbulator and an EDPM rubber grommet. NS7 nozzles are designed to economically provide desired thermal performance at low spray heights typical of factory assembled cooling towers.
NS7 nozzles are produced in two sizes. The NS7-150 has a nominal insert OD of 1.5” and the NS7-200 has a nominal insert OD of 2”. Recommended spray height above the fill is between 7” and 15”.
SPX COOLING Parts
Genuine Marley OEM parts are precision-engineered to provide you with a reliable product. While other suppliers may offer parts at an initial savings, you risk lowering performance — and losing FM and CTI ratings. Marley OEM parts provide the durability you can trust because we design and manufacture them exclusively for cooling towers.
With plant operation relying on your cooling tower performance, it’s important to select the parts that are among the highest quality available — Marley OEM parts.