Two new NLB 3750 3D tank cleaning heads (photo) feature a redesigned hub assembly that triples the seal life of previous models and greatly simplifies seal replacement, according to the firm. Both deliver the 3D cleaning action made popular by previous NLB models, with rotating high-pressure water jet nozzles mounted on a revolving head to maximize interior coverage in tanks and reactors. The NLB3750-85 operates at pressures from 4,000 to 13,000 psi with a flow rate of 80 gal/min. The NLB3750-110 operates at from 4,000 to 8,000 psi and 110 gal/min. Both have stainless-steel bodies for durability and ease of cleaning. High-pressure water jets remove chemical and resin build-up from tanks and reactors faster and more thoroughly than manual methods, while eliminating the need for anyone to enter a confined space. — NLB Corp., Wixom, Mich.