Nibco NLJ160H Wafer Butterfly Valve 4 Inch Lever Handle

Product Description

The NIBCO NLJ160H is a manual wafer-style butterfly valve designed for 4-inch pipe systems in commercial and industrial fluid control applications. The valve features a cast iron body, ductile iron disc, and stainless steel stem, delivering a corrosion-resistant construction suited for demanding service environments. A Buna-N seat provides a reliable shutoff seal. The lever handle allows for quick manual actuation without tools. Rated to 200 psi maximum working pressure and 180 degrees F maximum working temperature, this valve meets the pressure and temperature demands of most HVAC hydronic, plumbing, and light industrial piping systems. Installation is performed by licensed pipefitters or plumbers.

The NLJ160H wafer butterfly valve is used in 4-inch piping runs where a compact, lightweight isolation or throttling valve is needed. The wafer design seats between two pipe flanges, making it a space-efficient alternative to full-lug or flanged body valves. Typical applications include chilled water systems, condenser water loops, HVAC hydronic circuits, and general-purpose water service piping. The lever handle suits installations where frequent manual operation or quick shutoff is required.

Key Features

• Cast iron body construction for strength and durability in wet service environments
• Ductile iron disc for improved impact resistance over standard gray iron
• Stainless steel stem resists corrosion and pitting under repeated cycling
• Buna-N seat provides a tight shutoff seal compatible with water and many common fluids
• 200 psi maximum working pressure rating for high-demand piping systems
• Lever handle enables fast manual actuation and clear open/closed position indication
• Meets API 609, MSS SP-67, and MSS SP-25 marking standards for verified quality

Compatibility

Designed as an OEM-style wafer butterfly valve for 4-inch pipe flanged installations in commercial HVAC, plumbing, and light industrial piping systems following standard wafer face-to-face dimensions.

Installation Notes

Installation of this valve should be performed by a licensed plumber or pipefitter following applicable IPC and ASME B31.9 piping code requirements. Isolate and depressurize the system fully before removing the existing valve or installing this one. The wafer body must be centered carefully between mating flanges with appropriate gaskets to achieve a proper seal. Verify flow direction and lever clearance before final flange bolt torque to avoid binding or misalignment.