Manholes Full Opening

Littlejohn Inc offers a specialized selection of full-opening chemical manholes designed for tank trailers transporting hazardous liquids. These manholes provide wide access for cleaning, inspection, and maintenance—critical in preventing cross-contamination and ensuring compliance with safety standards. Crafted from high-grade stainless steel, they offer leak-tight sealing and withstand chemical exposure, pressure fluctuations, and demanding operational conditions.

Our inventory features trusted components from Betts and Pelican. Betts full-opening manholes are available in both ASME and non-code versions, with stainless bodies and heavy-duty cam-latch closures that ensure secure sealing under pressure. Pelican supplies compatible latch kits and gaskets—including EPDM and Viton materials—to enhance chemical resistance and service life.

At Littlejohn Inc., we understand the importance of reliable seal integrity and rapid access in chemical trailer operations. That’s why we offer fast shipping nationwide and expert customer support to help you select the right manhole configuration and gasket material. Whether you’re maintaining compliance or outfitting a new trailer, our team ensures your system stays safe, clean, and fully operational.