Patented Steel-Reinforced Inflatable Blocking Plug for 4"–18" Pipes The Lansas Multi-Size Domehead Back Plug is a patented, high-performance inflatable pipe plug engineered for dependable blocking and isolation in demanding municipal and industrial applications. This multi-size blocking plug is designed with advanced reinforcement technology and durable ozone-protected rubber. It delivers controlled expansion, superior strength, and long-term reliability, with its two U.S. patents, the Domehead Back Plug features innovative structural reinforcements that minimize stress, prevent longitudinal tearing, and maintain structural integrity under pressure. Features of Lansas Multi-Size Domehead Back Plug Patent-Protected Design: Features two plies of cross-biased tire cord reinforcement for controlled expansion and reduced side-wall stress. Steel “Spider-Ring™” Reinforcement: Advanced end design transfers inflation stress efficiently for improved durability and structural integrity. Multi-Size Pipe Plug Capability: Covers a wide pipe diameter range with fewer plug models required. Ozone-Protected Natural Rubber: Manufactured with durable natural rubber designed to resist ozone exposure and environmental wear. Lightweight & Flexible: Up to 50% lighter and more flexible than comparable blocking plugs for easier handling. Shape-Changing Inflation Dynamics: Expands in diameter while shortening in length to prevent longitudinal tearing. Dual Lifting Eyes: Equipped with lifting eyes on both ends for safer positioning and retrieval. 1/4" Inflation Port: Allows convenient and efficient inflation using compatible air equipment. Available Sizes & Technical Specifications Nominal Size Min Pipe Dia. Max Pipe Dia. Required PSI Max Back PSI Length 4" to 6" 3.50" 6.25" 30 PSI 15 PSI 9.5" 6" to 10" 5.25" 10.25" 30 PSI 15 PSI 19.7" 8" to 12" 7.25" 12.25" 25 PSI 15 PSI 20.0" 10" to 16" 9.50" 16.25" 25 PSI 15 PSI 27.5" 12" to 18" 11.50" 18.25" 25 PSI 15 PSI 28.5" These inflatable blocking plugs are suitable for low-pressure back applications and designed for safe air inflation within specified PSI limits. For efficient inflation, pair with industrial-quality jobsite air compressors to ensure controlled pressure delivery. What This Domehead Back Plug Can Do Block sewer lines for maintenance Isolate water pipelines for repairs Perform temporary pipe sealing Support municipal pipe testing Assist in wastewater system maintenance Provide flow control during construction Prevent unwanted water infiltration Serve as professional-grade pipeline isolation equipment This multi-size inflatable plug is ideal for contractors and municipalities needing durable pipe blocking solutions. Demanding Applications The Domehead Back Plug is designed for: Sewer system maintenance Municipal water infrastructure Industrial pipeline isolation Drain system blocking Construction site pipe control Utility maintenance operations Its steel-reinforced ends and cord-reinforced body provide reliable performance even under repeated use conditions. Installation & Safety Guidelines Insert plug fully into the pipe before inflation. Inflate gradually to the required PSI. Do not exceed maximum back pressure ratings. Monitor pressure during use. Deflate fully before removal. Always follow manufacturer guidelines provided in product documentation. Built for Durability & Reliability The combination of cross-biased tire cord reinforcement and steel Spider-Ring™ end design ensures: Controlled expansion Reduced stress concentration Prevention of longitudinal tearing Extended product lifespan Enhanced structural stability The ozone-protected rubber outer layer increases resistance to environmental degradation, making it suitable for demanding field environments. Professional-Grade Pipe Blocking Performance Choose the Lansas Multi-Size Domehead Back Plug from Cleanflow for durable, patented, and lightweight inflatable blocking performance. This plug is part of the Lansas collection and is designed for contractors, municipalities, and industrial crews, and delivers superior reliability and ease of use. Order today to improve pipe isolation efficiency and ensure dependable performance on every job. Frequently Asked Questions What is a domehead back plug used for? A domehead back plug is used to temporarily block or isolate pipelines during maintenance, repair, or pressure testing. It allows contractors and municipalities to control flow safely within sewer, water, or industrial pipe systems. What makes this plug different from standard inflatable plugs? This plug features patented reinforcement technology, including cross-biased tire cord construction and steel Spider-Ring™ end reinforcement. These design elements improve durability, control expansion, and reduce side-wall stress compared to standard inflatable plugs. Can this plug handle back pressure? Yes, the plug supports up to 15 PSI maximum back pressure depending on the model size. Always follow manufacturer specifications and do not exceed rated limits. Is this plug reusable? Yes, it is designed for repeated professional use. Proper inspection, cleaning, and storage will help extend its service life and maintain reliable performance. How do I inflate the plug? Connect compatible air equipment to the 1/4-inch inflation port. Insert the plug fully into the pipe, then inflate gradually to the required PSI while monitoring pressure levels. Why is controlled expansion important? Controlled expansion reduces stress concentration on the plug body and helps prevent longitudinal tearing. This improves structural integrity and extends product lifespan during repeated use. Are multi-size plugs better than single-size plugs? Multi-size plugs can reduce inventory requirements and provide greater flexibility on the jobsite. They are useful when working across a range of pipe diameters within a specified size span. What material is the plug made from? The plug is manufactured from ozone-protected natural rubber reinforced with cross-biased tire cord and steel end components for added durability and structural stability.
