Pneumatic Culvert Balloon

Culvert balloon (or pneumatic pipe plug/formwork balloon) used to shape concrete culverts, or a pneumatic marine airbag used for ship launching and heavy object moving. Key Features • Material: High-strength reinforced synthetic rubber. • Function: Inflated with air to create a temporary internal form for pouring concrete culverts or used as rolling airbags for heavy load transport. • Valves: Fitted with brass inflation/deflation valves connected to a hose and pressure gauge at the end