Russian Type Fire Hydrant Thread Coupling & Blank Cap

Russian type fire hydrant thread couplings and blank caps are quick-connect components used for hose connection or outlet sealing in fire protection systems. Featuring a Russian-style internal locking design, they provide fast engagement, secure sealing, and reliable performance under high-pressure water flow.

Manufactured from high-strength aluminum alloy or brass, these fittings offer excellent corrosion resistance and durability for long-term use in demanding firefighting environments. The product range includes threaded hose adapters, blank caps, and reducer couplings in common sizes such as 2.5 inch (DN65) and various reducing configurations (e.g. DN80 to DN65).

Blank caps are used to protect hydrant outlets when not in service, preventing dust ingress, blockage, and unauthorized use. These components are widely applied in indoor fire hydrant cabinets, pipeline connections, hose transitions, fire engine water inlets, and marine or international shore connection systems.