|Vault and Riser Pressure Blocking Kits GNS, GNS (for mines) / ГНС, ГНС (шахтный)|
for telecommunication cables
The GNS Vault and Riser Pressure Blocking Kits are used for blocking air from trunk cable pot-heads. GNS Riser is designed for installation in cable risers and manholes. GNS Vault Closure Kits is designed for installation in cable vaults, and has an air connecting pipe for pressure monitoring.
Cable can be set under pressure in 24 hours after installation.
Pressure blocking closure kit is to be installed on screened 200-pairs cable in cable manhole. Cable's O.D. is 38.8mm. These requirements are met by GNS Riser 40.