BLOCK FOR GAS PIPING, GAS PIPING USING THE BLOCK, AND GAS OPENING/CLOSING PART USED FOR THE GAS PIPING

摘要

A block for gas piping and a gas piping using the block, the block wherein a pressure gauge mounting part (2) for mounting a gas pressure gauge (9), a gas supply/exhaust part (3) for performing the supply and exhaust of gas from the outside, a storage space (6) allowing a valve stem (12) to be inserted therein and having an adapter mounting part (4) for mounting an adapter (11) with a pipe connection function, and a working hole (7) having a communication passage allowed to communicate with the storage space and allowing a handle for operating the valve stem (12) inserted into the storage space to be inserted therein from the outside are provided on the outer surfaces of the block at different positions, and a gas passage (5) allowing the pressure gauge mounting part, the gas supply/exhaust part, and storage space to communicate with each other is formed in the block, whereby, since the opening/closing and supply/exhaust functions necessary for the gas piping are collected in one part, the outside dimensions and the cost of the block can be reduced.