FILM-TYPE GAS METER

FILM-TYPE GAS METER

To provide a film-type gas meter in which the internal diameter of the hole for attaching an isolation valve is increased so that pressure loss is reduced as much as possible in a gas inflow passage from an entrance-side ferrule.SOLUTION: In an inflow route on the gas entrance side and a gas isolati...

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Hauptverfasser: OZAKI TAKAHIRO, NOTO MASAHIRO, HANAKI KATSUHISA, MIYAUCHI HITOSHI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
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creator OZAKI TAKAHIRO
NOTO MASAHIRO
HANAKI KATSUHISA
MIYAUCHI HITOSHI
description To provide a film-type gas meter in which the internal diameter of the hole for attaching an isolation valve is increased so that pressure loss is reduced as much as possible in a gas inflow passage from an entrance-side ferrule.SOLUTION: In an inflow route on the gas entrance side and a gas isolation valve activated in the emergency in the inflow route, the internal diameter of a flange hole 11 for attaching an isolation valve is increased in such a manner that a packing groove 16a formed along the circumferential direction of the flange hole 11 and a packing groove 16b formed along the circumferential direction of a screw hole 12 for attaching an isolation valve are integrally and continuously formed so that a packing groove 16 is formed.SELECTED DRAWING: Figure 4 【課題】入側口金からのガス流入経路において、圧損を可及的に低減するために遮断弁取付用穴の内径を拡大した膜式ガスメータを提供する。【解決手段】ガスの入側の流入経路とこの流入経路内に緊急時に作動するガスの遮断弁において、ガスの遮断弁取付用フランジ穴１１の円周方向に沿って凹設するパッキン溝１６ａと遮断弁取付用ねじ穴１２の円周方向に沿って凹設するパッキン溝１６ｂを連続して一体に形成してパッキン溝１６を形成することにより遮断弁取付用フランジ穴１１の内径を拡大する。【選択図】図４
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subjects MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
title FILM-TYPE GAS METER
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