JPH01152233U

JPH01152233U -

Info

Publication number: JPH01152233U
Application number: JP4935288U
Authority: JP
Priority date: 1988-04-14
Filing date: 1988-04-14
Publication date: 1989-10-20

Description

[Brief explanation of drawings]

第１図は本考案一実施例の差圧伝送路の要部を
示す断面図、第２図は本考案他の実施例の差圧伝
送器の要部を示す断面図である。１……ボデイ、２……高圧側導圧路、３……低
圧側導圧路、４……測圧部、５……アダプタ、５
ａ……鍔部、６……連通孔、７……凹部、８……
導圧孔、９……筒状弾性体、１０……センサ土台
、１１……感圧素子、１５……ゴム製円筒。 FIG. 1 is a sectional view showing a main part of a differential pressure transmission line according to one embodiment of the present invention, and FIG. 2 is a sectional view showing a main part of a differential pressure transmitter according to another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Body, 2...High pressure side impulse path, 3...Low pressure side pressure path, 4...Pressure measurement part, 5...Adapter, 5
a... Flange, 6... Communication hole, 7... Recess, 8...
Pressure guiding hole, 9... Cylindrical elastic body, 10... Sensor base, 11... Pressure sensitive element, 15... Rubber cylinder.

Claims

[Scope of utility model registration request]

In a differential pressure transmitter having an overpressure protection mechanism in a body that receives fluid pressure applied to each pressure receiving diaphragm on a high pressure side and a low pressure side via a sealed liquid, the high pressure side and low pressure side of the overpressure protection mechanism, respectively A small-diameter high-pressure side pressure impulse path and a low-pressure side pressure path opened at the periphery and center of one end surface of the communication body, and a covered cylindrical pressure measuring section whose open end is hermetically joined to the one end surface; an adapter formed into a columnar body having flanges at both ends, the bottom surface of which is arranged concentrically within the pressure measuring section without blocking the opening of the high voltage side pressure path, and the bottom surface of which is hermetically sealed to the one end surface; A communication hole that communicates with the low voltage side impulse path on the bottom of the adapter and opens on the side surface between both flanges through the inside of the adapter, a recess provided on the top surface of this adapter, and a hole between the bottom of this recess and both flanges. A pressure conduction hole that communicates with the side surface, a cylindrical elastic body whose ends are externally fitted to both flanges of this adapter and hermetically sealed, and a center through hole that is hermetically fitted into a recess of this adapter. A differential pressure transmitter comprising: a sensor base; and a pressure-sensitive element hermetically sealed with the recess of the diaphragm facing the top surface of the sensor base.