The Structure Principle Of Air Manometer

• Posted by okate cixi April 21, 2021 - Filed in Other - #Shock-proof pressure gauge，Air manometer  - 1,021 views

  　　The shock-proof pressure gauge is mainly used in petroleum, chemical fiber, chemical fiber, printing and dyeing, pharmaceutical, alkali food, and other industrial sectors. Because it has corrosive measurement, high viscosity, easy to crystallize, easy to solidify, listen to the pressure of liquid, gas, or granular solid medium at high temperature, so it is necessary to avoid direct measurement of the medium into the pressure gauge and prevent the accumulation of sediment and easy to clean occasion.

  　　Structure principle

  　　The air manometer consists of a pressure guiding system (including joints, spring tubes, restrictive screws, etc.), gear transmission mechanism, digital indicators (pointers and dials), and a case (including case, cover, glass, etc.). The shell is an airtight structure, which can effectively protect the internal parts from environmental influences and pollution intrusion. For instruments filled with liquid (usually silicone oil or glycerin), it can resist the vibration of the working environment and reduce the influence of medium pressure pulsation.

  　　The corrosion resistance of Shock-proof pressure gauge

  　　The corrosion resistance of the diaphragm pressure gauge can be ensured by the proper selection of the diaphragm, flange material, and the contact of the sealing ring with the measuring medium.

  　　Diaphragm material: 316,316 L

  　　Flange material: 316,316L

  　　Sealing ring material: silicone rubber, polytetrafluoroethylene

  　　Technical index

  　　Accuracy level: ±1.6%; plus or minus 2.5%.

  　　Case diameter: 60mm; 100mm; 150mm

  　　Case material: 304 stainless steel, 316 stainless steel.

  　　Case form: airtight structure, partition device after release

  　　Material of elastic element and joint body: 304; Argon arc welding of the elastic element to the joint body.

  　　Movement material: 304 stainless steel, 316 stainless steel.

  　　Connector thread: M14×1.5; G1 / 4; M20 x 1.5; 1/2 NPT, etc.

  　　Measuring range: -0.1~0 MPa or 0.1~60 MPa

  　　Pointer: normal

  　　Dining table glass: plexiglass

  　　Impact-resistant filling material: 98% glycerin (silicone oil, fluorine oil, or other types can be selected)

  　　Ambient temperature:

  　　1) -25~70℃ (the shell is filled with liquid)

  　　2) -40~70℃ (no liquid in the shell)

  　　Temperature influence: no more than 0.4%/10℃ (use a temperature deviation of 20±5℃)

  　　Vibration resistance of the working environment: V·H·4 (the shell is filled with liquid) V·H·3 (the shell is not filled with liquid)