Diaphragm pressure gauge | stainless steel | sanitary type | diaphragm type pressure gauge | screw type | electric contact |

Diaphragm pressure gauge | stainless steel | sanitary type | diaphragm type pressure gauge | screw type | electric contact |

280 CNY (40.77USD)

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Product parameters:

  • Processing customization: Yes
  • Brand: Sailaidi
  • Model: diaphragm pressure gauge
  • Type: diaphragm pressure gauge
  • Measuring range: 0-1
  • Accuracy class: 1.6
  • Connection Type: Thread
  • Nominal diameter: online consultation
  • Ambient temperature: -20 ~ 70
  • Specifications: 0-1MPa


'Product Details'

Diaphragm pressure gauge for the combination of commonly used products, the upper measuring instrument for the general pressure gauge or stainless steel pressure gauge, the lower part of the threaded diaphragm isolator, stainless steel diaphragm for measuring strong corrosion, high temperature, high viscosity, easy crystallization, solidification, solid The media pressure of the suspension, and the media must be avoided directly into the stainless steel pressure gauge inside the gauge and prevent the accumulation of sediment and easy to clean and the surrounding environment has a certain corrosive gases. Isolation diaphragm has a variety of materials to adapt to a variety of Different corrosive media. Instrument for chemical industry, chemical fiber, synthetic fiber, petroleum, dyeing, alkali and other industries, and a variety of materials and a variety of isolation diaphragm interface for customers to choose to adapt to different working conditions .

Selection table for diaphragm pressure gauges



Diaphragm pressure gauge composition diagram



Diaphragm pressure gauge technical parameters:

Function table header

Various types of pressure meters

Accuracy class(%)

1. 0; 1. 6; 2.5; 0.5

Measuring range (Mpa)

-0.1~0; -0.1~0. 15; -0.1~0.3; -0.1~0.5; -0.1~0.9;

-0.1~1.5; -0.1~2.4; 0~0.1; 0~0.16; 0~0.25; 0~0.4; 0~0.6; 0~1.0; 0~1.6; 0~2.5; 0~4.0; 0~6.0; 0~10; 0~16; 0~25; 0~40; 0~60; 0~100; 0~160

Interface form

Screw type; Flange type; Bolt type; Nut type; Clamp fast type; I-flange type

Implementation of standards

JB / T8624-1997

Diaphragm Material

316; Hastelloy C; Monel alloy;, tantalum alloy (Ta), Fluorine plastic (PTFE)

Isolator material

304SS ; 316L; Lining PTFE

Sealing ring Material

Fluorine plastic (PTFE)

Sealing liquid

Silicone oil, vegetable oil

Temperature effects

The use of temperature deviation 20Lt; 0 & gt; C± 5℃, the temperature additional error ≤0.1%/Lt; 0 & gt; C.

Liquid level difference

Specific gravity of sealing liquid RespectivelyLevel difference

Structure Principle of Diaphragm Pressure Gauge:



Isolated diaphragm in the measured medium pressure deformation, sealing fluid pressure, the formation of a pressure equivalent to P, conduction to the pressure gauge, and then instrumentation shows the measured medium pressure value.

Diaphragm pressure gauge for the combination of products, there are three parts:

Above for the functional header, you can use different functions of the table header, to indicate the purpose of control or.

The middle of the connector to adapt to different media operating temperature and installation location requirements.

Isolator for the following parts, isolators have a variety of interface forms to meet the needs of different process connections; the same time there are a variety of isolation diaphragm material to meet the different corrosive media pressure measurement.

Temperature Characteristics of Diaphragm Tables

As the diaphragm table system is filled with a sealed fluid as the transmission pressure of the medium, due to the sealing fluid temperature of the body expansion system, so that the pressure gauge with the pressure of the Ministry of temperature shows the value of the increase, the impact of temperature and seal liquid expansion Coefficient, diaphragm stiffness and the pressure of the Department of temperature, especially for low-range pressure gauge, the impact is more obvious. General pressure Ministry of temperature error is not greater than 0.1% / C. Therefore, the total pressure of the diaphragm pressure gauge by the general Type instrument temperature influence and diaphragm device pressure part of the temperature of the amount of both.

Corrosion resistance of diaphragm sheet

The corrosion resistance of the diaphragm sheet can be ensured by appropriate selection of the diaphragm, flange and sealing gasket material in the contact section of the measuring medium.
Diaphragm material: 0Cr17NIi12Mo2 (316); Monel alloy (Cu30Ni70); Hastelloy (H276C); Tantalum (Ta) and fluorine plastic (F4).
Flange material: stainless steel 0Cr17Ni12Mo2 (316); stainless steel lined with fluorine plastic (316 + F4).
Sealing gasket material: nitrile rubber; silicone rubber and fluorine plastic

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