HC diaphragm pressure gauge

HC diaphragm pressure gauge

Description:HC diaphragm pressure gauge

Suitable for gas, liquid explosion-free, corrosive, high temperature, high viscosity, easy to crystallize, easy to coagulate, solid floating, to avoid measuring media directly into the universal pressure gauge and to prevent sediment accumulation and easy to clean the occasion

Feature:
The series of instruments not only innovative design, reliable structure, complete specifications, stability and adaptability, but also has the measurement and control, easy installation, small maintenance and so on.
Diaphragm electrical contact pressure gauge set on the lower limit of two switch contact devices, when the pressure reaches the set value signal or switch control circuit, the operating system to automatically control or send a message.
Application:
widely used in mechanical, chemical, petroleum metallurgy, electric power, alkali metal, water treatment and other industrial processes or mechanical and electrical matching in the measurement of various fluid pressure medium explosion danger. Usually, the instrument can be used for automatic control and signal (alarm) of the measured pressure system (control) by supporting the corresponding electrical equipment (such as relays and contactors).

Technical Parameters

Accuracy: ± 1.6%, ± 2.5%. Diaphragm Materials: 316 ,H276c, Monel, Ta,PTFE

Screw connection: M20 × 1.5; G1 / 2; 1 / 2NPT;Flange connection

Isolator material: stainless steel, fluorine plastic.

Gaskets Material: NBR, fluorine plastic.

Sealing liquid: silicone oil, vegetable oil

Structure principle

Diaphragm in the medium under pressure caused by deformation, sealing liquid is pressed to form a pressure equal to P, conduction to the pressure gauge, indicating the measured medium pressure

Temperature effects

Due to the thermal expansion of the sealing liquid and the stiffness of the diaphragm and the temperature, the use of temperature deviation from 20 ℃ ± 5 ℃, the temperature has an error, the value of 0.1% / ℃.

Liquid level difference

Hose-connected diaphragm pressure gauge installed at the pressure of the Department and the pressure gauge at different locations, the liquid level difference will form a pressure difference ΔP impact, ΔP = seal liquid density × level difference.