Pressure gauge kind is numerous, it is not merely generally (ordinary) The pointing out type of the indicator, the figure having type; Not merely have a routine type, the special type having type; Not merely have a joint type, the remote transmitting having type; Not merely able to bear vibration modes, there are ruggedized types; Not only not merely septate type, but also corrosion resisting type, etc.
Lectotype of the pressure gauge
The type of the pressure gauge represents the method
Y – pressure, Z – vacuum or damping, B – unexplosive or standard;
J – precision or rectangle, A – ammonia table, X – signal or electric contact;
X C – magnetic assistant electric contact, P – diaphragm, E – diaphragm capsule;
F – antisepticize,N – shock-proof,bourdon tube T,stainless steel B when.
Y T F show it becomes rusty to be just pressure gauge;
Y A shows ammonia uses the pressure gauge;
Y X C represents the pressure gage with electric contact;
Y Z represents the vaccum pressure gauge;
Y Y represents the acetylen gauge;
Y O represents the heat-resisting pressure gauge;
Y H represents hydrogen pressure gauge,etc..
YQ, YQF serial two-step pressure regulators mainly suitable for inputting the pressure and needing fine control and analytical instrument adjusted, instrument and equipment, electric utility industry, and other instruments and apparatuses in environment protecting mode.
Also suitable for having no corrosivity (series YQ) Or there is corrosivity (series YQF) And standard for mist in air,for steel cylinder source of the gases high-pressures gaseous carry on accurate after not regulating, send into the instrument and equipment.
The general meaning has these, but have different meaning to reach different producers specifically, connection that if doubt invites Hao instrument Co., Ltd. of department of Huaian
Different pressure gauge usable conditions
Y-60/100/150 ordinary pressure gauge
Applicable measurement has not exploded, non-crystallizable, does not solidify, have no liquid, gas or steaming pressure of corrosive action at copper and copper alloy.
Use the operating temperature: -40 ¡æ- 70 ¡æ, the instrument carries out the standard: GB/T1226-2001.
YN-50/60/100/150 shock-proof pressure gauge
Suitable for shaking the place vigorously in environment, can tolerate the pulsation of the medium, assaulted and unloaded suddenly, the gauge reading is steady and clear and steady.
Apply to departments such as the machinery, petroleum, chemical industry, metallurgy, mine, electricity,etc. extensively, measure it to copper and copper alloy pressure without corrosivity medium. Have long performance life, it is substitute products of the ordinary pressure gauge. Protection grade IP65.
Y-60BF/100BF/150BF all stainless steel pressure gauges
The instruments all adopt the stainless steel material to make, the major part adopts OCr18Ni12Mo2Ti material, suitable for having gas atmosphere of corrosivity, can measure the pressure of the corrosivity high medium, apply to industry such as the petroleum, chemical industry, metallurgy extensively.
Classify according to the measurement limit of pressure gauge
Divided into vacuum meter, combined pressure and vacuum gauge, microbarometer, low meter pressing, middle meter pressing and high pressure gauge.
The vacuum meter is used for measuring the pressure value of less than atmospheric pressure; The combined pressure and vacuum gauge is used for measuring the pressure value which is smaller than and greater than the atmospheric pressure; The microbarometer is used for measuring the pressure value of less than 60000 Pa.
The low meter pressing is used for measuring 0~6MPa pressure value; China meter pressing is used for measuring 10~60MPa pressure value; The high pressure gauge is used for measuring above 100MPa pressure value.
Classify according to the pressure gauge display mode
The pressure gauge is divided into indicator pressure gauge and digital pressure gauge according to its display mode.
The shell of the shock-proof pressure gauge of the shock-proof pressure gauge is made into the whole seal structure, and pack the damping oil in the shell, because damping function its can use in the intersection of job and ambient vibration or medium pressure ‘ Load) Measurement place of pulsation.
The electric contact pressure watchband has pressure gauge of the controlled switch of electric contact, can realize the call-sending calls the police or control function.
The watchband of pressure of remote transmitting has pressure gauge of the remote transmitting organization, can offer the required electric signal (such as the resistance signal or standard DC current signal) in industrial engineering .
Diaphragm-seal gauge lack of mutual understanding that table uses isolater ‘ Chemistry is sealed) Can isolate the measured meidum from instrument through isolating the diaphragm, in order to measure the pressure of strong corrosion, high temperature, apt crystalline medium.
Memory type pressure gauge, when the component examined is applied, black pressure reveal indicator can drive the intersection of red and the intersection of memory and indicator reach the pressure instruct, enter for not having pressure? ? ? When, black pressure can reveal indicator zero adjustment, and red the intersection of memory and indicator will stay in the intersection of the pressure and expicity position just, let staff members know the expicity number value of operating pressure clearly, act as the bearing.
Classified and can be divided into a precision pressure gauge, general-purpose pressure gauge according to the accuracy of measurements of the pressure gauge.
The accuracy class of measurement of the precision pressure gauge is 0.1, 0.16, 0.25, 0.4 grades respectively; The accuracy class of measurement of the general-purpose pressure gauge is 1.0, 1.6, 2.5, 4.0 grades respectively.
According to the basic reference classification of the pressure gauge indicated pressure
Pressure gauges are different according to the basic references of their indicated pressures, divided into general-purpose pressure gauge, absolute pressure gage, difference meter pressing.
The general-purpose pressure gauge is on a basis of atmospheric pressure; The hopeless meter pressing is on a basis of zero bit of absolute pressure; Difference meter pressing measures the difference of two sensed pressures.