The fitting is radial or axial. Useful information about pressure gauges
The TM radial technical pressure gauge has optimal characteristics that ensure the most accurate pressure readings can be taken. The device is very simple and easy to use; if necessary, it is equipped with a protective rubber casing.
Conditions for using the device
A technical pressure gauge is used to work with cylinder equipment. It is used to measure excess and vacuum pressure in gases and vapors, as well as in non-aggressive media and liquids that are not accessible to the catalysis process. The temperature of the measured media must not exceed 80 °C.
The device is indispensable for gas-flame processing metal surface. Only with the help of a gas pressure gauge can you determine the gas pressure in the cylinder. Radial connection pressure gauges are used in cases where it is necessary to maintain an optimal pressure in the system, therefore they are equipped with gas reducers and regulators of cylinder equipment.
Specifications of Radial Pressure Gauge
The device body is made of steel. Pressure gauges for gas cylinders created to measure high pressure, equipped copper tube, which is a sensitive element and has a minimum cross-section. The tube also has many turns along which it moves when pressure is applied to the reducer. The Bourdon tube is directly connected to the measuring needle and, in addition to the conversion functions, is equipped with a damper function, which makes it the main element of the pressure gauge.
Devices used in welding equipment, have a diameter of 4 cm, 5 cm, 6.3 cm. The red mark on the body is an indicator of the maximum allowed pressure. Gas pressure gauges have the following indicators:
- accuracy class - 2.5;
- maximum pressure indicator is 0.06-1000 MPa.
Features of device installation
A technical pressure gauge is used to reduce gas pressure to a certain level. The device also maintains the operating pressure in the cylinder. The color of the pressure gauge indicates which gases it is suitable for working with. For example:
- blue pressure gauge - oxygen;
- red - propane;
- white - acetylene;
- dark green - hydrogen;
- yellow - ammonia;
- black - non-flammable gas.
The spring gas pressure gauge is mounted on an oxygen or acetylene reducer using wrench. Special gaskets made of leather or fiber are used as a seal.
Pressure gauges for acetylene are manufactured without copper alloys, since when copper and acetylene are combined, acetylene copper can be formed, which is an explosive substance.
The radial thermomanometer is designed for simultaneous measurement of temperature and overpressure non-aggressive towards copper alloys avg. Scope of application: heating systems, water supply, boilers, steam boilers etc.
Thermomanometer is a combined device for measuring pressure and temperature.
For visual monitoring of the main parameters of the coolant (pressure and temperature), a pressure gauge and thermometer are usually used. An attempt to combine these two devices led to the creation of a combined device called a thermomanometer.
Structurally, the TMTB thermomanometer combines a deformation pressure gauge and a bimetallic thermometer.
Temomanometers have a dial with two scales and two indicating hands. One scale is used to read pressure, the other - temperature.
The ROSMA company produces thermomanometers in two sizes: case diameter 80 And 100 mm.
Depending on the location of the fitting, thermomanometers can be axial or radial. The length of the immersion part can also vary according to the customer's order. All thermomanometers are equipped with a safety valve.
Pressure gauges are a broad group of mechanical devices designed to measure the pressure of various media. The importance of these devices cannot be overestimated because pressure control is an important procedure for many industrial sectors.
| Image | Name | Price per piece VAT included |
|---|---|---|
| ACR axial pressure gauge, 0-6 bar | RUB 300.00 | |
| ACR radial pressure gauge, 0-6 bar | RUB 300.00 | |
 | Pressure gauge WATTS F+R100 (MAL), G1/4, 0-6 bar, axial | 6,5 € |
 | 6,5 € | |
| | 6,5 € | |
| | Pressure gauge WATTS F+R200 (MRP), 0-10 bar, radial | 6,5 € |
Characteristics:
Pressure gauges differ in technical characteristics, accuracy class and scope of application. Each device is necessarily certified by the manufacturer. Pressure gauges are manufactured in the following accuracy classes: 0.2; 0.6; 1.0; 1.5; 2.5; 4.0 (the higher, the higher the accuracy of the device).
According to technical characteristics, pressure gauges are of the following types:
- Technical. Pressure gauges of this type make it possible to measure both excess and vacuum pressure of neutral liquids and gases that are not subject to crystallization;
- Electric contact. The pressure of neutral and non-crystallizing media and oxygen is measured. Pressure gauges of this type can be used not only as control device, but also as an actuator capable of blocking the process (pressure switch);
- Self-recording. Vacuum and excess pressure are measured. Purely a control device. It records on a special medium not only pressure indicators, but also the mode and schedule of its work.
- Reference. Designed for checking pressure gauges;
- Water pressure gauge. Used to measure water pressure in heating and water supply systems. There are two types of water pressure gauges - radial and rear (axial).
According to the principle of operation, pressure gauges are divided into three types:
- Liquid - pressure gauges in which the pressure of the medium is compensated by a column of liquid;
- Piston - act as a compensator by acting on a freely moving piston;
- Deformation - the degree of deformation of the control element (bellows, membrane, spring) is measured.
There are two types of pressure gauges based on the connection method:
- Axial (axial) RA, threaded connection is located on the rear panel of the device;
- Radial RV, the thread is located at the bottom of the body.
Pressure gauges for measuring water pressure (axial and radial) are installed in water supply and heating systems using threaded connections. External thread ¼”
You can buy a water pressure gauge from us on favorable terms.
When choosing a pressure gauge for water, you should pay attention to the following parameters
- Accuracy class;
- Scope of application;
- Maximum pressure;
- Connection method (type and size of thread);
- Case diameter
The same device can be used in different environments. If its design includes elements that are unstable to certain environments, then the scale of the device will contain symbols that inform about the features of using this device. More detailed information on recommended areas of application is contained in its technical data sheet.
The radial bimetallic thermometer is designed for measuring the temperature of liquids and gases in heating and sanitary installations, in air conditioning and ventilation systems. The operating principle of BT thermometers is based on the dependence of deformation sensitive element on the measured temperature. A bimetallic spring is used as a sensing element. A bimetallic spring is made of two firmly connected metal plates, having different temperature coefficients of linear expansion. When the temperature changes, the spring bends and rotates the thermometer needle. One end of the spring is fixed inside the rod, and the arrow axis is attached to the other.
The thermometer body is made of corrosion-resistant steel, the stem is made of of stainless steel.
Scope of application: air conditioning systems, heat supply, water supply.
When measuring the temperature of aggressive media, it is recommended to equip the thermometer with a stainless steel sleeve.
Case diameter
Accuracy class
Temperature ranges
−30…+70 °С* −40…+60 °С**
0…+60 °С 0…+100 °С
0…+120 °С 0…+160 °С
0…+200 °С 0…+250 °С
0…+350 °С 0…+450 °С * - only for Ø100
** - only for Ø63
Working temperature
Environment: −10…+60 °C
Degree of protection
Immersion length, mm
46; 64 (except t°=0…+60 °C);
150 (for Ø63 only up to 250 °C);
200, 250 and 300 (only for Ø100)
Frame
Corrosion resistant steel
Ring
Corrosion-resistant steel, bayonet
Stock
Stainless steel
Sensing element
Bimetallic spiral
Clock face
Aluminium, black scale on white background
Glass
Mineral
Accession
Radial
Connection thread
on the sleeve - G½ or M20×1.5
on the sleeve - 10 MPa (100 kgf/cm²)
Adjustment
Calibration interval
3 years - with measurement range +20...+100 °C, +20...+140 °C
2 years - for all other ranges
Instrumentation OWEN
The OWEN company offers the widest range of products among Russian manufacturers. It includes more than 80 types of devices that can be used to build automation systems of any level: - Programmable logic controllers (PLC); input/output modules; operator panels; interface converters. - General industrial regulators, level regulators, specialized controllers, timers, counters, power supplies. - Sensors: temperature, pressure, level. The range of industries where OWEN devices operate is very wide and includes chemical and petrochemical production, metallurgical and woodworking enterprises, food and packaging industries, energy, housing and communal services and many others.
Devices Termodat, Meradat
Instruments for measuring and regulating temperature, humidity, vacuum under the TERMODAT and MERADAT brands. The lineup devices covers both the simplest single-channel meters and complex multi-channel controllers with a large graphic display.
Pressure gauges and instruments ROSMA
JSC "Rosma" today is one of the largest domestic producers control and measuring instruments, firmly ranking among the top five market leaders in this field. Some of the most popular instruments are pressure gauges, thermometers, thermomanometers, media separators, electromagnetic (solenoid) valves, pressure sensors and switches, pressure transducers, level sensors.
Devices for protecting electric motors and other electrical installations
Designed to prevent failure of electric motors and units based on them in the event of unacceptable operating conditions caused by various operational factors: technological overloads; breakdowns and jamming of mechanisms; idling; asymmetry of the supply network or malfunction of switching equipment. Provide protective shutdown of the electric motor in the event of unacceptable (emergency) operating modes: current overload; current underload; open-phase operation; exceeding the permissible current imbalance. A unique property of the devices is the presence of a monitoring function - continuous monitoring of the operation of electric motors, registration of modes and events, accumulation of statistical data on the operation of electric motors and units based on them, protection of electric motors.
Radial connection
The radial thermomanometer is designed for simultaneous measurement of temperature and excess pressure of media that are non-aggressive to copper alloys. Application area: heating systems, water supply, boilers, steam boilers, etc. Thermomanometer is a combined device for measuring pressure and temperature. For visual monitoring of the main parameters of the coolant (pressure and temperature), a pressure gauge and thermometer are usually used. An attempt to combine these two devices led to the creation of a combined device called a thermomanometer. Structurally, the TMTB thermomanometer combines a deformation pressure gauge and a bimetallic thermometer. Thermal manometers have a dial with two scales and two indicating hands. One scale is used to read pressure, the other – temperature. The ROSMA company produces thermomanometers in two sizes: case diameter 80 and 100 mm. Depending on the location of the fitting, thermomanometers can be axial or radial. The length of the immersion part can also vary according to the customer's order. All thermomanometers are equipped with a safety valve that allows you to dismantle the thermomanometer without depressurizing the system.
Case diameter
Accuracy class
Temperature ranges
0…120 / 150 °C
Pressure reading range
Working temperature
Environment: −60…+60 °C
Measured medium: up to +150 °C
IP40, steel 10, black
Chromed steel 10
Sensing element of the manometric part
Copper alloy
Sensing element of thermometric part
Bimetallic spiral
Tribco-sector mechanism
Copper alloy
Copper alloy
Clock face
Aluminum, black scale on a white background, with color division of temperature and pressure measurement sectors
Mineral
Connection for pressure gauge
Copper alloy
Thermometer rod
Stainless steel 08Х18Н10
Immersion length, mm
46, 64, 100 mm
Accession
Radial
Connection thread
G½ (on valve)
Calibration interval
Technical documentation
TU 4212-001-4719015564-2008
GOST 2405-88
Thermal manometers TMTB
| Type | Case diameter | Accuracy class | Reading range (pressure/temperature) | Connection |
Price including VAT, rub. (Not an official offer) |
|||
|---|---|---|---|---|---|---|---|---|
| Thread | Union | L=46 | L=64 | L=100 | ||||
| TMTB-3 | 80 | 2,5 | 0…0.25 / 0.4 / 0.6 / 1 / 1.6 / 2.5 MPa 0…+120 / 150 °C |
G½ | radial, with valve | 1110 | 1165 | 1210 |
| TMTB-4 | 100 | 1175 | 1220 | 1255 | ||||
The valve is a locking device that, on the one hand, serves for ease of installation of the device; on the other, it acts as a tap, which allows the thermomanometer to be dismantled without draining the system (or without stopping the technological process). The operating pressure of the valve is 2.5 MPa, the maximum is 5 MPa. In terms of temperature ranges, thermomanometers are available in two versions from 0-120 °C and up to 150 °C, and in terms of pressure 0-0.25 MPa, 0-0.4 MPa, 0-0.6 MPa...0-2.5 MPa .
Unfortunately, consumer technical services often make the mistake of installing an expander or an additional outlet for mounting a thermomanometer. It should be remembered that to measure temperature in the device, a bimetallic spring is used as a sensitive element and therefore the immersed part of the thermomanometer must be in the pipe (in direct contact with the coolant), otherwise a large error occurs when measuring temperature. The temperature measurement error is minimal if the end of the valve is immersed to a depth of no less than ⅓ and no more than ⅔ of the pipeline diameter. Thermal manometers are mounted directly on the pipeline; it is enough to weld a boss with a G½ internal thread to it. Our product catalog contains detailed instructions When installing the thermomanometer and during installation, it is necessary to strictly follow it.
Additional options
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