China Thermometer and Pressure Gauge Manufacturers, Supplier and Factory - Wholesale Thermometer and Pressure Gauge

Sunpass Sealing Technology (Zhejiang) Co., Ltd.: Your Professional Thermometer And Pressure Gauge Manufacturer!

Since its establishment in 1979, our company has established an outstanding reputation in the fields of industrial sealing and insulation materials through more than forty years of mature technology and experience. Currently, we have 178 employees and possess a modern professional plant covering 12,000 square meters, equipped with multiple advanced production lines. We specialize in manufacturing graphite products, PTFE products, seal gland packings, gaskets, fiberglass products, ceramic fiber products, and rubber products. Our products are widely used in various industrial pumps, valves and pipelines, petroleum and natural gas, chemicals and petrochemicals, electricity, food and beverages, paper making and pulp, sugar factories, metallurgy and mining, ships and marine engineering to effectively prevent the leakage of fluids and gases.

Quality Assurance
Quality is our core value. A strict quality management system covers raw material procurement, production process to finished product inspection, ensuring compliance with international standards and customer requirements, winning broad recognition and trust.

Customization Support
We provide comprehensive customization services, tailoring product design, material selection, and size specifications according to specific customer needs, ensuring perfect adaptation to application scenarios. Flexible and personalized services make us stand out.

Professional Team
The company boasts a team of experienced technical experts and professional customer service personnel, including six senior technical experts with over 20 years of industry experience, 87% of customer service staff with more than three years of experience, and eight quality inspectors with over five years of experience, jointly ensuring high quality and excellent service.

Wide Market Coverage
Our products are exported to more than 200 countries and regions worldwide, including Kuwait, Spain, Germany, Russia, Australia, Japan, Korea, and Thailand, demonstrating the international competitiveness and brand influence of our products.

Vertical-Stainless Steel Thermometer
SUNPASS Stainless Steel Thermometer：Engineered with food-grade 304/316 stainless steel, this thermometer combines rugged durability with precision temperature monitoring—ideal for both...
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Pressure Gauge
The pressure gauge should be installed on the side of the fuel tank to ensure accurate measurement of the fuel tank pressure. Before installation, it is necessary to determine the maximum working...
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Stainless Steel Bimetal Axial Thermometer
SUNPASS Stainless Steel Thermometer. Crafted with durable stainless steel, these thermometers are built to withstand high temperatures and provide long-lasting performance.Whether you're grilling,...
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Center Back Bimetal SS Thermometer
SUNPASS Center Back Bimetal SS Thermometer is a device used to measure temperature in various industrial applications. It crafted with durable stainless steel, these thermometers are built to...
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Temperature Gauge Analog
Thermometer for ISO Tank Container Spare Parts From Sunpass More details : https://www.youtube.com/watch?v=CoRphUkZ-DA
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Thermometer
The Sunpass Thermometer for ISO Tank Container Spare Parts is a precision-engineered, purpose-built instrument designed to deliver reliable and accurate temperature readings for the safe and...
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Thermometer Temperature Anti Collision Bar Capillary ISO ...
SUNPASS 4"DN 100 thermometer is designed to be fitted on tank container in order to measure temperature.
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Pressure Gauge For ISO Tank Container Spart Parts Stainle...
Description: Case Nominal Diameter: 50mm, 63mm Case Material: Stainless Steel Movement: Stainless steel or brass internal parts depending on request Connection: Bottom Connection, Center Back...
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Remote Dial Thermometer
REMOTE DIAL THERMOMETER Description: The Remote Dial Thermometer is a precision temperature-measuring instrument designed for applications where temperature monitoring is required at a distance...
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Capillary Thermometer
CAPILLARY THERMOMETER Description: Indication Range:-50C up to +550C(-63F to +1022F) Case Nominal Diameter : 3"; 4"; 5"; 6" Case Material: Stainless Steel Temperature Probe...
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Gas Pressure Gauge Manometer
Sunpass operational spectrum, with an indication range spanning from 0 to 20 bar up to 670 bar. It is available in multiple case nominal diameters, including 1½", 2", 2½", 3", 4", 5", and 6", to...
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Bimetal Capillary Thermometer
Bimetal Thermometer Coil Description: 1. Indication Range: -50C up to +550C(-63F to +1022F) 2. Case Nominal Diameter : 3"; 4"; 5"; 6" 3. Case Material:Stainless Steel 4....
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What is a Thermometer

A thermometer is an instrument that measures temperature. It can measure the temperature of a solid such as food, a liquid such as water, or a gas such as air. The three most common units of measurement for temperature are Celsius, Fahrenheit, and Kelvin. A thermometer is filled with liquid. The higher the measured temperature, the more this liquid inside expands. The expanding liquid results in its climbing inside the tube. This way, the temperature can be read on the display next to the tube.

What is a Pressure Gauge

Pressure gauges, which are devices that measure the internal pressure of media within a system, are among the most often used instruments in any given industrial facility. Pressure measurement is, along with temperature measurement, one of the most important measurements for operations in a wide variety of applications – especially industrial applications – And it is essential in ensuring both the quality of a product and the safety of a facility and its personnel. Pressure gauges are used to monitor and control pressure – Which is often a necessity in industrial processing. Without pressure gauges, industrial processing systems would be both unpredictable and unreliable.

Types of Pressure Gauges

01/

Bourdon Tube Pressure Gauge
A bourdon tube is the most commonly used pressure gauge. It is a mechanical instrument that measures the pressure without an electric supply. It is made of steel to resist wear and corrosion. A bourdon tube pressure gauge can measure pressure from 0.6 to 7000 bar (8 to 10000 psi). It is compatible with liquid or gaseous media for vacuum, as well as low and high-pressure applications. It is a compact instrument that is ideal for heavy vibration applications and dynamic pressure load. The bourdon tube pressure gauge is shown below.

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Diaphragm Pressure Gauge
It is the device used to measure the pressure of fluid in a system. It is purposefully designed to measure low-pressure intensities. A diaphragm pressure gauge is also known as a membrane pressure gauge. This device uses the deflection of a flexible thin membrane known as the diaphragm. The pressure is indicated by using a needle, which is moved with the help of a pinion arrangement with the diaphragm.

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Capsule Pressure Gauge
In this type of pressure gauge, two corrugated diaphragms are welded together at their periphery to form a capsule. This capsule is the main element in sensing the pressure. A hole is present in one of the diaphragms in the center which lets the medium enter. The diaphragms expand or contract upon the application of pressure. The capsule pressure gauge is used for calculating the pressure of gases and is utilised for calculating the pressure of substances with up to 600 mbar.

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Absolute Pressure Gauges
These are the instruments ideally used to measure the pressure independent of the natural fluctuations in atmospheric pressure. A reference measure of vacuum is fixed to the side of the measuring element and is not subject to pressure. Hence, it has zero pressure with no variation. They are mainly used in scientific laboratories. Altitude does not affect the absolute pressure gauges, hence they are used in aeronautics, Heating, ventilation, and air conditioning systems, and distillation processes.

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Differential Pressure Gauge
The difference between the pressure in two chambers separated by an element that moves back and forth according to the changes in pressure is measured by the differential pressure gauge. A diaphragm present in the differential pressure gauge separates the media chamber from the vacuum chamber. When the pressure increases, the diaphragm deforms into the vacuum chamber. The deformation and change are converted into a pressure value.

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Piezometer Pressure Gauge
A piezometer is a type of manometer that is designed to calculate the medium pressure range of liquids. A Piezometer pressure gauge is a simple glass tube that is opened at both ends. One end of the glass tube is connected to a pipeline where the pressure of a fluid is to be measured and the other end is open to the atmosphere. The tube is attached vertically such that the liquid in the pipe can rise into the tube. The pressure reading is indicated by the height of the fluid in the tube.

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Manometer Pressure Gauge
It is a device that is used to measure pressure on a fluid by balancing one column of fluid against the second column of fluid. One end of the tube in the manometer pressure gauge is connected to the place where pressure is to be measured, while the other end is open to the atmosphere.

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Bellows Pressure Gauge
Bellows pressure gauges are the devices used to measure low-pressure applications. The bellows in the devices are made of thin-walled springy metal connected tubes that form a shape similar to an accordion; This is sealed in the free end of the gauge.

Advantages of Pressure Gauges

Accuracy and Reliability

Pressure gauges are known for their accuracy and reliability. With precision tolerances as tight as ±0.5% of the full scale, these devices provide essential data that helps in the precise control of industrial processes. The reliability of these instruments ensures that they consistently produce accurate readings, crucial for maintaining optimal operational conditions and preventing equipment failures.

Cost-Effectiveness

Compared to other monitoring instruments like electronic sensors, pressure gauges are more cost-effective, both in terms of initial investment and maintenance costs. A typical high-quality gauge can cost between $50 to $200, significantly lower than most digital instruments which may range from $500 to $1000. Additionally, the longevity and low maintenance requirements of mechanical pressure gauges make them a more economical choice over the long term.

Thermometer For ISO IBC Road Tank Container Spare Parts From Sunpass

Stainless Steel Bimetal Axial Thermometer

Simplicity and Ease of Use

One of the significant advantages is their simplicity and ease of use. They do not require any power supply, which makes them particularly useful in environments where power is unreliable or unavailable. Furthermore, their analogue display allows for quick and easy reading of results without the need for complex interpretations, which is often necessary with digital devices.

Durability

Pressure gauges are designed to withstand harsh conditions, including extreme temperatures and vibrations, which are common in industrial settings. We ensure that their gauges are built to endure such environments by using robust materials such as stainless steel for the casing and borosilicate glass for the viewing lens. This makes them highly durable and capable of operating effectively over long periods, even under strenuous conditions.

Types of Thermometers

Liquid-in-Glass Thermometer
Liquid-in-glass thermometers, as the name implies, are made with a sealed glass containing a liquid such as mercury or red alcohol. The volume of liquids in thermometers fluctuates as the temperature rises or falls. As the temperature rises, the liquid expands in response. The rinsing level of a liquid in the glass tube also aids in indicating the temperature. These thermometers are fragile since they have a glass tube. As a result, they’re housed in protective housings that have temperature readings written on them. Furthermore, because they do not need a power supply, liquid-in-glass thermometers are convenient, inexpensive, and ideally suited for places where there is an electrical problem.

Bimetallic Strip Thermometer
Two distinct metals are used to make bimetallic strip thermometers. When the temperature rises, the metals are bound together so that they expand at various rates. These thermometers’ two metals expand to various lengths as well. As a result, the bimetallic strip bends or curls towards the side of the bimetallic strip that has a lower thermal expansion coefficient. When the bimetallic strip moves, it deflects a pointer across a calibrated scale, which aids in determining the temperature. Furthermore, bimetallic thermometers are sturdy, low-cost, and simple to install and operate.

Thermocouple Thermometer
Bimetallic strip thermometers are made from two different metals. When the temperature rises, the metals become entangled and expand at different rates. The two metals in these thermometers also expand to different lengths. As a result, the bimetallic strip bends or coils towards the side with a lower thermal expansion coefficient. When the bimetallic strip vibrates, it deflects a pointer across a calibrated scale, allowing the temperature to be determined. Bimetallic thermometers are also durable, low-cost, and easy to install and use. The instrument shows the temperature that was measured. Temperatures up to 2800 K are commonly measured using these thermometers. The thermal junction thermoelectric thermometer is another name for thermocouple thermometers. For more information about thermocouple thermometers, visit

Pyrometer Thermometer
Pyrometer thermometers, sometimes known as pyrometers, are remote-sensing devices that aid in the measurement of temperatures at a distance. The temperature of the object is usually determined by the thermal radiation emitted by these thermometers. One of the biggest advantages of these thermometers is that they don’t require you to touch anything. Pyrometers are therefore ideal for monitoring the temperatures of moving objects or surfaces. They’re also useful for gauging the temperatures of items that can’t be touched due to their intricate structure or greater temperatures. Pyrometers are used to measure temperatures above 2000 degrees Celsius.

Platinum Resistance Thermometer
A platinum wire is used to monitor the temperature in platinum resistance thermometers. The wire is connected to an electrical resistance that varies in response to the surrounding temperature. This means that as the temperature increases, the resistance of the material utilized in these thermometers rises as well. The purpose of platinum resistance temperatures is to detect the outside temperature. These thermometers are a little slow, despite their high temperature precision. These thermometers are typically used to measure temperatures between 500 and 2300 degrees Celsius.

Probe Thermometer
One of the most common and commonly used types of thermometers is the probe thermometer. They’re primarily utilized to take temperature readings of meals and liquid samples in real time. The quick temperature readings of these thermometers make them perfect for hygiene testing at retail outlets and laboratories in the food industry. Probe thermometers are usually equipped with a pointed tip that aids penetration and immersion. Fixed probes and wired probes thermometers are the two types of probes available.

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Frequently Asked Questions

Q: What are the common applications of thermometers in industrial settings?

A: A main benefit of industrial thermometers is their versatility. Thermometers for process applications can be seamlessly integrated into a wide range of industrial settings. This includes manufacturing, food processing, pharmaceuticals, water/wastewater, energy production, and many more.

Q: How do thermometers work in scientific research laboratories?

A: A laboratory thermometer is an instrument used to measure temperature. It consists of a glass tube with a bulb at one end, containing a liquid, such as mercury or alcohol, that expands and contracts as the temperature changes. The other end of the tube is marked with a scale that indicates the temperature.

Q: How accurate are modern digital thermometers compared to traditional analogue ones?

A: While both types of thermometers can be accurate, digital thermometers generally provide more precise readings. This is because they can measure temperature to the tenth of a degree, while analogue thermometers can only measure in increments of one or two degrees.

Q: What role does calibration play in maintaining the accuracy of thermometers?

A: Without proper calibration, temperature readings can drift over time due to wear and tear, environmental conditions, or other factors, leading to inaccurate measurements. This inaccuracy can cause significant issues, such as compromised product quality, process inefficiencies, and even safety hazards.

Q: Are there specific standards or certifications required for thermometers used in quality control?

A: They must be certified by the National Institutes of Standards and Technology (NIST), traceable to NIST, or conform to NIST specifications.

Q: What are the environmental impacts of using mercury-based thermometers?

A: 4 Although the worst-case scenario may be an oversimplification, the 1g of mercury in a household thermometer has the potential to contaminate over 5.1 million gallons of water above the EPA's National Recommended Water Quality Criteria level of 0.051 μg/L.

Q: How do thermometers contribute to energy efficiency in HVAC systems?

A: Enhancing Energy Efficiency: Knowing the exact indoor temperature allows homeowners to adjust their heating or cooling systems for optimal efficiency. This precise control can lead to significant energy savings, reducing utility bills and environmental impact.

Q: What are the challenges of using thermometers in high-vibration environments?

A: Challenges Presented to Temperature Measurements in the Presence of Vibration. Vibration can cause mechanical stress in the wires of thermocouples and RTDs. Thermocouples are subject to vibration fatigue, which can lead to insulation failure and short circuits.

Q: How does temperature measurement affect product quality in pharmaceutical industries?

A: Well, it's because temperature affects the stability and potency of the drug. For example, during the drying or granulation process, keeping the right temperature is essential to prevent moisture absorption or loss that could mess with the drug's stability.

Q: What are the latest innovations in thermometer technology for precision measurements?

A: This category includes digital, infrared, and thermistor-based models, which are favoured for their precision and user-friendliness. The move away from mercury, a hazardous substance, aligns with global health and safety regulations, further driving the adoption of these safer alternatives

Q: What are the common applications of pressure gauges in industrial settings?

A: Pressure gauges are used by industry professionals to troubleshoot fluid power machines – which are designed to work within a set pressure range. With properly installed gauges, leaks and unwanted pressure changes can be monitored and addressed immediately.

Q: How do pressure gauges work in hydraulic systems?

A: A hydraulic pressure gauge is a device that measures and displays the pressure within a hydraulic system. It typically consists of a dial or digital display connected to a sensor that measures the pressure of the fluid. It is used to ensure that the system is operating within safe and accurate parameters.

Q: What are the key considerations for selecting a pressure gauge for high-pressure environments?

A: To properly select a pressure gauge, consider the gauging process, range, environment, accuracy, dial size, connection and mounting requirements. Environmental considerations include ambient temperature, air-borne particulate, condensation, humidity, water and chemicals, all of which can affect gauge performance.

Q: How accurate are modern digital pressure gauges compared to traditional analogue ones?

A: While the traditional Analog pressure gauges have their own sets of advantages, like measuring rates of change, not requiring power and being able to be viewed from a distance, they are not as accurate. Accuracy is vital when it comes to measuring pressure.

Q: What role does calibration play in maintaining the accuracy of pressure gauges?

A: Calibration, which involves comparing the measurements of an instrument against a known standard, helps identify and correct these deviations. This ensures that pressure readings remain precise and reliable. Accurate pressure measurements are crucial for maintaining process quality and consistency.

Q: Are there specific standards or certifications required for pressure gauges used in quality control?

A: NIST certification ensures gauge accuracy but it's not always required. All pressure gauges are designed to deliver readings with some degree of accuracy. However even slight variations in the design or manufacturing process can change the readings these gauges provide.

Q: How often should industrial pressure gauges be inspected and maintained?

A: The recommended calibration intervals for most pressure gauges are every 12 months or annually, but in some cases, it may be necessary to check the calibration more frequently.

Q: How do pressure gauges contribute to energy efficiency in HVAC systems?

A: By measuring the pressure levels, technicians can determine if the system needs more refrigerant or if there's an excess that needs to be removed. This precision in charging ensures that the HVAC system operates efficiently, providing optimal comfort without wasting energy.

Q: What are the challenges of using pressure gauges in high-vibration environments?

A: Vibration has a negative impact on gauge accuracy in two ways. First, it is difficult to read the pointer on a dial when a gauge is vibrating. Second, incremental damage to the pointer mechanism from vibration can eventually move a pointer off zero, producing inaccurate readings.

Q: How does pressure measurement affect process control in chemical manufacturing?

A: Measuring pressure ensures safety, optimizes process control, improves energy efficiency and maintains product quality. Industrial pressure transmitters can be used to monitor the pressure of industrial process pressure, measure fluid flow, detect liquid or gas leaks, and measure the fill level of tanks and vessels.

Sunpass Sealing Technology is one of the leading China thermometer and pressure gauge manufacturers and also a famous such supplier, welcome to wholesale cheap and good quality thermometer and pressure gauge from our factory.

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