mud pump pressure gauge suppliers in india factory

Dahisar East, Mumbai Sai Baba Compound, Gala No. 10, Opposite Gurudwara, Link Road & S. V. Road Junction Behind Wireless Station, Dahisar East, Mumbai - 400068, Dist. Mumbai, Maharashtra

Goregaon East, Mumbai No. 307, Shankala Industrial Estate, Gogate Wadi Off Aarey Road, Goregaon East, Goregaon East, Mumbai - 400063, Dist. Mumbai, Maharashtra

Chhatral, Dist. Gandhi Nagar B-504, Shakti Classic, Near Shakti Royal, Behind Silver Platter Hotel, Kalol, Chhatral - 382721, Dist. Gandhi Nagar, Gujarat

Behind Saraswat Bank, Near Rashmi Residency., Palghar, Dist. Thane A-104, 1st Floor, Pankil Apartment Nalasopara-Vasai Link Road, Behind Saraswat Bank, Near Rashmi Residency., Palghar - 401209, Dist. Thane, Maharashtra

To meet the demand of oil exploration and refineries ‘ANI’ has developed a gauge for the pressure measurement of ‘Crude Oil’ completely on the basis of their in-house development department know-how. The gauge is designed as rugged and dependable keeping in view of application requirement of oil industries. To take careread more...

To meet the demand of oil exploration and refineries ‘ANI’ has developed a gauge for the pressure measurement of ‘Crude Oil’ completely on the basis of their in-house development department know-how.The gauge is designed as rugged and dependable keeping in view of applicationread more...

Navi Mumbai, Dist. Thane Plot No. 4/5/6, Jawahar Co-Operative Industrial Estate, Kamothe, Near MGM Complex, Panvel, Navi Mumbai - 410206, Dist. Thane, Maharashtra

Backed with the professional workforce, we offer a wide range of Mud Pump Pressure Gauge. These products are specially designed using current techniques. The range of our product is made-up using finest quality materials, which are procured from expert and reputed sources of the industry. We offer our exclusive range afterread more...

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Incepted in the year 2002, Shubh Instruments is amongst the reputed Manufacturers, Suppliers and Exporters of Micro Brand Pressure Gauges | Pressure Gauges | Tempreture Gauges | Manometer | Rotameter | Digital Pressure Gauge | Needle Valve Gauge | Bimetal Temperature Gauge | Comparison Tester | Edgewise Draught Gauge | Pressure Gauges | Temperature Gauges | Digital Temperature Gauges | Bimetallic Temperature Gauge | Stem Type Temperature Gauge | Micro Brand Temperature Gauges | Mechanical Temperature Gauges | Diaphragm Pressure Gauges | Electrical Contact Gauges | Edgewise Draught Gauge | Temperature & Pressure Gauges Accessories | Air Preparation Unit | Manometer | Rotameter | AFRL Gauge | Gauge Cock | Gauge Saver | Air Gauge Unit | Capsule Gauge | Compact Sealed Gauge | Gauge Adapter | Liquid Filled Gauges | Mechanical Gauges | Bourdon Type Process Gauges | Refrigeration Gauges | Vacuum Gauges | Freon Gauge | Tire Gauge | Receiver Gauge | Sanitary Gauges | Steam Gauges | Thermocouple 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Sound manufacturing unit along with advanced testing facilities have made our range most sought after across Australia, UAE, Africa, Egypt and SriLanka. Widely acknowledged for accurate reading, reliability and long service life, these find wide application in hydraulic, petrochemical, automobile and metallurgical industry.

Under the aegis of our Mentor Mr. Vikas S. Shah, the company has acquired notable position amongst the top-notch pressure gauges manufacturers and temperature gauges exporters from India. His sharp business acumen and industrial experience (15 years) has enabled us expand our business in the worldwide market.

We are client driven organization, constantly strive towards satisfying our clients with quality range of industrial gauges, . Renowned for accuracy and functional competence our array has gained wide appreciation in automobile, metallurgical, textile, power, cement and pharmaceuticals industries. Our adherence to stringent quality norms right from procurement of raw material to dispatching ensures our range is in line with quality and industrial standards. Our ethical business practices and quality consciousness has enabled us garner clientele not only in India but also across Australia, UAE, Africa, Egypt and SriLanka. Our unwavering efforts to client satisfaction enable us accept easy payment modes form our clients.

Backed with the professional workforce, we offer a wide range of Mud Pump Pressure Gauge. These products are specially designed using current techniques. The range of our product is made-up using finest quality materials, which are procured from expert and reputed sources of the industry. We offer our exclusive range after

Pressure GaugesPioneers in the industry, we offer mud pump pressure gauge, electrical contact pressure gauge, pressure gauges for ice cream manufacturing machines, ammonia pressure gauges, panel mounted pressure gauges for medical equipments and freon pressure gauges from India.

We hold expertise in offering a wide gamut of Ammonia Pressure Gauges. We offer this range of the products using qualitative raw material, as par the industry set quality parameters. Our offered range is widely used for the measurement of vacuum and pressure used in varied industrial sectors. Clients from varied parts of the globe widely appreciate this range for its rugged construction and reliable performance. Furthermore, to ensure the quality of the offered products our quality experts stringently examine all the products.

We put forth for our clients a comprehensive range of Manifold Pressure Gauges. All the products offered by us are manufactured using qualitative raw material which is sourced from the famed vendors of the market. Our professionals use latest technology and tools to manufacture this range as par the industry set quality parameters. These are available in varied custom-design models.

Innovation is our forte and we strive to design and develop a precision engineered range of Thermo Pressure Gauges. With aim to offer an quality assured range of the offered products, our professionals make use of best quality raw material. Being manufactured all the products are stringently examined by our quality panel experts to ensure their flawlessness. Besides, we offer this range in varied custom-built models available in varied specifications to meet the variegated demands of our clients. Features: Reliable performance Durable in nature Sturdy construction Technical Specifications: Nominal Size (mm) 63, 80, 100 Scale Range Pressure: 0 to 4.2 kg/cm2 to 0 to 21 kg/cm2 Temperature: 0 to 1600C Accuracy (FSD) 1.00% Thread Connection 1/4", 3/8", ½ ", BSP & NPT and M-20 Mounting of Gauge Bottom, Back Case and Bezel Drawn steel, SS 304 Pressure Elements Bourdon & Bi-metal Diaphragm Nil Wetted Parts Brass, SS 304 & SS 316 Application Hot Water Boilers & Water Heaters

Connect2India is an initiative to simplify doing global trade from and with India. We are working towards our vision to "Make it Safe & Simple" for anyone wishing to do trade in India, be it exporting or importing products.

Connect2India is a global trade platform that provides you with Top Indian Manufactures and Top Indian Suppliers of Mud Pressure Gauge.Connect2india also provides trade data information and analytics like countries importing Mud Pressure Gauge along with their totalcost in US dollars. Also, the manufacturers and suppliers of Mud Pressure Gauge can be filtered according to the production year,country and other parameters. We also provide trade services for Mud Pressure Gauge like export / import documentation and other formalities required to export Mud Pressure Gauge from India and to import Mud Pressure Gauge into any other country. We handle end to end execution of trade order for Mud Pressure Gauge.

Get Mud Pressure Gauge trade finance or working capital from overseas for your export / import at best terms with Connect2India. You can also get suppliers across India for Mud Pressure Gauge products with their company profile,office addresses, contact details, phone numbers and email addresses. You can also view suppliers detailed profile with trade history if exporter,financial and registration details, criminal charges if any, certifications & awards. Connect2India helps you to find suppliers that deals in {0} products and all its sub-products from near your location, in your city and in your state. Get in touch with Connect2India to find more information like where to buy {0} from, {0} manufacturers, {0} suppliers near your location, {0} distributors etc.

Mud Pressure Gauge products could be found in various branding such as WIKA, Excel, Akvalo. Also, There could be many uses for the Mud Pressure Gauge products including Industrial. Moreover, Mud Pressure Gauge is made of Steel.

Many countries trade in Mud Pressure Gauge around the globe. The page has a detailed list of Mud Pressure Gauge suppliers based in India. Now we will figure out the potential of Indian Mud Pressure Gauge suppliers in international market.

If any country wishes to trade Mud Pressure Gauge with India, they look for a marketplace to find a reliable and competitively priced supplier of Mud Pressure Gauge for an efficient trade. It involves more than just glancing at a series of price lists. The selection of Indian supplier for Mud Pressure Gauge will completely depend on a spectrum of factors such as value for money, quality, reliability and past trade history. Connect2India provides you with 360 degree information on Mud Pressure Gauge suppliers in India to help you trade safely and easily.

Connect2India has a wide range of network around the globe for Mud Pressure Gauge. It enables other countries to trade Mud Pressure Gauge with India. Mud Pressure Gauge distributors based in Mud Pressure Gauge are systematically categorized under state, city and their respective service areas.

RIGCHINA Stand Pipe Gauges provide a quick, accurate display of pump pressure. Main applications are for standpipes and to be mounted on mud pumps. This style of gauge has been in service for many years and has proven to be a tough, dependable and reliable way to monitor pump pressure.

Excel Thermal, an ISO 9001:2008 firm, manufactures a wide range of temperature and pressure sensing instruments for industries, commercial spaces and homes. We are one of the leading pressure gauges exporters and pressure gauges manufacturers as we have been making world-class pressure gauges in India since years. We deal in an extensive range of measuring pressure tools and solutions. The extensive range of pressure sensing instruments can be categorized under these broader groups:

All the factors listed above make Excel Thermal, one of the best and most preferred pressure gauges exporters and pressure gauges manufacturers. The company has been making outstanding pressure gauges in India since many years. Our pressure gauges are used in various type of industries. Here’re some of the common applications:

As, pressure gauges are used in different type of industries worldwide, therefore, the demand of these gauges is really high. And, as, Excel Thermal manufactures the best quality products, therefore, the company is quickly moving up the popularity ladder. We understand the varied needs of our customers and we make products to satisfy their needs. We also try our best to get in touch with the customers to know their specific needs and demands. After all, there is nothing more important for us than customer satisfaction. And, our persistent pursuit of perfection has made us one of the finest pressure gauges exporters and pressure gauges manufacturers in the country.

For small orders can be delivered within 15 working days; for bulk orders, usually 15-30 working days.For urgently order, we can arrange expedited production.

We offer 12 months warranty for all of the products. Customers will enjoy free repair services for failures found within the warranty due to manufacturing quality.

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Established in 1991, Laxmi Pumps Private Limited has been producing LADA Submersible Pumps exclusively with reliable quality and excellent after-sales service. LADA is the brand under which our products are manufactured and marketed.

Established in 1991, Laxmi Pumps Private Limited has been producing LADA Submersible Pumps exclusively with reliable quality and excellent after-sales service. LADA is the brand under which our products are manufactured and marketed.

We are one of the renowned Manufacturers, Exporters and Suppliers of precision-engineered Mud Pumps in Gujarat (India). Our LX-series of Mud Pumps sold under the brand name “Laxmi” is manufacturing in compliance with international standards as our company isISO 9001: 2008 certified.

Developed by a team of highly qualified engineers using computer-aided designing and manufacturing technologies, our Mud Pumps are double-acting and piston (reciprocating) type. They are designed to endure high pressure and high discharge application. In addition, they have several in-built design and constructional features that ensure high efficiency without much electricity intake.

Our Mud Pumps are available in various models and can be ordered in bulk. In addition, we offer them at very economical prices and provide customized solutions.

Our Mud Pumps are duplex double acting reciprocating type made from a single piece alloy casting capable of handling high discharge and high pressure applications. These are ideally suitable for seismograph survey, water well, oil well, core drilling mud and cement service applications. Moreover, the pumps feature continuous tooth herring-bone gears fitted with eccentric for easy economical replacement.

We have the requisite technical and commercial expertise to expand our business to new horizons of growth. Company’s main strength is its Quality and Innovative designs. This is the reason why our products are well established as POWERSAVER PUMPS in the market.

Over the years, we have developed an ultramodern production unit spread over 550 Sq .ft of land. We have equipped our unit with the latest technologies and advanced machineries. Backed by these resources, we produce 15 pieces per month. Following are the equipment we have at our unit:

Many types of pressure measurement devices convert their readings into electric signals that can be displayed by a data acquisition device (or DAQ). Although pressure gauges are able to display their readings digitally, they are notable for being able to directly measure and display pressure readings without necessarily converting such information electronically. Pressure gauges are valued in the industrial world for their simplicity, accuracy, cost-effectiveness, and low maintenance.

In a certain sense, the origin of pressure gauges can be traced back to the early modern era and the scientific discoveries of Evangelista Torricelli, a mathematician and physicist from Italy. In 1644, Torricelli discovered the existence of vacuums in nature as well as the fact that air carries weight. Other scientists like the Frenchman Blaise Pascal continued to build on Torricelli’s discoveries. Pressure gauges as we know them today, however, did not truly come in to being until the Industrial Revolution. During the 1840s, Frenchman Eugene Bourdon began searching for a solution to the disturbing rate of fatalities involving highly-pressurized locomotive engines. The result of his efforts was the invention of the Bourdon gauge in 1849. Although initially designed for railroad application, Bourdon inadvertently made a much larger contribution to the field of industry as a whole. The Bourdon gauge enabled industrialists of all types to measure much higher-pressure levels than had previously been possible and opened the way for further gauge development. Today, the Bourdon gauge (discussed further below) continues to be the most commonly used type of pressure gauge.

The measurement of pressure is crucial to the safe and proper functioning of many types of industrial systems (e.g. water-based systems, oil-based systems, gas-based systems), and corresponding industrial products (e.g. water heaters, fire extinguishers, medical gas cylinders, etc.) Entire fluid power systems would be unpredictable and unreliable (and thus, useless) without an accurate way to measure and adjust pressure. Measuring pressure is important not only to maintain mechanisms that directly run on proper pressure control, but to properly operate mechanisms that depend on values tied to pressure control (e.g. flowmeters where pressure levels affect flow rates). In fact, pressure is so important to modern industry that it is one of the most commonly measured phenomena in commerce as a whole. Only temperature is more commonly sampled.

Pressure gauges may be fabricated with a number of materials, depending on the demands of the specific application. A couple of examples follow below.

• Many gauges are exposed to harsh substances or chemicals including those that operate in the chemical, petrochemical, refining, power, and pharmaceutical processing industries. Such gauges must be corrosion-resistant; most likely, they be made of stainless steel. On the other hand, for pressure gauges that will encounter only non-corrosive fluids or gases, brass or bronze construction will probably be adequate.

• The specific pressure conditions a gauge will operate in constitute another factor in material selection. High pressure scenarios generally require gauges made of very durable material, such as steel. In contrast, low pressure scenarios may be well served by gauges made of bronze, or similar material.

The internal mechanisms of gauges are usually made of materials such as Beryllium copper, phosphor bronze, various steel alloys, etc. Typically, the internal tubes inside pressure gauges (discussed in the following section) receive a specific form of heat treatment know as spring tempering. Such treatment increases the tube’s elasticity while (more or less) retaining its original shape.

With regard to actual size, pressure gauges display a marked degree of variability. Regardless of their specific material makeup, standard and custom pressure gauges are designed to be able to fit into any number of tight spaces or (on the other hand) to sufficiently span an uncommonly large tank.

The (relative) simplicity of pressure gauges derives from the fact that the pressure measured by the gauge is the only energy source necessary for the gauge to work. At the end of the production process, pressure gauges are calibrated according to the pressure readings of a “master” gauge that already exists. Once this is accomplished, the gauge is ready for use. Gauges are typically able to be installed at various points on a fluid power system (e.g. near a hydraulic pump’s pressure port, at a stand-alone regulator in a pneumatic or compressed air system, etc.). Sometimes, pressure gauges are even able to measure “sub-circuits” within a fluid power system that operate at different pressures than the rest of the overall system (e.g. a circuit that occurs after a reducing valve).

Two major groups of pressure gauges exist: analog pressure gauges and digital pressure gauges. This division is important to take note of since these two types of gauges operate and display information somewhat differently. Analog gauges are “traditional” pressure gauges which display information with a needle that changes position on a meter’s clock-like face (in proportion to changes in pressure).

The key component of analog gauges is the “tube” alluded to in the previous section. These types of gauges contain some type of inner, elastic chamber that is somehow connected to the pressure being measured – and thus deforms, or otherwise moves, as the pressure acting on it changes. Through an intricate system of gears (known as the movement), the chamber within an analog gauge is able to translate pressure-induced motion into the movement of a needle across a scale.

• Bourdon tubes are the most common type of elastic analog chamber. A Bourdon tube is an elastic, C-shaped chamber consisting of one of the metals described in the previous section (e.g. copper, steel). When pressurized fluid enters this tube, it causes the tube to uncoil or straighten. This uncoiling of the Bourdon tube activates the gear and shaft assembly – which, in turn, moves the needle on the gauge’s clock-like display. Bourdon tubes may also come in the form of spirals or helices. Overall, this type of elastic chamber comprises a simple yet effective mechanical method for converting changes in pressure to quantitative readings on a scale.

• Bellows are elastic chambers that expand and contract rather than uncoiling in response to pressure changes. They consist of some type of thin-wall tubing and are almost always supplemented by a coil spring that strengthens its fatigue life.

• Diaphragms or stacks (single or multi) Elastic chambers consisting of thin metal sheets within a cup are known as diaphragms or stacks. This type of chamber moves as pressure is applied to its interior. Unlike bellows, diaphragms do not utilize supporting spring structures.

Although analog gauges are still very popular, they are increasingly being replaced by digital gauges, which are easier to read and more accurate. Unlike analog gauges, digital pressure gauges require another power source (e.g. batteries) to operate. They are attached to an additional measuring device, which measures pressure using sophisticated sensors and microprocessors. Once this additional measuring device feeds results back to the gauge, the gauge is able to display a numerical reading.

Digital gauges operate either using strain gauge technology or piezoelectric technology. Strain gauge sensors indirectly measure mechanical pressure by measuring changes in the electric resistivity of conducting materials. (Most often, this material is silicon, bonded metal foil, or some type of film – polysilicon film, thick film, sputtered thin film, etc.) When pressure mechanically deforms the chamber (usually a diaphragm) within the gauge, changes in resistivity also occur. These resistivity changes are then electronically converted and subsequently displayed. Piezoelectric type digital gauges work in a similar fashion. However, instead of measuring changes in resistivity, piezoelectric sensors measure electric charges that develop across them, proportional to mechanical changes in pressure.

To accommodate many different applications, manufacturers make many different types of pressure gauges. Examples of these include water pressure gauges, air pressure gauges, oil pressure gauges, temperature gauges, gas pressure gauges, fuel pressure gauges, differential pressure gauges, and vacuum pressure gauges. Some of the uses of these gauges are more obvious than others.

Water pressure gauges (naturally) monitor the pressure of any water-based system. Quite commonly, they are found attached to tanks, where they monitor the pressure of the water within.

Gas pressure gauges measure and display gas pressure. They are especially prevalent in factories and manufacturing facilities, where they keep track of the flow rate of both high and low pressure natural gas and propane-based systems. Fuel pressure gauges also check gas pressure levels, but they do so in the context of automobiles. They measure and display the fuel supply, or amount of gas, left in a vehicle tank.

Vacuum pressure gauges measure and display the pressure within vessels or systems that are immersed in a sub-atmospheric or vacuum environment. Vacuum environments are particularly used to create cold temperatures.

Seal gauges are made specifically to stop and avoid potential leaks. As such, they are designed with the addition of a diaphragm seal isolator. Most of their applications are found in the process, pharmaceutical, chemical, petrochemical, and sanitation industries.

Some pressure gauges may be designed to specifically measure substances flowing at either exceptionally high velocities or exceptionally low velocities. High pressure gauges are important to manufacturing and industrial applications, particularly those related to high pressure hydraulic technology (e.g. hydrodemolition, hydroblasting pumps, and water cutting machines). Low pressure gauges are extremely accurate and sensitive, generally measuring pressures between ten and fifteen PSI. They are especially important to applications that take place in environments with frequent pressure fluctuation.

Thus far, only pressure gauges that operate with reference to gauge pressure have been discussed. A pressure gauge that measures gauge pressure uses the surrounding atmospheric pressure as the standard by which it measures. However, this is not the only way for a pressure gauge to operate. The main exceptions follow below.

Absolute pressure gauges measure pressure with reference to a perfect vacuum. This means that absolute pressure gauges include surrounding atmospheric pressure within their overall pressure reading. Due to the name of the standard by which they operate, absolute pressure gauges are commonly misidentified as being identical to vacuum pressure gauges. Diaphragm type chambers are typically used in absolute pressure gauges.

Sealed pressure gauges operate in a manner more similar to normal gauge pressure mechanisms. However, instead of using the surrounding atmosphere as the standard by which to measure pressure, sealed pressure gauges simply use some fixed pressure quantity – that may not necessarily correspond to the surrounding atmosphere – in order to make measurements.

Differential pressure gauges are a bit different than other gauges. Instead of measuring pressure as a whole, they measure the difference in pressure between two points of contained liquid or gas. They are popular for filtration applications.

Yet another way to approach gauge classification is focusing on the specific application a gauge is used for. To provide just one example, magnehelic gauges are a special type of pressure test gauge that uses a diaphragm and measures static pressure within the HVAC industry. Many gauges are designed for use with a specific type of product. A single example is the use of dial gauges or weighted gauges for use with pressure canners.

More so than other industrial devices, pressure gauges are frequently used in conjunction with complementary instruments, like pressure sensors, pressure transmitters, pressure transducers, and switches. With the addition of these devices, gauges increase in accuracy and precision, displaying more specific readings with smaller margins of error. They may also be equipped with electric contacts that sound alarms, turn on signal lights, or control a valve or pump. Two specific examples of accessories used to increase the functionality of gauges are test point adapters and gauge isolators. Test point adapters fit to gauges and allow them to screw onto various points within the system, enabling a wide range of test pressure measurements without the purchase of multiple, separate gauges. Gauge isolators turn a pressure gauge into an “on/off” mechanism by mounting between a gauge and its circuit; unless a button is activated, the gauge will not be exposed to and will not read fluid pressure.

Many accessories for gauges have protective purposes. As sophisticated industrial instruments, gauges face a variety of threats such as pipe vibration, water condensation, etc. The aforementioned gauge isolator also serves a safety function by protecting a gauge’s internal mechanism from sudden pressure spikes. Snubbers provide a similar function by damping intense fluctuations in pressure. A variety of case protectors can be purchased to protect the exterior of a gauge from hard shocks, while chemical seals are available to protect gauges from being corroded or plugged up. While pressure gauges generally do not require a high level of maintenance, investing in protective accessories is one of the best things gauge users can do to protect and extend the life of a gauge.

When choosing a pressure gauge for a specific application, several factors should be taken into account. Some of the major considerations include the size of the dial, the size of the connection or port the gauge will be using, units of measurement that the gauge is capable of (e.g. PSI, mmHg, PA, etc.), compatibility of gauge material with the operating conditions (including temperature, corrosiveness, etc.). and whether the gauge should be dry or liquid filled (the latter tends to have longer life due to shock absorption).

One of the most important factors to consider is the pressure range of the gauge. Generally speaking, you should use a gauge that is able to read at least twice the amount of the expected working pressure. This provides a reasonable margin of safety for using the gauge. As a rule of thumb, operating pressure should never go above three-quarters of a gauge’s reading range.

A corollary of the rules of thumb involving pressure is the importance of choosing application-specific pressure gauges. Hydraulic systems, for example, should only utilize hydraulic gauges designed for operating under normal conditions in hydraulic environments.

It is important to note that the different types of chambers utilized by pressure gauges correspond to different ideals concerning pressure conditions. Bourdon type gauges are especially useful for medium to high pressure environments. However, they do not work well for low pressure scenarios. Gauges which utilize bellows and diaphragm chambers, on the other hand, are well suited to sensing low amounts of pressure and incremental changes within them.

For even greater accuracy – as well as greater speed, reliability, and durability – digital pressure gauges should be used in place of analog devices (despite their greater expense). Keep in mind, however, that the limitations of analog devices can often be overcome with the variety of accessories available for pressure gauges. (For example, some analog gauges possess temperature compensation equipment and multiple dial sizes to enhance the accuracy of their readings.)

Since so many factors constitute proper pressure gauge selection, investing in a quality pressure gauge provider is one of the best choices that pressure gauge consumers can make. You should focus on finding a reputable provider that offers a broad array of gauge products and/or services (e.g. recalibration services.) Working with a quality supplier will ensure that you are able to maximize the usefulness and effectiveness of your pressure gauges for your particular application.

This type of pressure gauges are used under to control the electric operation of compressor, pumps, motors, presses, hydraulics and pneumatic equipment. Furthermore they are used in several industries like chemical & petrochemical, refineries & oil exploration, on shore & off shore, ship building and last but not least power generation and distribution

A diaphragm pressure gauge uses the deflection of a thin, flexible membrane to measure fluid pressure in a system. The diaphragm isolates internal components from the media, making this gauge suitable for corrosive or contaminated liquids or gasses. This gauge is used for low-pressure measurements, such as measuring atmospheric pressure or monitoring pressure in gas canisters. They are also referred to as flexible membrane pressure gauges. Learn more by reading our pressure gauge overview article.

Figure 2: Operating principle of a diaphragm pressure gauge: pointer (A), upper and lower housing (B), pressure inlet (C), pressure element (D), and diaphragm (E).

Pressure inlet:System media enters the pressure gauge at the pressure inlet (Figure 2 labeled C). The inlet has a threaded (e.g., NPT or BSP) or flanged process connection.

Diaphragm:The media presses against and proportionally deflects the diaphragm (Figure 2 labeled E). The diaphragm is a thin, circular, flexible, metal disc. It is typically made of stainless steel for corrosion and high-temperature resistance.The disc can be corrugated or smooth. Smooth discs are only suitable for small deflections and therefore are unlikely to operate well in industrial applications.

Housing:The housing securing the diaphragm has upper and lower components (Figure 2 labeled B). The lower housing connects to the pressure inlet and the upper housing supports the diaphragm in the case of high pressure.The two components can be flanged or welded together. Welded connections are preferable for sanitary applications.

Pressure element:The pressure element (Figure 2 labeled D) reacts to the diaphragm’s deflection. Typically, the pressure element will be a rack and pinion setup or a bourdon tube setup. For the latter, the pressure element is filled with fluid to transfer pressure changes throughout the element.For a digital pressure gauge, a piezoresistive component is typically used.

Pointer:Finally, the movement of the pressure element proportionally translates to the pointer"s movement so a user can read the system pressure from the pressure gauge.

A digital diaphragm pressure gauge is a pressure sensor that utilizes a diaphragm with piezoresistive components. When a medium exerts pressure, the diaphragm bends, altering the cross-sectional area of the piezoresistive elements and leading to a change in their electrical resistance. This generates a voltage difference, which is then processed by the sensor"s microprocessor to produce a pressure reading on the digital display.

There are two reasons to choose a diaphragm seal pressure gauge over other types. The first is when it is necessary for the system"s media to not mix or contact the working parts of the gauge past the diaphragm. The second is for measuring low pressures. A diaphragm gauge can accurately measure pressure as low as 16 mbar (0.23 psi). As seen in the list below, a diaphragm pressure gauge is applicable in many different scenarios.

Material: Use chemically compatible materials for the gauge’s parts that contact the media. Stainless steel is preferred due to its corrosion and high temperature resistance. Whether considering stainless steel or a different material (e.g., brass), see our chemical compatibility chart for more detail on material compatibility.

Pressure ranges: A diaphragm gauge must accurately display the system"s maximum and minimum operating pressures. The system"s maximum working pressure should not exceed 75% of the gauge"s full-scale range and 65% of the pulsating range.

Temperature range: Select a gauge with material that can withstand the working temperature. In general, diaphragm pressure gauges can operate well between -20 °C and 100 °C (-4 °F and 212 °F). Always check a gauge’s operating temperature range before using it.

Diaphragm size: System pressure and diaphragm diameter have an inverse relationship. Low pressures require larger diameter diaphragms, so there is more surface area for the system media to press against.

Housing seal: Whether the housing around the diaphragm is two flanges or a welded seal depends on the application. Sanitary applications that require further protection against leaking typically use a welded seal.