Different Types of Pressure Gauges

A commercial pressure gauge is perfect for utility, general-purpose applications typically found in HVAC, refrigeration, ventilation and food and beverage industries as well as for OEM and end user applications. WIKA manufacturers a line of commercial pressure gauges suited for all your needs.
Industrial pressure gauges are stainless steel gauges designed for the oil and gas, alternative fuels, chemical manufacturing, petrochemical and mobile hydraulics industries. An industrial pressure gauge is suitable for media that will not obstruct the pressure system. Industrial pressure gauges, WIKA’s most extensive product line, are designed to meet all your pressure measurement needs.

Process pressure gauges protect against extreme environments, like in oil, gas and petrochemical industries, which face system vibration, pulsation, pressure spikes and corrosion. WIKA manufacturers a complete line of process pressure gauges for all your processing, oil and gas and chemical applications.

Low pressure gauges are suitable for corrosive environments and gaseous or liquid media that will not obstruct the pressure system. WIKA’s low pressure gauges are suitable for chemical, petrochemical, plant construction, pneumatic systems and cleanrooms.

Sealgauges are a pressure gauge combined with a diaphragm seal isolator and are designed to eliminate potential leak paths. WIKA’s Sealgauges are suitable for sanitary, chemical, petrochemical, pharmaceutical and process industries.

High precision test gauges are designed for calibration and testing laboratories. These highly accurate test gauges are suitable for corrosive and industrial applications. WIKA’s high precision test gauges are intended for pressure monitoring panels, gaseous or liquid media that will not obstruct the pressure system or attack copper alloy parts and process industry applications.

Differential gauges and duplex pressure gauges are designed for the oil and gas, alternative fuels, chemical, HVAC, refrigeration and air handling industries. Differential pressure and duplex pressure gauges are for measuring two applied pressures; high and low pressure and static process pressures. WIKA’s differential and duplex gauges are suitable for corrosive environments with liquid or gaseous media, cryogenic gases and when separation of media is required.

Absolute pressure gauges measure absolute pressure without the effect of barometric pressure variation and are used when monitoring condensation pressures and vapor pressures of liquids. WIKA’s absolute pressure gauges are suitable industries and applications with corrosive environments and gaseous and liquid media.

If you would like to receive pricing and availability on Wika Pressure Gauges or other Wika Products please visit our website www.forberg.com or contact Forberg Scientific customer service.
Toll Free: 855-288-5330
Email: mechanicalsales@forberg.com

Eliminate Frustrations When Selecting Process Gauges

From: Wika Application Notes

Pressure gauges often leave maintenance professionals asking a number of questions:

Will the pressure gauge be durable enough to withstand my extreme operating environments? 

Do I liquid fill the pressure gauge or should I leave it dry? 

How long will the pressure gauge last? 

Can I be assured that the pressure gauge will give me accurate readings over its lifetime? 

What happens when I accidentally misapply the pressure gauge?  

Do I have the correct pressure gauge for my application?

The XSEL™ process gauge from WIKA Instrument Corporation is designed as the answer to all these types of questions and more.

Maintenance professionals, responsible for keeping their plants running in good order, face these questions on a regular basis. Answering these questions can be challenging, especially when they do not have the extra time and resources needed to research the right solution for every application. However, making the wrong decision about a pressure gauge can cause unnecessary additional downtime.

Choosing the right pressure gauge doesn’t have to be a difficult choice, though. The XSEL™ process gauge from WIKA helps take the guess work out of the decision-making process and is the most versatile pressure gauge in the industry today. The XSEL™ state-of-the-art pressure system design is designed to provide maximum performance and longevity in situations when no liquid-filled case fill is used. The XSEL™ gauge was designed specifically to bring the performance of a dry pressure gauge to as close as possible to that of a liquid-filled gauge for the most severe and demanding applications. For ease of installation, all XSEL™ process gauges feature:

Four sided wrench flats on the stem 

A case design that allows for the dial to be rotated every 90 degrees for four different mounting positions 

Easy access to the movement for field calibration 

A standard field-fillable case

All XSEL™ process gauges provide a long service life that helps reduce maintenance downtime. Studies have shown that the WIKA XSEL™ process gauge is capable of producing 10 million or more pressure cycles with no negative effects on the accuracy. In addition, WIKA is offering an industry's best warranty on all XSEL™ process gauges with a standard 5/10 year warranty. (See Terms & Conditions)

With manufacturing and customer service in the United States, XSEL™ process gauges are readily available in standard ranges and can also be customized to meet your specific requirements.

Whether it is reducing maintenance downtime, ease of installation or outstanding service performance, the XSEL™ process gauge series from WIKA helps eliminate the frustration and worry that most maintenance professionals experience in selecting the right pressure gauge. Simply ask for the XSEL™ process gauge from WIKA for peace of mind and to know that you have made the right choice for your processing needs.

XSEL series™ includes models 21X.34, 22X.34, 23X.34 and 26X.34

For additional information please visit our website www.forberg.com or contact Forberg Scientific customer service.
Toll Free: 855-288-5330
Email: mechanicalsales@forberg.com

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Differential Pressure: A Difference You Can See

From:WIKA
Differential pressure gauges are often found in industrial process systems and yet, they are easily overlooked or misunderstood. In fact, a differential pressure gauge can often times provide multiple solutions to everyday problems.

Differential pressure (DP or ∆p) is the difference between two applied pressures. For example, the pressure at point “A” equals 100psi and the pressure at point “B” equals 60psi. The differential pressure is 40psi (100psi – 60psi).

A differential pressure gauge is a visual indicator, designed to measure and display the difference in pressure between two pressure points in a process system. They typically have two inlet ports, each connected to the pressure points that are being monitored. In effect, the differential pressure gauge performs the mathematical operation of subtraction through mechanical means. This eliminates the need for an operator or control system to watch two separate gauges and determine the difference in readings.

Typical applications for differential pressure gauges in refineries, petrochemical or chemical plants include filter monitoring, liquid level measurement and flow measurement.

Filter Monitoring

Filtration is a vital part of an efficient operation in industrial process systems. A differential pressure gauge can be used to detect a contaminated or clogged filter. As the filter collects foreign materials, the pressure before the filter builds up. The Differential pressure gauge measures the pressure before and after the filter. The more the filter gets clogged with particles, the more the differential pressure increases. Once the differential pressure reaches a maximum value, then the operator knows that the filter needs to be changed.

Liquid Level Monitoring

Sealed tanks often have an atmospheric pressure gas blanket on top of the contained liquid. The pressure of the gas blanket adds to the hydrostatic pressure created by the water column of the content. This makes it difficult to get an accurate level measurement using a conventional pressure gauge. A differential pressure gauge measures the difference in gas pressure from the total pressure, thus translating into a true liquid level reading. Differential pressure gauges can also be used on production and injection wells to measure the difference between reservoir pressure and bottom-hole pressure, or between injection pressure and average reservoir pressure.

 Flow Monitoring

Differential pressure gauges are also used to measure the flow of a liquid inside a pipe. Utilizing an orifice plate, venturi, or flow nozzle to reduce the diameter inside a pipe; the differential pressure gauge measures the pressure before and after the orifice. The pressure drop across the orifice is then mechanically translated by the differential pressure gauge into the flow rate. Differential pressure gauges are an uncomplicated solution for a visual indicator when measuring process flow.

Why WIKA
WIKA Instrument Corporation offers a wide variety of differential pressure gauges that are best suited for industrial processing applications. WIKA's differential pressure gauges offer an assortment of housing materials, wetted parts, dial sizes, connection types, mounting configurations, and custom dial art work. Design options include: piston-style, dual diaphragm and the all-welded/all stainless steel models.

Piston-style differential pressure gauges (Wika Type 700.04) are designed for a long service life. The piston-style differential pressure gauges are best suited for use with clean liquid or gaseous media where low differential pressure ranges and static working pressures are required. Piston-style differential pressure gauges are also available with a separating diaphragm (Wika Type 700.05) for applications that do not tolerate a flow-by, such as liquid level applications. Both feature a 7 year limited warranty.

Dual diaphragm differential pressure gauges are ideal for applications requiring high working pressure in combination with very low differential pressure. The pressurized components are mounted outside the case and face plate for maximum safety. Dual diaphragm differential pressure gauges feature an all stainless steel construction with 316 wetted parts. These gauges are suitable for high working pressures up to 3600 psi regardless of scale range.

The all-welded/all stainless steel construction model (Wika Type 732.51) is best suited for applications with corrosive atmospheres or media, pressure pulsation, system vibration, wide range of ambient temperatures, or high media temperatures.

Don't overlook where a difference can be seen. WIKA Instrument Corporation's differential pressure gauges are available in an assortment of styles, designs, and solutions that are perfect for industrial process systems.

For additional information please visit our website www.forberg.com or contact  Forberg Scientific customer service.
Toll Free: 855-288-5330
Email: mechanicalsales@forberg.com

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