These gauges typically have a display screen that shows the pressure readings directly. The static pressure is the operating pressure in the pipe, duct, or the environment, upstream to the pitot tube. See S1. Model SG-9440C-***: Same as above but the Pressure Gauge with Rubber cover and Gauge filter snubber - $259. Sensors with pressure tubes give more accurate measurements in applications with high air flow. May 13, 2021 · The pressure in the taps is the static pressure as discussed in Bernoulli's equation. To make it more clear, if the pressure gauge was moving at the same velocity as the fluid (no relative velocity between fluid and gauge), then the reading will increase and become identical to what you would call Static Pressure. Shop Now. It is a calibrated pressure indicator that is connected to a water pipe or tank, and converts the force exerted on it into units such as Pascal, bar, psi, and Torr. In fluid dynamics, many authors use the term static pressure in preference to just pressure to avoid ambiguity. Used in hazardous locations, these transmitters safely convert pressure and vacuum into an electrical signal to measure liquids, gases, and steam. Get a Positive Static Pressure Reading: Insert the static pressure tip into the test port. GAuges are liquid filed. Nov 21, 2023 · Gauge pressure is defined as the difference between absolute pressure and atmospheric pressure by the gauge pressure equation: {eq}P_{G} = P-P_{A} {/eq}. Static Pressure " are listed as specifications. ρ = m/V = fluid density. Ships in 1 business day. When the results of static pressure are communicated in a simple way, it can be one of the best lead-generation tools you’ll ever use. The primary increments of pressure are based on tenths of an inch of wc. It doesn’t take into account the flow of fluid. 81 m/s2, 32. Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. We can use this equation to solve for the flow velocity v. Hazardous Location Easy-SetupPressure and Vacuum Transmitters. A Noisy System. 7 psia locally), will have an absolute High Static Pressure Differential Gauges Piston Type (PPD) • Most suitable for general purpose applications including filters, pumps and chillers. BTMETER Manometer HVAC Gas Pressure Tester 189A, Dual-Port Air Pressure Meter Gauge with Hose Kit Measure Static Pressure Differential Gas Pressure for Furnace Water Column. Static-Pressure Tips. The gauge pressure computes as follows: Gauge pressure=absolute pressure- operating pressure or reference pressure or atmospheric pressure. Shipping: Free Shipping. Starting at $400. Higher resistance takes energy away from the process. A manometer with one side open to the atmosphere is an ideal device for measuring gauge pressures. Oct 28, 2011 · Bernoulli's eqn. Hydro-static pressure is created by the heaviness of a fluid above a measurement point when the fluid is at standstill. 5 psi and 25 percent Accessories Pressure Snubbers are used with water, air, gases, and oils. Reliable sources of water are essential in a fire emergency. MATERIALS- Water pressure g If at any time you would like help with a pressure calibration application or with your DHI, Ruska or Pressurements products, please don’t hesitate to call us at 877-439-7225 or email us at sales@flukecal. View Specs. 5-inch . It’s affected by things like the size and state of the ductwork surrounding your fan, as well as air temperature, altitude and whether or not the fan is material-handling. Jul 20, 2018 · As you know, boundary condition of pressure in FLUENT set in form of gauge pressure. We first need to calculate the dynamic pressure P dynamic. Where: p = pressure in liquid (N/m2, Pa, lbf/ft2, psf) ρ = density of liquid (kg/m3, slugs/ft3) g = acceleration of gravity (9. The pressure from the weight of a column of liquid of area A and height h is. These increments will range from 0. The pitot-static tube is mounted on the aircraft, or in a wind tunnel, so that the center tube is always pointed in the direction of the flow and the outside holes are perpendicular to the E. Veris PG05AM Static Pressure Gauge. In this sense, rearranging the formula for the pressure head, one obtains: {eq}P = \gamma h {/eq} The Weiss Series 088 Gauges are ideal for use on boilers, compressors, pumps, and any industrial applications that require a heavy duty internal gauge. Ambient Temperature (°F) Low Side. The gauge was also not reading the velocity head (kinetic energy), which in this case was negligible. The EM201SPKIT includes the EM201B, stepped T fittings, magnetic static pressure probes, and pressure tubing. Show. Strong pressure and acceleration waves will be present in the blast tube walls and even in the nearby surroundings. Therefore, starting from our initial 70 psi static pressure, 10 percent would be 7 psi, 15 percent would be 10. Pressure Gauges: Diaphragm Seal . Static-Pressure Tips, Pickups, & Mounting Hardware. . Ductwork components such as flexible ducts, return air grilles and air filters have static losses. Mechanical or inductive contacts can be added for alarm setting or regulation with 1 or 2 setpoints. G ¼, G ½, ½ NPT, 7-16 UNF, M20x1,5 etc. 2. Many techs will already have a high-quality digital differential manometer (like the In Figure 11. 14(c), atmospheric pressure can support a column of fluid of height h h, and so P abs P abs is less than atmospheric pressure by an amount hρg hρg (the gauge pressure P g P g is negative). Hydrant pressure tests ensure this reliability by determining the pressure and rate of flow at any point in a city’s water distribution Apr 14, 2020 · The gauge was correctly reading the static pressure and it was also showing the elevation change of 50 feet (by reading a pressure of 22 psi less than at the pump), but the operator did not correct the gauge reading for the change in height. 5 atm (36. Process Pressure Gauges: 4-1/2 . So the short answer is that we need the Apr 12, 2024 · Static pressure is measured in inches of water column (“WC) and is the amount of pressure needed to displace one inch of water in a water manometer. Products. Water pressure gauges provide real-time pressure measurements in domestic Oct 16, 2019 · Three indications that your HVAC system make have high static pressure are: Uneven Heating and Cooling. Deadweight Testers. Many people often have low airflow A wide operating temperature range of -40 to 185 deg F for operation versatility. Digital pressure gauges are modern instruments that provide accurate and quick static pressure measurements. Mounting Kits for Magnehelic gages, Strap Wrenches for uncommonly shaped objects, and Tubing in materials like rubber, aluminum, Norprene and more are available. h = depth of fluid. Measure the inside diameter of the outlet nozzle or hydrant outlet where flow occurs. Connect the gauge to the pressure taps on the duct, and it will display the static pressure. Pitot tubes were invented by Henri Pitot in 1732 to measure the flowing velocity of fluids. Questions & Answers. Sep 10, 2015 · DIY static / dynamic water pressure gauge. 44 Ashcroft 1036 In-Line Sanitary Gauge The right measurement of pressure is subject to the reference the pressure reading is measured against. The sum of static and dynamic pressure is known as total pressure; total pressure is always greater than the static pressure, except when dynamic pressure is zero. Jun 20, 2016 · Comparisons to blood pressure often work best for communicating high static pressure readings. Mechanical differential pressure gauges are local indicators without external power supply. Used to measure back pressure in the plenum area of the bin. Static pressure tips, pickups, and mounting hardware are used with manometers and transmitters to measure airflow. 95 Material: Polished Brass. 75 psig) above local atmospheric pressure (let say 1 atm or 14. Static pressure measurements are the most common type of measurement in the blast tube. Static Pressure Tips & Accessories. Whenever the fluid is at rest with respect to the measurement, the static pressure is measured. Feb 16, 2017 · Greater than 25 percent drop, negligible increase can be flowed. Eight Mile Road • Oak Park, MI 48237-3288 • TEL:248/399-8000 • FAX: 248/399-7246 • www. A wide selection of pressure ranges offers application flexibility. 4. Product Selection Guides. 110°. Rugged - stainless steel wetted construction. 4/8 bar) It can be used for recharging refrigerant, or to diagnose an a/c system based on pressure readings from your gauges. Be sure to consult the instructions provided with your A Sep 12, 2018 · Static pressure is measured by a Water Gauge (WG) and is an indication of the air flow resistance inside your fan. The DPG1000 series are available in AC/DC, loop, or battery powered units with a 4 to 20 mA output and dual alarms. 1: (a) Gauges are used to measure and monitor pressure in gas cylinders. Stagnation pressure is the pressure the fluid would obtain if brought to rest without loss of mechanical energy. May 24, 2019 · In this paper, a strain-gauge-type force sensor which can be directly mounted on the existing drop-weight device and used to calibrate the piezoelectric high-pressure sensor is designed. “A” denotes other pressure classes for The PH Series static pressure gauge transducers are designed for steam, air, gas, and liquid pressure measurement in all media compatible with 17-4PH N8 stainless steel. Our 4 1/2" case styles have a glass window, solid back with safety blow out disc standard. Sep 12, 2022 · 1. says the static pressure inside the jet should be less than atmospheric. The term static pressure is identical to the term pressure, and can be identified for every point in a fluid flow field. In this case, the air flow of a fan is measured in cubic meters per minute (m³/min) in metric units, or cubic feet per minute (CFM) in imperial units. Aug 28, 2014 · The AR1890 Digital Pressure Gauge is a professional high precision, high range, high resolution digital pressure gauge for indoor temperature measurement with a large screen display. p vacuum = p absolute; atm – p absolute For example, a car tire pumped up to 2. Offers psi (lbs. ” Silvestri suggested that manometers and pressure gauges be used when measuring static air pressures. Liquid Filled Pressure Gauges: 2 & 2. We would like to show you a description here but the site won’t allow us. They have a ±0. 2-1/2" NH/NST threaded cap pressure gauge for testing static & residual pressures in Fire hydrants or standpipe during a fire flow test. Uses a piston as a sensor to separate high & low pressure in response to pressure differentiation. com. May 7, 2018 · The pressure p in this equation is the static pressure. (This Youtube video shows how to use a gauge with two needles. Some form of elastic chamber inside the gauge case converts the pressure to motion, which is translated through suitable links, levers, and gearing Bourdon pressure gauges can be custom made to match your application requirements. May 18, 2021 · A water pressure gauge is a measurement instrument that indicates the water pressure in a system. In addition, total pressure is related to Oct 6, 2015 · Digital Manometer Differential Pressure Gauge, 2PCS 31. Mar 10, 2014 · Pressure Increments. Most of the devices are aneroid pressure gauges, such as magnehelics, that are typically mounted on the front of the hood above the sash. Typical: $40. These accessories are available in different sizes and materials based on compatibility and specific applications. $3. 335-345 psi. Select among a complete range of: Dial sizes: 40, 50, 63, 80, 100, 130 and 160 mm. Apply for a Home Depot Consumer Card. ) and water table measure. Wetted parts copper alloy, stainless steel or monel. It is a direct reading, differential pressure gauge that compares static pressure from the aircraft’s static system directed into a diaphragm with static pressure surrounding the diaphragm in the instrument case. Nov 21, 2023 · The static pressure and the head pressure can be directly related. All models feature three switch selectable ranges and a “test mode” to Used to measure back pressure in the plenum area of the bin. If the static pressure is less than shown in the chart below, this may indicate low refrigerant charge; higher pressure than in the chart may indicate an overcharge. SKU: NNI-H-CGB251. Every component that the air moves through will increase the frictional forces acting upon the air and reduce the air's velocity. There is however the possibility to measure the static pressure with a vacuum as reference, in order to determine the absolute pressure. From Bernoulli’s equation: Ptotal = Pstatic + 1⁄2 ρ v². The kit includes an aluminum surface-mounting bracket, aluminum tubing, two static pressure tips, two molded plastic vent valves, and mounting hardware. They utilize a microprocessor controlled sensor profiled for exceptional accuracy and reliability. Hydrant Wrench ; Rugged weatherproof carrying case. Higher Energy Bills. To measure the pressure, long thin tubes connect the taps to a pressure transducer located outside of the wind tunnel model. com for expert application support. A static pressure equals a gauge pressure when measured in relation to atmospheric pressure. Good for diagnosing pressure / flow issues. , 21 kPa below an atmospheric pressure of 101 kPa). Mfr # 21400. All models feature three switch selectable ranges and a “test mode” to Feb 21, 2013 · The low pressure tube should be left open to the shop. Water Level/Altitude, Water Test & Well Depth Gauges . The PH Series static pressure gauge transducers are designed for steam, air, gas, and liquid pressure measurement in all media compatible with 17-4PH N8 stainless steel. May 25, 2023 · Insert the Tubing: On one side, push the tubing onto a static pressure tip. 50-55 psi. The pressure in a static fluid arises from the weight of the fluid and is given by the expression. Since dynamic pressure is referenced to static pressure, it is neither gauge nor absolute; it is a differential pressure. The EM201B provides a simple, time saving alternative to U-tube pressure measurements. Slowly release the main valve until air is vented. Now, in my simulation and in pressure contours, pressure is static pressure. 105°. General Purpose Pressure Gauges: 3. But, if you’re noticing all three, then this could be what’s causing them. Differential pressure gauges are suitable for measuring the differential pressure between two static pressure sources in the industrial process control, such as: filter’s pressure loss and working state; Pressure loss of pipe network; Valve working state, etc. Use these sensors with differential pressure gauges and switches to measure the static pressure drop across air filters, cooling coils, and blowers in air-handling equipment. 5'' Long Soft Tubes, 13 Selectable Units, 2 Ports Gas Pressure Tester HVAC Digital Manometer, LCD Screen & Indoor Temperature Measurement 4. Find A Dealer Request Information Feb 19, 2024 · Digital Pressure Gauge. In this figure, the transducer is shown in a schematic drawing. 6 out of 5 stars 40 May 22, 2019 · In general, pressure is a measure of the force exerted per unit area on the boundaries of a substance. Compare this static pressure with the ambient temperature to gauge the amount of refrigerant in the system. Ammonia Ranges. Pressure Gauge Thread Size: Required2-1/2"1-1/2". No reviews yet Write a Review. These are static pressure tips used with manometers, gages, switches, Starting at $2. Depending upon which style of fan and heater you use to dry, a static pressure measurement is important. 78 after $25 OFF your total qualifying purchase upon opening a new card. Country of Origin: US. It can quickly measure the pre-blue detection pressure value and has a dual channel that can simultaneously detect the pressure difference between two detection ports. 0, with these numbers being listed above the indicator on the dial. TRERICE. The red needle only shows the peak reading. 3. All models feature three switch selectable ranges and a “test mode” to Static Pressure Gauge. Process connections e. Certain components are more detrimental than others. Jun 28, 2017 · Also, be sure the gauge reads in “Inches of Water Column”, the prescribed unit of pressure measurement for the HVAC industry. It comes with liquid-filled pressure gauge and a Petcock bleed-off valve for release of pressure. Air Sensors Use these sensors with differential pressure gauges and switches to measure the static pressure drop across air filters, cooling coils, and blowers in air-handling equipment. Available15 products. $126. g = acceleration of gravity. An analog vertical speed indicator (VSI) may also be referred to as a vertical velocity indicator (VVI), or rate-of-climb indicator. Pictured here is a typical static pressure testing kit (this one is wireless) that NCI recommends. Most fume hoods are equipped with static pressure gauges that measure the difference in static pressure across an orifice in the duct, or between the laboratory and the fume hood exhaust duct. Figure 14. Types of Pressure Measurement. P static fluid = ρgh where. Various measurement technologies allow differential pressure ranges from 0…10 mbar to 0…25 bar and static pressure up to 400 bar. Install them in duct through a hole and connect to your gauge with tubing. Basically a differential pressure (d/p) flow meter, a pitot tube measures two pressures: the static and the total impact pressure. Hence, a fan must have sufficient static pressure to overcome the static loss in order to deliver the required airflow. Staff Gauges/Sight Gauges . Hydro-static Pressure. EM201SPKIT. An Ammonia Range is calibrated to measure vacuum and pressure (vac/psi) along with the corresponding ammonia temperatures (°F of ammonia). Working against this airflow is the positive pressure being created within the ductwork - commonly referred to as static pressure loss. A. (b) Tire pressure gauges come in many different models, but all are meant for the same purpose: to measure the internal pressure of the tire. Using Dwyer’s simple, frictionless Magnehelic® gage movement, it quickly indicates air or noncorrosive gas pressures--either Most fume hoods are equipped with static pressure gauges that measure the difference in static pressure across an orifice in the duct, or between the laboratory and the fume hood exhaust duct. Air flow is the volume of air that is produced by the fan measured by time. High Side. View More Jul 3, 2018 · If the gauges aren’t the same during a static pressure test If the gauges don’t read the same during a static pressure test, it means: 1) You haven’t waited long enough for the pressures to equalize or 2) The orifice tube, expansion valve, or compressor reed valves are stuck, or there’s a severe restriction in the system preventing the Piston type gauge with pressure ranges from 0 to 5 psid through 0 to 110 psid & rated for static pressure up to 6,000 psi. 25. Static Pressure Tip Sensors are used for different products. Veris Static Pressure Gauge transducers are compatible with a variety of HVAC and industrial applications, such as refrigeration measurement, pneumatic pressure measurement, gas pressure measurement, pump inlet, and outlet fluid pressure. Take a static pressure reading. “STV” denotes the standard construction classification for variable volume ducts for compliance with this document when the designer does not designate a class for this application. With the bin full (or at the target grain level), turn on the fan and take the static pressure reading on the pressure gauge. NEC rated for safety, these transmitters are explosion proof, so they can be used in environments containing flammable gases and vapors. The static pressure will change based on grain depth and grain type. Before we go any further, we’ll note that these symptoms aren’t exclusive to this problem. The tip should face the airflow. e. 10 to 1. If the pressure gauge is tapped in the streamline, it also measures the dynamic pressure. View More Products Related To Static Pressure Gauge. As you go further out and the jet slows down, then it should approach atmospheric pressure. Fewer parts to fail - No silicon oil, no internal O-rings, no welds. . They are also compatible with extreme applications, such as aerospace and motor sports equipment. This will provide a measure of the resistance per unit airflow and is typically expressed in units such as pascals per cubic meter (Pa/m³) or inches of water gauge per cubic foot per minute (in. Pay $180. Add to Cart. $3699. Differential pressure is only one type of pressure measurement. Standard connection - cable gland 59 in L. It's measurable and not a fictitious number. Jun 24, 2016 · Hydrant pressure tests ensure adequate water supply to fire protection systems – and a pitot gauge is an essential tool for getting the job done. 25% accuracy in gauge and absolute ranges. NIST Certification/Testing: RequiredSG-Test: Static Gauge Certification and Testingnone. When measured relative to the atmospheric pressure, the static pressure is the same as the gauge pressure. Calibrate the gauge using the screw so the reading is zero. Gauge pressure is the pressure in some Feb 20, 2024 · Calculate Fan Static Pressure: Finally, divide the total static pressure by the airflow rate to obtain the fan static pressure. Static Water Pressure or Hydrostatic pressure in a liquid can be calculated as: p = ρ*g*h. An installed pressure sensor typically detects or experiences the static pressure only. $ 205 78. The charts are intended to help provide an understanding of a vehicle’s air conditioning system pressure, which can be helpful during the diagnostic and recharge processes. 17405 ft/s2) h = height of fluid column – or depth in the fluid where pressure is Jun 15, 2023 · Differential pressure is used to gauge the pressure outside of the plane in order to control the cabin pressure accordingly, ensuring that people can fly comfortably without needing an oxygen mask or experiencing serious negative health effects. Indicate Positive, Negative or Differential, Accurate within 1%. Thermodynamics. Since pressure measurements at any single point in a fluid always give the static pressure value, the 'static' is often dropped. wg/CFM). Aug 8, 2023 · The transducer measures the difference in pressure in the two groups of tubes by measuring the strain in a thin element using an electronic strain gauge. Static Pressure Sensors. Use the EM201B to measure gas supply and draft pressures in residential or light commercial properties. Available in two case styles - Style B: Aluminum Back Flange and Style N: Aluminum No Flange, all have The PH Series static pressure gauge transducers are designed for steam, air, gas, and liquid pressure measurement in all media compatible with 17-4PH N8 stainless steel. Helps diagnose the condition of the blower and airlock seals. Pressure gauges are divided into hydro-static and mechanical. If you want to measure static pressure loss across the pit filter, the high pressure sensor tube should be mounted in the cabin away from any booth openings, and the low pressure sensor a few inches below the pit filters. It is the actual thermodynamic pressure of the fluid. 95. Industrial Temperature Gauges . Sort By. May 22, 2019 · For instance, an absolute pressure of 80 kPa may be described as a gauge pressure of −21 kPa (i. A hydrant’s inside diameter is usually 4”. Special Application Ranges. P dynamic = P total – P static. Accessories. designate the pressure classification for the duct system independent of fan static rating. The PG series offers a stainless steel housing and all models are warranted for a period of 5 years. Nov 2, 2023 · According to Bernoulli’s equation, the total pressure is the sum of static pressure and dynamic pressure. 99. The PG series pressure transducers are compatible with a variety of HVAC and industrial applications, such as refrigeration measurement, pneumatic pressure measurement, gas pressure measurement, pump inlet and outlet fluid pressure. Select the Series 2000 Magnehelic® Gage for a versatile low differential pressure gage with a wide choice of 81 models and 27 options to choose from. The most remarkable thing about this expression is what it does 12950 W. Specialty Gauges . 0 inch wc scale, there are increments of pressure on the dial of the gauge. g. See More Items from this Family (66) Jan 1, 2012 · The majority of gauges for measuring pressure have one characteristic in common: the pressure being measured is the only source of energy required to provide a visual indication of static pressure. In fluid mechanics the term static pressure refers to a term in Bernoulli's equation written words as static pressure + dynamic pressure = total pressure. Shop our Static Pressure Gauge collection. Allows comparison of pressure and flows. per square in. ) A typical range is somewhere between 40 PSI and Feb 22, 2022 · Static Water Pressure Formula. Oct 25, 2019 · Air Flow " and " Max. 1 14. Mounting the pressure gauges for static pressure measurements requires special considerations. To measure flow, please see for Models of In-Line Gauges with Pitot. 83. The pressure gradient between the atmosphere outside and the low pressure inside the jet leads to air getting sucked into the jet (entrainment). Digital Pressure Gauge with Optional Output and Alarms. FREE delivery Wed, Apr 24. The absolute quasistatic pressure calibration principle and the measurement principle of the strain-gauge-type force sensor are described. On a 0-1. May 22, 2012 · An air filter gauge measures air pressure differentials, enabling the operator to determine when a filter is in need of replacement or repair. The transducer measures the difference in pressure between the pressure Use these sensors with differential pressure gauges and switches to measure the static pressure drop across air filters, cooling coils, and blowers in air-handling equipment. 2-1/2" Dial Quick connect Pressure Gauge, for Static Pressure Cap (0-60, 0-100, 0-160, 0-200 or 0-300 range) All Gauges are equiped with Quick connect coupler, Gauge snubber and protective rubber boot. Air Sensors Also known as pitot tubes, these can be used with manometers to measure air flow rate. The difference between the two is the Dynamic Pressure (or velocity NNI Fire Hydrant Static Pressure Gauge. Feb 17, 2015 · It has the units of pressure. Sturdy construction - suitable for high shock and vibration applications. Knowing the static pressure in the plenum can tell the operator the grain depth that works to obtain the best quality, efficiency and capacity. Various units are used to express pressure. Liquid Filled Pressure Gauges: 4-inch . 5; 4 & 4. Magnehelic is a brand name for a high-quality Dwyer analog pressure gauge that comes in many different scales. • Standard Differential Range: 0/5 thru 110 psid (0. While static gauge pressure is of primary importance to determining net loads on pipe walls, dynamic pressure is used to measure flow rates and airspeed. Static Pressure Probe, Insertion 7 1/2 In. If your gauge has more than one needle (a black and red needle), use the black needle. To determine the airflow (cfm) from an existing fan, install a static pressure gauge in the aeration ducting near the fan. PHOTO ABOVE: An accurate manometer is one of the core instruments of a good air diagnostic technician. The R-134a and R-1234yf pressure charts are for guidance when using A/C Pro ® recharge kits, refills, and gauges. Hover Image to Zoom. The other end should connect to the gauge’s high-pressure port. Find A Dealer Request Information Static Pressure is the pressure at a point in a fluid. Oct 31, 2022 · Wait a few seconds after the initial pressure spike to see what your home’s static water pressure is. [1] : 445 Gauge pressure (also spelled gage pressure) [a] is the pressure relative to the ambient pressure. To measure static pressures: Hook up a gauge set or recovery machine. 2-1/2" NST Cap with Quick connect Pressure Gauge for Static or residual Pressure readings. Unlike other gauges that measure the difference between your system and the atmosphere, these give measurements relative to zero pressure. 4 on Page 1-8. They are also compatible with extreme applications, such as aerospace and Mar 26, 2024 · In HVAC, static pressure is the strength of a fan needed to deliver the required airflow. In simplest terms, if you have a 5 ft x 5 ft x 5 May 20, 2016 · Flush the residual hydrant to remove any sediment and attach a nozzle cap with a gauge to the hydrant’s outlet. Model SG-9440-***: In-line gauge, 1½" Swivel Female NST x 1½" Male NST with Liquid Filled Pressure Gauge - $218. 15. A wide operating temperature range of -40 to 185 deg F for operation versatility. H-CGA251 or CGT251: 2½" Cap Gauge 100 Psi $145. Zoro has low prices & fast shipping on millions of tools, parts and supplies for your business. Compressed gases are used in many industrial as well as medical applications. xijvmynrnvgpwzurxkbw