Potential Applications “Low pressure under 500 pounds per square inch (psi) is standard for an NFPA 1901-rated vehicle,” Toren says. “From 500 to 1,000 psi, you get into high pressure, which is common in European applications where they run high- and low-pressure pumps simultaneously. Over 1,000 psi is considered UHP.”
Ultra high-pressure water jetting (defined by the SSPC as pressures exceeding 25,000 psi) can be used to remove rust, resins, chemical residues, paints and epoxies, all without the disposal measures necessitated by blasting with chemicals, solvents and abrasives.
In ultra high vacuum, the atmospheric pressure ranges from 10 -7 to 10 -12 mbar. The waste gases present hydrogen as the dominant component. These low pressures also allow the internal surfaces to be kept clean of gas.
High & Ultra High Pressure (UHP) plunger pumps and water jetting equipment rated to 2800bar (40,000psi) / 800lpm (214gpm) / 375kW (500hp).
Remember that standard sea-level pressure is around 1013 millibars, while a very strong high pressure system in the winter may measure around 1050 millibars.
Know what represents reasonable barometer readings
Normal is 29.9; range ~29.6 - 30.2 inches Hg (752-767 mm Hg)… at SEA LEVEL! Rarely (at sea level) do readings exceed 30.4 inches Hg (773 mm Hg)…
Normal pressure is 120/80 or lower. Your blood pressure is considered high (stage 1) if it reads 130 to 139 mmHg/80 to 89 mmHg. Stage 2 high blood pressure is 140/90 or higher. If you get a blood pressure reading of 180/120 or higher more than once, seek medical treatment right away.
Experience has shown that a 3,500 to 4,000 psi jetter with 6 or more gpm and the right nozzle or tool will cut out root masses, chop up hard grease, and carve out hard settled dirt. We've shipped dozens of jetters that do 9 gpm/4,000 psi for cutting out this kind of crud from 3- to 8-inch drains and sewers.
Residential water pressure tends to range between 45 and 80 psi (pounds per square inch). Anything below 40 psi is considered low and anything below 30 psi is considered too low; the minimum pressure required by code is 20 psi . Pressures above 80 psi are too high.
High Pressure Flexible Lance
✓ Mainly used in hydro jetting applications of pressure up to 1400 bar.
Ultra-high vacuum (often spelled ultrahigh in American English, UHV) is the vacuum regime characterised by pressures lower than about 1×10−6 pascals (1.0×10−8 mbar; 7.5×10−9 Torr). UHV conditions are created by pumping the gas out of a UHV chamber.
Pressure at sealevel is about 15 psi, so a perfect hard vacuum is going to be -15 gauge psi at best. So, basically, you can't even approach the 60 psi limit, so don't worry about thing on the vacuum side of the equation.
The level of vacuum can be either HV (High Vacuum, from 10-3 mbar to few 10-8 mbar) or UHV (Ultra High Vacuum, from 10- 9mbar to 10-10 mbar). These two levels of vacuum correspond to two different technologies: for the HV version, sealing is made by Viton gaskets, while copper gaskets are needed for the UHV version.
In most cases, if an instrument is labeled high pressure, its range most likely spans above 6,000 to 10,000 psi.
The ideal water pressure level is between 50-70 PSI.
If your water pressure goes above 70 PSI (even occasionally), you should install a pressure regulator to your main water line.
According to the Department of Energy and Climate Change (DECC),1 an ultra-high pressure, high temperature (uHPHT) field is an oil or gas field where the reserve is at a pressure of more than 12,500 psi and a temperature of more than 330 Fahrenheit (862 bar and 166 Celsius).
The highest sea-level pressure on Earth occurs in Siberia, where the Siberian High often attains a sea-level pressure above 1,050 hPa (15.2 psi; 31 inHg), with record highs close to 1,085 hPa (15.74 psi; 32.0 inHg).
Most residential plumbing systems are designed to handle 40 to 60 PSI of pressure, with 80 PSI being the typical maximum and anything over 100 PSI being possibly detrimental to plumbing components.
2,000 - 2,900 PSI: This is a moderate strength unit used heavier residential tasks. These units are commonly sold as either electric or gas pressure washers. 3,000 - 6,900 PSI: These high pressure models are what professional pressure washers and contractors usually use.
Your pressure washer may be capable of converting into a pipe cleaner—a jetter, as they're known—with a custom kit that includes the hose reel, control valve, jetter hose and nozzle.
For cleaning drains effectively, especially a 4-inch lateral, it is advisable to use a medium to large-sized jetter. The ideal settings would include a minimum flow of 4 gallons per minute (GPM) and a pressure of 3,000 pounds per square inch (PSI).
Of course, hydro-jetting will cost a little more than your regular drain cleaning services. Yet, in the long term, it will save you money. This method clears the entire pipe, eliminating problems for years into the future, and that saves you time and money without a doubt.
Pressure "landmarks": typical pressures reached by large-volume presses are up to 30–40 GPa, pressures that can be generated inside diamond anvil cells are ~1000 GPa, pressure in the center of the Earth is 364 GPa, and highest pressures ever achieved in shock waves are over 100,000 GPa.
Anything over 80 psi is considered too high and could damage your plumbing system. On the other end of the spectrum, anything below 40 psi is considered low pressure, and anything below 30 psi is considered too low.
Blood pressure higher than 180/120 mm Hg is considered a hypertensive emergency or crisis. Seek emergency medical help for anyone with these blood pressure numbers. Untreated, high blood pressure increases the risk of heart attack, stroke and other serious health problems.