Monthly Archives: December 2017

Grease is the Word

Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you.

Grease is the Word

“I solve my problems and I’ll see the light.” Barry Gibb of the Bee Gees

You certainly can solve and prevent excessive wear problems by applying grease to maintenance points in many vehicles and moving industrial equipment in a timely manner. One of the easiest grease techniques is through Zerk fittings. Applying the grease requires either a manual or automatic grease gun that can generate sufficient pressure to make the grease flow into the fitting. The amount of pressure depends upon the viscosity of the grease, size of the opening and temperature of the grease.

SAE Grease FittingSource: SAE Products

Typical vehicle applications can have many fittings locations and use one or a variety of fittings. For a typical 1/8″ NPT fitting, a 3k psi rating is not uncommon and some are even rated around 6k psi.

For wellhead applications, high-pressure grease fittings with 9/16″ Autoclave style threads target 20,000 psi service and those with a Blowdown Fitting Style with 1/2” NPT target 10,000 psi service.

In any case, at these pressures, the entire flow path must be able to survive the maximum pressure expected in the specific application. This includes the gun itself, and any hose, connectors and relief valves. As in many cases, while the component’s capability is designed-in, it must be verified at some point by actual pressure testing.

High Pressure Valve Lubrication Gun

While not applicable for the complete range of these high-pressure tests, All Sensors’ CPA 602 Series media isolated ceramic amplified pressure sensors can address pressure measurements up to 6000 psi.

Comments/Questions?
Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog.
Email us at info@allsensors.com

The Value of Pressure

Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you.

The Value of Pressure

Pressure makes diamonds” ― George S. Patton Jr.

While Patton was referring to the stress that can transition those who survive it into better individuals, carbon subjected to intense pressure and heat for millions of years turns into diamonds. In fact, the right combination of heat, pressure and time can crystallize many other minerals.

For natural diamonds, the pressure results from their formation at depths of 140 to 190 kilometers (87 to 118 mi) in the Earth’s mantle – below the Earth’s crust.

The Hope Diamond

The Hope Diamond

When Tracy Hall achieved the first commercially successful synthesis of diamond in 1954, a more specific pressure value was identified. Hall used a “belt” press, which was capable of producing pressures above 10 GPa (1,500,000 psi) and temperatures above 2,000 °C (3,630 °F).

Pressure is essential in creating diamonds and other precious gems, but its greatest value is in healthcare. Without your health, everything else means nothing. Blood pressure, respiratory flow, interocular pressure and other pressure measurements indicate good health or a health problem. Cost-effective microelectromechanical (MEMS) pressure sensors provide value by confirming good health or helping diagnose problems to correct them and restore good health.

Comments/Questions?
Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog.
Email us at info@allsensors.com