Pressure suits regulate air pressure for high-altitude pilots and astronauts in low or no air pressure environments. Altitudes above 50,000 feet require a pressure suit for safe function. Military and space suits share common characteristics. Altitude sickness can occur above 33,000 feet, and supplemental oxygen is required above 39,000 feet. Space suits require more sophisticated […]
Hypertension tests include blood pressure measurement, physical exam, medical history, and additional tests to trace the cause of high blood pressure and assess any damage to internal organs. Tests may include urinalysis, blood tests, chest x-ray, and ECG. Additional tests may be ordered for patients with negative results. The tests guide the doctor in treatment […]
Back pressure is the resistance and pressure in a pipe caused by changes in its environment, slowing down fluid movement. In computing, it refers to a buildup of data in a network switch. Water hammer is a momentary pressure change caused by fluid bouncing off a change in the pipe, while back pressure is the […]
A manometer measures pressure in gases or liquids. Pressure gauges are used for various purposes and should be calibrated periodically. Different styles of gauges are available, including Bourdon tubes and diaphragms. Monitoring pressure in pressurized systems is important for safety. Some gauges can be connected to remote indicator panels or automatically shut down a system […]
Burst pressure is the maximum pressure a system can withstand before breaking. Factors include material quality, maintenance, and environmental conditions. A burst pressure test can determine if a component is appropriate for its intended use. Failure can be dangerous, causing injury or unexpected releases of pressurized materials. Burst pressure is sometimes defined as the point […]
Pressure reducing valves control the flow of liquid or gas and shut off once a certain pressure level is reached. They are used in various industries for water pressure relief, propane gas, SCUBA diving, and RVs. They can be set for any downstream pressure level and contain a diaphragm, gauges, and a regulating handle. Water […]
Air purifiers improve air quality by scrubbing and regulating humidity levels. Pressure washers circulate air over chilled water to remove impurities and add moisture. Air washers use a similar concept with added filters. Efficient devices can reduce energy consumption, and building design can also help. An air purifier is equipment designed to improve air quality […]
Choosing the best pressure-treated wood involves considering warranties, moisture levels, and intended use. Low moisture wood is recommended to prevent warping and rot. Check warranties for coverage and duration, and consider coatings for specific needs. Consider environmental impact and choose wood suitable for above or below ground use. Pressure-treated wood is wood that has been […]
A pressure trap is an opening in a wall that stops the flow of gas or liquid to measure pressure. It must be perpendicular to flow direction and material. It reduces noise and damage in exhaust systems. A pressure test machine ensures correct installation. A pressure trap, or static pressure trap, is an opening within […]
Tire pressure monitoring systems use sensors to provide real-time information on tire pressure. There are two types: direct systems with sensors on each tire and indirect systems that use the anti-lock braking system. Direct systems are more accurate but have drawbacks, while indirect systems are cheaper but less comprehensive. Tire pressure monitoring systems are designed […]
Pressure pads are a simple and cheap means of automating tasks. They consist of two parts with a break in the circuit under the pad. When pressed, the circuit completes, triggering a response in a connected device. They were commonly used to open doors in retail stores. Pressure pads can work on an on/off or […]
Pelvic pressure during pregnancy is caused by the enlargement of the uterus and stretching of pelvic ligaments. It can lead to pain, nerve compression, and decreased circulation. Treatment options include exercise, good posture, and hot/cold packs. Pregnant women commonly experience pelvic pressure and the main cause is the enlargement of the uterus. As the fetus […]
Working pressure is the standard level at which a system operates. Safety valves and gauges are used to prevent catastrophic failures. Pressure can be controlled by charging the system and using valves. Temperature and altitude affect pressure. Chronic over or under pressurization can lead to malfunctions and should be evaluated by a technician. Working pressure […]
Pressure-treated wood is treated with preservatives and pressure to make it resistant to water, rot, termites, and fungi. It is used for various applications and is inexpensive. There are three types of preservatives used, and it is considered safe by the EPA. It can even be used in gardens but should not be consumed by […]
A water pressure regulator controls water pressure to prevent damage to plumbing systems. It is adjustable and can be found near the water supply outside the home. Water heaters have a temperature pressure regulating valve to prevent explosions. It is important to know where these safety features are located and periodically test them. A water […]
Discharge pressure is the force of liquid exiting a pump, influenced by other aspects of the pump. Flow rate describes how much material can flow through the pump, while capacity measures how much liquid the pump can hold. Head pressure is determined by the force of the motor and the nozzle design. Discharge pressure is […]
Blood pressure naturally fluctuates throughout the day due to factors such as exercise, diet, and environmental factors. However, if blood pressure remains abnormally high or low for extended periods, it may indicate an underlying health condition. Chronic hypertension can be caused by hereditary and environmental factors such as smoking, drinking, high salt intake, being overweight, […]
Pressure switches are used to initiate an electrical connection when a certain amount of pressure is applied. There are two types: pneumatic and hydraulic, used in various applications including battery charging, gas compressor regulation, engine oil pressure warning, and swimming pool temperature control. A pressure switch is a mechanism designed to initiate an electrical connection […]
Pressure forming is a process for shaping plastics by forcing a hot sheet against a concave mold with compressed air. It creates more detail than vacuum forming, allows for sharp edges and undercuts, and has low tooling costs. It’s a viable alternative to injection molding for small quantities but not as durable for large production […]
Pressure vessels are containers that hold gases or liquids at a certain pressure. They are typically made of steel and can be coated with metal, ceramic, or polymers. The most stable design is a sphere, but most are cylindrical. Safety is important as leaks or explosions can cause harm. Countries have created design codes to […]
