Constant Pressure
 |
 CYCLE STOP VALVE CSV1W CONSTANT PRESSURE CONTROL VALVE $99.00 Time Remaining: 24d 20h 43m Buy It Now for only: $99.00 |
 CSV1A CYCLE STOP VALVE Constant Pressure Pump Control w Built in Manifold CSV1Z $174.95 Time Remaining: 9d 17h 9m Buy It Now for only: $174.95 |
 CYCLE STOP VALVE CONSTANT PRESSURE PUMP CONTROL VALVE $149.00 Time Remaining: 22d 19h 42m Buy It Now for only: $149.00 |
 Goulds 3AS30 Aquavar SOLO Varible Speed Constant Pressure Controller BF30 $1,430.58 Time Remaining: 28d 16h 26m Buy It Now for only: $1,430.58 |
 BRAND NEW CYCLE STOP VALVE CSV1A CONSTANT PRESSURE PUMP CONTROL REPLACES CSVIZ $185.50 Time Remaining: 16d 15m Buy It Now for only: $185.50 |
 Goulds 5AB2 Aquavar ABII Variable Speed Constant Pressure Controller Aquaboost $2,086.49 Time Remaining: 28d 16h 26m Buy It Now for only: $2,086.49 |
 Grundfos SQE CU301 CU321 Transducer Sensor for Constant Pressure System $160.00 Time Remaining: 2d 23h 42m Buy It Now for only: $160.00 |
 Cycle Stop Valve CSV1 or CSV125 Constant Pressure VALVE CSV140 CSV150 CSV160 $72.95 Time Remaining: 12d 19h 5m Buy It Now for only: $72.95 |
 Goulds Aquavar ABII Variable Speed Constant Pressure Controller Aquaboost 2AB2 $791.79 Time Remaining: 28d 16h 26m Buy It Now for only: $791.79 |
 Goulds 1AS15 Aquavar SOLO Varible Speed Constant Pressure Controller 05 15 HP $1,032.55 Time Remaining: 28d 16h 26m Buy It Now for only: $1,032.55 |
 CYCLE STOP VALVE CSV1A CONSTANT PRESSURE PUMP CONTROL REPLACES CSVIZ $174.50 Time Remaining: 5d 4h 17m Buy It Now for only: $174.50 |
 CYCLE STOP VALVE CSV1W CONSTANT PRESSURE PUMP CONTROL $115.00 Time Remaining: 2d 19h 39m Buy It Now for only: $115.00 |
 Grundfos 3 SQE 05 07 10 15 Constant Pressure Submersible Well Pump 10 15 22 GPM $750.00 Time Remaining: 6d 12h 53m Buy It Now for only: $750.00 |
 MONODRIVE CONSTANT PRESSURE CONTROLLER BY FRANKLIN $769.00 Time Remaining: 24d 5h 35m Buy It Now for only: $769.00 |
 Goulds 3AB2 Aquavar ABII Variable Speed Constant Pressure Controller Aquaboost $1,262.59 Time Remaining: 28d 16h 26m Buy It Now for only: $1,262.59 |
 Goulds 1AB2 Aquavar ABII Variable Speed Constant Pressure Controller Aquaboost $669.29 Time Remaining: 28d 16h 26m Buy It Now for only: $669.29 |
 Goulds 3AS50 Aquavar SOLO Varible Speed Constant Pressure Controller 5 HP BF50 $2,246.99 Time Remaining: 28d 16h 26m Buy It Now for only: $2,246.99 |
 CYCLE STOP VALVE CSV1W CONSTANT PRESSURE PUMP CONTROL $124.50 Time Remaining: 22d 2h 16m Buy It Now for only: $124.50 |
 Goulds 3AS20 Aquavar SOLOVariable Speed Constant Pressure Controller BF20 $830.24 Time Remaining: 28d 16h 26m Buy It Now for only: $830.24 |
 CSV3B2T CYCLE STOP VALVE CONSTANT PRESSURE CONTROL $515.00 Time Remaining: 10d 23m Buy It Now for only: $515.00 |
 CYCLE STOP VALVE CSV2W125T25 75 CONSTANT PRESSURE FREE SHIPPING $264.15 Time Remaining: 23d 4h 5m Buy It Now for only: $264.15 |
 CYCLE STOP VALVE CSV2W125T50 120 CONSTANT PRESSURE $275.00 Time Remaining: 6d 21h 52m Buy It Now for only: $275.00 |
 CYCLE STOP VALVE CSV2W125T50 120 CONSTANT PRESSURE FREE SHIPPING $264.15 Time Remaining: 23d 4h 3m Buy It Now for only: $264.15 |
 Centripro S Drive Constant Pressure Aquavar SPD 10 HP SPD40100F 460V VFD $2,482.40 Time Remaining: 23d 52m Buy It Now for only: $2,482.40 |
 CYCLE STOP VALVE CSV2W125T25 75 CONSTANT PRESSURE $275.00 Time Remaining: 6d 21h 40m Buy It Now for only: $275.00 |
 Centripro S Drive Constant Pressure Aquavar SPD 75 HP SPD40075F VFD 460V $1,856.45 Time Remaining: 23d 52m Buy It Now for only: $1,856.45 |
 Centripro S Drive Constant Pressure Aquavar SPD 2 5 HP $1,776.20 Time Remaining: 23d 52m Buy It Now for only: $1,776.20 |
 Goulds Centripro S Drive Constant Pressure Aquavar SPD 10 20HP SPD20200F 230V $3,691.50 Time Remaining: 23d 52m Buy It Now for only: $3,691.50 |
Constant Pressure
Pressure Relieving Mobility Aids
For those people who spend a lot of time in bed, in a powerchair or wheelchair, or a riser recliner chair, the risk of pressure sores can be high. With the right pressure relieving mobility products and remembering to change positions regularly, the risk of pressure sores can be greatly reduced.
Bed sores are areas of skin that are damaged, and usually affect the bony areas of the body, such as heels, hips, elbows and head. Pressure sores are serious, and can damage the fatty tissue underneath the skin. Untreated, they can lead to infection and blood poisoning, and in severe cases, they can even be life threatening.
Pressure sores and ulcers, or decubitus, are caused a person staying in the same position without moving; shearing, which is when the skin drags when slipping or sliding in bed and friction from poor lifting, moving and handling techniques. Those susceptible to bed sores include those with reduced mobility, those suffering from an acute illness, the immobile, the elderly, the very young, and the malnourished. The patient can also be affected by moisture and any medication that they may be taking. For healthcare professionals as well as the individual, pressure relief is a very important consideration in the rehabilitation process.
There are several different types of mobility aids which can help reduce the risk of pressure sores. Here is a list of six types of pressure relieving mobility products suitable for home use or use in a care giving environment.
1.Constant Low Pressure devices such as mattresses and overlays spread the body weight over a larger area. A pressure relieving mattress has a supportive, or "memory foam" base, which means that no additional mattress topper is needed. Some types of pressure relieving mattress are flexible enough to be suitable for electric adjustable mobility beds. Mattress toppers, as the name suggests, sit on top of a traditional mattress, and mould to the shape of the body, and so provide additional comfort. Pressure relieving bed pads have sewn in sections to prevent the material moving, and so reduce friction. These bed pads are normally for temporary rather than long term usage. Foam and fibre mattress overlays are used with a mattress, and allow the air to circulate. This reduces the build up of moisture which can lead to pressure sores. The various types of mattresses, toppers and overlays are available for different situations. For example, some are more suited for medical use than others.
2.Alternating Pressure devices mechanically vary the pressure beneath the patient, and may not be suitable for those with fractures. These types of mobility devices are often programmable so that the patient gets the correct amount of support. These pressure relieving systems are usually virtually noise and vibration free. Some models work on the patient's BMI (Body Mass Index), and depending on the model, the control unit can be used with several mattresses to save on costs and storage.
3.Low Air Loss pressure relieving devices work by supporting the patient on air filled sacks inflated at a constant pressure, through which air can pass. Air fluidised devices are designed for high-risk individuals who are not able to tolerate pressure. The airflow is warmed through sand-like grains or beads which are in an air-permeable fabric to create a dry flotation system.
4.Pressure relieving mobility devices are available for bony areas of the body such as the heels, hips, elbows and the head which are also at risk of pressure sores as the skin is thinner and so is damaged more easily. These types of mobility aids are commonly used in hospitals and nursing homes as well as domestically. Depending on the type of protector, medication can be applied to the protector.
5.For people who sit in the same position all day, using a proper pressure relieving cushion can drastically reduce the risk of pressure sores. If you use a riser recliner chair, you can adjust the position of the chair to change the position and spread the pressure. If a traditional type of chair is used, a dedicated chair cushion can help. Common types of cushion include ring cushions which are round and inflatable, and waffle cushions which can be inflatable and have ventilation holes which allow good air circulation.
6.Wheelchair and powerchair cushions are very important to reduce the risk of pressure sores and should not be overlooked when purchasing a wheelchair or powerchair. Purchasing the right size of cushion for the chair is vital in order that the cushion can be effective.
Using the correct pressure relieving mobility products is important and has measurable health benefits; however the most important point to remember is that changing positions regularly is the best way of preventing and treating pressure sores.
About the Author
For more information about Mobility Aids and Disability Aids, Healthcare Products and Occupational Therapy Supplies, please visit www.handyhealthcare.co.uk
How much work does a gas do when it expands against a constant pressure of 0.500 atm?
How much work does a gas do when it expands against a constant pressure of 0.500 atm from a volume of 50.00 mL to a volume of 350.00 mL?
A. 15.2 J
B. 0.150 J
C. –15.2 J
D. –0.152 J
Can't work the calculations right now, but it should just be the product of the pressure and the change in volume (0.5 atm)(300 ml). The trick are the units. You'll have to convert from atmospheres to pascals and from ml to L. (1000ml -> 1L). Good luck. Work for a constant pressure process is just the change in volume times the pressure.
Constant Pressure Dispensing System