3
4
Typically between 2 and 4 check valves are used in a paint system. These help to prevent paint from flowing back into the system and keeping water out.
A pressure gauge measures pressure.. that much should be obvious. Where it can be installed really depends on WHERE you want your pressure measured at... most pressurized systems don't maintain one continuous pressure throughout the entire system... hydraulic systems, for example, will vary the the amount of flow, movement of valves, resisting pressure against pistons, etc., as it is with many other systems. So you could install it just past the pump if that's where you wanted it, or you could measure return pressure... it would help to know what the system is.
There are many accessories that are required for pressure gauges. Some of them include pressure snubbers, siphons, throttling devices, needle valves and so much more.
In many ways! The muscular system creates the heart, making diastolic and systolic pressure throughout the different 4 chambers. The push and force of these pressures and the opening and closing of the pulmonary semi-lunar valves creates what we know to be the heartbeat.
PN 16 valve can withstand 5 bar pressure. I have experienced that at 7 bar it cannot hold the pressure and starts to leak.
3 valves
16 valves
3 valves
It is probably warning you of low tire pressure. Many vehicles now have a system that senses when the tire pressure is low. On my vehicle it is the "tire pressure warning system".
They come in many sizes, possibly the most common for domestic use is 3/4 inch.
3 or 4 valves