Never heard of an EGR pump and need to know what year, make, model, engine and what valve you are looking for.
A foot valve, in relation to a water well, is a check valve at he bottom of a well to keep the water from running back into the well from the pump when the pump is not running. If the check valve does not hold the water the pump will lose it's prime and will not pump water.
A schrader valve is the same type of valve as cars use. You need a pump with a pump head that can handle car tire valves and then you're all set.
Need more info here. Not sure what a heater pump is.
check valve
In heart has a four valve the two valve is pump the up and the others valve pump the blood down. heart is pump the blood
In a 2002 Escort ZX, the fuel pump has a check valve built into it. If the fuel pressure is dropping, then it is a bad pump. You would need to replace the entire pump. It could also be low compression.
Er, it's a valve in a bike pump. Usually a membrane type.
if the vehicle has an electirc fuel pump, remove the fuel pump fuse. If it is a manual type pump you will need to install a shut off valve.
If the pump, valve, and tube are OK - yes.
after gate valve, because when you want make maintenance for sump pump , you don't want all water in the pipe drop down sump pump - gate valve - non return valve
A ball valve.