I am reviewing a big water pump station with the main suction and delivery steel pipes of 2000 mm (yes 2 meter)and 1400 mm respectively.

My company uses a reciprocating screw set-up for injection molding of nylon 66. I have noticed that varying the cooling time parameter on the injection unit affects my melt cushion.

Using a cartridge style synchornizing flow divider/combiner between the valve and the cylinder. The standard D03 bang bang valve flows approx. 14 gpm wide open which is way to fast for this applicat

I have a following scenario I would like some technical help. Utility boiler with feedwater pump HP discharge side water hammer. There are one inlet and two discharge (HP and IP) for this FW pump.

How do anti siphon valves work? I'm told that you use these to shut-off a flow, when the flow is higher than normal. I'm googling a schematic to see how these work, but luck so far.

Can you advise if its best to start a pump against a closed valve then gradually open to the fully open postion, or start the pump when the discharge is full open to the system?

Does anyone know when to use a surge relief valve?

Energize solenoid A and fluid flows through check-valve on left and out A to actuator. I cannot see how fluid flows out of B circuit? What is that solid black triangle symbol in a rectangle above the