Frequently Asked Questions
What should I do if I need load holding on the rod of a high ratio cylinder?
When should I use a vented counterbalance valve?
Where should a vented valve be vented?
Where should I mount pilot-to-open check valves in my system?
Where would I use a DR__ instead of a DP__?
Where would I use a kick-down relief?
Why am I getting a higher inaccuracy than Sun claims?
Why can't I block the pilot vent port? That area is positively sealed, isn't it?  
Why can't I use a counterbalance valve in a closed loop transmission circuit?  
Why do you call it a hammer valve?
Why do you offer 2 check valve cracking pressures?
Why does Sun profile the ends of your sandwich manifolds? Is there a functional reason?
Why does Sun use 2 slip orifices?
Why doesn't Sun anodize their aluminum bodies?
Why is it that your valves have pilot ratios below 10:1, while other manufacturers start at 7:1 and go up?
Why is the minimum opening pressure (bias spring pressure) on pilot-operated FLeX cartridges lower than competitor product?
Why is turning the adjust screw for counterbalance valves opposite of most other valves?
Why won't my device connect to the XMD?
Why won't the XMD send output to the coil when an input is provided?
Will your reducing/relieving valve relieve my pump to tank?