Model	Size DN(mm)	Capacity cbm/h	Pressure kpa	Spring height(m)	Covering diameter(m)	Tube height(mm)
CP-15	Ø15 inner thread	2.0-5.0	0.02-0.05	0.5-1.5	1.5-3.0	-120
CP-25	Ø25 inner thread	4.0-6.0	0.05-0.05	1.0-2.0	2.5-5.0	-150