Air Pump Comparisons

This chart was complied by Bibus UK, it uses manufactures own data.

This data was collated from their competitors own web sites and brochures.

Bibus UK are the UK distributors of Secoh air pumps.

One UK distributor, of a make listed below has tried, heavy handedly to get me to remove this chart as it makes his product look inferior.

He has failed!

Manufacturer	Model	Open Flow	Flow at 0.2 Bar	Rated Pump	Maximum Pump
		l/min	Back Pressure	Pressure (Bar)	Pressure Given (Bar)
SECOH	SLL-40	68	37	0.2	0.37
MEDO	LA-45	53	30	0.11	0.2
HIBLOW	HP-40	68	30	Not Given	0.35
SECOH	EL-80-17	120	70	0.2	0.47
MEDO	LA80	98	58	0.15	0.25
HIBLOW	HP-80	118	58	Not Given	0.4
SECOH	EL-120W	225	120	0.25	0.41
MEDO	LA120	160	115	0.18	0.25
HIBLOW	SPP-120	190	115	Not Given	0.45
SECOH	EL-200	310	200	0.25	0.52
MEDO	Note that Medo do not make a pump bigger than a 120
HIBLOW	SPP-200	200	175	Not Given	0.6

Water Depth and pressure table.

Water Depth			=	Pressure
Meters	=	Feet		Bar G	=	Psi G
0.0		0		0		0
0.5		1.64		0.05		0.73
1.0		3.28		0.10		1.45
1.5		4.92		0.15		2.18
2.0		6.56		0.20		2.90
2.5		8.20		0.25		3.63
3.0		9.84		0.30		4.35

Summary in Bullet Points

Type “40” Size Pumps

• The Secoh out performs all others on flow at depth, maximum flow and rated pressure
• The MEDO pump is ONLY RATED for 0.11 Bar, which is just over 3.5ft deep. This pump life is rated for 20,000hrs use.

Type “80” Size Pumps

• The Secoh out performs all others on flow at depth, maximum flow and rated pressure
• The MEDO pump is ONLY RATED for 0.15 Bar, which is just over 4.9ft deep. This pump life is rated for 20,000hrs use.

Type “120” Size Pumps

• The Secoh out performs all others on flow at depth, maximum flow and rated pressure however the HIBLOW does have a published maximum Pressure of slightly higher. The HIBLOW is a single head unit that we hear has had failure problems whereas the Secoh is a twin with 2 x EL-60 Heads enclosed reducing the stress and increasing life.
• The MEDO pump is ONLY RATED for 0.18 Bar, which is just over 5.9ft deep. This pump life is rated for 20,000hrs use.

Type “200” Size Pumps

• The Secoh out performs all others on flow at depth by 25l/min, maximum flow and rated pressure however the HIBLOW does have a published maximum Pressure of slightly higher. The HIBLOW is a single head unit that we hear has had failure problems whereas the Secoh is a twin with 2 x EL-100 Heads enclosed reducing the stress and increasing life.
• The Medo pump is NOT AVAILABLE After sizes 120

Updated 05/10/04