VGKL Laboratory Catalogue Issue 14


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Main -> Separating systems -> Filtration -> Membrane filtration units

BOLA Flow Filters, Bohlender

BOLA flow filters suitable for overpressure or vacuum, usable for example as added filter or as large-area in-line apparatus in a line system. Suitable for temperatures up to +160°C. The optionally available filtering membranes can be exchanged easily. Tubing can be connected to GL threads by means of the included laboratory screw joints. The filters are produced without plasticisers and have an almost universal chemical resistance. They do not release any trace elements into the filtrate. Due to the non-adhesive surface, they are easy to clean and can be reused.

Technical data:
Material:	PTFE
Temperature resistance:	from -200°C to +160°C
Chemical resistance:	+++ universal
Vacuum:	suitable
Sterilization:	autoclavable up to 121°C
	FDA conform

Flow rate:
Flow capacity under vacuum of 1 mbar using a PTFE filtering membrane with a thickness of 0.2 mm
Membrane-Ø	Pore size	Medium	Flow rate
25 mm	1.00 µm	water	96 ml/min
25 mm	1.00 µm	air	12800 ml/min
25 mm	0.45 µm	water	11 ml/min
25 mm	0.45 µm	air	4600 ml/min
47 mm	1.00 µm	water	212 ml/min
47 mm	1.00 µm	air	48000 ml/min
47 mm	0.45 µm	water	50 ml/min
47 mm	0.45 µm	air	28000 ml/min
90 mm	1.00 µm	water	648 ml/min
90 mm	1.00 µm	air	56400 ml/min
90 mm	0.45 µm	water	264 ml/min
90 mm	0.45 µm	air	36000 ml/min

for membrane dia. mm	Filtration surface cm²	Connection thread GL	for tubing outer Ø mm	Order No.
25	3.1	14	3.2 + 6.0	10 17 67008
47	13.8	18	6.0 + 8.0	10 17 67016
90	52.0	25	8.0 + 10.0	10 17 67024