MIKROHARD microtubes

Single wall protective pipes are designed for the latest technology used for optical networks FTTx (Fibre-to-the-X) micro technology.

microtubes can be used for installation in an existing ducts of PE-HD tubes (MIKROHARD DI)
for direct installation in the ground without the use of additional protective tube (MIKROHARD DB)
various quantities of microtubes can be installed inside OPTOHARD protectors depending on the inner diameter of the protector and the outer diameter ot the microtube (these quantities are derived from the need to install microcables with vyrying numbers of optical fibres)

Tube design

standard (DI) - are produced with an inner wall - smooth or grooved, with sliding layer
hardened (DB) - are produced with an inner wall - smooth or grooved, with sliding layer

Material

Standard primary microtubes (DI)

these are designed for installation into existing OPTOHARD protective tubes, both empty and partially full
installed by blowing or pulling for shorter distances

item	outer diameter	inner diameter	min. bend radius	min. yield strength	max. blowing pressure
item	mm	mm	mm	N	bar
5/3,5	5	3,5	60	100	12
7/5,5	7	5,5	80	200	12
10/8	10	8	100	400	12
12/10	12	10	140	550	12
14/12	14	12	155	600	12

Hardened microtubes (DB)

for installation into trenches when constructing new access networks without additional protective tubes
the reinforced walls and mechanical properties of these microtubes ensure adequate protection for optical microcables

item	outer diameter	inner diameter	min. bend radius	min. yield strength	max. blowing pressure
item	mm	mm	mm	N	bar
7/3,5	7	3,5	60	300	15
10/5,5	10	5,5	90	500	15
12/8	12	8	120	700	15
14/10	14	10	150	900	15
16/12	16	12	160	1 100	15
20/16	20	16	500	1 000	16

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