LL-600, LL-600/900 hatches manholes

LL - 600, LL - 600/900 hatches manholes are intended for internal survey, repair and cleaning of tanks for storage and distribution of oil and oil products. The case of the hatch consists of the feedwell with the flange welded on it. To a case flange bolts and nuts through the laying providing tightness of connection the cover fastens. On a cover there are handles for transportation of the hatch in a collected state or for its opening.
On resistance to influence of climatic factors corresponds to execution of UHL of category of placement 1 in accordance with GOST P 15150 - 69. For convenience of opening and closing hatches are equipped with the rotary device.
Average resource - 5000 cycles. The cycle is understood as one opening and closing of the hatch.
Service life - 15 years.
TU 3689 - 019 - 03467856 - 2001
Certificate of conformity of POCC RU. H004.H00325 from 01.08.2006 till 01.08.2009
Permission of Rostekhnadzor to application No. PPC 00 - 21931 from 04.08.2006 till 04.08.2009