NASKO OIL FENCES E4 TYPE
UNDER
GOVERNMENT ORDINANCE CATEGORY "B"



Oil Fence "B" is made to meet the specifications under Government ordinance 29 of the Ministry of transport (July 13, 1974 Maritime Pollution Prevention Law) a part of which has been recently amended.
NASKO Oil Fence B-E4 type has 6 different types, namely E4A, E4-C E4-K, E4-L, E4-N, E4-T according to their usages. In so far as configurations, size (above water level: 30cm, under water level: 40cm) and connection devices are concerned, NASKO B-E4 type oil fences are all same. The method of classification is same as A and classified into 6-different types for it's applications and materials.

THE APPLICATION UNDER CATEGORY B

  • Tankers of more than 500g/t
  • Oil Storage facilities of more than 50,000kl
  • Mooring facilities of tankers of more than 10,000kt
 　

  1. Float
  2. Rope
  3. Skirt
  4. Anchoring position
  5. Fastner
  6. Sinker
  7. Slider
  8. Float
  9. Canvas
  10. Rope
  11. Canvas
  12. Shinker




Above water Below water Rope diam Connecting part Sinker Float Tensile strength Capacity
300m/m 400m/m 14m/m 800m/ml 1kg/m 300φ×900m/ml 4,600kg 1.76m3/20m
　





Type E4-A E4-C E4-K E4-L E4-N E4-T
Canvas used Cremona
#5150		 Krafter
#6		 Krafter
#4		 Leona
T-3000		 Nylon
neo-prene		 Tetron
T-5000
Material Vinylon Polyester Polyester Nylon Nylon Polyester
Weight
kg/20m		 56kg 57kg 61kg 58kg 70kg 84kg
Usage Emergency Emergency Prevention Prevention Standard
Equipment		 Standard
Equipment
　


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