• COSMOIND’s quality system complies with ISO 9001, 14001.
  • COSMOIND’s EF fittings are manufactured in accordance with domestic standard(KS M 3408-3, KS M ISO 8085-3) and foreign standard(ISO 4437-3, EN 1555-3)
  • COSMOIND’s quality system complies with ISO 9001, 14001.
  • COSMOIND’s EF fittings are manufactured in accordance with domestic standard(KS M 3408-3, KS M ISO 8085-3) and foreign standard(ISO 4437-3, EN 1555-3)

EF Reducer 

Unit : mm

ISO[d](mm)
ASTM[d] (Inch) 
D1(mm) 
D2(mm) 
L(mm)
[d1]
[d2] 
[d1]
[d2]
25
20
3/4" IPS
1/2" IPS
40
40
92
32
25
1" IPS
3/4" IPS
47
47
96
32
20
1" IPS
1/2" IPS
47
47
96
40
32
1 1/4" IPS
1" IPS
57
49
110
40
25
1 1/4" IPS
3/4" IPS
57
43
110
40
20
1 1/4" IPS
1/2" IPS
57
43
110
50
40
1 1/2" IPS
1 1/4" IPS
69
59
120
50
32
1 1/2" IPS
1" IPS
69
51
120
50
25
1 1/2" IPS
3/4" IPS
69
43
120
50
20
1 1/2" IPS
1/2" IPS
69
37
120
63
50
2" IPS
1/2" IPS
84
66
98
63
40
2" IPS
1 1/4" IPS
84
55
95
63
32
2" IPS
1" IPS
84
47
92
63
25
2" IPS
3/4" IPS
84
40
92
75
63
2 1/2" IPS
2" IPS
98
84
137
90
75
3" IPS
2 1/2" IPS
119
98
154
90
63
3" IPS
2" IPS
119
84
146
90
50
3" IPS
1 1/2" IPS
119
66
142
90
40
3" IPS
1 1/4" IPS
119
55
142
110
90
4" IPS
3" IPS
143
119
190
110
75
4" IPS
2 1/2" IPS
143
98
184
110
63
4" IPS
2" IPS
143
84
180
160
110
6" IPS
4" IPS
207
143
330
160
90
6" IPS
3" IPS
207
119
323
160
63
6" IPS
2" IPS
207
84
320
225
160
8" IPS
6" IPS
285
157
200
315
280
12" IPS
10" IPS
387
207
245

※PE 80, PE100, SDR 11
※ASTM size is the nominal outer diameter corresponding to ISO
※For ASTM size, please contact us.
※The Above size can be changed in order to improve product quality.
※For standards other than the above, please contact us.

Polyethylene
& advantages

Stability and Hygiene

As the PE material is widely used globally because of its proven stability and hygiene. Especially, PE water pipe has the optimum condition for drinking water. 

Joint characteristics 

PE pipes are easy to be arranged quickly and perfectly by using various fusion method according to field condition. 

Flexibility

By superior flexibility and resilience, it has less constraint by land conditions, easy to construct, relatively safe in internal or external factors, and restorable by itself. 

Easy installation 

A variety of fittings for PE PIPE can be easy to weld even unskilled workers by using simple welding equipment. 

Corrosion Resistance 

PE pipes do not cause erosion or corrosion. 

Light weight 

PE pipe that is lighter than iron pipe is easy to carry and quickly to construction. 

Cold-weather resistance

Since the Polyethylene has excellent elasticity between molecules, it can maintain inherent durability even with a temperature change of 40ºC 


Chemical resistance 

Polyethylene is not corrosive to additives, alkalis, salts, etc. and does not multiply seaweed or bacteria, so it is safe from various corrosive substance. 

Flow characteristics 

The smooth inner surface of PE water pipes allows more amounts of fluid transportation than other material’s pipes with the same diameter. 

Abrasion Resistance 

PE pipe is also suitable for transfer piping in slurry and dredging pipeline in the mine by the superior abrasion resistance of PE. 

Impact Resistance 

PE pipes has superior resistance from external shocks in order to prevent water leak by damage on a pipe from an earthquake or land subsidence. 

Economical Efficiency 

Polyethylene’s material cost is more cheaper and it has lower maintenance cost than other pipe material.