• 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)

Coupler 

Unit : mm

ISO[d1] 
ASTM[Inch]
D(mm) 
L (mm)
ISO[mm] 
ASTM[Inch]
D (mm)
L (mm)
20
1/2" IPS
40
92
250
"-
308
260
25
3/4" IPS
40
92
280
10" IPS
347
265
32
1" CTS / 1" IPS
47
96
315
12" IPS
391
280
40
1 1/4" IPS
54
100
355
14" IPS
430
330
50
1 1/2" IPS
66
105
400
16" IPS
480
360
63
2" IPS
84
120
450
18" IPS
543
390
75
2 1/2" IPS
98
135
500
20" IPS
610
430
90
3" IPS
119
140
560
22" IPS
685
470
110
4" IPS
143
160
630
24" IPS
765
470
125
"-
157
180
710
28" IPS
873
460
140
5" IPS
172
190
800
32" IPS
980
510
160
6" IPS
207
200
900
36" IPS
1097
540
200
"-
247
230
1000
42" IPS
1215
590
225
8" IPS
285
230
 
 
 
 

※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.

EF Combinant Coupler

Unit : mm

Previouse KS d2 
ISO d1(mm)
D(mm)
L(mm)
30
40
54
100
40
50
66
105
50
63
84
120
75
90
119
140
100
110
143
160
150
160
207
200
200
225
285
230
250
280
350
265
300
315
390
280

※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.