Sejong Flex has grown as the company having the highest competitiveness and specializing in manufacturing PVC hoses on the basis of the technology and experience having been accumulated for a long time. The skilled engineers produce Sejong Flex’s PVC hoses. The quality of all products is 100% guaranteed. Customer satisfaction is the first priority. The quality PVC hoses are supplied at reasonable prices at the right time.

1. SUPERHOSE | SINCE 1982
PVC HOSE
MANUFACTURER
OF THE WORLD’S
HIGHEST QUALITY
Exporting to over 50 countires

2. sejongflex
with PVC Hoses
The Convenient
and
Happy World
Made

3. Sejong Flex, started as Sejong Chemical Company which was founded in 1982, we have evolved and
now specialized in manufacturing only the highest quality of polyvinyl chloride (PVC) products, and
is quickly becoming the standard in many industries.
Our cutting edge technology and experience will provide high performance, reliability and customer
satisfaction. Quality of service (QOS) is important to achieve complete customer satisfaction. Here
at Sejong Flex we have made improvements, and created innovative technology to maximize reliabil-
ity, longer performance, and lower manufacturing cost.
Sejong Flex is committed to our domestic and international partners, our principles and attention to
detail is important to achieve complete customer satisfaction.
Thank you.
Information Company
CEO
e-mail
Website
Head Office
Factory 1
Factory 2
Factory 3
SEJONG FLEX CO., LTD
Seok, Kyuseok
info@sejongflex.com
www.sejongflex.com
13-25, Gimhae-daero 2662beon-gil, Gimhae-si, Gyeongsangnam-do, South Korea
13-29, Gimhae-daero 2662beon-gil, Gimhae-si, Gyeongsangnam-do, South Korea
13-25, Gimhae-daero 2662beon-gil, Gimhae-si, Gyeongsangnam-do, South Korea
13-30, Gimhae-daero 2694beon-gil, Gimhae-si, Gyeongsangnam-do, South Korea
Year of Establishment
TEL
FAX
1982
+82-55-321-5803
+82-55-334-9619
Greeting
CEO
SEJONG FLEX CO., LTD.

4. Philosophy
Business
Since 1982 Exporting to over
50 countries
It achieved the export to more than
50 countries in the world with the
perfect PVC hose production through
the incessant R&D and the education
of production staffs and is steadily
supplying the products on the basis
of the satisfaction and trust from the
customers from all over the world
High Quality
and Competitive Price
Customer satisfaction and trust are
the first priority. The mutual growth
with you is realized by supplying the
quality PVC hoses at reasonable prices
at the right time through the
investment in the state-of-the-art
facilities and the optimized control
of production.
The Shared Growth
Sejong Flex aims to achieve win-win its
customers by providing the quality
product at a competitive price
High Pressure
Spray Hose
Staff Satisfaction
The company aims to provide training
opportunities and family-like work
environment to all staffs, with the goal
to create the best work place for all
employees.
Social Development
The company creates stable job
positions and aims to contribute to the
society in various areas such as
environment production and welfare.
Sejong Flex has grown as the company
specializing in manufacturing
PVC hoses on the basis of the
technology and experience having
been accumulated for a long time
since it was founded as
Sejong Chemical in 1982.
High Pressure
Air Hose
Twin Hose Spring Hose Layflat Hose Sprinkler Hose
Grit Hose Heavy Duty Clear
Suction (Flexible) Hose
Heavy Duty
Suction (Flexible) Hose
Standard Duty Clear
Suction (Flexible) Hose
Standard Duty
Suction (Flexible) Hose
Duct Hose Clear Braided Hose Garden Hose Drain Hose Clear (Transparent)
Hose
Gas Hose

5. Argentina
Australia
Arab Emirates
Brazil
Canada
Chile
China
Colombia
Ecuador
Egypt
Ethiopia
France
Germany
Greece
India
Indonesia
Iran
Italy
Jamaica
Japan
Kenya
Lebanon
Malaysia
Mexico
Myanmar
New Zealand
Pakistan
Philippines
Russia
Saudi Arabia
South Africa
Singapore
Spain
Syria
Switzerland
Taiwan
Thailand
Turkey
U.S.A
United Kingdom
Vietnam
Venezuela
Global Network

6. Best Technology,
Best Quality,
and Competitive Price
LONG LIFE EDITION
LONG LIFE EDITION by SEJONGFLEX
They are the R&D results of Sejong Flex
maximizing the lifetimes of all products.
We manufacture only the perfect polyvinyl chloride
(PVC) hose products through steady R&D and
training of our production workers
As the result of being focused on the research and development to become the best in
the hose industry after the establishment in 1982, Sejong Flex developed the LONG
LIFE EDITION maximizing the lifetime of all Sejong Flex products through the optimal
mixing of raw materials and special treatment.
Products
Sejong Flex has concentrated on one area of the polyvinyl chloride (PVC) hose product resulting in the development
of its specialty.
The steady research and development are being done to make the formula, Sejong Flex = PVC hose, valid.
LONG LIFE EDITION, Sejong’s new brand, symbolizes the best result made with Sejong Flex’s tenacity.
The symbol of LONG LIFE EDITION, the new label of Sejong Flex,
symbolizes the infinity of Mobius,
the flexibility of the hose,
and the initial S of Sejong Flex
and represents the endless Sejong Flex’s research on the best product!
Moreover, it represents Sejong Flex’s technology maximizing the lifetime of all products!
LONG LIFE EDITION

7. High Pressure Spray Hose
●
●
●
●
●
Purpose
For power spray
(For spraying agricultural chemicals for
farm villages, orchards, vinyl green-
houses and so on)
For high pressure water supply
For excavation
(mines, roads and so on)
For cleaning (ships, vehicles and so on)
The other special purposes
●
●
●
●
●
Features
It resists high pressure very much.
The good elasticity and flexibility
obtained from special mixing enables
easy handling.
It is lighter than a rubber hose by 30%
so that it is user-friendly.
It has the strength in wear resistance,
chemical resistance, and weather resi-
stance.
It is the long life edition product so that
it has a long lifetime.
Structure
Especially, both the high tensile strength
of the very high tenacity yarn manufac-
tured with the special twisted-yarn
facility and the strong adhesive power of
the vinyl layer and the very high tenacity
yarn enables the high strength in
pressure resistance. Moreover, the
introduction of the state-of-the-art
adhesion method makes the structure
unchanged in spite of high pressure and
several conditions.
※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
mm
7.5
8.5
10.0
13.0
16.0
19.0
25.0
I.D
mm
7.5±0.6
8.5±0.6
10.0±0.7
13.0±0.7
16.0±0.8
19.0±0.8
25.0±1.0
O.D
mm
13.5±0.5
14.5±0.5
16.5±0.5
20.6±0.5
25.0±1.0
30.0±1.0
36.0±1.0
Working
kgf/cm2
60
50
50
50
30
30
30
Burst
kgf/cm2
170
150
150
150
100
100
100
Packing unit
Meters
50/100/150/200
50/100/150/200
50/100/150/200
50/100/150
50/100
50/100
50
Specifications
Outside coating(PVC)
Highly dense yarn
Inner hose(PVC)

8. Outside coating(PVC)
Highly dense yarn
Inner hose(PVC)
High Pressure Air Hose
●
●
●
●
Purpose
For air used for various machines
For air used in various civil, construction,
and paint works
For excavation
(mines, roads and so on)
The other special purposes
●
●
●
●
●
Features
It resists high pressure very much.
The good elasticity and flexibility
obtained from special mixing enables
easy handling.
It is lighter than a rubber hose by 30%
so that it is user-friendly.
It has the strength in wear resistance
and weather resistance.
It is the long life edition product so that
it has a long lifetime.
Structure
Especially, both the high tensile strength
of the very high tenacity yarn manufac-
tured with the special twisted-yarn
facility and the strong adhesive power of
the vinyl layer and the very high tenacity
yarn enables the high strength in
pressure resistance. Moreover, the
introduction of the state-of-the-art
adhesion method makes the structure
unchanged in spite of high pressure and
several conditions.
※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
mm
6.5
8.0
9.5
13.0
16.0
19.0
25.0
I.D
mm
6.5±0.5
8.0±0.6
9.5±0.7
13.0±0.7
16.0±0.8
19.0±1.0
25.0±1.0
O.D
mm
12.5±0.5
15.0±0.6
16.0±0.7
20.6±0.7
25.0±1.0
30.0±1.0
36.0±1.0
Working
kgf/cm2
60
50
50
50
40
40
40
Burst
kgf/cm2
170
150
150
150
100
100
100
Packing unit
Meters
50/100/150/200
50/100/150/200
50/100/150/200
50/100/150
50/100
50/100
50
Specifications

9. Outside coating(PVC)
Highly dense yarn
Inner hose(PVC)
Twin Hose
●
●
Purpose
For simultaneous supply to two lines
For technical, mechanical, and indus-
trial purposes
●
●
●
●
Features
Two lines are manufactured all in one
so that they are not separated during
use.
The good elasticity and flexibility
obtained from special mixing enables
easy handling.
It has the strength in wear resistance,
chemical resistance, and weather
resistance.
It is the long life edition product so that
it has a long lifetime.
Structure
The combination of the two types of
hoses with the leading-edge weaving
technology and the state-of-the-art
adhesion method makes them very
pressure-resistant and very user-friend-
ly.
※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
mm
6
8
5
8
Division
Premium Twin
Standard Twin
I.D
mm
6.0±0.5
8.0±0.6
5.0±0.5
8.0±0.5
O.D
mm
11.5±0.5
15.0±0.6
11.0±0.5
14.0±0.5
Packing unit
Meters
50/100
50/100
50/100
50/100
Specifications
Working
kgf/cm2
50
40
15
30
Burst
kgf/cm2
150
150
50
90
Outside coating(PVC)
Highly dense yarn
Inner hose(PVC)

10. ※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
mm
9
12
15
19
25
32
38
50
63
75
Working
8(0.8)
7(0.7)
6(0.6)
5(0.5)
5(0.5)
4(0.4)
4(0.4)
3(0.3)
3(0.3)
3(0.3)
Burst
50(5.0)
45(4.5)
35(3.5)
30(3.0)
25(2.5)
20(2.0)
19(1.9)
13(1.3)
9(0.9)
9(0.9)
Packing unit
Meters
100
100
100
50
50
40
40
40
20
20
O.D
mm
15.0±0.6
18.0±0.7
22.0±0.7
25.0±1.0
32.0±1.0
39.5±1.0
47.0±1.5
60.0±1.5
78.0±1.5
89.5±1.5
I.D
mm
9.0±0.6
12.0±0.7
15.0±0.7
19.0±1.0
26.0±1.0
32.0±1.0
38.0±1.5
50.0±1.5
63.0±1.5
75.0±1.5
Pressure (kgf/cm²)(Mpa) at 10℃
Specifications
Spring Hose
Purpose Features Structure
Inside the special polyvinyl chloride (PVC)
transparent hose, super-hard steel wire
is injected, ensuring the hose can greatly
resist external damage and high-pres-
sure. The transparent body of the hose
allows for easy visual verification of inner
material of hose.
Pitch
●
●
●
●
●
●
●
For transporting various powdery
particles and liquids
For lubrication lines of machine tools
Mothproof
It is excellent anti-abrasion property
so that it is useful during winter
season.
It is durable against the external
impact, chemical and climate.
It is transparent so that it is easy to
check the contents.
It is the long life edition product so that
it has a long lifetime.

11. ※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
Inch
1
1 1/4
1 1/2
2
2 1/2
3
4
5
6
8
mm
25
32
38
50
65
75
100
125
150
200
Working
7.0(0.7)
6.0(0.6)
5.0(0.5)
3.0(0.3)
3.0(0.3)
3.0(0.3)
2.0(0.2)
2.0(0.2)
2.0(0.2)
3.0(0.3)
Burst
21.0(2.1)
18.0(1.8)
15.0(1.5)
10.0(1.0)
9.0(0.9)
8.0(0.8)
6.0(0.6)
6.0(0.6)
7.0(0.7)
9.0(0.9)
Packing unit
Meters
50, 100
50, 100
50, 100
50, 100
50, 100
50, 100
50, 100
50, 100
50, 100
50, 100
O.D
mm
29.1±0.5
36.1±1.0
42.6±1.0
54.6±1.0
67.6±1.0
79.6±1.0
106±1.5
131±1.5
157±1.5
211±1.5
T.H
mm
1.3
1.3
1.3
1.3
1.3
1.3
1.5
1.5
2.0
2.0
I.D
mm
26.5±0.5
33.5±1.0
40.0±1.0
52.0±1.0
65.0±1.0
77.0±1.0
103±1.5
128±1.5
153.0±1.5
207.0±1.5
Pressure (kgf/cm²)(Mpa) at 20℃
Specifications
Layflat Hose
Purpose Features Structure
Inside the special polyvinyl chloride (PVC)
hose, a high strength polyester fiber is
injected and fused together ensuring the
inner portion will not detach from the
outer coating of the hose. Due to this
manufacturing technique the hose will
endure high internal and external
pressure.
●
●
●
●
●
●
●
For civil engineering and building
works, agriculture, ships, and fishery
For general purpose Low pressure
sprinkling and High pressure water
supply and drainage
For vinyl greenhouses and stables
It is easy to install by its rich flexibility
It is made by high-strength compound
to resist the pressure and the external
impact very strongly.
It is opaque so that it blocks the
propagation of mosses or microorgan-
isms.
It is the long life edition product so that
it has a long lifetime.

12. ※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
Inch
1
1 1/4
1 1/2
2
mm
25
32
40
50
Working
7.0(0.7)
7.0(0.7)
7.0(0.7)
5.0(0.5)
Burst
20.0(2.0)
20.0(2.0)
20.0(2.0)
20.0(2.0)
Packing unit
Meters
10, 12, 25, 50, 100
10, 12, 25, 50, 100
10, 12, 25, 50
10, 12, 25, 50
T.H
mm
1.3±0.2
1.3±0.2
1.5±0.2
1.5±0.2
I.D
mm
27±1.0
33.5±1.0
41.5±2.0
53±2.0
Pressure (kgf/cm²)(Mpa) at 20℃
Specifications
Sprinkler Hose
Purpose Features Structure
Inside the special polyvinyl chloride (PVC)
hose, a high strength polyester fiber is
injected and fused together ensuring the
inner portion will not detach from the
outer coating of the hose. Due to this
manufacturing technique the hose will
endure high internal and external
pressure.
●
●
●
●
●
●
For general purpose Low pressure
sprinkling and High pressure water
supply and drainage
For construction sites and Industrial
purpose.
It is easy to install by its rich flexibility
It is made by high-strength compound
to resist the pressure and the external
impact very strongly.
It is opaque so that it blocks the propa-
gation of mosses or microorganisms.
It is the long life edition product so that
it has a long lifetime.

13. ※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
mm
38
50
65
75
100
125
150
200
Inch
1 1/2
2
2 1/2
3
4
5
6
8
Model
Working
1.5(0.15)
1.2(0.12)
1.2(0.12)
1.2(0.12)
1.2(0.12)
1.2(0.12)
1.2(0.12)
1.2(0.12)
Radius
mm
130
165
195
210
330
405
675
915
Burst
8(0.8)
6(0.6)
6(0.6)
5(0.5)
5(0.5)
5(0.5)
5(0.5)
5(0.5)
Packing unit
Meters
30
30
30
30
30
20
20
20
Pitch
mm
9.0
10.0
14.0
15.0
17.0
22.0
22.0
22.0
O.D
mm
49.5±1.5
62.0±1.5
77.0±1.5
90.0±1.5
120.0±2.0
149.0±2.0
176.0±2.0
229.2±2.0
I.D
mm
38.0±0.5
50.0±1.0
65.0±1.0
75.0±1.0
100.0±1.0
125.0±1.0
150.0±1.5
200.0±1.5
Pressure (kgf/cm²)(Mpa) at 10℃
Specifications
Grit Hose
Purpose Features Structure
The construction of the grit hose consists
of a planar inside and a spiral outside that
greatly reduces the resistance during the
movement or transport of an object and
ensures excellent flexibility. The core of
the hose is made of strong rigid polyvinyl
chloride (PVC) resin ensuring it has a
strong resists to both internal and exter-
nal pressure.
Pitch
●
●
●
●
●
●
●
For dockyard and ship task
For Delivery of cement, sand, grit,
gravel, iron, ore
For delivery of grain, solid, powder,
dust
It is made by special compound to resist
cold & hot weather.
It is excellent anti-abrasion property so
that it is useful during winter season.
The spiral external surface enables
good flexibility.
It is the long life edition product so that
it has a long lifetime.

14. ※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
mm
25
32
38
50
65
75
100
125
150
200
Inch
1
1 1/4
1 1/2
2
2 1/2
3
4
5
6
8
Model
Working
7.0
7.0
6.0
6.0
5.5
5.0
4.5
4.5
4.0
3.5
Radius
mm
70
90
120
150
200
230
350
500
700
1200
Burst
18.0
18.0
17.0
17.0
16.5
16.0
15.0
14.0
12.0
10.0
Packing unit
Meters
50
50
50
50
50
50
30
30
20
10
Pitch
mm
5.5±0.3
6.5±0.3
7.5±0.4
8.5±0.4
9.5±0.4
9.5±0.4
11.0±0.4
11.0±0.4
13.5±0.4
17.7±0.4
O.D
mm
31.5±1.0
38.5±1.0
45.3±1.0
58.5±1.5
74.5±1.5
85.5±1.5
114.3±2.0
140.1±2.0
168.4±2.0
223.4±2.0
I.D
mm
25.0±0.5
32.0±0.5
38.0±0.5
50.0±1.0
65.0±1.0
75.0±1.0
100.0±1.5
125.0±1.5
150.0±1.5
200.0±1.5
Pressure (kgf/cm²) at 10℃
Specifications
Heavy Duty Clear Suction (Flexible) Hose
●
●
●
●
●
Purpose
●
●
●
●
●
Features Structure
For various civil, building,
and construction works
For fishing industries and ships
For transporting various powdery
particles and liquids
For transporting industrial oil
For transporting various oils
and chemicals
It is transparent so that it is easy to
check the contents.
It is very strong against the pressure
and external impact.
It has the strength in wear resistance,
chemical resistance, and weather resi-
stance.
The planar inside greatly reduces resi-
stance during the movement or trans-
port of an object.
It is the long life edition product so that
it has a long lifetime.
The planar inside and the spiral outside
greatly reduce the resistance during the
movement or transport of an object and
ensure good flexibility. The hose core is
made of strong rigid polyvinyl resin so
that it is manufactured to strongly resist
the internal and external pressure.
Hard PVC
Soft PVC Pitch

15. Heavy Duty Suction (Flexible) Hose
●
●
●
●
●
Purpose
For various civil, building,
and construction works
For fishing industries and ships
For transporting various powdery
particles and liquids
For transporting industrial oil
For transporting various oils
and chemicals
●
●
●
●
Features
It resists the pressure and the external
impact very strongly.
It has the strength in wear resistance,
chemical resistance, and weather
resistance.
The planar characteristics of both the
inside and the outside greatly reduce
the resistance during the movement or
transport of an object.
It is the long life edition product so that
it has a long lifetime.
Structure
The structure of the hose for high press-
ure has the planar characteristics inside
and outside. The hose core is made of the
strong rigid polyvinyl resin. It is a kind of
spiral coils so that it is manufactured to
enable great flexibility and strong resist-
ance to internal and external pressure.
※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
mm
25
32
38
50
65
75
100
125
150
200
Inch
1
1 1/4
1 1/2
2
2 1/2
3
4
5
6
8
Model
Working
7.0
7.0
6.0
6.0
5.5
5.0
4.5
4.5
4.0
3.5
Radius
mm
70
90
120
150
200
230
350
500
700
1200
Burst
18.0
18.0
17.0
17.0
16.5
16.0
15.0
14.0
12.0
10.0
Packing unit
Meters
50
50
50
50
50
50
30
30
20
10
Pitch
mm
5.5±0.3
6.5±0.3
7.5±0.4
8.5±0.4
9.5±0.4
9.5±0.4
11.0±0.4
11.0±0.4
13.5±0.4
17.7±0.4
O.D
mm
31.5±1.0
38.5±1.0
45.3±1.0
58.5±1.5
74.5±1.5
85.5±1.5
114.3±2.0
140.1±2.0
168.4±2.0
223.4±2.0
I.D
mm
25.0±0.5
32.0±0.5
38.0±0.5
50.0±1.0
65.0±1.0
75.0±1.0
100.0±1.5
125.0±1.5
150.0±1.5
200.0±1.5
Pressure (kgf/cm²) at 10℃
Specifications
Hard PVC
Soft PVC Pitch

16. ※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
mm
19
25
32
38
50
65
75
100
125
150
200
250
300
Inch
4/3
1
1 1/4
1 1/2
2
2 1/2
3
4
5
6
8
10
12
Model
Working
4.0
4.0
4.0
3.5
3.5
2.5
2.5
2.5
2.5
2.0
2.0
2.0
2.0
Radius
mm
40
45
50
55
110
180
220
240
400
450
700
950
1000
Burst
15
15
15
13
13
12
12
10
10
8
8
6
5
Packing unit
Meters
30
50
50
50
50
50
50
30
30
20
10
10
10
Pitch
mm
9.5±0.4
8.0±0.4
9.0±0.4
9.0±0.4
10.0±0.4
14.5±0.5
14.5±0.5
15.5±0.5
18.5±0.5
21.0±0.5
24.5±0.5
24.5±0.5
30.0±0.5
O.D
mm
24.0±1.0
30.4±1.0
37.6±1.0
44.8±1.0
59.1±1.5
70.8±1.5
87.5±1.5
116.6±1.5
142.4±2.0
167.2±2.0
223.8±2.0
276.7±1.0
330.1±1.0
I.D
mm
19.0±0.5
25.0±0.5
32.0±0.5
38.0±0.5
50.0±1.0
65.0±1.0
75.0±1.0
100.0±1.5
125.0±1.5
150.0±1.5
200.0±1.5
250.0±2.0
300.0±2.0
Pressure (kgf/cm²) at 10℃
Specifications
Standard Duty Clear Suction (Flexible) Hose
●
●
●
●
●
Purpose
For civil and building works, agricul-
ture, ships, and fishery
For regular water supply and drainage
For transporting various powdery
particles and liquids
For protecting electric wires over and
under the ground
For other piping cases requiring
flexibility
●
●
●
●
●
Features
It is transparent so that it is easy to
check the contents.
It is very light and very flexible.
It has the strength in wear resistance,
chemical resistance, and weather resi-
stance.
The planar inside greatly reduces the
resistance during the movement or
transport of an object.
It is the long life edition product so that
it has a long lifetime.
Structure
The planar inside and the spiral outside
greatly reduce the resistance during the
movement or transport of an object and
ensure good flexibility. The hose core is
made of strong rigid polyvinyl resin so
that it is manufactured to strongly resist
the internal and external pressure.
Hard PVC
Soft PVC Pitch

17. ※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
mm
19
25
32
38
50
65
75
100
125
150
200
250
300
Inch
4/3
1
1 1/4
1 1/2
2
2 1/2
3
4
5
6
8
10
12
Model
Working
4.0
4.0
4.0
3.5
3.5
2.5
2.5
2.5
2.5
2.0
2.0
2.0
2.0
Radius
mm
40
45
50
55
110
180
220
240
400
450
700
950
1000
Burst
15
15
15
13
13
12
12
10
10
8
8
6
5
Packing unit
Meters
30
50
50
50
50
50
50
30
30
20
10
10
10
Pitch
mm
9.5±0.4
8.0±0.4
9.0±0.4
9.0±0.4
10.0±0.4
14.5±0.5
14.5±0.5
15.5±0.5
18.5±0.5
21.0±0.5
24.5±0.5
24.5±0.5
30.0±0.5
O.D
mm
24.0±1.0
30.4±1.0
37.6±1.0
44.8±1.0
59.1±1.5
70.8±1.5
87.5±1.5
116.6±1.5
142.4±2.0
167.2±2.0
223.8±2.0
276.7±1.0
330.1±1.0
I.D
mm
19.0±0.5
25.0±0.5
32.0±0.5
38.0±0.5
50.0±1.0
65.0±1.0
75.0±1.0
100.0±1.5
125.0±1.5
150.0±1.5
200.0±1.5
250.0±2.0
300.0±2.0
Pressure (kgf/cm²) at 10℃
Specifications
Standard Duty Suction (Flexible) Hose
●
●
●
●
●
Purpose
For civil and building works,
agriculture, ships, and fishery
For regular water supply and drainage
For transporting various powdery
particles and liquids
For protecting electric wires over and
under the ground
For other piping case requiring
flexibility
●
●
●
●
Features
It is very light and very flexible.
It has the strength in wear resistance,
chemical resistance, and weather resi-
stance.
The planar inside greatly reduces the
resistance during the movement or
transport of an object.
It is the long life edition product so that
it has a long lifetime.
Structure
The planar inside and the spiral outside
greatly reduce the resistance during the
movement or transport of an object and
ensure good flexibility. The hose core is
made of strong rigid polyvinyl resin so
that it is manufactured to strongly resist
the internal and external pressure.
Hard PVC
Soft PVC Pitch

18. Duct Hose
●
●
●
●
●
●
●
Purpose
For indoor cooling and heating devices
and indoor air supply and exhaust
For dust collectors in various civil work
sites
For air supply and exhaust inside the
underground tunnels of mines and coal
mines
For dust collecting facility of a spinning
machine and for transporting powder
and liquid
For dust collecting facilities of the metal
grinding and processing machin- es
Air cleaning hose for a vehicle or heavy
equipment
For discharging welding gas when ma-
nufacturing a ship
●
●
●
●
●
Features
It is very light and very flexible so that it
enables work convenience.
It endures chemicals and harmful gas.
It enables the convenience of piping
work.
The planar inside reduces resistance.
It is the long life edition product so that it
has a long lifetime.
Structure
The outside resists the external pressure
well by using the strong spiral rigid core.
The planar inside reduces resistance.
※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
mm
32
38
50
65
75
100
125
150
200
250
300
Inch
1 1/4
1 1/2
2
2 1/2
3
4
5
6
8
10
12
Model Pitch
mm
8.0±0.3
9.0±0.3
10.0±0.4
14.5±0.4
14.5±0.4
15.5±0.4
18.5±0.4
21.0±0.4
24.5±0.4
24.0±0.4
26.0±1.5
O.D
mm
37.7±1.0
44.0±1.0
58.0±1.5
72.5±1.5
84.6±1.5
112.0±2.0
136.0±2.0
163.0±2.0
215.0±2.0
264.0±2.5
317.0±2.5
I.D
mm
32±0.5
38±0.5
50±1.0
65±1.0
75±1.0
100±1.5
125±1.5
150±1.5
200±1.5
250±2.0
300±2.0
Radius
mm
32
38
50
65
75
100
125
150
240
320
350
Packing unit
Meters
30
30
50
50
50
30
30
20
20
10
10
Specifications
Hard PVC
Soft PVC Pitch

19. Clear Braided Hose
●
●
●
●
●
Purpose
For supplying water to factory and
mechanical facilities and draining
water from them
For laying pipes for industrial machines
For transporting various kinds of pow-
dery particles and liquids
For transporting chemicals
For various kinds of showers and fire
extinguishers and other special purpo-
ses
●
●
●
●
Features
It is transparent so that it is easy to
check the contents.
It is light and very flexible.
It has the strength in chemical resistan-
ce.
It is the long life edition product so that
it has a long lifetime.
Structure
The connection is perfect since the inside
and outside skins are manufactured with
the same material quality by using the
special method. It is very pressure-resis-
tant due to the use of polyester yarn.
※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
mm
6
8
9
10
12
13
16
19
25
32
38
50
I.D
mm
6±0.5
8±0.5
9±0.5
10±0.5
12±0.7
13±0.7
16±1.0
19±1.0
25±1.5
32±1.5
38±1.5
50±1.5
Working
kgf/cm2
10
10
8
8
8
8
8
6
6
5
3
2
Burst
kgf/cm2
50
45
45
40
35
30
25
25
20
15
13
10
Packing unit
Meters
90
90
90
90
90
90
45
45
45
45
45
45
Specifications
Outside coating(PVC)
Reinforcement thread
(Polyester in length)
Inner hose(PVC)

20. Garden Hose
●
●
●
●
●
Purpose
For household use
For gardening
For vinyl greenhouses
For stables
For supplying water and fluid-liquid
●
●
●
●
●
Features
It is very light and very flexible.
It has the strength in wear resistance,
chemical resistance, and weather resi-
stance.
It has the strong force of restoration.
It is the long life edition product so that
it has a long lifetime.
The black garden hose is opaque so
that it blocks the propagation of moss-
es or microorganisms.
Structure
Both the inside and the outside are made
of polyvinyl resin so that it is very flexible.
It is woven with the super-strong polyes-
ter yarn so that it resists water pressure.
※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
mm
13
16
19
25
I.D
mm
13.0±0.7
16.0±1.0
19.0±1.0
25.0±1.0
O.D
mm
18.0±0.7
21.5±1.0
24.5±1.0
32.0±1.0
Packing unit
Meters
90
40
40
40
Specifications
Outside coating(PVC)
Reinforcement thread
(Polyester in length)
Inner hose(PVC)

21. Drain Hose
●
●
●
Purpose
For washers
For sinks and the light industry
The water supply and drainage hose for
homes and industries
●
●
●
Features
The spiral external surface enables
good flexibility.
The planar inside enables the very
good water passing efficiency and
doesn’t generate stoppage and scale.
It is the long life edition product so that
it has a long lifetime.
Structure
The specially developed spiral structure
and the optimized raw material mixing
ratio enable the easy bending in various
types. The planar inside enables the very
good water passing efficiency and
doesn’t generate stoppage and scale.
※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
mm
30.5
38
I.D
mm
30.5±0.5
38.0±0.5
Packing unit
Meters
20
20
Specifications
Hard PVC
Soft PVC Pitch

22. Clear (Transparent) Hose
●
●
Purpose
Electronic products and vehicle parts
For oil presses
●
●
●
●
Features
It is strong against the chemicals such
as acid, alkali and so on.
It is transparent so that the liquid flow
can be identified.
It can be manufactured with various
colors and can be produced without the
length limitation.
It is the long life edition product so that
it has a long lifetime.
Structure
It maintains the raw material mixing ratio
developed for high transparency and the
highest transparency obtained though
the special treatment and has a very long
lifetime.
※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
mm
3
4
5
6
7
8
9
10
11
12
16
19
25
32
38
50
I.D
mm
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
16.0
19.0
25.0
32.0
38.0
50.0
I.D Tolerance
mm
±0.5
±0.7
±0.9
±1.2
Specifications

23. ※ The product excluding the one with the specification can be produced on the order basis.
※ Features and specifications are subject to change without prior notification.
Model
mm
Standard Type 9.5
Clear Type 9.5
Pressure (kgf/cm²)(Kpa)
Working
2.0(196) Under
2.0(196) Under
Packing unit
Meters
30, 40, 45, 50
30, 40, 45, 50
O.D
mm
under 22
under 22
I.D
mm
9.5±0.7
9.5±0.7
Specifications
Gas Hose
Purpose Features Structure
State-of-the-art super-hard steel
weaving and adhesion technologies are
incorporated in the manufacturing of this
gas hose. These technologies make the
structure of the hose pressure-resistant
even under severe conditions.
●
●
●
●
●
●
For gas supply (L•P, L•N, city gas
and butane gas)
For various low pressure gas supply
It is easy to install by its rich flexibility
It is not easily cut due to being
reinforced with steel wires
It is durable against the external
impact, chemical and climate
It is the long life edition product so that
it has a long lifetime.

24. SUPERHOSE | SINCE 1982 13-25, Gimhae-daero 2662beon-gil, Gimhae-si, Gyeongsangnam-do, South Korea
TEL +82-55-321-5803 FAX +82-55-334-9619
info@sejongflex.com www.sejongflex.com