What is the Spring constant?

It is a numerical representation of how much load required for expanding and contracting the hose. The smaller the spring constant, the softer it becomes.

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Flexible Hoses（Connecting Part Type：Pipe End）

Flexible hoses are hose-related parts that are resistant to bending, twisting, vibration, etc. Flexible hoses are suitable for adjusting piping errors and absorbing vibrations. The material of the hose is stainless steel, copper, fluoropolymer, etc. Stainless steel and copper are hard materials, but the structure is devised to be corrugated, making them flexible hoses like rubber tubes. Using a product that uses union fittings at both ends of the hose together with a flexible structure improves workability. In addition to water and air, there are products that can use gases, oils, solvents, etc., and can be used for a wide range of applications. The stainless steel hose with a non-weld integrally molded flange is effective not only for anti-vibration of various pumps but also for countermeasures against earthquakes and land subsidence.

Configure

Specification/Dimensions

Applicable Fluid
- vapor
- Water
- Gas
- Oil
- Air
- Solvent
- Chemical
Clear

Hose Material
- Stainless Steel (SUS304)
- Stainless Steel (SUS316)
- Fluororesin
Clear

Max. Operating Pressure(MPa)
0.15

0.2

0.3

1

1.62

1.75

2.0

2.5

2.9

3

3.1

3.3

3.4

4.3

4.4

4.5

6.4

17.0

20.5
Clear

Inner Dia. d(Ø)
3.5

4.0

4.8

5.0

5.5

6

6.3

6.4

7.0

7.2

7.9

8

9.0

9.5

10

10.5

11.0

12

12.5

12.7

13

13.2

14

15

15.8

16

17

18

18.8

19

19.2

19.5

19.7

20

21.5

21.6

22

23

23.7

24.1

25

25.2

25.3

25.4

25.5

26.5

26.8

28

29.5

31

32.0

32.5

32.6

33

33.5

35

36

38

38.6

39

39.1

40.0

40.5

41.5

42

44

44.8

46

50

50.5

51.5

52.6

53.5

54

55.4

56.4

61

65

66

72

75

77

78

78.5

89.5

96

101

112

123.8

148.8

153

194.6

224.6

294.4
Drawing

Clear

Type
- Flexible Hoses
- Fittings for Flexible Hose
- Related Components
Clear

Connecting Part Type
- Flange
- Swage Fittings
- Pipe End
Clear

Braid
- Not Provided
- Provided
Images

Clear

Swaged Fittings L Type
- Metal Fittings A
- Metal Fittings B
- Metal Fittings C
- Unions
- Metal Fittings D
Images

Clear

Swage Fitting R Type
- Metal Fittings A
- Metal Fittings B
- Metal Fittings C
- Unions
- Metal Fittings D
Images

Clear

Minimum Bending Radius(mm)
20

25

30

35

40

45

50

51

60

65

70

76

80

90

100

102

110

120

125

135

140

170

180

190

200

220

250

280

300

350

380

400

440

450

500

600

620

800

860

900

1100

1200

1400

1500

2000

2500

3500

4000

5000
Clear

Connecting Part Material
- Stainless Steel
- Steel
- Cast Iron
- PVC
- Brass
Clear

Related components details
- Gasket
- Nut
- Gasket Nuts Set
- Nipple
Clear

Brand	(0) (0) ASOH (0) ESCO (0) MIYAKO (0) NANGOKU FLEXIBLE HOSE INDUSTRY (2) ONDASEISAKUSYO (0) TECHNOFLEX (0) TOFLE (0) ZENSHIN (0)
CAD	2D 3D
Days to Ship	All Same day 2 Day(s) or Less 3 Day(s) or Less 5 Day(s) or Less 6 Day(s) or Less Others

2 items

Sort By

: 30; 60; 90

Compare

NK-1400 Pipe‑End Type Flexible Hose

NANGOKU FLEXIBLE HOSE INDUSTRY

Flexible hoses with both end as pipe ends.
[Features]
· Butt welding and on-spot joint welding. Refrigerant piping for air conditioners.
· Tubes can be selected depending on the application.
· STD / standard tube, SA / flexible tube and CLT / super flexible tube.
[Applications]
· Can be used for all purposes in general piping, such as for pipe error adjustment and displacement absorption.

From: ฿ 987.30
Days to Ship: 6 Day(s)

6 Day(s)

Compare

NK-2300PT Pipe‑End Type Vacuum Flexible Hose

NANGOKU FLEXIBLE HOSE INDUSTRY

Flexible hose for vacuum piping with pipe ends at both the ends.
[Features]
· Can be connected to a bite-type fitting because pipes are attached to both the ends.
· Can handle from small bore diameter. (ø3.18 to 12.7)
· A product with world's smallest bore can be manufactured. (Tube inner diameter = 3.5 mm)
· Applicable fluids: gas/air/water. (Only for fluids that do not corrode stainless steel.)
· Operating temperature: -196 to +300°C.
· Operating pressure: FV to 0.3 MPa.
[Applications]
· Used for the piping of vacuum equipment and is effective for adjusting piping errors, displacement absorption, vibration absorption, etc.

From: ฿ 1,963.20
Days to Ship: 3 Day(s)

3 Day(s)


Brand
Product Series
CAD
From
Days to Ship
Applicable Fluid
Hose Material
Max. Operating Pressure(MPa)
Inner Dia. d(Ø)
Type
Connecting Part Type
Braid
Swaged Fittings L Type
Swage Fitting R Type
Minimum Bending Radius(mm)
Connecting Part Material
Related components details

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
Brand	NANGOKU FLEXIBLE HOSE INDUSTRY	NANGOKU FLEXIBLE HOSE INDUSTRY
Product Series	NK-1400 Pipe‑End Type Flexible Hose	NK-2300PT Pipe‑End Type Vacuum Flexible Hose
CAD	2D	2D
From	฿ 987.30	฿ 1,963.20
Days to Ship	6 Day(s)	3 Day(s)
Applicable Fluid	vapor / Water / Gas / Oil / Air / Chemical	Water / Gas / Air
Hose Material	Stainless Steel (SUS304)	Stainless Steel (SUS316)
Max. Operating Pressure(MPa)	1	0.3
Inner Dia. d(Ø)	7.2 ～ 101	3.5 ～ 12.5
Type	-	-
Connecting Part Type	Pipe End	Pipe End
Braid	Provided	Not Provided
Swaged Fittings L Type	-	-
Swage Fitting R Type	-	-
Minimum Bending Radius(mm)	25 ～ 350	25 ～ 40
Connecting Part Material	Stainless Steel / Steel	Stainless Steel
Related components details	-	-

Related Categories to Flexible Hoses

FAQ about Flexible hoses

Specification

Question: For the minimum bending curve, which part of radius is used as datum for measurement?

Answer: Datum is the center of radius.

Question: What is the Spring constant?

Answer: It is a numerical representation of how much load required for expanding and contracting the hose. The smaller the spring constant, the softer it becomes.