Nangoku Flexible Hose Industry Co., Ltd.
Most recent update: 2026-02-03
NFK was founded in 1971. Assembling flexible hoses and expansion joints was initially our main area of business. We began expanding right away through a series of capital investments designed to improve and innovate equipment as we continued to meet the needs of our clients.
PR message
We manufacture Flexible hose and Expansion joint in our factory in Osaka.Joints are a key component of gas and liquid transport lines. The flexible hoses (flexible joints) and expansion joints (pipe expansion joints) we manufacture are crucial components for maintaining line safety.
These investments allowed us to start comprehensive production of finished products starting from tube elements. As a result, we started receiving acclaim from clients who recognized advantages such as our high quality, rapid delivery and low prices.
Business Contents
・Design and manufacture SUS flexible tube
・Design and manufacture expansion joint
Features
・We can provide a product in short leadtime because we can do welding, forming and processing stainless steel thin plate material in our company.
・We can design Expansion joint. We calculate from the piping drawing, the extension of the piping to design the expansion joint.
Strengths
・We have own factory in Osaka, so we can process and support all short deadline order.
・We can make Diameter 8A to 100A, length 300L to 2000L, (1ea) and send item out in the next working day. (please keep in touch.)
Materials
・Stainless steel : SUS304 SUS316 SUS316L
・SUS310S, SUS321, and Hastelloy C-22 are also available but depends on the size.
・Both ends fittings: Stainless steel, iron-based, and copper are also available.
Quantities
・We can manufacture for as little as 1 piece or unit.
Vacuum Specification, the smallest size φ3mm pipe end flexible. It can be used in semiconductor manufacturing equipment, and liquid crystal panel manufacturing equipment, etc.
【MODEL】
NK-2300PT Pipe end type for vacuum
【APPLICATION】
Pipe adjustment, displacement absorption, vibration, motion support.
*Twists cannot be absorbed.
【FEATURE】
Double-end pipe end structure allows connection with a bite fitting.
Applicable tube: CLT (Super soft annular)
size: 3.18-12.7mm
Length: 100mm-3M
*Please contact us about length.
Applicable fluid: gas, water, air
*for fluids that do not corrode stainless steel.
Operating temperature: -196 to 300℃
Operating pressure: FV to 0.1MPa
*Allowable leak amount 1.33×10-10Pa m3/sec or less
【MATERIALS】
Pipe: SUS316L
Tube: SUS316L
*Hastelloy C-22 also available (diameter 10A, 15A only)
[CONTACT]
Please make a call 072-874-0777 to EMIDAS representative in NFK.
Vacuum Specification with flange type
【MODEL】
NK -2300KF: KF flange type of vacuum
【APPLICATION】
Pipe adjustment, displacement absorption, vibration, motion support.
*Twists cannot be absorbed.
【FEATURE】
Both end: KF Flange（NW Flange）
Tube：CLT(Super soft annular)
Dimension：KF10〜KF50
Length：100mm〜3M
Fluid：Gas Air
Tenperature：-15〜150℃
Pressure：FV〜0.1MPa
*Allowable leak amount 1.33×10-10Pa m3/sec or less
【MATERIALS】
Flange SUS304・SUS316L
Tube SUS304・SUS316L
【CONTACT】
Please make a call 072-874-0777 to EMIDAS representative in NFK.
Vacuum Specification with flange type, VG and VF
Using CLT tube (Super soft annular) because of vibration.
【MODEL】
NK-2300V JIS flange type of vacuum
【APPLICATION】
Pipe adjustment, displacement absorption, vibration, motion support.
*Twists cannot be absorbed.
【FEATURE】
Choose between JIS flangeVG and VF
Tube：CLT(Super soft annular)
Dimension: DN10~DN100
Length: 200mm〜3M
Fluid：Gas Air
Tenperature：-15〜150℃
Pressure：FV〜0.1MPa
*Allowable leak amount 1.33×10-10Pa m3/sec or less
【MATERIALS】
VG Flange：SUS304、SUS316L
Tube：SUS304、SUS316L
【CONTACT】
Please make a call 072-874-0777 to EMIDAS representative in NFK.
【MODEL】
NK-6800 Standard double bellows type
【USE】
When lateral movement and axial movement are large for low pressure
【FEATURE】
This is connected the bellows of two, and then bigger move than a single type.
Applicable fluid: Exhaust gas, Air, Low-pressure steam, Water
Applicable bellows: MF, HF, iO, E
Material: SUS304, SUS316L, *Please contact us for material.
Standard: JIS, ANSI, DIN
【MATERIALS】
Bellows Stainless Steel
End Pipe Carbon steel, Stainless Steel
Flange Carbon steel, Stainless Steel
Holder Carbon steel, Stainless Steel
Shipping Bolt Carbon steel, Stainless Steel
Common Connecter Carbon steel, Stainless Steel
【CONTACT】
Please make a call 072-874-0777 to EMIDAS representative in NFK.
【MODEL】
NK-FJ-S Sanitary flange type Fluorine resin hose
【USE】
Adjustment of piping, Lateral deflection, for chemical liquid
*Do not torque the hose.
【FEATURE】
Both end is fluorine resin flexible section in the sanitary flange(Ferrule).
Applicable fluid: Air, Water, Chemical fluid
*Limited to a fluid that does not pass through the fluorine resin.
Standard: JIS, ISO, IDF
Nominal DIA: 1.0s~2.0s
Length: 250mm~10M
Operating temperature: -50〜180℃
Operating pressure: 0.1~1.0MPa
【MATERIALS】
～NK-FJS-S/ Straight tube.～
Sanitary Flange Stainless Steel
Sleeve Stainless Steel
Ring Stainless Steel
Tube PTFE
Braid Stainless Steel
Guard Spring Stainless Steel
～NK-FJP-S/ Helical tube.～
Sanitary Flange Stainless Steel
Ring Stainless Steel
Tube PTFE
Braid Stainless Steel
【CONTACT】
Please make a call 072-874-0777 to EMIDAS representative in NFK.
【MODEL】
NK-HPG
【MATERIALS】
～NK-HPG-F：Flange type～
Flange Carbon steel, Stainless Steel
End Pipe Carbon steel, Stainless Steel
Socket Carbon steel, Stainless Steel
Ring Stainless Steel
Tube Stainless Steel
Braid Stainless Steel
～NK-HPG-S：Screw type～
Nipple Carbon steel, Stainless Steel
End Pipe Carbon steel, Stainless Steel
Ring Stainless Steel
Tube Stainless Steel
Braid Stainless Steel
～NK-HPG-P：Pipe end type～
Pipe Carbon steel, Stainless Steel
End Pipe Carbon steel, Stainless Steel
Ring Stainless Steel
Tube Stainless Steel
Braid Stainless Steel
[CONTACT]
Please make a call 072-874-0777 to EMIDAS representative in NFK.
【MODEL】
NK-FJS-B/ Straight tube
NK-FJP-B/ Helical tube
【USE】
Adjustment of piping, Lateral deflection, for chemical liquid
*Do not torque the hose.
【FEATURE】
Both end is fluorine resin flexible section in the male union.
Applicable fluid: Air, Water, Chemical fluid
*Limited to a fluid that does not pass through the fluorine resin.
Standard: JIS, ANSI, DIN
Nominal DIA 6~50
Length: 250mm~10M
Operating temperature: -50〜180℃
Operating pressure: 0.1~1.0MPa
【MATERIALS】
~NK-FJS-B/ Straight tube ~
Nipple Carbon steel, Stainless Steel
Nut Stainless Steel
Sleeve Stainless Steel
Ring Stainless Steel
Tube PTFE
Braid Stainless Steel
Guard Spring Stainless Steel
~NK-FJP-B/ Helical tube~
Nipple Carbon steel, Stainless Steel
Nut Carbon steel, Stainless Steel
Sleeve Stainless Steel
Ring Stainless Steel
Tube PTFE
Braid Stainless Steel
【CONTACT】
Please make a call 072-874-0777 to EMIDAS representative in NFK.
【MODEL】
NK-FJS-F/ Straight tube.
NK-FJP-F/ Helical tube.
NK-FJIS-F/ Insert tube.
【USE】
Adjustment of piping, Lateral deflection, for chemical liquid
*Do not torque the hose.
【FEATURE】
Both end is fluorine resin wetted parts with floating flange.
Applicable fluid: Air, Water, Chemical fluid
*Limited to a fluid that does not pass through the fluorine resin.
Standard: JIS, JPI, ANSI, DIN *Available for other dimensions.
Nominal DIA 15~100
*Please contact us for Nominal Diameter.
Length: 250mm~6M
*Please contact us about the length.
Operating temperature: -50〜180℃
Operating pressure: 0.1~1.0MPa
【MATERIALS】
～NK-FJS-F / Straight tube～
Flange Carbon steel, Stainless Steel
Stub End Stainless Steel
Tube PTFE
Braid Stainless Steel
Guard Spring Carbon steel, Stainless Steel
Ring Stainless Steel
Back-up Gasket Non Asbestos
～NK-FJP-F / Helical tube～
Flange Carbon steel, Stainless Steel
FL Fitting Stainless Steel
Tube PTFE
Braid Stainless Steel
Back-up Gasket Non Asbestos
～NK-FJIS-F / Insert tube.～
Flexible Tube Stainless Steel
Braid Stainless Steel
Collar Stainless Steel
Flange Stainless Steel
Back-up Gasket Non Asbestos
Inner Tube PTFE
[CONTACT]
Please make a call 072-874-0777 to EMIDAS representative in NFK.
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Semiconductor manufacturing equipment manufacturing（ Product manufacturing / Production property ） |
|---|
| Company name | Nangoku Flexible Hose Industry Co., Ltd. | Website URL | https://en.nfk-jp.com/ |
|---|---|---|---|
| Street address |
Daito City Osaka Japan
[See map] |
Person in charge | 宮本 健次 |
| Telephone number | +81-72-874-0777 | Fax number | +81-72-874-0786 |
| Capital | 50,000,000 JPY | Employees | 140 |
| Annual sales | EMIDAS Member Number | 103683 | |
| Type of manufacturing | Heavy electric machinery / Machine tools / Industrial machinery | ||
| Main 3 products |
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| Primary clients |
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| Large | Medium | Small |
|---|---|---|
| Designing | Test | Destructive test Nondestructive test Chemical analysis |
| Development and production of prototype/Small-scale production | Machining | Stainless steel pipe manufacturing |
| Development and production of prototype/Small-scale production | Welding/Adhesive bonding | CO2 welding TIG welding (argon welding) Arc welding Brazing |
| Assembly/Inspection | Assembly | Construction component assembly Industrial machinery assembly |
| Parts manufacturing | Machinery part | Connection parts manufacturing pipe manufacturing |
| Product manufacturing | Production property | Other industrial machinery manufacturing Vacuum equipment manufacturing Fluid equipment manufacturing Semiconductor manufacturing equipment manufacturing |
| Product manufacturing | Plant equipment manufacturing | Plant equipment manufacturing Marine vessel equipment manufacturing Steel and furnace apparatus manufacturing |
| Product manufacturing | Construction and civil engineering machinery manufacturing | Construction and civil engineering material manufacturing Pipe connection |
