Made in Japan
Manufacturer : Hachiken
Model : KS

Straight flexible tube

A uniquely designed straight pipe type flexible pipe that protects pipes from displacement caused by earthquakes and uneven subsidence. Steel wire inserted in a spiral shape provides high pressure resistance and cross-sectional area retention capability.

Feature

• It has a very simple structure without an arch structure and is highly reliable.
• The steel wire inserted in a spiral shape inside provides high pressure resistance and cross-sectional area retention capability.
• The simple structure has a great price advantage.

Kinds

• KS100: For 100mm eccentricity (for above ground and buried)
• KS200: For 200mm eccentricity (for ground and buried)

The Purpose

• Absorption of displacement caused by earthquakes
• Absorption of displacement due to uneven subsidence in soft ground, etc.
• Vibration absorption

Usage

• Sewer pipe
• Pump station piping
• Sewage treatment plant piping
• General factory piping

Standard specifications

• Maximum operating temperature : -10 to 60°C
• Maximum operating pressure :
  <Negative pressure> See performance chart
  <Internal pressure> 1.00MPa
• Installation conditions : Buried depth 1-3m, vehicle weight 25t
• Flange standard : JIS 10K
• Inner rubber material : EPDM

Structure and material

Part number	Name	Material
1	Inner rubber	EPDM
2	Reinforcing layer	Synthetic fiber
3	Reinforcing wire	Steel wire
4	Reinforcing layer	Synthetic fiber
5	External rubber	EPDM
6	Flange	SS*

*Flanges are hot-dip galvanized for ground use and hot-dip galvanized + black epoxy resin paint for underground use as standard.

Dimensions and performance table

* Please note that there are sizes with different lengths from the flexible tube (KA).

※1. Each displacement amount is the value when each is displaced independently.

Option

	Standard	option
Flange standard	JIS 10K	Tap water F12, JIS 5K, JPI class 150, etc.
Flange material	SS plating	SUS304, SUS316, etc.
Inner rubber material	EPDM	CR, NBR, NR, wear resistant

<Remarks/Precautions>

• If necessary, use the control unit ( here ).
• If the fluid is gas, the maximum working pressure will be 1/2 of the above value.
• Please contact us for non-standard specifications (diameter, length, etc.).
• Due to the manufacturing method, the plating on the flange may be discolored or mottled, but this does not affect performance.