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Hachiken FG Global Joint

Made in Japan
Manufacturer : Hachiken
Model : FG

Standard spherical flexible joint for anti-vibration joints around pumps. A large anti-vibration effect can be obtained in spite of the short face-to-face dimension.

Feature

  • The main body is spherical, so it is stable against internal pressure, and it can withstand negative pressure, so it can be used for both delivery and suction.
  • Due to its spherical shape, dimensional change during pressurization is extremely small compared to other types of joints.

Usage

  • Building equipment piping
  • HVAC plumbing
  • Ship piping
  • General factory equipment piping

Structure and material

Global joint structural drawing
Part number Name Material
1 Inner rubber EPDM
2 Reinforcing layer Synthetic fiber
3 External rubber synthetic rubber
4 Reinforcing wire Steel wire
5 Fange SS※

*The standard flange is electrogalvanized.

Dimensions and performance table

Nominal diameter A. L. Maximum working pressure Standard maximum displacement Mass
kg
Internal pressure MPa Negative pressure kPa Shrinkage Stretch Eccentricity
20A 20 97 1.00 -90 2 2 5 1.4
25A 25 97 1.00 -90 2 2 5 2.2
32A 34 96 1.00 -90 2 2 5 2.8
40A 34 96 1.00 -90 2 2 5 3.0
50A 48 106 1.00 -90 2 2 6 3.7
65A 61 116 1.00 -90 2 2 6 4.8
80A 68 133 1.00 -90 3 3 6 5.1
100A 97 136 1.00 -90 3 3 10 5.8
125A 122 175 1.00 -90 3 3 10 9.1
150A 140 185 1.00 -90 3 3 14 13
200A 188 209 1.00 -90 3 3 16 16
250A 241 237 0.75 -90 3 3 16 24
300A 290 264 0.75 -50 4 4 16 28
350A 320 264 0.75 -50 4 4 16 33

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

※2. Weight is a guideline.

Option

Standard Option
Flange standard JIS 10K Clean water F12, JIS 5K (25A or more)
Flange material SS plating SUS304/SUS316
Inner rubber material EPDM CR/NBR

*For JIS5K, please inquire separately as the flange dimensions are partly different from the standard.

<Remarks/Precautions>

  • Insert the mounting bolt from the rubber joint side.
  • Make sure that the mounting bolt does not touch the rubber joint body.
  • As this is a mold product, we cannot manufacture non-standard dimensions.

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