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Curved Tube Pressure Balanced Type (QYP Type)

The front passage end of this type of expansion joints has two workin>g bellows, able to absorb the lateral dispEacement generated Irom the cmved tube segment; whfch rear part (balanced end) has a balanced bellow, able to absorb the axial displacement generated from the straight tube segment. When the curved tube segment generates a lateral displacement, the spherical surface nut on tile large pull rod rotates around the spherical surface washer, while the large pull rod shall bear the internal pressure pushes, tiius this type oi expansion joints is generally used at the openings ol pumps, cans, compressors and turbines, to reduce the stress laid upon the abovementioned equipment.

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Description

Curved Tube Pressure Balanced Type (QYP Type）

1-Nozzle

2-Transport Tie Rod

3-Bellow

4-Middle Nozzle

5-Tie Rod

6-Curved Nozzle

7-Head

Technical Parameter Table

Nominal Diameter

DN

mm

  Number of bellows at Passage End

n

  Number of Bellows at Balanced End n  Movement  Axial Single Wave Rigidity FCjo mtn Lateral Total Rigidity mm Size  Total Product Length
Axial

X

  Lateral Yomm A B  Connection Pattern
mm Nozzle Flange
The design pressure Pd = 0.6 MPa (6 kgf/cm2), the fatigue life (N] = 1000 times and the design temperature t=20℃
700 8

【4+4)

 6 20 20 2651 154 2268 700 3765 3777
800 2811 208 2383 800 3940 3952
900 2974 f76 2683 900 4315 4327
1000 10

(5+5)

 7 30 30 4106 236 2890 1000 4702 4714
1100 4382 211 3198 1100 5085 5097
1200 4600 265 3298 1200 5260 5272
1300 4985 242 3648 1300 5735 5747
1400 4021 226 3748 1400 5910 5922
1500 4261 209 4048 1500 6295 6307

Our company can produce the expansion joint with larger (or smaller} specifications except the type in this table. Technical parameters can be adjusted and designed according to customer requirements.

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