Straight Tube Bypass Pressure Balanced Type (ZPP Type)

I.This type of expansion joints have the ability to absorb internal pressure pushes, which self-balancing performance is better than the ZYP type; small in rigidity, good in guidance quality; small in shape size, good in economy; the product installation has no orientation requirement

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Description

Structural Sketch

1- Nozzle

2-I Bellow I

3-Reinforcing Rings

4-II Bellow II

5-Vent

6-外壳 Cover

7-External head

8-Tie Rod

9-Condensate Trap

Technical Parameter Table

 Nominal Diameter DN mm  

Number of Bellows

n

 Axial Movement Xo mm  

Axial Rigidity

 N/mm

 Radial Shape Maximum Size H mm  Total Length L mm
 Connection Pattern
 Nozzle J Flange F
The design pressure Pd = 1.6 MPa (16 kgf/cnns ,the fatigue life [N] = 1000 times and the design temperature t = 20 t.
200 16 78 1309 426 1^4 1573
32 156 655 2178 2200
250 16 75 1602 529 1648 1672
32 150 801 2265 2290
300 16 98 1347 630 1887 1910
32 196 674 2612 2636
350 16 95 1535 670 1982 2010
32 190 770 670 2705 2730
400 16 93 1726 720 2100 2124
32 186 863 2827 2852
450 16 91 1921 620 2146 2170
32 182 961 2867 2890
500 16 90 2112 920 2241 2265
32 180 1056 2962 2986
600 16 132 2390 1120 2991 3015
32 264 1195 4142 4166
700 12 130 3471 1220 3255 32BO
24 260 1736 4480 4504
800 12 128 3821 1320 3434 3453
24 256 1911 4658 4682
900 12 126 4188 15S0 3643 3667
24 252 2094 4896 4920
1000 12 144 4712 1620 3842 3866
24 288 2365 5104 5128
1100 12 141 5112 1720 4000 4024
24 282 2556 5261 52B5
1200 12 133 5517 1920 4160 4184

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