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Tytp BL
Type JTB
Type TB
Type ZB
Type WDB
Type XHB
Type DHB
Type JB
Type WJB
Type NPB
Type QWP
Type ZPB
Type QPB
Type NTZ
Type WTZ
Type CYTB
Type GTB
Type TBM
Type TBG

Bend pressure balanced Expansion Joints(Type QP B)

•  Product Features

    Bend pressure balanced expansion joint contains two compensating bellows at the flow end and one balanced bellows at the blind end. The compensating bellows absorb the lateral deflection imposed to the bend portion while the balanced bellows absorbs the axial movement imposed to the straight portion. when lateral deflection arises at the bend end, the spherical nuts will rotate against the spherical collars. The tie rods are designed to withstand the thrust of expansion joint due to internal pressure. This type of expansion joint is usually used in the outlet of pumps, tanks. compressors and turbines, etc. to reduce the forces imposed to the above mentioned equipment.

•  Applicable Conditions

Working pressure: 0.1 through 2.5 (MPa)
Working temperature: -20 through 450 (¡æ)
Service life: 1000 (times)

Flange£ºGB¡¢ANSI¡¢JIS¡¢DIN etc


• Product Specification

Nominal ID(DN): ¦µ200 through
1500 (mm)


•  STRUCTURE

• Material

1.Bellow£ºStainless steels 304 316L 321 254 309 Inconel625 31803 etc
2.Flange¡¢weld Ends£ºCarbon steel Stainless steels etc
3.Tie rod Nuts£ºCarbon steel Stainless steels etc
 

 The product code consists of following elements¡¡

•  Guides for expansion Joint installation

1. The expansion joint shall be installed according to the engineering drawing of pipe line and the expansion joint installations
2. In order to insure proper function of any expansion joints, it is necessary that all pipe lines in which expansion joints are located be suitably guided and anchored. The guides and anchors must be installed strictly in accordance to relevant technical documentation. Please refer to the ¡°guideline for installation of Expansion Joints¡± about the principle of using guides and anchors.
3. Since the bellows used in expansion joints are made of thin stainless steel sheets, special attention shall be paid when transporting, handing and welding to avoid damage of bellows caused by dents, scores, arc strikes and weld spatters.
4. Any foreign laterals in the bellows and pipes shall be removed to ensure the proper function of expansion joints before installation.
5. If the flow direction is specified, be sure to install expansion joint with the proper orientation with the respect of flow direction arrow.
6. No movement of the expansion joint (such as axial compression or extension, lateral offset, or rotation) due to piping misalignment shall be imposed during installation so as to ensure proper function of the bellows.

 Date sheet
Date sheet £¨Pressure£º0.6MPa£©
Product type
Dia.
D
N
£¨mm£©
compensating Number
Convolution
nt
balanced
Number
Convolution
np
overall
Length

£¨mm£©

Axial
Spring
rate
Kx
¡NN£¯mm

Lateral
spring
rate

Ky
N£¯mm
Movemeng

End pipe doxS
(mm)

Axial
mm
Lateral
mm
6QPBSK700x8£¯6-J
700
4+4
6
3765
773
154
162
95
¦Õ720x10
6QPBSK800x8£¯6-J
800
3940
820
208
161
83
¦Õ820x10
6QPBSK900x8£¯6-J
900
4315
867
176
159
73
¦Õ920x10
6QPBSKl000x10£¯7-J
1000
5+5
7
4702
997
236
199
77
¦Õ1020x10
6QPBSKll00x10£¯7-J
1100
5085
1064
211
197
71
¦Õ1120x10
6QPBSKl200x10£¯7-J
1200
5260
1137
265
194
65
¦Õ1220x10
6QPBSKl300x10£¯7-J
1300
5735
1211
242
179
60
¦Õ1320x10
6QPBSKl400x10£¯7-J
]400
5910
977
226
154
56
¦Õl420x10
6QPBSKl500X10£¯7-J
1500
6295
1035
209
154
52
¦Õ1520x10
 


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