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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

In-line pressure balanced Expansion Joints(Type ZP B)

•  Product Features

    This kind of expansion joint contains two compensating bellows at each ends and a balanced bellows in the middle. The thrust of expansion joint due to internal pressure is restrained by means of tie devices(such as tie rods or initial connecting pipes)interconnecting the compensating bellows so that only the intermediate anchor is required in pipe line. This type of expansion joint can absorb axial movement only.

•  Applicable Conditions

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

FlangeGBANSIJISDIN etc


• Product Specification

Nominal ID(DN): 50 through
6000 (mm)


•  STRUCTURE

• Material

1.BellowStainless steels 304 316L 321 254 309 Inconel625 31803 etc
2.Flangeweld EndsCarbon steel Stainless steels etc
3.Tie rod NutsCarbon 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 Pressure0.6MPa)
Product type
Dia.
D
N
mm

Number
Convolution

n

Overall
Length

mm

Axial
Movement

X(mm)

Axial
Spring rate

kX
Nmm

Max
Dia.

B(mm)

End pipe
doxS
(mm)

6ZPBSK600x48J
600
12
2250
78
4410
1220
630x10
6ZPBSK600x612J
18
2600
90
2940
6ZPBSK600x816J
24
2950
156
2200
6ZPBSK700x48J
700
12
2250
79
4945
1365
720x10
6ZPBSK700x612J
18
2600
120
3297
6ZPBSK700x816J
24
2950
158
2473
6ZPBSK800x48J
800
12
2250
67
7228
1520
820x10
6ZPBSK800x612J
18
2600
102
4819
6ZPBSK800x816J
24
2950
135
3614
6ZPBSK900x48J
900
12
2250
80
4628
1670
920x10
6ZPBSK900x612J
18
2600
123
3085
6ZPBSK900x816J
24
2950
158
2314
6ZPBSKl000x48J
1000
12
2250
79
5042
1840
1020x10
6ZPBSKl000x612J
18
2600
98
3362
6ZPBSKl000x816J
24
2950
158
2521
6ZPBSKll00x48J
1100
12
2440
97
3880
1986
1120x12
6ZPBSKll00x612J
18
2750
150
2990
6ZPBSKll00x816J
24
3110
186
1940
6ZPBSKl200x48J
1200
12
2400
120
5062
2130
1220x12
6ZPBSKl200x612J
18
2750
129
3375

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