双壁波纹管是采用两台单螺杆挤出机塑化挤出物料，经复合机头将物料挤出并形成壁厚均匀的同心胚管，进入成型机内与模块组合成腔。在外层与模块之间抽真空，使外层紧贴模块，同时在内层与外层之间填充压缩空气，使波峰处的内外层分离，在定径棒和模块的作用下，使波谷处的内外层压合，从而形成内壁平滑，外壁凹凸的双层波纹管。
双壁波纹管按材质分PVC和PE两大类。 |
Dual Wall Bellows may adopt two sets of single screw extruding machine in plasticizing and extruding materials,extrude materials through the composite head and form the concentric embryonic pipe with uniform wall thickness,enter into the shaping machine to form a cavity in combination with the module.Evacuate the air between the exterior layer and module,make the exterior layer cling to the exterior and the interior,make the exterior layer separated form the module on the position of wave ridge,under the effection of sizing diameter bar and module,make the exterior/interior layers laminated on the position of wave trough,and then form the dual wall bellows with smooth wall on the interior,concave and convex on the exterior wall.
Dual wall bellows may be divided into two primary categories as PVC and PE.
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项目
Item |
指标 Indicators |
| PVC |
PE |
环钢度
Ring Rigidity
KN/m2 |
S1 |
≥4.0 |
≥4.0 |
| S2 |
≥8.0 |
≥8.0 |
冲击性能（TIR）,%
Impact Properties(TIR),%
Flexible ring |
≤10 |
≤10 |
环柔性
Ring Flexibility |
式样圆滑，无破裂，两壁无脱裂
Testing Sample is smooth,no cracking ,and no splitting on both walls. |
式样圆滑，无破裂，两壁无脱裂
Testing Sample is smooth,no cracking ,and no splitting on both walls. |
烘箱实验
Drying Oven Test |
无分层，无开裂和气泡
no layering,no cracking and air bubble |
无分层，无开裂和气泡
no layering,no cracking and air bubble |
蠕变率
Creep Rate |
≤2.5 |
≤4 |
接点渗漏
Contaction Point Leakage |
无破裂，无渗漏
no cracking,no leakage |
无破裂，无渗漏
no cracking,no leakage |
扁平试验
Flattening Test |
压扁至外径1/2无破裂，两壁无脱开
No cracking when flattining it to 1/2 of the exterior diameter,no detachment on both walls. |
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二氯甲烷浸渍
Methylene Chloride Impregnation |
外壁无分离，表面变化不劣于L
No separating on the exterior wall,surface changing dose not compare unfavourably with L |
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1、材质新颖，结构合理，强度高，抗压耐冲击性好；
2、内壁光滑，不结垢，流通量大，同流量使用口径小；
3、一般情况下，排管不需要做混凝土基础，施工速度快；
4、橡胶圈承接连接，接头密封好，方法可靠；
5、质量轻，搬运、安装方便，无须机械；
6、柔性接口，抗不均匀性沉降强；
7、耐酸碱等许多介质的腐蚀，使用范围在PH值为2-12之间；
8、使用寿命长，大于50年。 |
1.Materials is new,structure is resonable,high strength,excellent compressive strength and impact resistance;
2.The interior wall is smooth,no scaling formation,throughput capacity is larger,and using diameter is smaller under the same throughput capacity;
3.As for the normal situations,no necessary to use concrete as the base when arranging pipes,construction speed is fast;
4.Use rubber ring socket and spigot joint,the joint sealing is good,and method is reliable;
5.Light in weight,it is convenient for carrying and installation,no necessary to use machine;
6.Flexible connector,strong capacity of resisting uneven settlement;
7.Endure the corrosion of various mediums as acid and alkaline etc,;PH value of using range is between 2 and 12;
8.Long using life,is over 50 years. |
HDPE双壁波纹管尺寸
HDPE Dual Wall Bellows Size |
公称内径mm
Nominal diameter
|
最小平均内经mm
Minimum Average diameter
|
| 100 |
95 |
| 125 |
120 |
| 150 |
145 |
| 200 |
195 |
| 225 |
220 |
| 250 |
245 |
| 300 |
294 |
| 400 |
392 |
| 500 |
490 |
| 600 |
588 |
| 800 |
785 |
| 1000 |
985 |
| 1200 |
1185 |
|
PVC-U双壁波纹管尺寸
PVC-U Dual Wall Bellows Size |
公称内径mm
Nominal diameter
|
最小平均内经mm
Minimum Average diameter |
| 110 |
97 |
| 125 |
107 |
| 140 |
118 |
| 160 |
135 |
| 180 |
155 |
| 200 |
172 |
| 225 |
191 |
| 250 |
216 |
| 280 |
243 |
| 315 |
270 |
| 355 |
310 |
| 400 |
340 |
| 450 |
383 |
| 500 |
432 |
| 560 |
486 |
| 630 |
540 |
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市政建设、住宅小区地下水排水、排污管道；高速公路、地铁预埋管道；高压电缆、邮电通讯电缆护套；港口、石油、化工、矿山用于流体的输送以及农田水利灌溉输送等。 |
Municipal construction,rainwater drainage and pollution discharge pipe for housing estate;pre-buried pipes for expressway and metro;protective casing pipe for high-voltage cable,post & telecommunications;liquid transportiing pipes for port,petroleum,chemical industry,mine;agricultural irrigation transporting pipes etc. |
