Mr. Houson, Email:chinaspa86@yahoo.cn, MSN:chinahottub@hotmail.com, QQ:332416379, URL: http://www.chinahottubjmore
- Tel: 0086-13590912876
- Fax: 0086-760-23127855
 | GuangDong LianSheng Pool&Spa Equipments Co.,LTD.Manufacturer,exporter,supplier of spa,hot tub,jacuzzi,swimming pool spa,steam room,sauna room,bathtub,massage bathtub. Contact:Mr.Houson,Mobile:0086-13590912876, Email:chinaspa86@yahoo.cn, MSN:chinahottub@hotmail.com, QQ:332416379.
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ZhongShan City LianSheng Bathroom Equipment Co.,LTD.(Ymir Spas) is one of the most professional and leading manufacturer,exporter,supplier of swimming pool spa,spa,hot tub,jacuzzi,bathtub,massage bathtub,steam room,sauna room. And it was established in 2001, and had sucessfully got the ISO9001:2000 certification and the CE approval. Contact: Mr. Houson Hou, Mobile: 0086-13590912876, Email:chinaspa86@yahoo.cn, MSN: chinahottub@hotmail.com, QQ: 332416379, URL: http://www.chinahottubjacuzzipoolspa.com.
Ymir Spas
管道DN15,DN20,DN25,DN32,DN40,DN50,DN65,DN80,DN100,DN125,DN150,DN200
4分：DN15
6分：DN20
1寸：DN25
1.2寸：DN32
1.5寸：DN40
2寸：DN50
2.5寸：DN65
3寸：DN80
4寸：DN100
5寸：DN125
6寸：DN150
8寸：DN200
3分管就是公称通径为DN10的管子 4分管就是公称通径为DN15的管子 6分管就是公称通径为DN20的管子
比较专业的回答是：4分是英制管道直径长度的叫法，即1/2英寸．等于公制的15mm.
1英寸等于8分.合公制的25.4mm.
6分＝3/4英寸＝20mm.
4分＝1/2英寸＝15mm.
另外记住管道都是以内径计算的．
不过管道的丝扣螺纹都是以中径来计算的．用通径DN表示．螺纹分公制M和英制G，管道螺纹一般用英制，螺纹角度为55度．公制是60度．．
DN15.DN20.DN25.DN32.DN40.DN50.DN65.DN80.DN100.DN125.DN150.DN200