Longer life使用寿命长
To 30-50 years可达30-50年。
Better anti-frozen capability抗冻性能好 Premium anti-frozen capability优异的抗冻性能,
No-frozen below -40℃在零下40℃以下不冻裂。
Small injection pressure注水压力小
Smooth inside surface, no fouling or
wax, small friction内壁光滑，不易结垢结蜡，摩阻阻力小。
GRE Absolute roughness-0.5mm;
SMLS Absolute roughness-2.3mm. Under same & flow rate, OD of GRE can be 1-2 lever lower than SMLS 玻璃钢管的绝对粗糙率为0.05 mm；无缝钢管的绝对粗糙率为2.3 mm。在输送功率和流量相同的情况下，选用玻璃钢管，其管道直径可比钢管缩小1-2个管径等级。
Lower maintenance costs维护费用低
Free maintenance for non-outer
damage非外力致损，免维护。
Lower mass质量轻
Lower transportation & installation
coasts运输、安装费用低。
Weight of GRE is forth of that of Steel Pipe and need no welder or heavy lifting quipment. 玻璃钢管的重量只有钢管的1/4,且不需电焊机及重型吊装设备。
Low thermal conductivity导热系数低
No heat insulation material under
non-tough conditions
非恶劣条件不需增加保温材料。
Premium insulating capability绝缘性能优良
Not be influenced by complicated
geographic conditions 不受复杂地理条件影响。
Environment- friendly 环保
Environment- friendly raw material,
energy-efficient during manufacturing, no second-contamination and no
leakage in application.
原料绿色环保，生产过程节能降耗，使用过程无二次污染、无泄露。
Short life使用寿命短
To 5-10 years 一般5-10年
Bad anti-frozen capability抗冻性能差 Prone to freezing under low temperature 低温容易冻裂。
High injection pressure注水压力大
Rough inside surface, more waxing
and friction内壁较粗糙，结垢结蜡，摩阻阻力大；
In long term, wall corrosion leads to
ID shrinking and form rust particles in water, producing block/jam
长期运行，管壁锈蚀导致内径缩小，同时水中出现铁锈颗粒，造成岩层堵塞。
High maintenance costs维护费用高
Need external coating, cathodic
protection, and regular replacement of sacrifice anode. When the coating is damaged, punching rate will be higher. Welding line radiation inspection, multi lines leading increasing maintenance costs year by year.
需要外加防腐涂料、阴极保护、定期更换牺牲阳极。防腐层老化破损后，穿孔率较高。需放射线焊口探伤，焊缝多，维护费用逐年增大。
Heavy mass质量重
Higher transportation & installation
coasts, need heavy equipment for installation运输、安装费用高，安装需大型设备。
High thermal conductivity导热系数高
Big heat loss, need more heat
insulation material热流失大，需增加保温材料。
Bad insulating capability 绝缘性能差
Good conductor of electricity, nor fir
for electricity transportation and areas
with dense wires and thunders and lightings
电的良导体，不利于应用于输电、电信线路密集区和多雷区。
High energy use and contamination高耗能、高污染
High energy consumption in
manufacturing, transportation and installation, with second contamination and prone to leakages. 生产、运输、安装过程高能耗，使用过程存在二次污染，原油泄露时造成环境污染。
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