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- Contact Person : Mr. Ma Edwin
- Company Name : Haining City Baoguang Heat Collection Tubes Co., Ltd.
- Tel : 86-573-87860877
- Fax : 86-573-87860677
- Address : Zhejiang,Email us: edwin4cnbg(at)hotmail.com,# 4 Yuanhua Industrial Zone,Haining City, Zhejiang 314416.China
- Country/Region : China
- Zip : 314416
Silicon seal loop for solar water heater
Product Detailed
Related Categories:Solar Water Heater Parts
Silicon and Rubber Seal Loop for Solar Water Heater
Product Description
1) Diameter: 47mm, 58mm, 70mm
2) Material: silicon
Series Number | Test Item | Requirement | Test Results | ||
1 | Shore Hardness Degree | 50±5 | 55 | ||
2 | Tensile Strength Mpa | ≥7 | 8 | ||
3 | Elongation at Break % | ≥300 | 355 | ||
4 | Permanent Deformation at Break % | ≤20 | 4 | ||
5 | Air-oven againg70 | Tensile Strength Change Rate % | Max-20 | 0.4 | |
Change Rate of Elongation at Break% | -30~-10 | -17 | |||
6 | Sanitation Properties | Evaporation Residue in Distilled Water mg/L | ≤50 | 11 | |
Potasssium Permanganate Wastage mg/L(Soak Solution) | ≤40 | 2 | |||
Zinc(Soak Solution of 4% Acetic Acid)mg/L | ≤100 | 2.5 | |||
Heavy Mettals (According to Pb)mg/L | ≤1.0 | 1.0 | |||
Silicon seal loop for solar water heater
