The accessory material of the conventional rain gutter is PVC, and the accessory material of the rubber ring type is PVC and rubber ring.
1.PVC raw materials are selected from major domestic suppliers, and must be strictly tested before they can be put into production. All products are produced using new materials.
2.The rubber ring is made of NBR material, which has good comprehensive mechanical properties, and has good resistance to oil media, water, solvent and high pressure oil. Secondly, it has good compression set, wear resistance and elongation. . Our rubber factory is responsible for ensuring the quality and delivery of rubber rings.
Performance | Requirement | Test parameters | Experiment method | |
Drop hammer impact strength(Type test) | No visible cracks or cracks (no magnification) | temperature | （0±2）℃ | Appendix B |
Tensile Strength(Type test) | ≥42N/mm² | Speed Sample form | 5mm/min Type 2, 3 or 5a (according to EN ISO 527-2) | EN 638 |
Elongation at break(Type test) | ≥100% | Speed Sample form | 5mm/min Type 2, 3 or 5a (according to EN ISO 527-2) | EN 638 |
Tensile impact strength(Type test) | ≥500KJ/m² | Sample form temperature | Type 2, 3 or 5a (according to EN ISO 8256) (23±2)℃ | EN ISO 8256 |
Longitudinal retraction rate(Type inspection and production control inspection) | ≤3% | Test temperaturetime | （100±2）℃
（30±2）min | EN 743 |
Vicat softening temperature(Type test) | ≥75℃ | EN 727 | EN 727 | |
a In case of dispute, use specimen type 5. | ||||
Performance | Requirement | Test parameters | Experiment method | |
Thermal effect a(Production control inspection) | C and d | temperature time | （150±2）℃ （15±2）min | EN 763 Method A, air |
Thermal shrink b(Type test) | No visible deformation by visual inspection (no magnification) | temperature time | （65±2）℃ （30±2）min | Appendix C |
Vicat softening temperature(Type test) | ≥75℃ | EN 727 | EN 727 | |
a No seal, only suitable for injection-molded pipe fittings. b Suitable for non-injection injection pipe fittings. C 1)Within a radius of 15 times the wall thickness near the gate, the depth of cracks, peeling or bubbles should not exceed 50% of the wall thickness at that point. 2)Within 10 times the wall thickness of the diaphragm gate, the depth of cracks, delamination or bubbles should not exceed 50% of the wall thickness at that point. 3)Within 10 times the wall thickness of the ring gate, the crack length should not exceed 50% of the wall thickness at this point. 4)The weld line opening shall not exceed 50% of the wall thickness of the line. 5)The depth of cracks and skinning on other parts of the surface should not exceed 30% of the wall thickness at that point. The length of the bubble should not exceed 10 times the wall thickness.D By visual observation, there should be no foreign particles on the pipe section. | ||||
Performance | Requirement | Test parameters | Experiment method | |
Artificial aging b(Type test) | Radiant energy Cycle and temperature | 2.6GJ/m2
| EN ISO 4892-2 method A (Xenon lamp test)Artificial aginga | |
a | ||||
Exposure time cycle:Irradiation Condensation | UVA351 lamp 1600h
（50±2）℃6h （50±2）℃2h | EN ISO 4982-3 （QUV test） | ||
colour: According to EN 20105-A02 gray level, the color change should not exceed level 3 | EN 20105-A02 | |||
Tensile impact strength: ≥50% of before aging (see Table 1) | 试样类型 Specimen type 测试温度 test temperature | 类型2、3或5a（按照EN ISO 8256 （23±2）℃ | EN ISO 8256 method A | |
Water tightness(Type inspection) | No leakage | Appendix D | Appendix D | |
a In case of dispute, the method of EN ISO 4892-2 (Xenon lamp test) should be used.b This test is a type test of formula and color, and can also be used for other products (such as pipes and fittings that comply with EN 12200-1) | ||||