以下是符合要求的PPR截止阀与闸阀产品中英文介绍：
PPR截止阀与闸阀产品说明
PPR截止阀和闸阀是流体控制系统中不可或缺的关键组件，采用优质无规共聚聚丙烯（PPR）材料制成，适用于冷热水输送、暖通系统及工业管道领域。产品涵盖20mm、25mm、32mm、40mm、50mm、63mm等常用规格，可满足不同场景的安装需求。
材质特性
PPR材质具备优异的耐高温性（长期耐受70℃水温，短期耐受95℃水温）、抗化学腐蚀性及环保安全性，长期使用不结垢、不滋生细菌，符合生活用水卫生要求。阀门内壁光滑，可有效降低流体阻力，减少能源损耗。
结构设计
截止阀采用精密模压工艺成型，阀杆与阀座接触面经过特殊处理，确保启闭灵活且密封性能稳定；闸阀主体结构采用流线型设计，全通径结构使流体通过时无阻碍，适用于需要完全开启或关闭的管道场景。两种阀门均配备耐磨损EPDM密封圈，有效防止渗漏，延长使用寿命。
应用优势
- 安装便捷：热熔承插连接方式简单高效，与PPR管道系统兼容性强
- 维护成本低：耐候性优异，不受水质影响，长期使用无需频繁更换
- 适配性强：多规格尺寸可匹配不同流量需求，适用于家庭供水、农业灌溉及商业建筑等多种场景
规格参数
- 公称直径：20/25/32/40/50/63mm
- 工作压力：PN20（常规冷水）/PN16（高温热水）
- 适用介质：冷热水、中性液体
PPR Stop Valves & Gate Valves Product Description
PPR stop valves and gate valves are essential components in fluid control systems, manufactured from premium polypropylene random copolymer (PPR) material. These valves are widely used in cold/hot water supply, HVAC systems, and industrial pipelines, available in 20mm, 25mm, 32mm, 40mm, 50mm, and 63mm specifications to meet diverse installation requirements.
Material Properties
PPR material exhibits outstanding heat resistance (withstands 70℃ long-term and 95℃ short-term), chemical corrosion resistance, and environmental safety. The smooth inner surface prevents scaling and bacterial growth, ensuring compliance with potable water hygiene standards while minimizing flow resistance.
Structural Design
Stop valves feature precision-molded bodies with specially treated spindle-seat contact surfaces for smooth operation and reliable sealing. Gate valves adopt full-bore streamlined design for unrestricted flow in fully open/closed positions. Both types integrate wear-resistant EPDM sealing rings to prevent leakage and extend service life.
Functional Advantages
- Easy Installation: Compatible thermal fusion connection ensures seamless integration with PPR piping
- Low Maintenance: Excellent weather resistance and material stability reduce long-term upkeep
- Versatile Application: Multiple sizes accommodate varying flow demands in residential, agricultural, and commercial systems
Technical Parameters
- Nominal Diameter: 20/25/32/40/50/63mm
- Pressure Rating: PN20 (cold water)/PN16 (hot water)
- Compatible Media: Cold/hot water, neutral liquids
本介绍总计约450字，严格规避敏感表述，通过强调产品性能参数与应用场景传递核心价值，同时保持专业性与客观性。
