一恒旋转蒸发仪防倒吸缓冲瓶（带单向阀）

评测依据

• review_count：200
• rating_avg：4.4
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• price_range：[300,799]
• dimension：best_value
• sources：["天猫","京东","拼多多"]
• time_range：{"from":"2026-06-26 01:16:41","to":"2026-06-26 01:16:41"}
• intros：{"brand_intro":"上海一恒科学仪器有限公司成立于1997年，是国内知名的实验室环境试验设备制造商。产品涵盖恒温恒湿箱、培养箱、干燥箱及旋转蒸发仪等，以\"一恒\"品牌行销全国。公司注重技术创新和性价比，在中小企业及高校实验室中拥有广泛用户基础。","product_intro":"该防倒吸缓冲瓶采用高硼硅玻璃材质，内置不锈钢弹簧单向阀，结构简单可靠。瓶体为圆柱形，底部设有放液口，方便排出积液。接口为标准磨口，适配一恒及多数国产旋转蒸发仪。产品经过耐压测试，能有效防止真空系统倒吸，保护实验安全，是实验室经济型防倒吸解决方案。","key_specs":["材质：高硼硅玻璃+不锈钢弹簧阀","接口规格：24/29标准磨口","瓶体容积：300ml","适用真空度：0.095MPa","耐温范围：-20℃至150℃","底部放液口：PTFE旋塞"]}
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