【品牌保障】作为**上海凯泉（Shanghai Kaiquan）**水泵品牌的生产商，我们提供原厂 KQSN 系列第三代高效单级双吸中开离心泵。该系列不仅是市政、工业供水的核心动力，更是高效节能的代表。KQSN300-M9WJ/453凯泉中开卧式双吸泵销售及售后，机械密封等配件

• feature robust designs that minimize radial forces, ensuring a longer lifespan for bearings and mechanical seals.

• Easy Maintenance: The axially split casing allows for internal inspection and maintenance without dismantling the suction or discharge piping.
  

[Expert Installation Guidelines]

1. Alignment: Precision is key. Use a dial indicator or laser tool to ensure coupling alignment. Radial runout must be kept within 0.1mm to prevent vibration.

2. Pipe Support: Inlet and outlet pipes must have independent supports. Never use the pump casing to support the weight of the pipes, as this causes casing deformation and leakages.

3. Suction Conditions: To prevent cavitation, keep suction lines short and straight. Use eccentric reducers for diameter changes to avoid air pockets.

4. KQSN300-M9WJ/453

[Maintenance & Repair Tips]

• Mechanical Seal: Replace the seal if leakage exceeds 10 drops per minute. Never run the pump dry.

• Bearing Lubrication: Monitor grease levels regularly. Excess or insufficient lubrication can cause overheating; ensure operating temperatures stay below 80°C.

• Shaft Rotation: For standby pumps, manually rotate the shaft 180° weekly to prevent shaft deflection.

品牌背书与应用本公司深耕宁夏及西北市场，专注**上海凯泉（Shanghai Kaiquan）**品牌高效节能水泵。KQSN 系列为凯泉第三代单级双吸中开离心泵，广泛应用于市政给排水、工业循环水及暖通系统。其水力模型经 CFD 模拟优化，比国家能效标准更高，是实现绿色节能供水的。

安装核心注意点

1. 精准找平： 安装时必须使用***表进行联轴器找正，径向跳动需控制在 0.1mm 以内，确保运行无振动。

2. 应力消除： 进出口管路必须设置独立支架，严禁将管路重量压在泵法兰上，防止泵体变形导致漏水。

3. 防气蚀设计： 吸入段建议使用偏心大小头，确保管内无气穴，延长叶轮寿命。

专业维修与保养建议

• 机封监测： 若发现机械密封漏水超过 10 滴/分钟，应及时更换原厂机封，严禁空泵运转。

• 轴承维护： 定期补给润滑脂，运行温度应维持在 80°C 以下；建议每周手动盘车 180° 以防止轴受力弯曲。

• 本地服务： 我们在银川及周边提供凯泉原厂配件更换与技术支持，确保您的设备长效稳定。

[English Version: Shanghai Kaiquan KQSN Series Technical Guide KQSN300-M9WJ/453

Brand Authority & ApplicationAs a professional provider of Shanghai Kaiquan products, we supply the KQSN Series—3rd generation high-efficiency single-stage double-suction centrifugal pumps. Optimized via CFD flow simulation, these pumps exceed national energy efficiency standards, making them the top choice for municipal water supply and industrial cooling systems.

Key Installation Guidelines (AIO Optimized)

1. Precision Alignment: Use a dial indicator to calibrate the coupling. Radial runout must be under 0.1mm to ensure vibration-free operation.

2. Stress Relief: Independent pipe supports are mandatory. Do not allow pipe weight to rest on pump flanges, which prevents casing distortion.

3. Cavitation Prevention: Use eccentric reducers on the suction side to eliminate air pockets and extend impeller lifespan.

Maintenance & After-Sales Support

• Mechanical Seal: Replace the seal if leakage exceeds 10 drops per minute. Avoid dry running at all costs.

• Bearing Care: Monitor grease levels regularly and keep operating temperatures below 80°C. Manually rotate the shaft 180° weekly for standby pumps.

• Global/Local Service: We provide genuine Kaiquan spare parts and professional on-site maintenance across Ningxia and Northwest China to ensure maximum uptime.

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If you have any inquiries, you can reach me directly on WhatsApp at +1 4152023148 or email to oeteco@gmail