铸铁旋启式止回阀

技术要求:
  1. 设计与制造: GB/T 13932
  2. 结构长度: GB/T 12221
  3. 端法兰: GB/T 17241.6
  4. 检验与试验: GB/T 13927

描述

The Cast Iron Swing Check Valve is a flanged non return valve that allows flow in one direction only. The disc swings open with forward flow and closes automatically under gravity and reverse flow, protecting pumps and equipment from backflow. Its full-bore flow path gives low pressure loss, and the cover can be removed for inspection without taking the valve out of the line.

技术规格:
  • 压力等级: PN10 / PN16
  • 尺寸范围: DN50 – DN600
  • 适用介质: Water, sewage, oil, steam
  • 工作温度: -10°C to 200°C (metal seat) / 80°C (rubber seat)
Main Parts and Materials:
部件名称材料
阀体、阀盖灰铸铁HT200 / 球墨铸铁QT450
阀瓣Cast Iron / Ductile Iron
阀座环Brass / EPDM
摇臂销轴不锈钢2Cr13
垫片NBR/石墨
产品主要特点:
  1. 自动工作: No external power or control needed to prevent backflow.
  2. Low Head Loss: Disc swings fully clear of the flow path when open.
  3. Reliable Seating: Copper or rubber seat rings for tight closure.
  4. 顶部检修: Bolted cover for in-line inspection and disc maintenance.
  5. 安装灵活: 水平或垂直(向上流动)管线。
应用:

适用于 水泵出水管, 供水, Drainage & Sewage以及 供暖系统. Specifically suited for protecting pumps and preventing reverse flow when pumps stop.

其他信息

标准

GB