慢速关闭止回阀

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慢速关闭止回阀

Type：300X

Subtitle：Water Hammer Elimination Valve

Our 300X slow closing check valve is specifically designed for water supply systems to prevent water hammer effects while ensuring reliable backflow prevention. The hydraulic damping system enables controlled valve closure in 5-60 seconds (adjustable), effectively eliminating pressure surges in pipelines.

标签：水锤止回阀

类别：液压控制阀

工作条件建筑施工, 污水处理厂, 水厂

产品概览

我们的 300X slow closing check valve is specifically designed for water supply systems to prevent water hammer effects while ensuring reliable backflow prevention. The hydraulic damping system enables controlled valve closure in 5-60 seconds (adjustable), effectively eliminating pressure surges in pipelines.

主要功能

Adjustable Closing Speed - 5-60 second range via damping control
Silent Operation - Eliminates valve slam noise
Low Head Loss - Streamlined disc design (Kv=1.2)
Maintenance-Free - Stainless steel internal components
Bubble-Tight Seal - Resilient seat (NBR/EPDM)

Working Principle

流向: Water pushes disc open
Flow Stopping: Disc begins controlled closing
Damping Phase: Hydraulic cylinder regulates closing speed
Full Closure: Seals securely before reverse flow occurs

应用

✔ Pump Discharge Lines - Prevent pump check valve slam
✔ Water Treatment Plants - Protect filter systems
✔ HVAC Chilled Water - Safeguard heat exchangers
✔ Fire Protection Systems - Maintain steady pressure
✔ Municipal Water Networks - Protect aging pipelines

竞争优势

特点	300X Valve	标准止回阀	旋启式止回阀
Closing Control	Adjustable 5-60s	Instant (<1s)	1-3s uncontrolled
水锤	Eliminates	Causes	May cause
Head Loss	Low (Kv=1.2)	中型	High
噪音水平	Silent (<30dB)	Loud slam	Moderate noise

中型

水

工作条件

建筑施工, 污水处理厂, 水厂

总结

The 300X slow closing check valve provides superior water hammer protection through its innovative hydraulic damping system, offering:Controlled Deceleration – Adjustable closing profileSystem Protection – Prevents pressure surges up to 25barMaintenance Savings – 10+ year service life typical

产品参数

尺寸范围	DN50-DN1200 (2"-48")
压力等级	PN10-PN25 (Class 150-300)
车身材料	Ductile Iron (epoxy coated), WCB, 304SS
圆盘材料	304SS + NBR/EPDM sealing
Closing Time	5-60 seconds (field adjustable)
Max Working Temp	80°C (176°F) standard / 120°C (248°F) optional