Slow Closing Check Valve

Hydraulic control valve is a kind of automatic control valve which opens and closes and regulates by utilizing the medium's own pressure, and is widely used in urban water supply and drainage system, fire-fighting water supply, industrial circulating water and water supply of high-rise buildings and other working conditions. The valve can be operated without external power, and is suitable for a variety of media such as clean water, weak acid and alkaline water, seawater and so on. According to different functions, it can be equipped with a variety of control accessories, such as pressure reduction, pressure holding, pressure relief, slow closure check, flow control, etc., to realize the effect of pressure stabilization, waterproof hammer, energy saving, and prolonging the life of pipeline network and equipment. Hydraulic control valves have compact structure, sensitive response, reliable sealing, and can maintain stable operation under complex working conditions, which is the indispensable core equipment in modern fluid control system.

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products

Slow Closing Check Valve

Model: 300X

Subtitle：Water Hammer Elimination Valve

Tags:Water Hammer Elimination Check Valve

Classification:Hydraulic control valves

Working conditions:construction work, waterwork, water treatment plant

Product Overview

300X slow-closing check valve is a kind of functional hydraulic control valve specially used in water supply and drainage system, which is widely used in high-rise buildings, domestic water supply, fire-fighting pipeline network and municipal water supply projects. The valve is mainly applied to clear water and neutral liquid and other media, in the pump outlet as a check and water hammer protection device. Its working principle is to control the opening and closing of the main valve through the pilot valve, which can be opened smoothly when the pump is started and closed slowly with delay when the pump is shut down, effectively avoiding water hammer and pressure impact, and protecting the safety of pipeline network and equipment. Advantages of the product include sensitive action, smooth closure, preventing noise and vibration, reasonable structure, easy installation and maintenance, and good sealing performance and durability. 300X slow-closing check valve's main function is to prevent backflow, inhibit the impact of water hammer, to ensure the safe and stable operation of the system, is to replace the traditional check valve and muffler check valves of the ideal equipment, widely used in water supply systems in need of backflow prevention and water hammer protection. It is widely used in the water supply system which needs backflow prevention and water hammer protection.

Main characteristics

Adjustable closing speed - controlled by damping, adjustable from 5 to 60 seconds

Silent operation - eliminates valve closing noise

Low head loss - streamlined valve design (Kv=1.2)

Maintenance free - stainless steel internal components

Hermetic seal - resilient seat (NBR/EPDM)

Working Principle

Flow: Water pushes valve open

Disconnect: the valve starts to close in a controlled manner.

Damping phase: hydraulic cylinder regulates closing speed

Fully closed: shut down before backflow occurs

Applicable working conditions

Pump discharge line - prevents pump check valve from closing

Water treatment plants - protection of filtration systems

HVAC Chilled Water - Protecting Heat Exchangers

Fire Protection System - Keeps Pressure Stable

Municipal Water Supply Network - Protecting Aging Pipes

Competitive advantages

specificities	300X Valve	Standard Check Valves	Swing Check Valve
Shutdown control	Adjustable 5-60 seconds	Instantaneous (<1 second)	1-3 seconds uncontrolled
water hammer	eliminating	there are	there are
Loss of head	Low (Kv=1.2)	center	your (honorific)
noise level	Quiet (<30dB)	Loud crash	moderate noise

Medium of use

Water/hot water

working condition

construction work, waterwork, water treatment plant

summarize

The 300X Slow Closing Check Valve utilizes an innovative hydraulic dampening system to provide superior water hammer protection with features that include:Controlled deceleration - Adjustable closing curveSystem protection - prevents pressure fluctuations up to 25 barLow maintenance - typical life expectancy of more than 10 years

Product Parameters

Nominal diameter	DN50-DN1200 (2"-48")
Nominal pressure	PN10-PN25 (Class 150-300)
Valve Material	Ductile iron (epoxy coated), WCB, 304SS
Valve material	304SS + NBR/EPDM seals
Closing time	5-60 seconds (field adjustable)
Maximum working temperature	Standard Temperature 80°C (176°F) / Optional Temperature 120°C (248°F)