Check Valve
Wenzhou Deki Valve Co., Ltd., is a professional industrial valve supplier specialized in valve research, design, manufacturing,Our company is well in line with major international standards, such as ANSI/API, BS, DIN, JIS, GB and etc.Our company's main products include: gate valves, butterfly valves, ball valves, check valves, globe valves, plug valves, filters and etc. we have equipped with the state of the art lathe machines, CNCs, and inspection lab for material inspection and valve production and testing.
Why Choose Us
Quality Control
To keep the consistency of our product quality control, we have equipped with the state of the art lathe machines, CNCs, and inspection lab for material inspection and valve production and testing.
Comply with international standards
Our company is well in line with major international standards, such as ANSI/API, BS, DIN, JIS, GB and etc.
Large foreign trade customer base
Our valves and flow control components are exported to all over the world, like Southeast Asia, Middle East, Europe, Russia, North and South America, Africa, and etc.
Our Services
Our well trained team will always keep learning and improving for the lastest knowledge in production and customer service.
Control Flow of Materials
One of the primary advantages of using check valves is that they allow for precise control over the flow of materials. These valves can be adjusted to regulate the flow rate, which is crucial in maintaining the efficiency of industrial processes. Check valves can also isolate different pipeline sections, allowing for repairs or maintenance without disrupting the system.
Prevent Backflow
Another significant advantage of check valves is their ability to prevent backflow. Backflow occurs when fluid or gas flows in the opposite direction, which can cause damage to equipment or even create safety hazards. check valves are designed to prevent backflow by automatically closing when pressure changes occur, ensuring that materials only flow in one direction.
Durability
Gates and check valves are built to withstand harsh industrial environments and can operate under high pressure and temperature conditions. These valves are made from durable materials such as stainless steel, cast iron, and brass, which can withstand corrosion and wear over time. This durability ensures that check valves have a long service life, reducing the need for frequent replacements and maintenance.
Low Maintenance
Gates and check valves require minimal maintenance due to their simple design. These valves typically have fewer moving parts than others, reducing the likelihood of failure or malfunction. Additionally, check valves are easy to disassemble and clean, making them a cost-effective solution for industrial applications.
Types of Check Valves
Large Check Valve
Large check valves, also known as non-return valves, are essential components in various industrial, commercial, and domestic applications. They ensure the safe and consistent downstream flow of diverse materials, including water, oxygen, fuel, acids, bases, sludge, slurry, and hazardous waste.
Mini Check Valve
Mini check valves, or micro check valves, function similarly to their larger counterparts but on a much smaller scale. These valves precisely regulate unidirectional gas or fluid flow in confined spaces, making them ideal for applications requiring meticulous control.
Relief Valve
Relief valves, commonly referred to as safety relief valves, are robust devices designed to withstand chemical corrosion and continuous use. Typically constructed from PVC, stainless steel, brass, or aluminum, these valves are crucial for releasing excess, potentially hazardous pressure from closed-top vessels or piping systems. They remain closed until the set pressure is reached, ensuring safety and system integrity.
Ball Check Valve
Ball check valves use a loose ball as a stopper and are available in iron, plastic, or stainless steel. They regulate fluid flow and come in various types: spring-loaded ball check valves, which feature a stainless steel spring to keep the ball closed; reverse flow ball check valves, which rely on reverse flow to return the ball to its seat and seal the valve; and three-wayball check valves, which use a ball, gate, or globe stopper in the valve’s center to manage flow in multiple directions.
Brass
Brass check valves offer good corrosion resistance and are ideal for plumbing applications and water supply systems.
Bronze
Due to their corrosion resistance, bronze check vavles are suitable for marine applications, offshore platforms, and other corrosive environments.
Iron
Iron check vavles offer a cost-effective option for general-purpose applications. They are commonly used in water and wastewater systems, as well as various industrial processes.
Stainless steel
Stainless steel check valves are durable, corrosion resistant, and suitable for numerous fluids. They are commonly used in chemical processing systems, corrosive environments, and other demanding applications.
Potable Water Systems
The residential check valve applications involve carrying potable water. These valves maintain the integrity of drinking water. They keep water separate from other streams and prevent contamination and backflow. The installation of check valves in such conditions not only keeps the water safe to drink but also effectively regulates its flow.
Water Pumps
Water pumps undergo frequent pressure changes. That’s why they are prone to hammering effects and blockages. Check valves in these pumps relieve these hazards by regulating pressure and preventing backflow. They keep water moving until the air expels from the pump, which otherwise cannot be done by the pump itself.
HVAC Systems
HVAC systems in homes or residential buildings are among the top applications of check valves. They require a coolant to be pumped up at height. Check valves are significant in bringing it by resisting the force of gravity. They also ensure that no fluid mixes up with another stream or back-flows to the primary system.
Irrigation Systems
Brass check valves in irrigation systems perform significant functions. As irrigation involves water dispersal into many streams, check valves suit the system’s needs. They take water to the desired destination along with a safety mechanism. They ensure backflow prevention to the main supply and stop contamination from damaging the equipment or water quality.
The process for obtaining an international shipping quote is quite simple. Add the items of interest to your shopping cart by clicking the "buy now" button, and then continue the order process as if you are buying the item(s). Your credit card will NOT be charged at this point. You'll first receive an email that will list the shipping charges to your country and inform you of any items that cannot be shipped outside the US. You will then be given the option to accept these charges to process the order or decline them which would cancel it. Your credit card will only be charged if you accept the freight.
Our certifications
FAQ
As one of the leading check valve enterprises in China, we warmly welcome you to buy API approved check valve from our factory. All products products used in refinery, power plant, petrol chemical and oil&gas industry are with high quality and competitive price.
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