Your Professional Valve Supplier！
Zhejiang Dunyun Industrial Co., Ltd. is located at No. 1 Dunyun Road, Modern Environmental Protection Equipment Industrial Park, Zhuji City, the hometown of Xi Shi, in the Yangtze River Delta Economic Circle.We mainly produce various copper valves such as "Dunyun" brand water supply systems, central air conditioning systems, heating systems, gas systems, special ball valves, gate valves, globe valves, temperature control valves, gas valves, exhaust valves, filters, underfloor heating water collectors, as well as new aluminum-plastic composite pipes, and other plumbing accessories.
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![Union Gas Filter Valve]()
Union Gas Filter ValveItem number: DY623view more
1.Nominal pressure:1 .6Mpa
2.Working medium:Gas for civilan use,natural gas,LPG
3.Working temperature:-20°C≤t≤100°C
4.Thread conform to ISO 228 -
![Universal Gas Valve]()
Universal Gas ValveItem number: 607-4view more
1.Nominal pressure:1.6Mpa
2.Working medium: Gas for civilian use, natural gas, LPG
3.Working temperature: -20°C≤ t ≤ 100°C
4.Thread conform to ISO 228 -
![Full-opening Brass Gate Valve]()
Full-opening Brass Gate ValveItem number:DY101view more
1.Nominal pressure:1.6Mpa
2.Working medium:Water.Oil.Steam
3.Working temperature:-20°C≤ t ≤ 120°C
4.Thread conform to ISO 228 -
![Brass Ball Valve Lever Handle Female]()
Brass Ball Valve Lever Handle FemaleItem number:DY201view more
1.Nominal pressure:1.6Mpa
2.Working medium: Water，Oil，Steam
3.Working temperature:-20°C≤ t ≤ 120°C
4.Thread conform to ISO 228 -
![Female Y Strainer]()
Female Y StrainerItem Number : DY501view more
The Female-Female Y strainer is a key component specially designed for installation in various water distribution applications, including drinking water distribution networks and pipeline water systems. -
![Brass Swing Check Valve Female]()
Brass Swing Check Valve FemaleItem Number: DY503view more
1.Nominal pressure:1.6Mpa
2.Working medium: Water, Oil
3.Working temperature:-20°C≤ t ≤ 180°C
4.Thread conform to ISO 228 -
![Brass Return Water Lock Shield Angle Control Valve]()
Brass Return Water Lock Shield Angle Control ValveProduct name: Brass Union PPR Male Female Return Water Lock Shield Angle Structure Control Valveview more
Material: Brass ( Hpb59-1 / CW617)
Pressure: 1.6Mpa
Support：OEM / ODM
Sample: Support
Packing: Export OPP Bag... -
![Brass 3-Way Thermostatic Radiator Valve]()
Brass 3-Way Thermostatic Radiator ValveProduct name: Brass 3-Way Thermostatic Radiator Valveview more
Material: Brass ( Hpb59-1 / CW617)
Pressure: 1.6Mpa
Support：OEM / ODM
Sample: Support
Packing: Export OPP Bag + Carton -
![Ferrule-Type Manual Thermostatic Control Valve Assembly]()
Ferrule-Type Manual Thermostatic Control Valve AssemblyProduct name: Ferrule-Type Manual Thermostatic Control Valve Assemblyview more
Material: Brass ( Hpb59-1 / CW617)
Pressure: 1.6Mpa
Support：OEM / ODM
Sample: Support
Packing: Export OPP Bag + Carton -
![Manual Brass Thermostatic Valve With Press PPR PB]()
Manual Brass Thermostatic Valve With Press PPR PBProduct name: Manual Brass Thermostatic Valve with Press PPR PBview more
Material: Brass ( Hpb59-1 / CW617)
Pressure: 1.6Mpa
Support：OEM / ODM
Sample: Support
Packing: Export OPP Bag + Carton -
![Manual Radiator Angle Valve With BSP NPT Thread]()
Manual Radiator Angle Valve With BSP NPT ThreadProduct name: Manual Radiator Angle Valve with Female Male Union Thread Compression Connectorview more
Material: Brass ( Hpb59-1 / CW617)
Pressure: 1.6Mpa
Support：OEM / ODM
Sample: Support
Packing: Export OPP Bag +... -
![Manual Brass Thermostatic Radiator Valve]()
Manual Brass Thermostatic Radiator ValveProduct name: Manual Brass Thermostatic Radiator Valveview more
Material: Brass ( Hpb59-1 / CW617)
Pressure: 1.6Mpa
Support：OEM / ODM
Sample: Support
Packing: Export OPP Bag + Carton
Rich Experience
As we are Actuated Valve Specialists with over 20+ years of experience in valve automation, we have the tools, products, and experience to make sure that your automated valve is durable and has a high life cycle.
Quality Control
All inspections are handled by qualified, experienced personnel aligned with the specifications of each project to fully satisfy our customers and surpass their expectations with a high degree of environmental consciousness to the total satisfaction of our customers.
Our Certifications
We have passed ISO9001 quality management system certification，as well as various product hygiene licenses.
Valve - Overview
A valve is a mechanical device that controls the flow of fluids or gases in a pipe or system by opening, closing, or partially obstructing a passageway. Valves can stop, throttle (regulate), direct, or mix fluid flow, and are essential for ensuring safety and efficiency in a wide variety of applications, from simple household plumbing to complex industrial processes.
Product Specification
We offers the following product specifications：
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Item Number : |
DY630 |
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1.Standard: |
CJ/T 447-2014 |
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2.Working Temperature: |
-10°C≤ t ≤ 40°C |
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3.Max Auto Self-Closing Pressure: |
8KPa±2KPa |
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4.Min Auto Self-Closing Pressure: |
0.8KPa±0.2KPa |
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5.Auto Closing Time: |
t≤3s |
Initiating or ceasing fluid flow
Adjusting flow rates to throttle within the system
Regulating pressure levels
Redirecting flow from one pathway to another
Restricting flow to balance the system or prevent over-pressurization
Preventing the reverse flow of fluid
Halting flow in the event of system failure
Enhancing safety by relieving pressure or vacuum within the piping system.
Types of Valve
Ball Valve
Predominantly equipped with quick-acting 90-degree turn handles, these valves use a ball to control flow to provide easy on-off control. Generally accepted by operators to be faster and easier to operate than gate valves.
01
Butterfly Valve
Using a compact design, the butterfly valve is a quick-acting rotary motion valve ideal for tight spaces thanks to its wafer type design. Butterfly valve bodies are offered in many different configurations.
02
Check Valve
Used to prevent backflow, these valves are typically self-activated allowing the valve automatically opens when media passes through the valve in the intended direction and close should flow reverse.
03
Gate Valve
As one of the most common valve types, gate valves use linear motion to start and stop the flow. These are typically not used for flow regulation. Instead, they used in the fully open or closed positions.
04
Globe Valve
Globe valves are typically applied in modulating control operations. Typically avaialable in three body types, T-body (as shown above), Y-Pattern, and Angle body.
05
Material of Valve
Stainless steel: Stainless steel is a popular valve material. Its high oxidation and corrosion resistance, durability and superior mechanical properties make it suitable for numerous applications. Stainless steel valves do not rust and are excellent in steam, water, moist air, chloride and food and beverage applications.
Carbon steel: Carbon steel costs less and is easier to manufacture than stainless steel. However, it does not possess the high corrosion-resistance quality of stainless steel. Carbon steel valves are excellent for applications that do not involve moisture. The extra carbon in carbon steel improves its abrasion resistance. Carbon steel valves also have satisfactory heat resistance.
Brass: Brass is often considered as a compromise between stainless steel and carbon steel. It is less expensive than carbon steel and is great for applications involving fuels, air, water and oils. However, its corrosion and heat resistance are lower than that of stainless steel, and more than that of carbon steel.
Monel: Monel is a nickel superalloy that has superb corrosion resistance. It performs excellently in seawater, salt and other saline environments. It is also resistant to certain chemicals. Monel valves are often used in concentrated corrosive environments.
Inconel: Inconel has a very high resistance to oxidation and corrosion. This austenitic nickel chromium-based alloy can also withstand extreme pressures and heat.
Titanium: Titanium is a highly corrosion-resistant material. It is also highly resistant to most chemicals and thrives well in corrosive and reactive environments. Also, titanium valves can withstand extremely high temperatures. These valves are commonly used in nuclear power plants.
Application of Valve
Manufacturing & Process: Found in chemical plants, refineries, biopharmaceutical manufacturing, and food and beverage production to control and regulate fluids and gases.
Utilities: Vital for water and wastewater processing, controlling water flow and pressure in municipal systems.
Power Generation: Used to manage the flow of water, gas, and steam in power plants, often requiring high-pressure systems.
Oil and Gas: Essential for the transportation and processing of crude oil, gas, and refined products.
Fire Suppression: Used to control the flow of water in fire suppression systems.
Certifications
Package & Delivery
Package: Standard export package or Custom
Delivery: By air express, by sea
FAQ
We're professional valve manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale cheap valve from our factory.
