Micro Resistance Ball Check Valve Low Pressure Drop Stainless Steel Flanged for Sewage Wastewater China Manufacturer

Micro Resistance Ball Check Valve

Essence: An automatic valve with a sphere as the opening and closing element, which pushes the sphere open through the forward flow of the medium, and when the medium flows in the reverse direction, the self weight of the sphere or the pressure of the medium resets and seals. It uses a through flow channel and a rolling design of the sphere to achieve ultra-low flow resistance, and has both check and energy-saving functions.

Core features:

Low flow resistance and high efficiency: The full diameter flow channel is unobstructed, with minimal pressure drop loss, suitable for high flow and low flow rate scenarios;

Quick sealing response: The ball rolling valve has a sensitive closing action, and the sealing surface fits tightly, reducing the risk of water hammer impact and leakage;

Durable and maintenance free: The spheres are mostly made of stainless steel or engineering plastics, which are wear-resistant, corrosion-resistant, and have high long-term stability during operation.

Typical applications: Pipeline systems that require low energy consumption, high reliability, and backflow prevention, such as water supply and drainage, chemical engineering, HVAC, etc.

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Wide applicability
Flexible and convenient installation
Lightweight and Durable Structure
Noise reduction and shock absorption capability
Efficient sealing performance
Ultra low flow resistance design

Wide applicability

Wide applicability
01
Covering diameters from DN50 to DN2000, suitable for drainage, chemical, HVAC and other scenarios, especially for large-diameter sewage pipelines;
02
Automatic sensing of fluid pressure opening and closing, no external power required, suitable for unmanned or remote control systems.

Flexible and convenient installation

Flexible and convenient installation
01
Supports horizontal, vertical, and inclined installation, with a rubber ball density close to water and a suspended state not affected by gravity, suitable for complex pipeline layouts;
02
Short stroke design (approximately 1/4~1/5 of the diameter), without the need for additional operating space, making it easy to retrofit old systems.

Lightweight and Durable Structure

Lightweight and Durable Structure
01
The valve body adopts thin-walled casting technology, which is 40%~60% lighter in weight than similar valves, while maintaining high strength and compressive strength;
02
Core components such as spheres and valve seats are made of stainless steel or wear-resistant coatings, which can withstand high-speed fluid impact and corrosion, and have a lifespan of up to 15 years.

Noise reduction and shock absorption capability

Noise reduction and shock absorption capability
01
Built in adjustable damping device or spring buffer mechanism, which reduces the impact force of the sphere when closed, effectively suppressing water hammer effect and pipeline vibration;
02
The rubber coated sphere is in flexible contact with the valve seat, reducing the impact sound of closing the valve and reducing operating noise by more than 60% compared to traditional valves.

Efficient sealing performance

Efficient sealing performance
01
The sealing surface is made of rubber coated hollow steel balls or engineering plastic rubber balls, which are tightly attached to the valve seat to ensure zero leakage sealing and are suitable for cold water, hot water, and weakly corrosive media;
02
The diameter of the rubber ball is usually 1.3 times the diameter, which can maintain reliable sealing even after wear and extend its service life.

Ultra low flow resistance design

Ultra low flow resistance design
01
Adopting a full bore flow channel and a spherical rolling opening and closing structure, the resistance of fluid passing through is extremely low, and the pressure drop loss is reduced by more than 30%, significantly improving the system's energy efficiency;
02
Streamlined channels reduce turbulence and avoid local head loss, especially suitable for high flow and low velocity scenarios.

Main Component Materials

Part Name	valve body	valve disc	spring	valve seat
material	Cast iron, ductile iron, cast steel	Cast copper, stainless steel	stainless steel	Copper, stainless steel

Performance Specifications & Dimensions

Nominal Pressure PN

1.0/1.6/2.5
Shell F

Px1.5
Sealing Pressure

Px1.1
Medium

Water and weakly corrosive fluids
Temperature (℃)

0~80℃

Nominal Diameter DN(mm)	L	H	H1
40	140	200	88
50	150	215	98
65	170	225	108
80	180	235	118
100	190	280	130
125	200	290	148
150	210	310	172
200	230	350	210
250	250	415	240
300	270	450	264
350	290	480	297
400	310	550	324
450	330	585	351
500	350	640	379
600	390	720	434
700	430	780	491
800	470	840	549
900	510	990	600
1000	550	1050	655

Note: The pressure range is 1.6MPa~2.5MPa. The above data is for reference only. Please consult the company's sales department for details.

Valve Application

Oil & Gas Transportation

Oil and gas transportation involves multiple modes such as pipelines and ships, and is the core link of the energy supply chain.
Chemical Raw Material Control

The control of chemical raw materials covers the entire process of mining, storage, and production, ensuring safety and process stability.
High Temperature SteamPipeline in Power System

High temperature steam pipelines are the core of energy transmission in power systems, supporting the efficient operation of thermal and nuclear power plants.
Other Industries

Valves control fluids in multiple industries such as new energy and electronics, ensuring safe and efficient production.