GGG50 Composite Exhaust Valve for Fluid Pipeline Systems

GGG50 Composite Exhaust Valve Mainly Used In Fluid Pipeline Systems

This is a composite exhaust valve, which is mainly used in fluid pipeline systems such as water supply and drainage, municipal pipelines, and water conservancy projects to solve the problem of gas accumulation in the pipeline and ensure the efficient and stable operation of the system. The core functions and structures are disassembled:

Key role: "Exhaust Guardian" of pipelines

Exhaust air: When the pipeline is filled with water for the first time/in long-term operation, the dissolved gas in the water and the residual gas in the pipeline will form air blockage, resulting in poor water flow and idling of the water pump. The exhaust valve can automatically exhaust air to allow the water to flow smoothly and improve the efficiency of water delivery (for example, the municipal water supply main pipe can reduce the risk of "water hammer" after exhaust and protect the pipeline).

Exhaust biogas/harmful gas: In the sewage pipeline network, organic matter decomposes to produce biogas and other gases, and the accumulation will squeeze the water flow space and corrode the pipeline. The exhaust valve can discharge these gases in time to avoid pipeline bursting and odor leakage.

Structure & Principle

Valve body (blue main body):

The material is mostly ductile iron (anti-corrosion spray treatment), which is pressure-resistant and corrosion-resistant, and suitable for buried/open-air environments. The bottom flange connects the pipeline for easy installation.

The surface castings (such as "DN80, DN150, DN200" and "PN10, PN10") are specification parameters: DN refers to the nominal diameter (pipe adaptation size), and PN refers to the pressure rating (the pressure range that can be tolerated).

Exhaust assembly (top metal mesh + valve cover):

Metal mesh (porous structure): When the gas rises, it enters the exhaust cavity through the mesh holes, while blocking the water flow from spraying out (to prevent water from splashing out of the valve body when the pipeline water pressure fluctuates).

There is a float + sealing mechanism in the valve cover: when the pipeline is full of water, the float floats up to close the exhaust port to prevent water leakage; when the pipeline is inlet/stored, the float drops and the gas is discharged from the exhaust port.

Application scenario

Municipal water supply: urban water supply mains, community secondary water supply pipelines, installing exhaust valves can avoid "gas blockage" and ensure stable water pressure for high-rise residents.

Sewage pipe network: sewage treatment plant water inlet pipes, urban drainage mains, timely discharge of methane to prevent pipeline corrosion and explosion.

Water conservancy projects: irrigation channels, reservoir water pipelines, exhausting air can improve water delivery efficiency and avoid water flow interruption.

Simply put, this is the "breathing valve" of the pipeline, which automatically responds to the "air intake - exhaust - water stop" requirements by mechanical structure, silently guarding the safety of the pipeline network and reducing the risk of pipe burst and water outage~

Who we are

SND has been producing and selling metal goods for about 20 years.By using manufacturing techniques including sand casting, lost wax casting, lost foam casting, and precision machining, the company has been supplying goods made of materials like cast iron, steel, stainless steel, aluminum, etc. Additionally offered are surface finishing and assembly services.

Our company has successfully created products in a variety of industries, including automotive, rail transportation, agricultural machinery, chemical, energy, electricity, water, air compressor, and construction, thanks to our consistent efforts over the past few years.

Our factories' ISO9001-accredited quality control systems guarantee a consistent and dependable quality for each and every component.
Spectrometer, ultrasonic, magnetic, permeability, elongation, tensile/yield strength, and other inspections are carried out as part of routine production procedures.

SND Foundry have been specializing in the production and sales of manhole cover and gully grating, valves, pipe & pipe fitings and metal castings products nearly 20 years. It is located in Wu'an Industrial Park, Handan City, Hebei Province. The park is the largest mechanical casting spare parts processing industrial park in Handan, with a complete supporting industry chain and convenient transportation.

SND has fully passed the ISO9001 quality management system certification. During the production process, it implements a number of strict detailed standards and conducts full-process quality control. Our company has well-equipped chemical laboratories and physical performance laboratories. A complete set of testing equipment such as Direct Reading Spectrometer, Metallographic Microscope, Rockwell Hardness Tester, Universal Material Testing Machine, Non destructive testing(NDT), and Three-dimensional Coordinate Measuring instrument can be used to effectively control chemical composition and ensure mechanical performance.

Company Mission:
Committed to creating high-quality products and service, creating a century enterprise trusted by customers, respected by society, the most valuable and internationally influential
Work Attitude: Responsibility Pragmatism Professional