Single Orifice Air Valve DN40-DN300

The Cast Iron Single Orifice Air Valve is designed to efficiently manage air release in various fluid systems, preventing air accumulation that can hinder flow and cause operational inefficiencies. Constructed from durable cast iron, this valve offers exceptional strength and resistance to corrosion, making it ideal for use in water treatment, fire protection systems, and industrial applications.

Featuring a robust single orifice design, this air valve automatically expels trapped air during fluid flow, ensuring optimal performance and system reliability. Its precision-engineered components provide a reliable seal, minimizing leaks and maximizing efficiency. Easy to install and maintain, this valve is suitable for both new installations and retrofits.

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Product Description

Application Areas of Single Orifice Air Valve

Single Orifice Air Valves are widely used across various industries, including:

Water Treatment: Utilized in pump systems, water supply pipelines, and wastewater treatment facilities to prevent air accumulation and ensure stable fluid flow.
Fire Protection Systems: Used in fire protection pipelines to ensure timely air expulsion, enhancing system reliability and response speed.
Heating, Ventilation, and Air Conditioning (HVAC): Applied in heating and cooling systems to prevent air blockages, improving system efficiency and comfort.
Industrial Pipelines: Effectively manage gas and liquid flow in various industrial pipelines, ensuring equipment operates smoothly.
Agricultural Irrigation: Prevents air from entering irrigation systems, ensuring continuous water flow and improving irrigation efficiency.
Chemical Industry: Controls gas and liquid flow in chemical production and transportation, preventing air mixing and ensuring safety and stability in processes.

Maintenance and Care of Single Orifice Air Valve

To ensure optimal performance and extend the lifespan of Single Orifice Air Valves, regular maintenance and care are recommended. Specific measures include:

Regular Inspection: Periodically check the valve's appearance for any signs of damage or corrosion, particularly focusing on seals and connection points.
Cleaning: Keep the valve and its surrounding area clean by regularly removing dust and dirt to prevent interference with normal operation.
Function Testing: Conduct regular function tests to ensure the valve operates effectively, checking its response time and sensitivity.
Lubrication: Apply lubrication to moving parts as needed, based on the operating environment, to ensure smooth operation.
Component Replacement: Replace worn-out seals or other consumable parts promptly to maintain the valve's functionality.
Maintenance Records: Keep records of maintenance activities, including dates and details, to track the valve's usage and maintenance history.

Technical Parameter

Part & Materials

No	Part	Material
1	Body	Ductile Iron GGG50
2	Ball	Stainless Steel
3	Bracket	Plastice
4	Sealing Gasket	NBR
5	Bonnet1	Ductile Iron GGG50
6	Bonnet2	CS
7	Bolt/Nut	CS

Dimensions(mm)

DN	A	B	D		C		B		n-d		b		f
			PN10	PN16	PN10	PN16	PN10	PN16	PN10	PN16	PN10	PN16
DN40	99	175	150		110		84		4-19		19		3
DN50	99	175	165		125		99		4-19		19		3
DN65	119	175	185		145		119		4-19		19		3
DN80	133	195	200		160		133		8-19		19		3
DN100	154	195	220		180		154		8-19		19		3
DN125	184	240	250		210		184		8-19		19		3
DN150	210	240	285		240		210		8-23		19		3
DN200	265	280	335		295		265		8-23	12-23	20		3
DN250	319	360	405		350	355	319		12-23	12-28	22		3
DN300	370	360	460		400	410	370		12-23	12-28	24.5		4

Technical Data

No	Description	Specification
1	Nominal Dia	DN40-DN300
2	Nominal Pressure	PN10&PN16
3	Valve Design Standard	EN1074-4:2000
4	Flange Standard Conformity	EN1092-2
5	Expoxy Coating	Epoxy powder coating with minimum thickness of 250 microns inside and outside.
6	Working Temperature(Max)	80℃

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