Check valve refers to a valve whose opening and closing parts are circular discs and rely on its own weight and medium pressure to generate actions to block the backflow of the medium.

Three-Piece Check Valve Specifications

Three-Piece Check Valve Curve

Related products: SANITARY NUT CHECK VALVE, TRI-CLAMP Y-BALL CHECK VALVE, SANITARY SPRING CHECK VALVES WITH TRI-CLAMP

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In Y-Ball Check Valve design, pressure forces the ball into the branch of the valve, which allows flow. When the liquid stops and pressure equalizes, the ball drops back into the seat and prevents backflow. If reverse flow occurs, the pressure causes the ball to seal firmly against the seat, which will prevent leakage.

This Tri-Clamp Y-Ball Check Valve provides backflow prevention for stainless steel process lines. Its simple, robust design delivers years of reliable service.

Tri-Clamp Y-Ball Check Valve Specifications

Tri-Clamp Y-Ball Check Valve Applications

Tri-Clamp Y-Ball Check Valve prevents backflow and leakage.

Related products: Stainless steel V-Port Ball Valve, PVDF V-Port Ball Valve, Brass V-Port Ball Valve, PVC V-Port Ball Valve

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The Sanitary Nut Check Valve can prevent the fluid from flowing back and ensure the uniqueness of the fluid flow direction. It can also be used to protect the loss of liquid backflow. The Sanitary Nut Check valves are generally used in food processing, beverages, winemaking, oil refining, cosmetics, pharmaceuticals, and chemical products industries.

Sanitary Nut Check Valve Specifications:

Sanitary Nut Check Valve Applications:

The Sanitary Nut Check Valves are generally used in food processing, beverages, winemaking, oil refining, cosmetics, pharmaceuticals, and chemical products industries.

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Swing check valve is a device for preventing the backflow of media on the pipeline. It is an ultra-thin check valve. This valve has the advantages of simple structure, beautiful appearance, lightweight and easy installation. This wafer swing check valve can be put both vertically and horizontally. This device’s mechanical strength is powered by its mono-bloc disc and stem and combined with body gasket. It is short in length and contains a hoisting eye. This apparatus also has an ISO PN10.16 in between the flanges.

 High-Performance Swing Check Valve Specifications:

High-Performance Swing Check Valve Applications:

Swing check valve is mainly suitable for the water supply system, petroleum, chemical industry, metallurgy, and other industrial sectors, and is most suitable for places with limited installation space.

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Sanitary Spring Check Valves with Tri-Clamp is very useful and has been used in industry and our everyday life. Adamant Valves was found in 2002 and has grown into a global sanitary valves manufacturer and valves supplier. As one of the leading valves manufacturers across the world, Adamant Valves provides customers with high-precision Sanitary Spring Check Valves with Tri-Clamp at a very competitive price.

 Sanitary Spring Check Valves with Tri-Clamp Specifications

Sanitary Spring Check Valves with Tri-Clamp Options

–        Connections: Butt-weld, sanitary clamp, flange, thread, etc. (DIN, IDF, SMS, RJT, 3A standard)

–        Seals and gaskets: EPDM as default, Silicone or Viton (FPM) are available upon request.

–        Pressure range adjustable (by calibrating spring).

Sanitary Spring Check Valves with Tri-Clamp Applications

• Food industries
• Personal care industries
• Pharmaceuticals industries

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The Sanitary Flange Connected Check Valves with Welded Ends is very useful and has been widely used in industry and our everyday life. Founded in 2002, Adamant Valves has become a global sanitary valves manufacturer and valves supplier. As one of the leading valves manufacturers, Adamant Valves provides customers with high-precision Sanitary Flange Connected Check Valves with Welded Ends at a very affordable price.

Sanitary Flange Connected Check Valves with Welded Ends Specifications

Sanitary Flange Connected Check Valves with Welded Ends Options

–        Connections: Butt-weld, sanitary clamp, flange, thread, etc. (DIN, IDF, SMS, RJT, 3A standard)

–        Seals and gaskets: EPDM as default, Silicone or Viton (FPM) are available upon request.

–        Pressure range adjustable (by calibrating spring).

Sanitary Flange Connected Check Valves with Welded Ends Applications

• Food industries
• Personal care industries
• Pharmaceuticals industries

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The Air Blow Check Valve usually works under a variety of high-pressure applications. The air pressure makes the rubber away from the seat. When air pressure is absent, the spring holds the valve closed against the seat and makes the plug back.

• Evacuation and/or drainage lines for evacuation products
• Air stirring products in pipes, storage tanks, and other equipment
• Corrosion resistance of wind lines and equipment 

Sanitary Air Blow Check Valve Description

The Air Blow Check Valve has no restriction of product because of the full unrestricted flow. The three-piece design and the removal of a minimal number of bolts allow service to be performed without the removal of the complete valve from the line.

Sanitary Air Blow Check Valve Technical Parameters

Sanitary Air Blow Check Valve Features

-Clamped body for easy assembly and disassembly

-Conforms to 3A practice 604-05

-Bonded Viton plug for effective, robust sealing

-Backflow of product prevented by simple air to open, spring to close operation

-Can be remotely controlled by controlling the supply of air to the valve

Sanitary Air Blow Check Valve Optional

-EPDM/Viton/Silicone seat and gasket

-1.5″ – 4.5″ (38 mm – 114 mm) sizes air

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Sanitary check valve, also known as “non-return valve”, is designed for use in process piping installations to prevent reverse flow. AV-3C series is a spring check valve with thread ends.

Sanitary Check Valve Specification:

Sizes are available from 1/2″ to 4″ (1/2″, 3/4″, 1”, 1 1/2″, 2″, 2 1/2″, 3″, 4″)

DN15 to DN100 (DN15, DN20, DN25, DN40, DN50, DN65, DN80, DN100)

Valve body can be AISI 304 or AISI 316L.

Valve seat: EPDM, VMQ (silicone), Viton (FPM) for choose from, all complying with FDA 21CFR177.2600.

End connection can be SMS, DIN theads etc. and butt-welded, sanitary clamp, threaded or others upon request.

Max. working pressure: 145psi (10bar)

Opening pressure: 4.5psi/0.3 bar (DN25/1″), 3 psi/0.2 bar (DN32/0.75″ to DN40/1.5″), 1.5 psi/0.1 bar (DN50/2″ to DN100/4″)

Working temperature range: 14 ~ 248°F (-10 ~ 120°C) with EPDM seat.

Surface treatment: Ra 32μin (0.8μm) as default, others available upon request.

Sanitary Check Valve Working Principle

A check valve opens when the pressure below the valve plug exceeds the pressure above the valve plug and the spring force. The valve close when pressure equalization has been achieved. The below picture shows the right installation:

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Sanitary check valve, also known as “non-return valve”, is designed for use in process piping installations to prevent reverse flow. AV-3C series is a spring check valve with tri-clamp ends.

Sanitary Check Valve Specification

Sizes are available from 1/2″ to 4″ (1/2″, 3/4″, 1”, 1 1/2″, 2″, 2 1/2″, 3″, 4″)

DN15 to DN100 (DN15, DN20, DN25, DN40, DN50, DN65, DN80, DN100)

Valve body can be AISI 304 or AISI 316L.

Valve seat: EPDM, VMQ (silicone), Viton (FPM) for choose from, all complying with FDA 21CFR177.2600.

End connection can be butt-welded, sanitary clamp, threaded or others upon request.

Max. working pressure: 145psi (10bar)

Opening pressure: 4.5psi/0.3 bar (DN25/1″), 3 psi/0.2 bar (DN32/0.75″ to DN40/1.5″), 1.5 psi/0.1 bar (DN50/2″ to DN100/4″)

Working temperature range: 14 ~ 248°F (-10 ~ 120°C) with EPDM seat.

Surface treatment: Ra 32μin (0.8μm) as default, others available upon request.

Sanitary Check Valve Working Principle

A check valve opens when the pressure below the valve plug exceeds the pressure above the valve plug and the spring force. The valve closes when pressure equalization has been achieved. The below picture shows the right installation:

	SIZE	A	B	C	D
	1/2″	9.5	25.2	28.5	39.5
	3/4″	15.8	25.2	28.5	39.5
	1″	22.1	50.5	34	48
	1.5″	34.8	50.5	36	48
	2″	47.5	64	36	48
	2.5″	60.2	77.5	36	48
	3″	72.9	91	36	48
	4″	97.6	119	47	54

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Sanitary check valve, also known as “non-return valve”, is designed for use in process piping installations to prevent reverse flow. AV-3W series is a spring check valve with butt-weld ends.

Sanitary Butt-weld Check Valve Specification:

Sizes are available from 1/2″ to 4″ (1/2″, 3/4″, 1”, 1 1/2″, 2″, 2 1/2″, 3″, 4″)

DN15 to DN100 (DN15, DN20, DN25, DN40, DN50, DN65, DN80, DN100)

Valve body can be AISI 304 or AISI 316L.

Valve seat: EPDM, VMQ (silicone), Viton (FPM) for choose from, all complying with FDA 21CFR177.2600.

End connection can be butt-welded, sanitary clamp, threaded, or others upon request.

Max. working pressure: 145psi (10bar)

Opening pressure: 4.5psi/0.3 bar (DN25/1″), 3 psi/0.2 bar (DN32/0.75″ to DN40/1.5″), 1.5 psi/0.1 bar (DN50/2″ to DN100/4″)

Working temperature range: 14 ~ 248°F (-10 ~ 120°C) with EPDM seat.

Surface treatment: Ra 32μin (0.8μm) as default, others available upon request.

Sanitary Butt-weld Check Valve Working Principle

A check valve opens when the pressure below the valve plug exceeds the pressure above the valve plug and the spring force. The valve close when pressure equalization has been achieved. The below picture shows the right installation:

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