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EDF 3-A Valve

The innovative springless check valve for hygienic applications.

Developed specifically for the US market and certified by the 3-A Sanitary Standards Institute, it guarantees maximum hygiene without the need for maintenance. It guarantees maximum hygiene with no need of periodic maintenance, reliable sealing in all installation positions, including vertical flow downward. Suitable for use with both liquids and steam.

Applications:

Beverage|

Chemical|

Cosmetic|

Food|

Pharmaceutical

Resistant up to 150 or 220°C

No more springs that can break or misfire

No flow obstruction components

No stagnation points

Maximum Hygiene

Only the shutter comes into contact with the product. There are no springs, discs or other components which could contaminate it, this means no contamination and no stagnation point.

Safe closing

Ensured by patented magnetic principle.

Any installation position

It can be installed in horizontal, vertical up and down positions.

Energy saving

Its innovative working principle and design allow for a smooth flow, minimising pressure drop.

Laminar flow

No turbulence.

No periodic maintenance required

Long valve life

Thanks to high chemical resistance of the materials.

Full traceability for all metal components and seals.

Parameter	Value
Product contact materials	Body and flanges: Stainless Steel 1.4404 (AISI 316L) Shutter: 1.4462 (Duplex) – 1.4410 (F53)
Non product contact materials	Magnet: Neodymium
Seals material options	EPDM, VMQ (Silicone), FKM (Viton)
Surface finishes	Internal: Ra µm ≤ 0.8 (standard) up to Ra µm ≤ 0.4 electropolished and passivated (optional) External: Ra µm ≤ 3.2 (standard) up to Ra µm ≤ 0.4 electropolished and passivated (optional)
Dimensions	DN 10 - DN 200 \| 1/2” - 8”
End connection options	WELDING: DIN 11850 / ASME BPE TRI-CLAMP: ASME BPE
Temperature range	-20°C/+150°C (Standard). Up to +220°C (optional)
Operating pressure	PN16 (standard). Further operating pressures on request.
Media	Liquids, gas, steam.
Certificates (on request)	MATERIAL: EN10204:2005 -3.1 O-RING: FDA - Declaration of conformity Surface roughness 3-A ATEX PED EC 1935/2004

Once opened, the valve requires only about 10 mbar to stay in operation.

Installation / Flow Direction	Opening Pressure
HORIZONTAL	30/50 mbar
VERTICAL (Downward Flow)	27/45 mbar
VERTICAL (Upward Flow)	33/55 mbar

Test with water at 20°C (68°F) on horizontal pipes.

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Resources

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EDF 3-A Valve

The innovative springless check valve for hygienic applications.

Applications:

Beverage|

Chemical|

Cosmetic|

Food|

Pharmaceutical

Resistant up to 150 or 220°C

No more springs that can break or misfire

No flow obstruction components

No stagnation points

Advantages