EDF 3-A valve

The innovative springless check valve for hygienic applications.

Specially designed for the US market and officially approved by the 3-A Institute.

Maximum hygiene with no maintenance required. Tightness guaranteed in all installation positions, even vertical with downward flow.

The patented YGROS technology sets new standards in the plant engineering world, thanks to its magnetic principle that replaces the function of the traditional spring. Suitable for fluids and steam.

Resistant up to 220°C.

The ideal solution for applications in pharmaceutical, chemical, cosmetics and food & beverage industries.

BENEFITS AT A GLANCE

  • 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 possible: 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 turbulences
  • Maintenance free
  • Longer valve life: thanks to high chemical resistance of the materials

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    TECHNICAL DATA

    Product contact materials

    Body & Flanges: Stainless steel 1.4404 (AISI 316L)

    Shutter: (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)

    End connection options

    WELDING: DIN 11850 / ASME BPE

    TRI-CLAMP: ASME BPE

    Temperature range

    -40°C/+150°C (Standard). Fino a +220°C (optional)

    Operating pressure

    PN16 (standard).

    Further operating pressures on request

    Media

    Liquid, Gas, Steam

    Certifications (on request)

    MATERIAL: EN10204:2005 – 3.1

    FDA: O-Ring 

    Surface roughness

    3-A

    ATEX

    PED

    EC 1935/2004

    All product contact materials and seals are fully traceable

    YGROS EDF: STANDARD OPENING PRESSURES

    Installation

    Flow direction

    Opening pressure

    HORIZONTAL lines

    		 

    30/50 mbar

    VERTICAL lines

    Top to bottom

    27/45 mbar

    VERTICAL lines

    Botom to top

    33/55 mbar

    Once opened, the required pressure to keep the shutter fully open is about 10 mbar.

    PRESSURE DROP CHART

    Graph reading applies to water at 20° C (68°F) installed in horizontal pipes

    GENERAL CATALOGUE

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