General information

The concentric double flanged butterfly valves Series S13 have been designed, generally, for industrial applications where dimensional problems are important and where the disc needs to be protected.

The vulcanized sleeve system in the body avoids the risk of detachment / dislodgement of the sleeve body in the case of a valve position at the network edge. Their bolting design, on both sides, allows the dismantling of only one part of the installation while maintaining the other one under pressure and operational. They also facilitate the assemblies requiring a temporary isolation of some parts of the network in settlements such as pumping stations, warehouses, naval installations, etc.

Field of use

Different materials and coatings used for butterfly valves and liners can have a large response to many situations in the industrial area of sewage water.

It provides an effective and reliable solution in conditions of work as may be pumping stations, water treatment, desalination, irrigation, etc.

Range

Concentric double flanged butterfly valve Series S13 from DN40 to DN1200 (consult us for other diameters).

- Bodies: flanged type in ductile iron EN GJS-400-15 + epoxy powder 250 microns red (RAL 3009).

- Maximum working pressure:

• 16 bar
• PFA 25 bar up to DN300 (consult us for other diameters)

- Flange dimensions:

• PN10 and 16
• Consult us for PN25

- Discs:

• Ductile iron EN GJS-400-15 + Epoxy coating in black 250 microns
• CF8M Stainless Steel
• Contact us for other materials

- Sealing materials in the body type vulcanized nitrile. (please consult us for other types)

- Operation:

• Hand lever type MN : DN40-200mm
• Hand lever type MR : DN150-300mm
• Gear-box + handwheel : DN40-1200mm
• Motorized: - Electrical motor: Auma, Bernard, … - Pneumatic actuators, …

Given our wide range of materials, coatings and available drives, we remain at your disposal to look for a solution adapted to your requirements.

References

Codification

• Position 6 (disc) : A = St Steel CF8M, F = Ductile Iron + black epoxy
• Position 7 (actuator) : L = hand lever MN, U = hand lever MR, B = gearbox with handwheel, M = motorized
• Position 10 (Elastomer) : M = vulcanized nitrile, N = nitrile

C = distance between flanges

Concentric double flanged butterfly valve in ductile iron

Concentric double flanged butterfly valve in stainless steel

Added values

Compliance with standards

Company: designer and manufacturer works according to ISO 9001 by AENOR n° ES 0780 / 1997

Product: complies to the NF EN1074-1 and DVGW standards (up to DN700). Rest of the range in process.

Dimensions :

NF EN 593: Metallic butterfly valves

NF EN 558-1: Face to Face dimensions series 20

EN ISO 5752: Metal valves for flanged pipe network. Table 5 short series

API 609: Butterfly valves Flanged, Lugged and Wafer

NF EN 1092-2: Flange connections to the piping material

Materials: NF EN1503: Valves. Materials for bodies, bonnets and covers

Operation:

EN ISO 5210 : Multi-turn actuator to valve

EN ISO 5211 : Part-turn actuator to valve

Assembling between flanges: ISO PN10 or PN16, DIN 2632 PN10 or PN16, EN-1092 PN10 or PN16, NFE 29222 PN10 or PN16

Identification : EN ISO 5209: Marking

Hydraulic Tests:

EN ISO 5208: Pressure (Ratio A-No leakage)

EN 12 266-1: Sealing (Ratio A-No leakage)

In accordance with the German rules DVGW n° 6201CM0237.

Traceability

Traceability system for concentric double flanged butterfly valves allows since the departure from the factory to the last day of life of the valve to obtain information relating to the product origin and quality both of coatings and materials, manufacturing, inspection and hydraulic tests results.

From the moment the order is in the computer system, starts the program of manufacturing. A serial number is automatically assigned to this valve. Manufacturing sheet will be marked with this number. This sheet will contain all information about manufacture and inspection of the valve. At the end, two stickers with the number of identification will be placed in the body and in the top flange of the valve.

Assembling

The trial sheet assembly is identified with the internal number. This sheet has as many labels as valves to assemble. This label identifies the person responsible for the mounting and the possible problems during the assembling. The document contains the components of the valve if certification 3.1 is required by the customer.

Hydraulic tests

Label identifying the inspector and the results of the tests. Any remark produced during the tests and the torque is shown.

Foundry marking

Body and disc: manufacturer and type of material.

Marking (identification/labels)

Hydraulic characteristics

Headloss Δp inside the valve is expressed with the flow coefficient Kv which is the flow going through the valve at a temperature 20ºC and generating a headloss of 1 bar.

For the water we obtain the simplified calculation below:

Kv = Q ∆P

with Q in m³/h and Kv in m³/h, Δp in bar

Flow coefficient Kv (in m3/h) according to the opening angle of the disc:

Mechanical characteristics

Necessary torque, in Nm, to close the disc at ΔP. These torques have been obtained with the standard range, water at 20°C and EPDM seats.

Materials and coatings

DN40-200

DN250-500

DN600-1200

Dimensions and mass

Upper flange

Operating with MN and MR type hand lever

The operation by hand lever allows the disc to rotate between 0 and 90°. There are two types of manual control lever: the MN type and the MR type.

The MN type is the hand lever referenced for our range of Wafer, Lug and Flanged valves. The lever allows seven positions of the butterfly between 0° to 90° with an anchorage by spring.

The MR type is a 0° to 90° regulation hand lever. This product is not referenced in our range, please consult us.

Manual operating with handwheel and gearbox MDV type

Screwing Choice

Tapped holes for the flanges assembly will be :

• Metric for the PN standards
• Whitworth type for the NSI 150 standards0

For other tappings, consult us.

Packing