Counterweight butterfly valve with hydraulic cylinder

• Low pressure loss.
• Opening under low differential.
• Extended range of operating pressures and diameters.
• Butterfly with double eccentricity allowing a reduction in operating torque and a reduction in wear on the seal.
• Ductile Iron Disc FR-GJS-500-7
• Body seat Lined in hard rubber
• EPDM sealing rings
• Epoxy powder coated steel retaining ring
• 316L internal and external bolts
• Steel axle stainless steel
• Bearing sleeve: Bronze
• Bronze bearing system bearings - self-lubricated.
• EPDM seal, inserted into the seat of the wing.
• Body Interior/exterior blue epoxy coating 300 Microns.
• Possible mounting of the lever arm on both sides of the flap.
• Modification of the orientation of the lever arm allowing you to influence the opening or closing of the leaf (depending on the position of the flap).
• Adjustment of the sensitivity of the leaf when opening or closing.
• Oscillating disc with full stroke shock absorber.
• For horizontal pipes (can be supplied for vertical pipes on request when ordering)
• Can be fitted with a closed position switch
• Adjustable damping characteristic

Compliance with standards

• Drilling of connection flanges according to standards EN 1092-2 and ISO 7005-2: -ISO PN 10 or 16 for DN 150 to 1400 - ISO PN 25 for DN 150 to 600
• Face-to-face dimensions according to standards:
• NF EN 558-1 s (except DN 1100),
• ISO 5752 (except DN 1100).

Characteristics< /strong>

• Range: DN 150 to 1400.
• PFA 10, 16, 25.
• Use temperature: +10°C at + 80°C.
• Waterproofing: rate 1 according to DIN 3230-BN standard.

Applications

• Water distribution networks

Tests

• Fully tested manufacturing according to DIN 3230-BN.