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HYDRAULIC OPERATED NEEDLE VALVE NGL

Image
ngl_hydraulic_operated_500_500

Range:

DN 100 – 1600
PN 10 - 16 - 25 – 40

The Hydraulic Operated NEEDLE VALVE NGL Valves is
generally installed in Hydropower plants, flood 
control structures, irrigation facilities and free
discharge draining of dams or reservoirs.

Hydraulic actuator solutions:
• Single acting hydraulic piston with counterweight 
• Double acting hydraulic piston

Applications: Water Hydro Irrigation Industry

FEATURES

• Performance and design according to EN1074-5
• Face to Face dimension according to EN 558 e Series 15
• Flanges drilling in according to EN 1092-2 ISO 7005-2
• Hydraulic test in  accordance with the prescriptions EN 1074 1 and 2, ISO 5208 and EN 12266  leak Rate A
• Marking  according EN 19
• Full range of cylinder to avoid cavitation
• Hydraulic cylinder to maintain the main valve in closed position
• Counterweight connected to the hydraulic cylinder, sized to allow automatic opening of the valve under the heaviest condition

MATERIALS

• Body ductile iron GJS500-7 EN 1563
• Shaft: AISI 420 
• Shutter: AISI 304
• Seal: Elastomer EPDM
• Bush: Bronze CuSn12
• Cilinder: AISI 304 (optional)
• Counterweight: Carbon Steel epoxy coated

CORROSION PROTECTION

• Body and valve disc epoxy powder coated in every part in accordance with EN14901 layer thickness min. 250 μm