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ASCO 390 Series Pressure-Operated Valves

Brand: ASCO

The ASCO Series 390, also known as 8390, are pressure-operated, remote-controlled valves with discs for industrial fluid media.

Pressure operated valves use external air to operate the opening and closing of the valve.

The signal air will create the demand to change the position of the valve.

An anti-water hammer design has fluid entry under the disc for quiet operation. The valves feature long service life in high-cycling applications.

A wide range of piston-type operators (63 - 90 -125 mm diameters) are rotatable through 360° for maximum performance at different minimum pilot pressures.
Features
  • High flow capability
  • Back pressure resistant
  • Maintenance-free actuators
  • Satisfies Pressure Equipment Directive 2014/68/EU, category 1 (DN > 25) or article 4.3 (DN ≤ 25)

Specifications

Brand

Body Material

  • Bronze

Flow

  • From 5.19 to 12 Kv, over 12 Kv

Function

  • 3/2 Normally Closed, 3/2 Normally Open

Maximum Differential, Maximum Operating Pressure

  • 10.3-34.5 bar, Vacuum to 10.3 bar

Media

  • Air, Inert Gas, Hot Water, Light Oil, Water, Steam

Pipe / Port Size

  • 1/2, 3/4, 1, 1-1/4, 1-1/2, 2, DN 25, DN 32, DN 40, DN 50, DN 65, 12 mm, 10 mm

Port Type

  • G ISO 228 / 1-G BSPP, Female NPT

Standards & Regulations

  • IEC 61508, SIL, ATEX, ISO , IEC 60529 (Ingress Protection), IP66

Valve Actuation

  • Pressure Operated, Pneumatic - Air Pilot
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