Home » Products » Midland-ACS

Rotork Midland-ACS DN3 Series Solenoid Operated Valves

The Rotork Midland-ACS DN3 Series is a range of 316L stainless steel ball-seated hydraulic solenoid pilot valves specifically engineered for precise control of ultra-high-pressure hydraulic systems in severe industrial environments. Designed as a miniature solution for space-constrained installations requiring reliable leak-tight performance, this series delivers consistent on/off flow control with exceptional corrosion resistance and high-pressure capability. With a balanced internal piloting system and lever mechanism, the DN3 Series enables low-powered operators to switch at extreme pressures, making it a trusted solution for both hazardous and non-hazardous site conditions in oil, gas, petrochemical, and other high-integrity process applications requiring hydraulic actuation control.

Details

Features

  • 1.316L Stainless Steel Construction: Exceptional corrosion resistance for harsh chemical, marine, and offshore environments, with wetted parts in stainless steel/ceramic for extended service life

  • 2.Ball-Seated Design: Stainless steel seat and ceramic ball ensure leak-tight shut-off even at ultra-high pressures, reducing fluid loss and reducing system efficiency

  • 3.Ultra-High Pressure Rating: Operates reliably up to 1140 bar(16,534psi) depending on operator type, suitable for the most demanding hydraulic applications

  • 4.Balanced Internal Piloting System: Enables low-powered solenoids to switch the valve at high pressures, reducing energy consumption while maintaining performance

  • 5.O-Ring Interface Mounting: Direct mounting to 1/4" NPT ported subplate as standard, or manifold mounting to reduce pipework, fittings, weight, and space

  • 6.Modular Design: Allows direct mounting to larger pilot-operated DN5 valves, increasing flow capacity up to 200L/min for scalable hydraulic control solutions

  • 7.Easy Maintenance: Dismountable without disturbing pipework by removing just 4 bolts, minimizing system downtime and contamination risks

  • 8.Multiple Fluid Compatibility: Suitable for mineral oils, water glycols, methanol, fresh water, natural gas, and nitrogen for versatile application flexibility

  • 9.Low Power Consumption: Efficient operation for energy savings in remote installations

  • 10.Hazardous Area Certification: Available with ATEX/IECEx approvals for Zones 1 & 2 (Gas Groups IIA, IIB, IIC)

  • 11.Wide Temperature Range: Standard -20°C to +60°C, with low-temperature option (-50°C to +60°C) for extreme environments


Associated Products 

Midland-ACS Associated Models

Regulators & Solenoid Valves – Cross Reference

1. Regulator Series (Pressure / Filter Regulators)

3500 Series – Standard Regulators

3500 Series: Pressure Regulators

3525 Series: Filter Regulators

3550 Series: Stainless Steel Filter Regulators (316L)

3575 Series: High Flow Filter Regulators

Typical Models:

4PRNSV082A

4FRASV122A

4REGSN121

4500 Series – Flow Regulators

4500 Series: Stainless Steel Flow Regulators

2REGSN122

2FRMSV122A

Other Pressure Control Units:

2PS3SV072

2PS3SL072

2. Solenoid Valve Series

67 Series – Direct Acting 3/2 Solenoid Valves

67 Series: 3/2 Direct Acting Solenoid Valves, 316L, Ex-proof

Typical Models:

DN03‑2221A41K6BA

DN03‑5322A41EBA

70 Series – High Pressure / High Temp Direct Acting Valves

70 Series: 3/2 Direct Acting Solenoid Valves (enhanced version)

1500 Series – Pilot Operated Solenoid Valves

1500 Series: 3/2, 5/2 Pilot Operated Valves, NACE, -50°C to +180°C

1500 Series with Solenoid Pilot

1600 / 1650 / 1750 Series – Pilot Operated Valves

1600 Series: Spring return pilot valves

1650 Series: With manual override

1750 Series: Double coil, high flow pilot valves

Explosion‑proof Solenoid Valves

5325M24‑AM1P4

5325M24PAM1P4

7325M24‑AM1P4

7325M24PAM1P4

8325M21‑SC2B

8325M21‑EC2B


Pictures show



Application area

能源

化工

矿业