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Rotork Midland-ACS 67 Series Solenoid Operated Valves

The Rotork Midland-ACS 67 Series is a range of 316L stainless steel direct-acting 3/2 solenoid valves specifically engineered for precise actuator control in severe industrial environments. Designed to deliver maximum internal and external protection against liquids and gases, this series excels in oil, gas, petrochemical, and other high-integrity process applications requiring reliable on/off or diverting flow control. With a compact footprint and robust construction, the 67 Series combines ultra-fast response times with versatile operation modes, making it a trusted solution for both hazardous and non-hazardous site conditions.

Details

Features

  • 1.316L Stainless Steel Construction: Exceptional corrosion resistance for harsh chemical, marine, and offshore environments, ensuring long-term reliability

  • 2.Direct-Acting 3/2 Valve Design: Provides reliable control of pneumatic actuators with normally closed (NC), normally open (NO), or diverter (universal) functions

  • 3.Hazardous Area Certification: II 2 G Exd IIC T6 (-50°C ≤ Ta ≤ +40°C) and optional T4 (-50°C ≤ Ta ≤ +80°C) dual-rated for Zones 1 & 2 (Gas Groups IIA, IIB, IIC)

  • 4.High Ingress Protection: IP67 as standard (NEMA 6 equivalent), with IP68 option available for third-party approval

  • 5.Versatile Port Sizes: 1/4", 3/8", and 1/2" NPT connections for seamless integration with standard industrial pneumatic circuits

  • 6.Dual Operation Modes: Spring return (monostable) and manual reset (bistable) options for flexible system integration and fail-safe requirements

  • 7.Ultra-Fast Response: 75–100 ms actuation speed for rapid actuator positioning, outperforming many competing models

  • 8.SIL2 Capable: In-house certification for Safety Integrity Level 2 applications, meeting strict functional safety requirements

  • 9.Multiple Seal Options: EPDM and Nitrile (NBR) standard, with custom materials available for specific media compatibility

  • 10.Compact & Lightweight: Space-saving design ideal for installation in confined areas without compromising performance


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