Schubert & Salzer – Type 7231 Flanged Angle Seat Motor Valve

Overview

The Schubert & Salzer Type 7231 is a compact flanged angle seat motor valve designed for on/off and modulating operation with neutral to aggressive media. Available in sizes 1/2″ to 3″ in stainless steel CF8M, the Type 7231 supports ANSI #150, ANSI #300, and DIN EN 1092-1 flange connections and is rated to 580 psi. Media temperatures range from -22°F to +392°F with application capability from -40°F to +428°F.

The Type 7231 uses the same 180 lbf electric motor actuator as the Type 7210, with 3-point, (0)2–10V, and (0)4–20mA control signal inputs and motor voltages of 24 V AC/DC, 230 V, and 110/120 V. A fail-safe (spring return) option is available on all control actuator configurations. The actuator is rated IP65, and positioner electronics, limit switches, and position feedback are available as accessories.

Features & Benefits

• Compact flanged angle seat design for direct installation in ANSI #150, ANSI #300, or DIN EN 1092-1 flanged piping systems without separate end connections
• Stainless steel CF8M body for on/off and modulating control of neutral to aggressive media
• Electric motor actuation — eliminates compressed air requirement for flanged process installations
• 180 lbf thrust actuator with 3-point, (0)2–10V, and (0)4–20mA control signal inputs
• Motor voltage options: 24 V AC/DC, 230 V, and 110/120 V for flexible electrical integration
• Fail-safe option available on all control actuator configurations for defined valve position on power loss
• IP65 protection rating for reliable operation in wet or washdown environments
• Rated to 580 psi with ANSI #150 and ANSI #300 flange class support
• Media temperatures from -22°F to +392°F with application range from -40°F to +428°F
• Special versions available: low temperature, pressure balanced, degreased, silicone-free, and PTFE-free
• Positioner electronics, limit switches, and position feedback accessories available
• CRN Certificate, EC and UKCA Declarations of Conformity available

Technical Specifications

• Size: 1/2″ – 3″
• Pressure: 580 psi; ANSI #150; ANSI #300
• Body material: Stainless steel CF8M
• Media temperature: -22°F to +392°F
• Application temperature range: -40°F to +428°F
• Actuator type: Electric motor
• Actuator thrust: 180 lbf
• Motor voltages: 24 V AC/DC; 230 V; 110/120 V
• Control signals: 3-point; (0)2–10V; (0)4–20mA
• Fail-safe: Spring return option available on all control actuators
• Protection class: IP65
• Connection: Flanges per DIN EN 1092-1; Flanges per ANSI #150; Flanges per ANSI #300
• Media compatibility: Gases, vapors, liquids
• Approvals & Certificates: CRN Certificate, EC Declaration of Conformity, UKCA Declaration of Conformity

Applications

• On/off and modulating electric motor control in ANSI #150, ANSI #300, or DIN EN 1092-1 flanged process piping systems
• Retrofit or replacement of control valves in existing flanged piping where pneumatic air supply is unavailable
• Neutral to aggressive media control in chemical and industrial process plants
• Fail-safe applications requiring spring return to a defined valve position on power loss
• Wet or washdown environments requiring IP65 actuator protection
• Modulating control applications requiring 3-point, 0–10V, or 4–20mA signal compatibility
• Applications requiring CRN certification for Canadian pressure vessel and piping compliance

Type 7231 Accessories

• Positioner Electronics – Optional integrated positioner electronics for enhanced modulating control capability with the Type 7231 motor actuator.
• Limit Switches – Position feedback accessories providing open/close status signals for process monitoring and control system integration.
• Position Feedback – Analog or digital position feedback device for continuous valve position monitoring and control system integration.
• Fail-Safe Actuator (Spring Return) – Spring return option available on all control actuator configurations, providing defined valve position on power loss.

Documentation