Schubert & Salzer 8038 GS3 HS Stepper Motor Sliding Gate Valve

Overview

The Schubert & Salzer Type 8038 GS3 is a high-resolution, high-speed stepper motor sliding gate valve — the fastest motor actuator in the Schubert & Salzer product range. Unlike the third-party motor valves in the GS3 series, the Type 8038 uses a Schubert & Salzer designed stepper actuator with high-precision control electronics, achieving a positioning accuracy of ±0.2% even at a stroke of just 6 mm. The rugged metal actuator body is configurable via software and can optionally be equipped with a super capacitor-based fail-safe feature for reliable valve positioning on power loss.

Available in sizes 1/2″ to 10″ with stainless steel (CF8M / 316Ti cover), carbon steel (WCB / CF8M cover), and Alloy C276 body options, the Type 8038 is rated to 145/580 psi, 1,450 psi, and ANSI #150, #300, and #600. Media temperatures range from -76°F to 662°F with special versions available on request. Thrust ratings of 2 kN and 5 kN are available with a wide input voltage of 100–240V (50/60 Hz) or 24V AC/DC. The actuator is rated IP67 and supports both wafer-type and threaded connection configurations.

Features & Benefits

• Fastest motor actuator in the Schubert & Salzer product range — high-speed stepper motor designed and engineered by Schubert & Salzer
• High-precision control electronics deliver positioning accuracy of ±0.2% at a stroke of just 6 mm
• Optional super capacitor-based fail-safe feature for reliable valve positioning on power loss — no mechanical spring or external energy storage required
• Configurable via software — actuator settings adjustable for diverse process control requirements
• IP67 protection rating — highest ingress protection in the GS3 motor valve lineup
• Three body material options: stainless steel CF8M / 316Ti cover; carbon steel WCB / CF8M cover; Alloy C276 — for aggressive to highly corrosive media
• Thrust ratings of 2 kN and 5 kN with wide voltage input: 100–240V (50/60 Hz) or 24V AC/DC
• Wafer-type and threaded connection options for installation flexibility
• Broad size and pressure range: 1/2″ to 10″, up to 1,450 psi and ANSI #600
• Media temperatures from -76°F to 662°F with special versions available on request
• Metal bellows accessory available for zero-emission stem sealing
• TA-Luft / ISO 15848-1 fugitive emissions compliance — standard approval
• CRN Certificate, EC and UKCA Declarations of Conformity available

Technical Specifications

• Size: 1/2″ – 10″
• Pressure: 145/580 psi; 1,450 psi; ANSI #150; ANSI #300; ANSI #600
• Body material: Stainless steel CF8M with 316Ti cover; Carbon steel WCB with CF8M cover; Alloy C276
• Media temperature: -76°F to 662°F (special versions available on request)
• Actuator: Schubert & Salzer high-resolution stepper motor (control actuator or 3-point actuator)
• Positioning accuracy: ±0.2% at 6 mm stroke
• Actuator thrust: 2 kN; 5 kN
• Voltage: 100–240V (50/60 Hz); 24V AC/DC
• Fail-safe: Optional super capacitor-based fail-safe feature
• Protection class: IP67
• Connection: Wafer type; Threaded
• Media compatibility: Steam, liquids, gases
• Approvals & Certificates: CRN Certificate, TA-Luft / ISO 15848-1, EC Declaration of Conformity, UKCA Declaration of Conformity

Applications

• High-precision modulating control requiring ±0.2% positioning accuracy at very short strokes
• High-speed process control applications requiring the fastest available motor actuator response
• Applications requiring super capacitor fail-safe for reliable positioning on power loss without mechanical spring return
• Aggressive and highly corrosive media service requiring Alloy C276 body construction
• High-pressure modulating control up to 1,450 psi and ANSI #600
• Submerged or high-washdown environments requiring IP67 actuator protection
• Low-emission process plants requiring TA-Luft / ISO 15848-1 fugitive emissions compliance
• Applications requiring CRN certification for Canadian pressure vessel and piping compliance
• Process applications requiring software-configurable actuator parameters

Type 8038 GS3 Accessories

• Metal Bellows – Metal bellows stem seal for zero-emission applications requiring enhanced fugitive emissions control.
• Position Electronics – Integrated electronics for enhanced position control and signal processing with the Type 8038 GS3 stepper actuator.
• Analog Stroke Feedback – Continuous analog position feedback signal for real-time valve stroke monitoring and control system integration.
• Limit Switch – Position feedback accessory providing open/close status signal for process monitoring and control integration.
• Fail-Safe Feature (Super Capacitor) – Optional super capacitor-based fail-safe providing reliable valve positioning on power loss without mechanical spring or external energy storage.

Documentation