Schubert & Salzer – 8042 GS3 Smart Pneumatic Pressure Regulator

Overview

The Schubert & Salzer Type 8042 GS3 is a smart pneumatic pressure regulator for precise pressure control of steam and gases. Unlike the self-operated Type 8011 GS3 pressure regulator, the Type 8042 accepts external or manual setpoint input, combining a compact valve and controller design in a single unit. Compressed air is required as supply energy. Available in sizes 1/2″ to 6″ with stainless steel (CF8M / 316L cover) or carbon steel (WCB / 316L cover) body options, the valve is rated to 145/580 psi and ANSI #150 and #300.

Three control range actuator variants are available — 1–15 psi, 7–36 psi, and 7–87 psi — to match specific process pressure regulation requirements. Media temperatures range from -14°F to 446°F with special versions available on request. TA-Luft / ISO 15848-1, CRN, and SIL approvals are standard, with optional ATEX non-electrical approval for hazardous area service.

Features & Benefits

• Smart pneumatic pressure regulator accepting external or manual setpoint input — compact integrated valve and controller design
• Suitable for pressure control of steam and gases across a broad range of industrial process applications
• Three control range actuator variants: 1–15 psi, 7–36 psi, and 7–87 psi to match specific process pressure requirements
• Dual body material options: stainless steel CF8M / 316L cover and carbon steel WCB / 316L cover for compatibility with a wide range of media
• Wafer-type body minimizes face-to-face length for compact installation between ANSI #150 or #300 flanges
• Available in sizes 1/2″ to 6″ rated to 145/580 psi and ANSI #150 and #300
• Media temperatures from -14°F to 446°F; special versions available on request
• Stroke limitation accessory available for restricting valve travel to a defined position
• Metal bellows accessory available for zero-emission stem sealing
• TA-Luft / ISO 15848-1 fugitive emissions compliance — standard approval
• Optional ATEX non-electrical approval (II 2G Ex h IIC T6…T1 X Gb; II 2D Ex h IIIC 85°C…350°C X Db) for hazardous area installations
• CRN Certificate, EC and UKCA Declarations of Conformity, and Safety Manual with SIL manufacturer’s declaration available

Technical Specifications

• Size: 1/2″ – 6″
• Pressure: 145/580 psi; ANSI #150; ANSI #300
• Body material: Stainless steel CF8M with 316L cover; Carbon steel WCB with 316L cover
• Media temperature: -14°F to 446°F (special versions available on request)
• Actuator: Pneumatic (compressed air required as supply energy)
• Setpoint: External or manual
• Control ranges: 1–15 psi; 7–36 psi; 7–87 psi
• Connection: Wafer type (installs between flanges)
• Media compatibility: Steam, gases
• ATEX (optional): II 2G Ex h IIC T6…T1 X Gb; II 2D Ex h IIIC 85°C…350°C X Db
• Approvals & Certificates: CRN Certificate, TA-Luft / ISO 15848-1, EC Declaration of Conformity, UKCA Declaration of Conformity, Safety Manual with SIL manufacturer’s declaration

Applications

• Pressure control of steam in heating, process, and energy systems
• Gas pressure regulation in industrial process plants requiring external or manual setpoint adjustment
• Compact pressure regulation installations where integrated valve and controller design minimizes footprint
• Low-emission process plants requiring TA-Luft / ISO 15848-1 fugitive emissions compliance
• Zero-emission pressure regulation applications requiring metal bellows stem sealing
• Hazardous area installations requiring ATEX non-electrical approval
• Applications requiring CRN certification for Canadian pressure vessel and piping compliance
• Applications requiring SIL compliance

Type 8042 GS3 Accessories

• Metal Bellows – Metal bellows stem seal for zero-emission applications requiring enhanced fugitive emissions control.
• Limit Switch – Position feedback accessory providing open/close status signal for process monitoring and control integration.
• Stroke Limitation – Adjustable stroke limiter for restricting valve travel to a defined partial-open or partial-close position.

Documentation