Schubert & Salzer – 8037 GS3 Ex-Proof Sliding Gate Motor Valve

Overview

The Schubert & Salzer Type 8037 GS3 is a motor control valve specifically designed for use in potentially explosive atmospheres, rated per EG 94/9 directive for Ex zones 1, 2, 21, and 22. Unlike other GS3 motor valves that offer ATEX as an optional non-electrical add-on, the Type 8037 is built from the ground up for hazardous area service with flameproof and increased safety enclosure construction — Ex de (ia) IIC T6/T5 or T4 for gas zones and Ex tD (iaD) A21 IP66 T80°C for dust zones. The IP66 protection class provides enhanced ingress resistance beyond IP65 for added reliability in demanding explosive environments.

Available in sizes 1/2″ to 10″ with stainless steel (CF8M / 316L cover) or carbon steel (WCB / 316L cover) body options, the Type 8037 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 1 kN, 2.5 kN, and 5 kN are available with a wide voltage range of 24–230 V AC/DC.

Features & Benefits

• Purpose-built for potentially explosive atmospheres — rated per EG 94/9 directive covering Ex zones 1, 2, 21, and 22
• Gas protection class: II 2G Ex de (ia) IIC T6/T5 or T4 — flameproof and increased safety enclosure for IIC gas group (hydrogen service)
• Dust protection class: II 2D Ex tD (iaD) A21 IP66 T80°C — for explosive dust environments
• IP66 protection rating — higher ingress resistance than the IP65 standard on other GS3 motor valves
• Three thrust ratings: 1 kN, 2.5 kN, and 5 kN — the highest maximum thrust in the GS3 third-party motor valve series
• Wide voltage input range: 24–230 V AC/DC for flexible electrical integration in hazardous area installations
• Dual body material options: stainless steel CF8M / 316L cover and carbon steel WCB / 316L cover
• 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
• Wafer-type body for compact installation between standard flanges in hazardous area piping
• Analog stroke feedback, position electronics, limit switch, and metal bellows accessories available
• 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 316L cover; Carbon steel WCB with 316L cover
• Media temperature: -76°F to 662°F (special versions available on request)
• Actuator: Third-party electric motor
• Actuator thrust: 1 kN; 2.5 kN; 5 kN
• Voltage: 24–230 V AC/DC
• Protection class: IP66
• Ex zones: Zones 1, 2, 21, and 22
• Gas Ex classification: II 2G Ex de (ia) IIC T6/T5 or T4
• Dust Ex classification: II 2D Ex tD (iaD) A21 IP66 T80°C
• Connection: Wafer type (installs between flanges)
• Media compatibility: Steam, liquids, gases
• Approvals & Certificates: CRN Certificate, TA-Luft / ISO 15848-1, EC Declaration of Conformity, UKCA Declaration of Conformity

Applications

• Modulating and on/off control in Ex zones 1, 2, 21, and 22 where an explosion-proof electric motor valve is required
• Hazardous gas zone installations requiring IIC gas group rating (including hydrogen service)
• Explosive dust zone installations requiring T80°C dust surface temperature classification
• High-pressure electric motor valve service up to 1,450 psi and ANSI #600 in explosive environments
• Chemical, petrochemical, oil and gas, and industrial process plants requiring Ex-rated electric actuation
• Low-emission hazardous area installations requiring TA-Luft / ISO 15848-1 fugitive emissions compliance
• Applications requiring CRN certification for Canadian pressure vessel and piping compliance
• Applications requiring continuous analog stroke position monitoring in hazardous areas

Type 8037 GS3 Accessories

• Metal Bellows – Metal bellows stem seal for zero-emission applications requiring enhanced fugitive emissions control in hazardous area service.
• Position Electronics – Integrated electronics for enhanced position control and signal processing with the Type 8037 GS3 explosion-proof motor actuator.
• Analog Stroke Feedback – Continuous analog position feedback signal for real-time valve stroke monitoring in hazardous area installations.
• Limit Switch – Position feedback accessory providing open/close status signal for process monitoring and control integration.

Documentation