Schubert & Salzer – 8026 GS3 Cryogenic Sliding Gate Control Valve
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Overview
The Schubert & Salzer Type 8026 GS3 is a cryogenic sliding gate control valve with integrated positioner, engineered for modulating and on/off control of cryogenic fluids at temperatures down to -328°F. Specifically designed for service with hydrogen, nitrogen, oxygen, and carbon dioxide, the Type 8026 is the low-temperature specialist in the GS3 sliding gate control valve series. Available in sizes 1/2″ to 4″ in stainless steel CF8M body with 316L cover, the valve is rated to 145/580 psi and ANSI #150 and #300, with wafer-type body for compact flanged installation.
The integrated positioner is compatible with the Schubert & Salzer Type 8049 digital positioner and Type 8047 pneumatic/electro-pneumatic positioner, with NAMUR standard positioner mounting also available. TA-Luft / ISO 15848-1 fugitive emissions compliance, CRN certification, and SIL compliance are standard approvals, with optional ATEX non-electrical approval for hazardous area service.
Features & Benefits
- Cryogenic service capability down to -328°F — the lowest temperature rating in the Schubert & Salzer sliding gate valve series
- Purpose-built for cryogenic fluids including hydrogen, nitrogen, oxygen, and carbon dioxide
- Integrated top-mounted positioner standard — compatible with Type 8049 digital positioner and Type 8047 pneumatic/electro-pneumatic positioner
- Stainless steel CF8M body with 316L cover — material selection suited for cryogenic temperature service
- Wafer-type body minimizes face-to-face length for compact installation in cryogenic flanged piping
- Available in sizes 1/2″ to 4″ rated to 145/580 psi and ANSI #150 and #300
- NAMUR standard positioner mounting available for alternative positioner configurations
- 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…530°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″ – 4″
- Pressure: 145/580 psi; ANSI #150; ANSI #300
- Body material: Stainless steel CF8M with 316L cover
- Media temperature: Down to -328°F
- Actuator: Integrated top-mounted positioner (standard); NAMUR standard positioner mounting available
- Connection: Wafer type (installs between flanges)
- Media compatibility: Hydrogen, nitrogen, oxygen, carbon dioxide, cryogenic fluids
- ATEX (optional): II 2G Ex h IIC T6…T1 X Gb; II 2D Ex h IIIC 85°C…530°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
- Cryogenic modulating and on/off control of hydrogen, nitrogen, oxygen, and carbon dioxide at temperatures down to -328°F
- Liquid nitrogen and liquid oxygen flow control in industrial gas and cryogenic process systems
- Hydrogen service in fuel cell, storage, and distribution applications
- Carbon dioxide control in food and beverage, pharmaceutical, and industrial applications
- Cryogenic process plants requiring TA-Luft / ISO 15848-1 fugitive emissions compliance
- Hazardous area cryogenic installations requiring ATEX non-electrical approval
- Applications requiring CRN certification for Canadian pressure vessel and piping compliance
- Applications requiring SIL compliance
Type 8026 GS3 Accessories
Positioners
- Type 8049 Digital Positioner – Digital positioner for the Type 8026 GS3 in 2-wire and 4-wire configurations. Available variants include Ex-proof explosion-proof, IO-Link, and integrated process controller (IPC) versions.
- Type 8047 Pneumatic & Electro-Pneumatic Positioner – Pneumatic and electro-pneumatic positioner in 2-wire and Ex configurations. Also available with NAMUR standard mounting.
Additional Accessories
- Limit Switch – Position feedback accessory providing open/close status signal for process monitoring and control integration.
- Position Feedback – Analog or digital position feedback device for continuous valve position monitoring.
- Manual Override – Allows manual operation of the valve independent of pneumatic supply for maintenance or emergency use.
- Pilot Valve – Solenoid pilot valve for pneumatic actuation control of the Type 8026 GS3.
