SPIRAX SARCO · SEPARATORS
Spirax Sarco S7 Carbon Steel Separator DN65 to DN350 – Baffle Type Steam & Air Separator
Spirax Sarco S7 carbon steel baffle separator for steam, air & gas systems. DN65-DN350, PN16-PN40. Available at PC Engineering India.
Overview
The Spirax Sarco S7 is a carbon steel baffle-type separator designed for efficient removal of entrained liquids from steam, compressed air, and gas systems. It is engineered to protect downstream equipment such as control valves, heat exchangers, and turbines from damage caused by wet steam or liquid carryover.
The separator operates by directing the flow through internal baffles, which force entrained moisture droplets to coalesce and collect at the bottom of the unit. For steam applications, the S7 requires an FT-series ball float steam trap and an air vent for condensate drainage. For air and gas service, a CA-series ball float liquid drainer with a balance line is recommended.
Manufactured in compliance with EN 13445:2002 (Unfired Pressure Vessels) and the European Pressure Equipment Directive (PED), the S7 is a reliable choice for industrial plants requiring consistent steam quality and system protection.
Key Features
- Baffle-type design ensures high separation efficiency for entrained liquids
- Carbon steel construction suitable for standard industrial environments
- Wide size range: DN65 to DN350
- Multiple flange standards: EN 1092 PN16/PN40, ASME B16.5 Class 150/300, JIS/KS 20K
- Designed for steam, air, and gas applications
- Material certification to EN 10204 3.1 available as standard
- Full data dossier available on request
- Non-maintainable design — no internal spare parts required
Specifications
| Parameter | Value |
|---|---|
| Sizes | DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350 |
| Body Material | Carbon Steel |
| Flange Standards | EN 1092 PN16/PN40, ASME B16.5 Class 150/300, JIS/KS 20K |
| Design Pressure | 14 to 25 bar g |
| Design Temperature | 198°C to 225°C (depending on pressure rating) |
| Max Cold Hydraulic Test Pressure | 21.8 to 40.8 bar g |
| Vent Connection | Screwed BSP (EN) / NPT (ASME) |
| Drain Connection | Screwed BSP (EN) / NPT (ASME) |
| Compliance | EN 13445:2002, PED |
| Certification | EN 10204 3.1 (standard) |
Applications
- Steam distribution and header lines in process plants - Compressed air systems requiring moisture removal - Industrial gas pipelines - Protection of control valves, flowmeters, and heat exchangers - Textile, pharmaceutical, food processing, and chemical manufacturing facilities - Power plants and refineries
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