Thermodynamic Steam Traps
Product
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Material
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Pressure/Temperature Limits
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Sizes and Connections
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Stainless steel AISI 316L | PMA: 16 bar g @ 50°C, TMA: 450°C @ 8 bar g | 1/4", 3/8", 1/2" wih Screwed BSPor NPT | ||
Stainless steel AISI 316L | PMA: 16 bar g @ 50°C, TMA: 450°C @ 8 bar g | ½" sanitary clamp, ½" BSP or NPT connections | ||
Stainless steel ASTM A743 Gr. CA 40 F (with ENP finish) | PMA: 63 bar g @ 100°C, PMO: 32 bar g, TMA: 400°C @ 42 bar g | ½" and ¾" screwed BSP or NPT connections | ||
Stainless steel BS 970 420 S37 | PMA: 16 bar g, PMO: 10 bar g, TMA: 350°C | ¼" swagelock outlet / BSP inlet connections | ||
Stainless steel ASTM A743 Gr. CA 40 | PMA: 25 bar g @ 300°C, PMO: 16 bar g | 1/2", 3/4", 1" screwed BSP or NPT | ||
Stainless steel ASTM A743 CA-40 | PMA: 40 bar g @ 100°C, TMA: 400°C @ 32 bar g | DN15, DN20, DN25 flanged ASME (ANSI) Class 150 and 300 | ||
Stainless steel ASTM A743 Gr. CA 40 F | PMA: 63 bar g @ 100°C, PMO: 42 bar g, TMA: 255°C | ½" LC and ½" screwed BSP or NPT connections | ||
Steel ASTM A350 LF2 Class 1 | PMA: 51 bar g @ 37.8°C, TMA: 427°C @ 28 bar g, PMO: 42 bar g | ½", ¾", 1" socket weld ends | ||
Stainless steel ASTM A743 Gr. CA 40 | PMA: 63 bar g @ 100°C, PMO: 42 bar g, TMA: 400°C | ½", ¾" screwed BSP or NPT | ||
Stainless steel AISI 420 | PMA: 63 bar g, PMO: 42 bar g, TMA: 425°C | ¼", ½", ¾", 1" screwed BSP or NPT | ||
Steel EN 10213-2 G17 CrMo5-5+QT | PMA: 98.1 bar g @ 300°C, PMO: 62 bar g @ 482°C | DN15, DN20, DN25 flanged EN 1092 PN100 | ||
Steel ASTM A217 WC6 | PMA: 103 bar g @ 93°C, PMO: 62 bar g @ 482°C | DN15, DN20, DN25 flanged ANSI Class 300, 600 | ||
Alloy steel ASTM A182 F22 | PMA: 250 bar g @ 300°C, PMO: 220 bar g, TMA: 550°C | ½", ¾", 1" flanged/socket weld/butt weld connections | ||
Stainless steel AISI 420 | PMA: 63 bar g @ 120°C, PMO: 42 bar g, TMA: 400°C | ¼" screwed BSP or NPT connections | ||
Carbon steel 1.0619+N / ASTM A216 WCB | PMA: 100 bar g @ 50°C, PMO: 46 bar g @ 425°C | ½", ¾", 1" flanged/socket weld/screwed connections | ||
Stainless steel 1.4308 / ASTM A351 CF8 | PMA: 100 bar g @ 50°C, PMO: 46 bar g @ 450°C | ½", ¾", 1" flanged/socket weld/screwed connections |

Thermodynamic Steam Traps
The "Thermodynamic Steam Traps" offered by Spirax Sarco combine advanced engineering and high-quality materials, making them ideal for diverse steam system applications. Constructed with premium stainless steel grades such as AISI 316L and ASTM standards, these steam traps ensure exceptional durability and corrosion resistance, suitable for harsh industrial environments. Unique features include compatibility with EU Pressure Equipment Directives and food-grade certifications, highlighting their versatility for pharmaceutical, clean steam, and food-grade applications. These traps are designed with various size options, ensuring compatibility with numerous piping configurations like BSP or NPT connections. Their high-pressure handling capabilities—ranging up to 63 bar at specific temperature limits—alongside their compact and efficient designs, make them indispensable for optimizing steam systems' efficiency, reducing waterlogging, and ensuring reliable condensate removal. Spirax Sarco's commitment to innovation, precision engineering, and adherence to global quality standards establishes these traps as a reliable choice for steam system professionals.