Spirax-Sarco 1101090 Trap

The Spirax-Sarco 1101090 SIB30/6 is a heavy-duty, 3/4" NPT sealed inverted bucket steam trap engineered for high-pressure industrial applications requiring robust condensate management. Constructed with a stainless steel body and internal components, this inverted bucket steam trap utilizes density-based operation to provide cyclic discharge, efficiently removing condensate and non-condensable gases near steam temperature. Its tamper-proof, fully welded design ensures reliable performance in demanding environments, supporting a maximum operating pressure of 174 psi (12 bar) and temperatures up to 752°F. Designed for in-line horizontal piping, the SIB30/6 mechanism is inherently resistant to water hammer and provides superior longevity compared to thermodynamic alternatives on constant-load drip legs and process equipment. For contractors and technicians, this 3/4 inch NPT steam trap offers a fit-and-forget solution for steam distribution systems where maintaining the steam seal and preventing live steam loss is a critical priority.

• Durable Construction: The 304 stainless steel body and 440B hard-chome internal valve surfaces provide exceptional resistance to erosion and corrosion in high-velocity steam lines.
• Water Hammer Resistance: The inverted bucket mechanism is naturally rugged, making it the preferred choice for systems prone to pressure surges and thermal shock.
• Energy Efficiency: Designed for an immediate positive shut-off, preventing the waste of live steam and optimizing the heat transfer efficiency of the downstream process.
• Tamper-Proof Design: The fully sealed, welded unit eliminates potential leak paths from gaskets and prevents unauthorized internal adjustments in the field.
• Effective Air Venting: Features a small internal vent hole in the bucket to continuously discharge non-condensable gases, preventing air binding in the system.

How do I troubleshoot a Spirax-Sarco SIB30/6 that may have lost its prime?
If the trap fails open and blows live steam, it may have lost its water seal (prime) due to a sudden pressure drop. Close the outlet valve briefly to allow condensate to accumulate and re-submerge the bucket, which should restore the steam trap to its normal cyclic operation.

Can the SIB30/6 be installed in vertical piping?
No, this specific model is designed strictly for in-line horizontal piping configurations. For proper operation, the bucket must remain vertical to respond to the density differences between steam and condensate.

Is the SIB30/6 maintainable or repairable?
The SIB series features a factory-sealed, welded body design. This ensures a tamper-proof and leak-free unit but means that the internal components are not accessible for repair or replacement; if the trap reaches the end of its service life, the entire unit must be replaced.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.