What “Zero Static” Actually Means
A dead leg is any pocket in a process line where fluid can sit without being swept along by the main flow. In a validated biopharmaceutical process, a dead leg is a place where contamination can take hold and where cleaning and sterilization cycles are least reliable. A zero static valve is engineered specifically to remove that pocket at the point where a bleed or sample connection meets the main line.
Fluid Line Technology’s Sanitary Zero Static Bleed & Sample Valves are built to ASME BPE compliance and cGMP standards specifically for applications where cleanliness, traceability, and zero contamination are non- negotiable.
Tee Inline vs. Tee Angle Configurations
The zero static tee inline design provides direct, flush access to the main process line, which keeps the sampling or bleed point in line with flow and minimizes any disruption to the main stream. The zero static tee angle design is built for system configurations that require an angled orientation, offering the same dead-leg-free performance where a straight inline connection is not practical.
Handle Options and Pressure Rating
Zero static valves are available with a solid handle for standard use, rated up to 150 psi, matching the pressure class used across Fluid Line Technology’s broader sanitary bleed valve and sanitary sample valve lines.
CIP/SIP Compatibility and Material Traceability
Zero static valves support clean-in-place and steam-in-place cycles and are available with clamp, autoweld, and custom fitting connections. Every valve ships with full material traceability, meaning MTRs are available by heat number to support validation files, with certificates of compliance provided as standard documentation.
When to Choose Zero Static Over a Standard Bleed or Sample Valve
Choose a zero static design when the line is validated for cGMP production and dead legs are not an acceptable risk, when product recovery matters enough that stagnant fluid pockets would affect yield, or when regulatory or customer audit requirements specifically call out dead-leg-free design. For less critical utility or non-product-contact lines, a standard bleed or sample valve is often sufficient and more cost-effective.
Frequently Asked Questions
Zero static tee bleed and sample valves eliminate dead legs and stagnant fluid zones at the bleed or sample point, reducing contamination risk and product loss in cGMP biopharmaceutical processes.
The tee inline design provides direct, flush access to the main line. The tee angle design serves system configurations that require an angled orientation, while maintaining the same dead-leg-free performance.
Zero static valves are rated up to 150 psi.
Yes. Full MTRs are provided by heat number with every valve, supporting validation and audit requirements.