Male VFC Bulkhead Fitting with Clear Tubing SKU: TE-10618

The TE-10618 is a male bulkhead fitting designed specifically for volumetric flow controlled (VFC) high volume air samplers. This stagnation tube fitting enables precise pressure measurement connections through sampler shelter walls while maintaining the sealed integrity required for EPA-compliant ambient air monitoring.

Technical Function

The male stagnation tube fitting connects to the volumetric flow controller system to enable accurate pressure readings essential for VFC operation. VFC systems use a critical orifice with predetermined hole diameter to control flow rate, requiring precise pressure measurement to maintain the constant volumetric flow rate through the sampling system.

Complete Assembly

Each TE-10618 includes both the male fitting and clear tubing for immediate installation. The bulkhead design allows secure mounting through shelter walls while providing leak-tight connections essential for maintaining sampling accuracy.

Compatibility

This fitting is compatible with all high volume air samplers equipped with volumetric flow controllers (VFC), including:

• TE-5170V TSP VFC systems with TE-10557TSP volumetric flow controllers
• VFC PM10 particulate samplers using critical orifice flow control
• TE-5170DV-BL digital VFC systems with brushless motors
• TE-6000 Series PM10 VFC samplers

The TE-10618 male fitting pairs with the TE-10617 female VFC fitting for complete pressure measurement system installation.

Installation Notes

Mount the bulkhead fitting through the sampler shelter wall at the designated pressure tap location. Connect the included clear tubing between the fitting and the pressure measurement device (manometer or chart recorder). Typical installation connects black tubing from the VFC blower motor to the pressure fitting on chart recorders for continuous flow monitoring.

EPA Compliance Applications

Essential component for EPA-compliant ambient air quality monitoring using VFC technology. VFC systems maintain predetermined flow rates through NIST-traceable calibrated critical orifices, with motors running wide open while the orifice controls actual sampling flow. Accurate pressure measurement through fittings like the TE-10618 ensures proper system operation and regulatory compliance for TSP, PM10, and PM2.5 monitoring programs.