Throttle Master Needle Valves "L Series"

The L Series "Life Series" needle valve is uniquely engineered with a virgin PTFE (Teflon) tip designed specifically for high-frequency on/off cycling—ideal for applications where the valve is opened and closed daily throughout the product's lifecycle. Unlike traditional needle valves, which are typically set once and left in position, the L Series is built for repetitive actuation without wear or galling, offering exceptional low-torque operation, long-term bubble-tight sealing, and easy field maintenance—making it the preferred choice for demanding, high-cycling environments.

PTFE On/Off seal is easily replaced in the field, no tools required
Exceptional Low Torque on/off operation
Needle finish, SPI/SPE No. 1. Bubble tight, low torque shutoff long term performance.
All injection molded, rugged design and construction
24 Pitch metering thread. 20% Finer metering control. Excellent Linearity of Flow.
Needle Stem is PTFE sealed for excellent chemical resistance & high purity.
Integrally designed panel mounting, no fasteners required, mounts to panel thicknesses from 1/16" to 1/2".
No elastomers (O-Rings), metals or lubricants, no corrosion, no contamination.