
Convenient method of blocking, bleeding, and calibrating pressure instruments

Designed for connecting system impulse line & transmitter

Combine the function of a tee, calibration valve, isolation valve, all tubing and fittings in a single valve configuration

Bonnet lock pins prevent accidental loosening

Free swiveling ball end stem (metal seat, std.) assures bubble tight valve closure without seat galling

Special hardened ball seat is ideal for both gas and liquid service

All stem packing is located below the stem threads preventing galling, corrosion and contamination

Adjustable packing reduces the possibility of bonnet/body leaks

Full back-sealed bonnets prevent accidental stem removal and blowout