Two valve direct manifold, designed for use with pressure transmitters. The manifold will isolate instrumentation from the process and allow venting of the instrument for calibration / removal from the circuit without affecting the process / application and or recovery of a sample etc. This compact unit offers single isolation, and vent / test facility. Vent port 1/4" NPT. Supplied with bolt pack and seal as standard. The E2VBD can be supplied with additional tapped holes in its base for mounting purposes. Other options apply such as anti-tamper, lockable vent valve.