The Hoke 3–Valve Trifold manifold is designed for direct mounting to differential pressure transmitters having 2.125 inches [34 mm] center-to-center process connections.

Pipe by Flange

When direct coupling to orifice plate flanges is not desired, the pipe by flange Trifold Manifold allows for two 1/2″ NPT process connections in addition to direct mounting of the transmitter.

Flange by Flange

When direct coupling to orifice plate flanges is required, the flange by flange Trifold Manifold mounts directly between the flange and the transmitter. If direct coupling to orifice plate flanges is not required, process futbol connectors may also be used.

Features & Benefits

• Purge ports are provided on the process side of block valves for applications requiring continuous purging.
• Bleed or vent ports on the instrument side of the block valves.
• Dyna-Pak TFE or high-temperature 600° F [316° C] Graph-lock/TFE wafer packing is standard.
• Bonnet locks prevent accidental disengagement of the bonnet.
• Non-rotating hardened metal stem tip.
• Integral backseats on all valve stems prevent accidental removal.
• Mounting bolts and TFE gaskets are standard.
• Packing below stem threads prevents process liquids from contaminating or washing away the thread lubricants.
• Special High Tolerance NPT Thread

Technical Data