Seal Pot, Key, Orifice Plate & Vent Purge Blocks
A range of accessories to complement the modular mounting system.

P - Orifice plate
To regulate purge fluid flow, a purge orifice nipple (orifice plate) is available to fit 6mm, 10 mm and 3/8” OD tubing.
The orifice size is supplied as requested.
Each orifice plate has a tag plate from 1 mm thick 316 SS with a tag number and orifice size information provided.
Mesc SPE: 60.95.90/

SP - Seal pots[1]
For systems requiring an open seal, i.e. high temperature, toxic or corrosive service, the Seal Pot, used with a seal
fluid immiscible in the process medium, will provide a barrier for the manifold and instrument.
If the instrument is located below the orifice plate, a seal fluid with a higher specific gravity than the process medium is required. If the instrument is located above the orifice plate, a seal fluid with a lower specific gravity should be
used.
The seal pot has a capacity of approximately 50 cc and is equipped with an integral vent valve. The maximum working
pressure is 413 bar at 38°C; maximum working temperature 450°C. Connections are G¼” parallel threaded.
Mesc SPE: 60.98.70/510 or 610

K - Anti-tamper key

A removable T-bar key can be supplied to prevent unauthorized operation of valves. The Anti-tamper bonnet is fitted
as standard to all vent and equalize valves on modular mount manifolds.
Mesc SPE: 60.98.70.905.1