MD31

This slimline monoflange Flow/dP/Level close coupled manifold is designed to replace all standard valve assemblies which are usually needed for a differential pressure measurement into one single monoflange/manifold. It is a combination of the primary process isolation valve (OS&Y), a bleed, secondary valve and a double block / equalize configuration, all integrated in one piece body. The main advantages are less leaking points, weight saving and reduction in installation and maintenance time and costs.

Connections

Per default: Vent and/or test ports will be 1/4” thread size.

See ordering information on the back of this specification sheet for connection types
available.

Pressure vs. Temperature Diagram

Design features

• Self aligning metal seats
• Compact Design
• Non-rotating spindle tip
• Metal seal between body and bonnet
• Bonnet Locking pins
• Safety back seating T-Bar and Anti-Tamper operated valves
• Fire safe OS&Y Primary valve
• Full traceability of all materials
• 100% pressure tested (1,5 x MWP)

Options

• Flanges according ANSI, EN1092-1 and JIS
• Flange sizes from 1/2”(DN15) up to 3”(DN80)
• Direct mounted transmitter connections and also Rosemount Integral mount / coplanar style
• Pressure rating from 150# up to 2500#
• Available in e.g. Monel, Hastelloy, Duplex, Super Duplex or Alloy 825/625 compliant materials
• High temperature up to 450°C (Graphite packing)
• High pressure up to 10.000 PSI
• Fugitive Emission design (class AH)

Valve diagram