Differential pressure slimline

MD59 SBB/DBB dP/FLow/Level Slimline Monoflange Manifold

MD59 Monoflange for creating a dP/flow/level close coupled hook up. To be combined with the MP00 model on the low pressure side.


This slimline monoflange is designed to replace the primary and secondary process valve assembly and a dP manifold with any DIN19213 / IEC61518 differential pressure transmitter which is needed for dP flow measurement. It is a combination of the primary process isolation valve (O.S.&Y), and a 5-valve level manifold, all integrated in one forged body.

The main advantages are less leaking points, weight saving and up to 35% reduction in installation and maintenance time and costs.

Maximum working pressure is 420 Bar
Maximum temperature is 200°C


Vent and/or testports will always be 1/4" threadsize, independent of process connection sizes.

For ordering information please consult the Model Code Wizard for port 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
• Firesafe OS&Y Valve
• Safetyback seating T-Bar and Anti-Tamper operated valves
• Full traceability of all materials
• 100% pressure tested


• Flanges in DIN and ANSI 1/2" up to 3"
• Flange ratings 150# up to 2500#
• Available in Monel, Hastelloy, Duplex or NACE compliant materials.
• Body Enclosure available
• EEx manifold heater available
• High temperature up to 450°C
• High pressure up to 680 Bar

Valve diagram