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Fluid Controls

Product

Five-Valve Direct Mounting

Vent valves on the side and the rest on top, angled to clear the instrument, with a screwed process connection.

A manifold

Five-Valve Direct Mounting

Model 5 DM1 is designed for direct mounting on differential pressure instruments. It carries two process isolation valves, one equaliser valve and two drain / vent valves on separate connections, with the vent valves on the side and the rest on top. The valves are suitably angled to prevent fouling with the instrument, which is the constraint that shapes this one.

The process connection is threaded for tube or pipe assembly.

Dimensions are for the standard 54 mm (2 1/8 in) instrument connection centre distance, which is what most instruments use. The manifold is also made for other centre distances — 55 mm, 56 mm and 57 mm — with dimensions to suit; ask for those. The process connection is 1/2" NPT (F), the instrument connection is flanged and the drain / vent is 1/4" NPT (F). A test port on the process side with a plug is available as an option. Four mounting bolts to IS 1364-1960 and two PTFE or Viton interface seals are supplied.

Max working pressure
up to 620 kg/cm² body / 413 kg/cm² seat (hydrostatic test)
Body materials
A 105, A 182 / A 479 Gr F 304SS, A 182 / A 479 Gr F 316SS, Monel, Hastelloy
Thread systems
NPT, Flanged
Heat-code traceable · 100% tested

Features

  • Model 5 DM1 — vent valves on the side, the rest on top
  • Valves angled to clear the instrument
  • Two isolation valves, one equaliser, two drain / vent valves
  • Process 1/2" NPT (F), instrument flanged, drain / vent 1/4" NPT (F)
  • Option: test port on the process side with plug
  • Accessory: mounting bolts 4 nos, interface seals 2 nos

Applications

  • Direct-mounted differential pressure transmitters
  • DP flow and level measurement
  • Hook-ups with no impulse pipework
Max working pressure
up to 620 kg/cm² body / 413 kg/cm² seat (hydrostatic test)
Thread systems
NPT, Flanged
Body materials
A 105, A 182 / A 479 Gr F 304SS, A 182 / A 479 Gr F 316SS, Monel, Hastelloy
Temperature
PTFE gland packing as standard; Graphoil above 180 °C
Testing
Hydrostatic body 620 kg/cm², seat 413 kg/cm²; pneumatic seat 40 kg/cm², at 25 °C

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