Spirax Sarco IP2AM, Инструкция по установке и обслуживанию

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IM-P504-18 CH Issue 2 12
4.1 Principle of operation
With system pressure on, the regulator poppet valve assembly is in the closed position
when the adjusting knob is turned fully counter clockwise (no spring load). By turning the
adjusting knob clockwise, the diaphragm / piston moves downward allowing filtered air to
flow in through the orifice created between the poppet assembly and seat.
Auto-drain - IP2AM
The Monnier internal auto-drain is a pilot operated unit. As the water level in the bowl
rises, the float ( 13 ) lifts, allowing line pressure to act on a piston, which opens the main
discharge valve. As the liquid level falls, the float closes and line pressure shuts the
main valve. Under zero pressure conditions, the automatic drain will be in the open position,
allowing any liquid to drain away.
Automatic dump valve - IP2DM
This is a spring loaded valve which will allow the filter / regulator
to automatically drain when the pressure in the bowl drops below 0.06 bar (i.e. when air
to the plant is shut off).
The units can also be drained manually by pushing the protrouding valve stem sideways
or upwards.
4. Operation
IP2M
(having a metal bowl)
IP2AM
13
Fig. 11 Fig. 12