Spirax Sarco Spirax-Monnier MP User manual

1
IM-P054-07 CH Issue 1
Spirax-Monnier MP Miniature Compressed Air Filter/Regulator
IM-P054-07
CH Issue 1
0544756/1
Printed in the UK © Copyright 1995
How to fit
Fit in a horizontal pipework, with the bowl ver-
tically downwards, as close as possible to the
equipmentitisserving.Connectunitsothatair
flow is in the direction shown by the arrow cast
on the body. A pressure gauge fitted to one of
theportsisrecommended(toshowthesecond-
ary pressure). The port(s) not in use should be
blanked off with the plugs supplied.
Panel Mounting: The panel must not exceed
8mm thick. The required hole is 31mm.
To adjust
Lift locking ring (2). Turn adjustment knob
(1)clockwise to increase pressure.Depress
locking ring to lock.
It is recommended that all adjustments are
made under flow conditions. There will be a
slightincreaseinsetpressurewhenflowstops.
How does it work
The filter portion of the Spirax-Monnier MP2
combinestheadvantagesofacentrifugalsepa-
rator and a fine mesh filter element. Contami-
nated compressed air (3) is directed to the
inside of the bowl (5) by the multi bladed whirl
disc(4).Thepreliminaryseparationallowsmost
of the liquids and the larger solid particles to
pass down into the sump (6) away from any
turbulence.Theairisthenfilteredbya5micron
element (7) before flowing past the main valve
(8)of the regulator portion of theMP2.Withthe
adjustment knob (1) rotated fully anticlockwise,
the valve return spring (13) will keep the main
valve (8) shut. Clockwise rotation of the adjust-
mentknobwillcompressthemaincontrolspring
(11), deflect the diaphragm assembly down-
wards (10), opening the main valve (8). As air
flows to the downstream (9) side of the filter/
regulator, the secondary pressure increases.
Thesecondarypressureissensedontheunder-
side of the diaphragm. As the controlled pres-
sure varies, so does the force on the underside
of the diaphragm. When this force (proportional
tothesecondarypressure)equalsthecompres-
sion in the main control spring, the main valve
will shut. Any fall in secondary pressure will
causethemainvalvetoopensufficientlytomeet
the air flow requirements and accurately main-
tain the set secondary pressure.
1
2
11
10
4
5
6
9
16
12
8
3
13
7

2IM-P054-07 CH Issue 1
Anyappreciableriseinthesecondarypressure
fromitssetvaluewillcausethediaphragmand
the push rod (12) to lift. This will allow air to
escape through the centre of the push rod to
atmosphere.Whenexcesspressurehasvented,
theorificeinthepushrodwillreseatonthemain
valve.
Ensure that the bowl is regularly drained by
means of the quick action drain valve (16).
Warning
Polycarbonate bowls are attacked by phos-
phate ester fluids, solvents, paint thinners and
carbon tetrachloride. These and similar sub-
stances should never be allowed to come into
contact with the bowl. Certain compressor lu-
bricating oils also contain additives harmful to
polycarbonateandwherethereisanydoubtwe
recommend,intheinterestofsafetythatabowl
guard be fitted.
Spare parts
AVAILABLE SPARE
Bowl Assembly A, B
Element Set 5 micron (pkt 3) B, C
Bowl Guard Assembly X, Y, Z
Panel/Bracket Mounting Ring D
How to order
Example — 1 Element Set for ¼" Spirax-
Monnier Filter/Regulator Type MP2.
To Service Filter
Shut off air. Remove bowl guard if fitted. Re-
lease pressure by opening manual drain or
gently unscrewing the bowl until pressure re-
lieves.
Remove bowl and unscrew element retaining
nut and withdraw filter assembly.
Clean bowl using soap and water only. Reas-
semble with new element and gasket. Do not
overtighten bowl.
X
Z
Y
A
C
B
D

3
IM-P054-07 CH Issue 1
Spirax-Monnier Products
General Safety, Installation and Maintenance Guidelines
For Maximum Pressures/Temperatures
see overleaf
WARNING
As with all Pressurised Systems, do NOT
attempt ANY Installation or Maintenance
function if there is ANY pressure in the
product or connected system.
Spirax-Monnier
SpiraxMonniercompressedairproductsareof
well proven and simple design, with high natu-
ral levels of designed safety built in. However,
usedor installed incorrectly, their performance
and that of the system they are protecting or
controlling, may suffer. The information given
indicates the product limiting conditions, main-
tenance and installation requirements and any
specific component disposal needs.
Product Maintenance - See Over
Installation and Operation
1. Filters,Filter/Regulators,Lubricators,Flow
Meters, SeparatorsandDrainTrapsshould
be fitted in horizontal pipelines, with the
bowls vertically downwards.
2. RegulatorsandBallValvescanbeinstalled
in any position.
3. On Pressure Regulators and combined
Filter/regulators,aPressureGaugecanbe
connected to one of the 1 / 8" ports.
Thegauge should be selected to coverthe
maximum pressure range of the main
ControlSpring. Thegaugewillindicatethe
downstream or controlled pressure.
4. Ensure that the Control Spring range for
RegulatorsandFilter/Regulatorsfullymeets
the pressure requirements of the system.
5. There are Maximum Operating Pressures,
andMaximumOperatingandEnvironmental
Temperatures for each product.
These are shown in the table below.
6. Adequatespaceshouldbeprovidedaround
any product to allow easy access for
routine servicing requirements.
7. ProductsfittedwithaBowl(Polycarbonate
or Metal ) should be adequately drained -
manually or automatically - to reduce the
potentiallyharmfuleffectsofwatercarryover.
8. WARNING PolycarbonateBowlsandSight
Domes, and Sight Levels fitted to Metal
bowls, may be attacked by Phosphate
Ester based fluids, Solvents, Chemical
cleaners,Carbon Tetrachloride,etc. These
and other similar substances should
never be allow to come into contact with
these product components. Certain
compressor lubricating oils also contain
additives harmful to these components.
Wherethereis any doubt, we recommend,
in the interests of safety, that Bowl
Guards or Metal Bowls are fitted.
9. Local regulations may restrict the use of
this product below the conditions quoted.
10. For more detailed information on any
individual product, please ask for the
appropriate Technical Information Sheet
listed in the table.

4IM-P054-07 CH Issue 1
MAXIMUM PRESSURES/TEMPERATURES
Polycarbonate Bowl Metal Bowl Metal Bowl with DISPOSAL
Sight level CLASS TI
FILTERS bar °C bar °C bar °C
MF2 10 50 - - - - 1 & 3 P050-05
IF2/D/A 10 50 17 80 17 70 1 & 2 P500-01
IC3/4/DA 10 50 17 80 17 70 1 & 2 P501-01
IXI 10 50 17 70 17 70 1 & 2 P057-01
SF3/A - - 17 80 17 70 1 & 3 P050-03
REGULATORS
MR1/2/3 21 bar 70°C : CONTROL RANGES : 0.2/2. 0.3/4, 0.7/9 bar 1 & 3 P051-01
IRI 20 bar 70°C : CONTROL RANGES : 0.2/3.5, 0.5/1 bar 1 & 2 P058-01
SR2 21 bar 70°C : CONTROL RANGES : 1.3 - 17.0 bar 1 & 3 P570-01
SR3 21 bar 70°C : CONTROL RANGES : 0.2/4, 0.3/9 bar 1 & 3 P570-03
FILTER REGULATORS
IP2/A/D 10 50 17 80 17 70 1 & 2 P510-01
RANGES : 0.2/3.5, 0.5/10 bar
MP2 10 50 - - - - 1 & 3 P054-01
RANGES : 0.2/2.0, 0.3/4.0, 0.7/9.0 bar
MPC2 10 50 - - - - - P054-04
RANGES : 0.2/2.0,.0.3/4.0, 0.7/9.0 bar 1 & 3
LUBRICATORS
ML3 10 50 - - - - 1 & 3 P052-07
IL1 10 50 17 80 17 70 1 & 2 P059-01
SL3 - - 17 80 17 70 1 & 3 P052-04
OTHER PRODUCTS
IFM2 10 50 - - - - 1 & 2 P580-01
S.M.S. - - 17 70°C - - 1 & 3 P050-17
BALL all to 15 bar & 45°C
VALVES (all) (see performance graph on TI for full details) 1 & 4 P560-01
DRI-LINE - - 16 80°C - - 1 & 3 P050-07
DISPOSAL
1. Some plastic and/or rubber components
2. Main body Zinc - epoxy coated
3. Main body Aluminium - epoxy coated
4. Brass and Steel
5. Electronic Components
Note
Customers are reminded that under UK and EC Health, Safety and Environmental Law, when
returning products to Spirax Sarco they must provide information on any hazards and the
precautionstobe takenduetocontaminationresiduesormechanicaldamagewhichmaypresent
ahealth,safetyorenvironmentalrisk.ThisinformationmustbeprovidedinwritingincludingHealth
and Safety data sheets relating to any substances identified as hazardous.