Watson Smith - Controlling Pressure Worldwide

R27 - MANOSTAT PRECISION PRESSURE
REGULATOR SERIES
MANUALLY / MECHANICALLY OPERATED

FEATURES

 Reliable, durable
 Precise regulation
 Excellent setting sensitivity
 High relief capability
 Versatile design for varied applications

GENERAL DESCRIPTION

The manostat precision pressure regulator series are designed for critical pressure control applications and have demonstrated outstanding reliablility and durability in many thousands of applications worldwide. It is suitable for dead-end (closed load) conditions and can be supplied on its own or with a visual display dial

Other versions include; plunger, lever operated and volume boosting air relay.

Manostat Precision Pressure Regulator Series

Functional Symbol

Technical Data
PNEUMATIC
*Output Signal See ordering information. Pressure range can be limited by resetting the locknuts provided
*Air Supply Oil free, dry air or other dry gases, filtered to better than 25 microns; at least 0.2bar (3psig) above output pressure to a maximum of 10bar (150psig, 1000kPa)
*Flow Capacity Up to 300nl/min (10scfm). High relief version available for applications requiring a rapid exhaust
*Air Consumption 0.2 l/min (0.006scfm) at 1bar (15psig);
0.3 l/min (0.01scfm) at 1.7bar (25psig);
0.6 l/min (0.02scfm) at 4bar (60psig);
1.2 l/min (0.04scfm) at 8bar (120psig);
(typical values at maximum supply pressure)
*Response Time less than 0.2 seconds for 50% load change
*Regulation Accuracy % output change for 1bar/15psi supply pressure change at mid-range output; 0.1% (0.14bar/2-25psi), 0.05% (0.14-4bar/2-60psi), 0.02% (0.14-8bar/2-120psi)
*Sensitivity Better than 0.3mbar (0.005psi)
*Hysteresis and Repeatability Typically less than 0.05% setting at mid-range
*Temperature Effect Typically better than +/-1% change of full span between -20°C and +70°C
*Connections 1/4" NPT female standard (plus two integral 1/4" NPT gauge ports); others on request
MODEL TYPES
*Handwheel Basic manostat unit with pressure adjusting handwheel; mounting in any attitude, integral mounting nut supplied
*Dial manostat Manual pressure loading unit combining a manostat regulator with 4" diameter gauge
*DIN manostat As above but with a DIN standard pressure gauge
*DMW Weatherproof version of dial manostat with 100mm diameter gauge; pneumatic connections taken to lower face of casing; surface or post mounting (yoke supplied suitable for a 50mm/2" diameter post); casing is polycarbonate, grey finish to IP55
*Volume Boosting Air Relay (manual bias) Remote control of regulated pressures is possible with minimal air usage; positive or negative bias between pilot signal and regulated pressure can be set up of up to 2bar/30psig
PHYSICAL
*Operating Temperature -20°C to +70°C
*IP Rating IP65
*Vibration The unit is unaffected by moderate vibration
*Material of Construction Zinc diecasting passivated and epoxy painted. Berylium copper capsule; Nitrile diaphragms
note: a small pressure (<2psig, 0.14bar) will show at the lower end of dial manostats gauge scale (due to regulator servo operation)

ORDERING INFORMATION
Handwheel monostats
Ourtput pressure
 
Order code
0.14 -1.7 bar, 2-25psig
Standard
53100200R
High relief
53120200R
0.14 - 4 bar 2-60psig
Standard
53100300R
High relief
53120300R
0.14 -8 bar, 2-120 psig
Standard
53100400R
High relief
53120400R
Manual bias relay
Ourtput pressure
 
Order code
0.2-1 bar, 3-15psig
Standard
53220100R
High relief
53230100R
0.14 - 8 bar, 2-120psig
High relief
53220400R
Standard
53230400R
Options to special order: Captured bleed version of handwheel manostat suitable for natural gas applications available. Factory fitting of a reduction gearbox to handwheel manostat (change "00R" to "96R"). Yoke mounting for Weatherproof Manostat (change "00R" to "10R"). Alternative pneumatic connections. Low pressure versions of standard models.
Din Dial / monostats
Pressure range
Scale
Dial
Din
Weatherproof DMW
0.2-1 bar, 3-15psig
Dual
53300100R
53310100R
53320100R
0-2 bar, 0-30psig
Dual
53301200R
53311200R
T.B.A
0-4 bar, 0-60psig
Dual
53301300R
53311300R
T.B.A
0-8 bar, 0-120psig
Dual
53301400R
53311400R
53321400R
0.2-1 bar
0 - 100%
53309000R
53319000R
53329000R
3-15psig
0 - 100%
53309100R
53319100R
53229100R
20-100kpa
0 - 100%
53309200R
53319200R
53329200R

Options to special order: Captured bleed version of handwheel manostat suitable for natural gas applications available. Factory fitting of a reduction gearbox to handwheel manostat (change "00R" to "96R"). Yoke mounting for Weatherproof Manostat (change "00R" to "10R").Special scale calibrations for Dial Manostats. Alternative pneumatic connections. Low pressure versions of standard models.

PDF

Manually Operated Brochure

Mechanically Operated Brochure



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