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UPSTREAM PRESSURE REGULATING VALVE – SERIES MIC-800

INTRODUCTION

The MicroSet Series 800 upstream Pressure regulating valve is a throttling pressure control device that opens and closes to ensure the upstream pressure does not rise above a predetermined pressure. The need for constant pressure and control of the media is the most essential part of various process industries size fertilizers, petrochemicals, Refineries, Pharmaceutical Chemicals & food processing Plants.

SPECIFICATION :
DESIGN
ASME B16.34
BODY TYPE Globe.
VALVE FORM 15 to 300 mm (1/2" to 12")
VALVE TYPE   1) Direct Operated-(MIC-821)
2) Angular Prv-(MIC-831)
3) Pilot Operated-(MIC-851)
RATING ANSI 150 and 300, Higher on request
END CONNECTION Flanged – 15mm to 300mm (1/2" to 12")
Screwed – 15mm to 50mm (1/2” to 2”)
AVAILABLE
CONFIGURATION
As per set pressure & flow requirements,
Different diaphragm sizes are available.
SENSING Neoprene, Nitrile, Viton, EDPM, Silicon,
Teflon etc.
DIAPHRAGM
BODY MATERIAL     
A216 Gr. WCB, CF8 / CF8M as standard.
Other on Request.
INTERNAL PARTS S.S. as standard, others on request.
TEMPERATURE 25ºC to 70ºC for Nitrile elastomer parts
15º to 175ºC for Viton.
SEAT LEAKAGE As per FCI-70-2 (ANSI B 16.104)
Class IV, V and VI
(STANDARD LEAKAGE RATES)
Metal to Soft Seating – Bubble tight
(Zero Leakage)
PRESSURE SETTING May be adjusted throughout a spring range
by turning the adjusting screw.
ADJUSTMENT
PRESSURE REGISTRATION
Internal (Standard) or Upstream Control
Line.
FLANGE END CONNECTION
1.1/2” AND ABOVE – MIC- 821)
PILOT OPERATED MIC- 851 ANGULAR PRV 1/2” AND 2”
MIC- 831
FLANGE END CONNECTION PILO- OPERATED-MIC- 851 ANGULAR PRV 1/2” AND 2”

DESIGN FEATURES :

  • Glandless Construction: - Where positive Zero gland packing is required, the design scores
    over conventional solutions such as bellow seals etc. as the gland itself is eliminated.
  • Wide range of body sizes and trim sizes to satisfy varied flow requirements.
  • Tight sensitively and stability of controlled pressure.
  • Provides excellent tight shut off capability over long working life.
  • Compact design with minimum number of moving parts.
  • Simple resetting.

QUALITY AND PERFORMANCE GUARANTEE :

  • Produced with Quality Systems accredited to ISO 9001: 2008 by Bureau Veritas.
  • Full material certification available for all major component Parts.
  • Full guarantee on design and Performance.
  • All testing are performed to the requirements of ANSI B16.34.
 

PRINCIPLE OF OPERATION

The upstream pressure is registered under the diaphragm opposing the spring when the upstream
pressure reaches the set point, the spring is compressed allowing the valve plug to open and relieve
excess pressure.

 
pressure-regulating-valve

SELECTION CRITERIA :

  • Familiarize yourself with the application consideration as they apply to your control
    requirements.
  • Inlet pressure setting and maximum allowable pressure buildup over the setting.
  • Normal and maximum inlet pressure.
  • Minimum, normal, and maximum flow rates.
  • Name, temperature and specific gravity of controlled fluid.
  • Inlet and outlet pipe size.
  • Installation.
  • Environmental considerations, such as noise level, corrosion, temperature extremes, etc.
  • Special capabilities such as gauges, test connections, etc.

For final and optimum selection, contact MicroSet sales office / factory who will assist you in
Selecting the type and size that best suits your need.

VALVE SIZE mm 1/2 3/4 1 1 1/2 2 3 4 6 8 10 12
   
15
20
25
40
50
80
100
150
200 250 300
Cv (MAX.) AT 90º OPENING
4
4
9
18
25
50
80
200 300 450 650

 

The Company’s policy is one of continuous product improvement and the right is reserved to
modify the specifications contained herein without notice.

 
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