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GLOBE 2 WAY CONTROL VALVE SERIES MIC -221

INTRODUCTION

This type of Valve with its classic globe body shape, which reflects its name, uses the variable area generated between the plug and seat to control fluid flow. It is very versatile offering reduced trim options as well as a variety of special trims for severe high pressure drop applications.

This style of valve is easily adapted for use on cryogenic temperatures and for high temperature duties. This valve is preferred for tight shut–off, positioning accuracy,high range ability and simplified maintenance, satisfy the majority of control valve applications throughout the process and power industries in control of Air, Steam,
Water, Gas, Chemicals etc.

 
SPECIFICATION :
DESIGN
ASME B16-34
VALVE SIZE 15 to 450 mm (1/2" to 18")
RATING ANSI 150 to 2500 or Equivalents to BS, DIN, etc.
FACE TO FACE ISA S.75.03 up to 600# ISA S.75.16 900# and above.
END CONNECTION Flanged, Screwed, Butt Weld, Socket weld.
BODY MATERIALS Carbon Steel, Chrome-moly Steel, Stainless Steel, Monel, Alloy20, Hastelloy
B/C, Duplex Stainless Steel, Aluminum Bronze, PP, PTFE etc.
: PTFE Lined / PTFE Metal Housed
BONNET Standard upto 250°C
: Normalizing (Finned) between 250°C to 500°C
: Extended cold service - 20°C to - 100°C
: Cryogenic - 100°C to - 250°C
: Bellows seals.
GLAND PACKING Grafoil / PTFE V Rings, Low Emission
TRIM DESIGNS Top Guided Contoured, Splined Micro Flow, V-Ported (Balanced
/ Unbalanced), Low Noise (LN1, LN2, LN3, LN4)
TRIM MATERIALS Stainless Steel, Alloy20, Monel, Duplex Stainless Steel, 13%
Chrome Steel Hastelloy B/C, Stellite (Alloy 6)
CHARACTERISTICS Equal Percentage, Linear and Quick Opening.
SEAT LEAKAGE As per ANSI/FCI-70-2 Class III. IV, V and VI (STANDARD
LEAKAGE RATES) Metal to Metal Seating Class IV, Less than
0.01% of rated Cv. Metal to Soft Seating

Bubble tight (Zero
Leakage)
ACTUATOR TYPE Diaphragm, Piston or Electric.
ACTUATOR ACTION Direct / Reverse Acting.
DIAPHRAGM Nitrile / Neoprene
SPRING RANGES 3–15 PSIG (0.2–1.0 Kg/cm2)
: 6 -30 PSIG (0.4-2.0 Kg/cm2)
AIR SUPPLY 20–35 PSIG (1.4–2.5 Kg/cm2)
AIR CONNECTION 1/ 4”or 1/ 2” NPT
ACCESSORIES Valve Positioner - Pneumatic, Electro Pneumatic, Smart Positioner.
Instruments-
Airset, Solenoid Valve, Air Lock, Volume Booster, Position Transmitter, Limit

Proximity Switches etc.
 

CONTROL VALVE WITH REVERSE ACTUATOR

CONTROL VALVE WITH DIRECT ACTUATOR

control-valve-with-reverse-actuator-mic221 control-valve-with-direct-actuator-mic221

request

FEATURES :

  • Top or Side Mounted hand wheel, Limit Stops
  • Removable Blind Head, Steam Jacketing, etc.
 

DESIGN FEATURES :

  • High flow capacity and range ability.
  • Large variety of Trim design.
  • Top entry for ease of inspection and maintenance.
  • Tight closing for reliable control even when changes in pressure / temperature are sudden
    and extreme.
  • Bolts located outside of the piping stress area to eliminate gasket crush problems,
  • Wide selection of actuators to meet most system requirement.
  • Rigorously proven on-site performance.

QUALITY AND PERFORMANCE GUARANTEE :

  • Produced with Quality Systems accredited to ISO 9001 : 2008 by Bureau Veritas and "CE" Marked in accordance to Pressure Equipments Directive and Regulations by Lloyd's Register.
  • Full material certification available for all major component Parts.
  • Full guarantee on design and Performance.
  • All testing performed to the requirements of ASME B16.34.

RANGE ABILITY

The Inherent range ability of MicroSet standard trims is as given under.

TRIM SIZE

STANDARD RANGEABILITY

inch
mm
Spline micro
trim
CONTOURED
LR trim
Multi Stage
trim
1/2 and 3/4
15 and 20
100:1
40:1
35:1
-
1 to 3
25 to 80
80:1
50:1
45:1
40:1
4 to 12
100 to 450
-
60:1
55:1
50:1
14 to 24
350 to 600
-
70:1
60:1
50:1

MAXIMUM RECOMMENDED VALVE BODY VELOCITY FOR LIQUID FLOWS

Trim style

VALVE SIZE

VALVE BODY MATERIAL

 

CARBON STEEL
ALLOY STEEL
Aluminium bronze
Inch
mm
m/s
m/s
m/s
Contoured
½ to 2
15 to 50
12.5
14.0
8.0
3 to 8
80 to 200
10.5
11.0
6.5
Cage Guided
1 to 12
25 to 300
13.1
15.8
8.0
12 to 24
350 to 600
10.7
13.1
6.5

MAXIMUM RECOMMENDED VALVE BODY VELOCITY FOR GAS/VAPOUR FLOWS

Trim style

Valve Size

MAXIMUM
MAXIMUM

MAXIMUM OUTLET MACH
No. for predicted noise level

 

Inlet velocity
Out velocity

 

Inch
Mm
m/s
m/s
>95dba
<95dba
<85dba
 

Contoured

½ to 2
15 to 50
105
253
0.65
0.5
0.3
3 to 4
80 to 100
90
253
0.65
0.5
0.3
6 to 8
150 to 200
85
253
0.65
0.5
0.3
Cage Guided
1 to 24
25 to 600
68
253
0.65
0.5
0.3

The Inherent flow characteristic of a control valve is the relationship between the flow and the lift of the plug at constant pressure drop.The characteristic normally available are shown
as below.

LINEAR :-Flow is directly proportional to valve lift.

EQUAL%:- Flow change by a constant percentage of its instantaneous value for each unit of valve lift.

QUICK OPENING:- Flow increases rapidly with
initial travel reaching near its maximum at a low lift.

 

VALVE FLOW CO-EFFICIENT / LIFT RELATIONSHIP EQUAL % CONTOURED TRIMS

valve-flow-coefficient-lift-relationship

request

VALVE SIZING CO-EFFICIENT Cv RATING - 150# TO 2500#

valve-sizing-coefficient-cv-rating

request

 

  VALVE SIZING CO-EFFICIENT Cv RATING - 150# TO 2500#

valve-sizing-coefficient-cv-rating1

request

VALVE STRIM: STANDARD RANGE

 
CONTOURED TRIM METAL TO METAL

CONTOURED TRIM SOFT SEATED

contoured-trim-metal-to-metal contoured-trim-soft-seated

 

request

CONTOURED TRIM
(Metal to Metal & Soft Seated)

The Contoured Trim is the standard Top Guided top entry, which provides sure, economical Control for intermediate pressure drop service. A large diameter, precision machined plug and a pressed in, hardened guide bushing constitute the basic elements of a plug guidance system.
Contoured trim available for both modulating duty and on/off duty. The contoured trim configuration available for both metal to metal contact and soft seat to metal contact to give leakage rate in accordance to FCI-70.02 class VI (ANSI B 16.104 class VI.)

V – PORTED TRIM

MICRO FLOW SPLINED TRIM

v-ported-trim

V – PORTED TRIM

(Metal to Metal or Soft Seated)

• Ported cage trim is a heavy duty cage guided design with the
option of pressure balanced configuration.
• Choice of seal materials provides fluid compatibility.

 

micro-flow-splined-trim

MICRO FLOW SPLINED TRIM

(Metal to Metal or Soft Seated)

• This design of trim is a Seat guided arrangement having a very high
range ability and designed for the accurate control of minute flow rates.

request

 

LN1 Single Stage Low Noise

LN2 Double Stage Low Noise

ln1-single-stage-low-noise ln2-double-stage-low-noise

 

LN3 Triple Stage Low Noise

 

LN4 Four Stage Low Noise

ln3-triple-stage-low-noise  ln4-four-stage-low-noise

request

 

LOW NOISE TRIM
(Metal to Metal and Soft Seated)

 

• All the advantages of ported cage trims.
• Multiple drilled orifices of a special size and spacing resulting in reduced noise levels compared to
conventional valve trims.
• Added advantage on liquid duty valves by preventing cavitations damage.
• Low pressure recovery characteristic of LN1 suitable for flashing duty.

 

ACTUATOR SELECTION GUIED

actuator-selection-guide

request

 

ACTUATOR DIMENSIONS

actuator-dimensions1

 
ACTUATOR
MODEL
EFFECTIVE
Inch2
BONNET
MOUNT
DIA.
TRAVEL
ФD
HA
HA1
HA2
HA3
HA4
HA5
MIC-R 141
30
54
28
218
-
356
-
494
-
650
MIC-D 141
30
54
28
218
372
-
529
-
650
-
MIC-R 166
55
54
28
286
-
494
-
566
-
697
MIC-D 166
55
54
28
286
471
-
678
-
673
-
MIC-R 166
55
71.5
38
286
-
542
-
615
-
746
MIC-D 166
55
71.5
38
286
520
-
727
-
722
-
MIC-R 106
95
54
28
371
-
513
-
588
-
730
MIC-D 106
95
54
28
371
505
-
711
-
707
-
MIC-R 106
95
71.5
38
371
-
577
-
651
-
779
MIC-D 106
95
71.5
38
371
555
-
760
-
756
-
MIC-R 251
140
71.5
38
443
-
601
-
681
-
848
MIC-D 251
140
71.5
38
443
573
-
852
-
821
-
MIC-R 251
140
90.5
57
443
-
736
-
816
-
983
MIC-D 251
140
90.5
57
443
708
-
988
-
956
-
MIC-R 411
300
71.5
38
616
-
772
-
-
-
1098
MIC-D 411
300
71.5
38
616
723
-
-
-
1075
-
MIC-R 411
300
90.5
57
616
-
823
-
-
-
1149
MIC-D 411
300
90.5
57
616
773
-
-
-
1075
-
MIC-R 411
300
90.5
90
616
-
984
-
-
-
1312
MIC-D 411
300
90.5
90
616
937
-
-
-
1239
-
MIC-R 411
300
90.5
102
616
-
1030
-
-
-
1426
MIC-D 411
300
90.5
102
616
1030
-
-
-
1550
-

 

• MIC-D: Direct Acting Actuator (used on supply failure Valve–Opens)
• MIC-R: Reverse Acting Actuator (used on supply failure Valve Closes)
• All dimensions in mm.
• The Company's policy is one of continuous product improvement and the right is reserved to modify the specifications contained herein without notice.

 

 

valve-with-bonnet

 

 

valve-with-bonnet2

 

 

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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