900D

Engineering
GREAT Solutions

DRAG® Control Valve

900D

Fully characterisable,

900D Control Valve

multi-stage DRAG® trim

IMI CCI’s DRAG® technology, pioneered in 1961, is the industry’s

leading solution for handling demanding service conditions. The
900D is designed to deliver peak process performance with superior
control while minimising losses caused by valve leakage. IMI CCI’s
proven DRAG® technology will reduce your equipment and
maintenance costs through dramatic reductions in cavitation and
vibration – the root cause of damage to trim, adjacent equipment
and piping. Supported by the world class technical expertise of the
Valve Doctor® program, the 900D is a continuation of IMI CCI’s
industry leading critical application solutions that customers have
come to depend on.

Key features
> Multi-stage DRAG® > Top entry design
- E liminates cavitation, noise - Teflon and graphite seals available
and vibration Stem Vibration Velocity
> Trim characterisation DRAG® valve
- Increases life and reduces
(mm/s, 0-pk)
- Linear and equal percentage full open Conventional valve
maintenance costs
- C ustom characterisation available to
match specific process requirements
> Tight shutoff
- Reduces leakage > Easy maintenance
- A vailable in Class IV, Class V - Q
 uick change trim allows for ease of
& VI with soft seat maintenance, no internal components Hertz
are screwed or welded into valve body Chart 1: Stem vibration velocity for a conventional
or bonnet valve before retrofit (blue line) and after retrofit with
DRAG® trim (red line)

Benefits
> Control and reliability > Solves vibration > Solves noise
The 900D continues IMI CCI’s tradition IMI CCI has extensive experience in IMI CCI’s philosophy on noise control is to
of customising valve performance to helping customers eliminate the damage avoid the creation of noise as opposed to
meet the exacting requirements of your caused by vibration. Chart 1 shows the trying to muffle it once it’s produced. With
application. In addition to linear and dramatic results of applying DRAG® the 900D the amount of noise that must
equal percentage characterisation, the technology and kinetic energy control. be absorbed by the pipe wall or insulation
900D can be custom characterised for Customers typically experience a 90% is dramatically reduced, and the noise
applications that require critical control decrease in peak vibration with the sensed in the vicinity of the valve is at
application of DRAG®, and that enables acceptable levels:
> Solves cavitation
them to: - DRAG® operates <85 dba
- M
 aintains the fluid velocity at minimum
- Eliminate valve and piping damage. - Eliminates worker safety concerns
levels so that local pressures are
- Minimise system trips - E  liminate additional insulation &
unlikely to drop below the fluids
- M inimise downtime and maintenance acoustic barriers
vapour pressure
costs - Maximise process flow rates
- S
 hould gas bubbles form, DRAG®
- Eliminate additional piping supports
reduces the energy to a safe level
by dividing the flow into many small
channels
- T
 he 900D adheres to ISA guidelines on
trim exit velocity
Materials
Component Item No. Material Options

Body 1
Carbon steel, chrome-moly steel, stainless steel, other
Bonnet 2 13 4
316SS Chr Plt or Stellite, 410 SS HT, Inconel 625, UNS S31803
Plug 3
Chr Plt or Stellite, F11 Stellited, F22 Stellited 12
316SS Chr Plt, UNS S31803 Chr Plt, 410 SS Heat Treated,
2
Stem 4
Inconel 718, 17-4PH H1150M 11
Seat 5
316 SS, 316 SS with Stellite, 410 SS Heat Treated, Inconel 718,
UNS S31803, UNS S31803+Stellite, F11+Stellite, F22+Stellite 10 6
Disk Stack 6 316 SS, 410 SS, Inconel718, S31803
7
Balance Cylinder 7
Carbon steel, chrome-moly steel, stainless 1
steel, other
8
Balance Seal 8 PTFE + 316 SS, Graphite

Seat Gasket 9 347 SS with Graphite Filler

3
Body/Bonnet Gaskets 10 347 SS with Graphite Filler 9
5
Packing Spacer 11 316 SS

Packing Set 12 Glass Filled PTFE, Graphite

Packing Follower 13 316 SS

Performance data
Body type Fail mode Shut-off class, ANSI/FCI 70.2
Globe/Angle Open, Close, In-Place Class IV, V, VI (Soft Seat)

Valve sizes Face to face Trim characteristics

1" through 16" ISA 75.08 - 2002 Linear / Equal Percentage / Custom
Characterisation*
Pressure rating (ANSI class) Flow direction
150, 300, 600, 900, 1500, 2500 Flow-To-Close (Liquids) Internal actuator type options
Flow-To-Open (Gas) IMI CCI Spring Diaphragm
End connections IMI CCI Double Acting Piston
Raised Face Flange Temperature
RTJ Flange, -50°F to 975°F (-46°C to 525°C) Stroke time**
Butt Weld End < 30 sec (standard)/ < 1 sec to open,
< 5 sec to close (fast stroke)
*Designed specifically to match customers process requirements **Lower stroking times upon request

Applications
> Oil & Gas > Power application > Nuclear application
- Extraction Steam Control - HP Heater Emergency Drains - Atmospheric Dump
- Fire Water Pump Recirculation - Feedwater Regulators - Feedwater Pump Recirculation
- Fire Water Pump Discharge - Startup Feed Regulators - Auxiliary Steam to Deaerator
- Gas Injection - Soot Blowing - Blow Down
- Gas Withdrawal (Clean) - General Turbine Island BOP - Condensate Drain
- Emergency and Service Vents - Condensate Pump Recirculation - Deaerator Level Control
- Fuel Gas Regulation Valves - Supercritical Startup Valve - Feedwater Heater Drains
- Compressor Anti-surge - Deaerator Level Control - Steam Bypass
- Hot Gas Bypass - DA Pegging - Condenser Dump (Turbine Bypass)
- Process gas to Vent/Flare - Auxiliary Steam PCV - Feedwater Regulator
- Expander Bypass (JT Valves) - Condensate Pump Recirculation
(non-cryogenic)
- Feedstock Flow/Pressure Control
- Passivation Valve
- Feedgas Regulator
- Lean Amine Pump
- Recirculation Control
- Produced Water Injection (Clean)
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