IRIS VALVE OR CONCENTRIC SPLIT DIAPHRAGM (CSD) VALVE
ELECTRIC OR PNEUMATIC ACTUATION WITH POSITIONER
CONCENTRIC SPLIT DIAPHRAGM VALVE OPENS THROUGH THE CENTRE
Flow Control Applications:
- Sugar Industry: Sugar Syrups, Molasses, Massecuites, Lime (Caoh) Slurry, Etc.
- Pharma and Chemical: Slurries, Multiple Kinds Of Viscous Fluids, And Free-Flowing Materials Or Powders Or Granules
- Wastewater Treatment Plants: Wastewater From Municipalities And Industries, Air Flow Regulation For Aeration Control Application
- Pulp And Paper Industry: Paper Pulp And Fluids With Fibrous Suspensions
- Free-Flowing Granules Or Pellets: Salt, Powders, Grain, Polymer Granules With A Particle Size Between 0.5mm And 10mm
- Air And Gas: Industrial Hot And Cold Air, Non-Corrosive Gases
Other Applications:
- Controlled Gravity Flow Of Grains Or Pellets Or Powders With A Particle Size Between 0.5 mm And 10 mm In Any Industry Or Grain Irradiation Facility
- Ideal For Controlling Gravity Flow Control Of Flow Of Slurries / Semi-Solids / Concrete And Other Fluids
- Ideal For Ratio Control Of Two Or More Ingredients Falling In A Vessel
- Hot And Cold Airflow Control
Flow Profile Of Concentric Split Diaphragm Valve:
Gravity Discharge Installation:
Inline Installation: The Flow Profile Through The Split Diaphragm’S Center, Minimizes Pressure Drop, Noise, And Flow Turbulence Throughout The Entire Flow Regulation Range
Other Applications:
- Controlled Gravity Flow Of Grains Or Pellets Or Powders With A Particle Size Between 0.5 mm And 10 mm
- Ideal For Controlling Gravity Flow Control Of Flow Of Slurries / Semi-Solids / Concrete And Other Fluids
- Ideal For Ratio Control Of Two Or More Ingredients Falling In A Vessel
- Hot And Cold Airflow Control
Characteristics And Advantages Of IRIS OR CSD Valve:
- Rugged Build Quality For Long Life And Frequent Throttling And On / Off Operations.
- Heavy-Duty Rugged Valve Construction Absorbs All Shocks And Vibrations.
- Valve Internals Designed To Operate Under Heavy Media Loads.
- Very Low Maintenance.
- Precise Flow Control Without Hysteresis Due To The Concentric Opening Of The Split Diaphragm.
- Low Noise And Low Flow Turbulence Throughout The Full Flow Control Range.
- High Flow Capacity
- Lower Pressure Drop Than Other Valve Types Due To Free Passage Through Concentric Opening.
- Reduced Pressure Drop Allows Lower Power Pump Drives, Thus, Energy Saving, While Flow Control Due To Free Passage Through Concentric Opening.
Valve controller with the following features:
Common Features For Pneumatic And Electric Actuator Control Panel:
- Pid control action for flow control
- Remote set variable facility for flow control as per another process Parameter
- Built-in auto-manual station
- Dcs input facility (4-20mA DCS control output for valve control given through toggel switch. This avoids need of additional junction box on field)
- Optional valve position feedback as 4-20mA
Additional Features For Electric Actuator Control Panel:
- Single Or 3-Phase Motor Actuator Panel
- Time-Proportionate Pid Output Following Either Local Pid Action Or Remote 4-20Ma Input From A Centralized PLC / DCS System
- Built-In Actuator Protection Motor Stalling Function
- Built In Valve Opening Minimum And Maximum Range Selection
Pneumatic Actuation:
Product Code: Pneumatic With Electro-Pneumatic Positioner: PCAEPP
Pneumatic Cylinder Without Positioner: PCA
- Pneumatic Cylinder With Electro-Pneumatic Positioner For Smooth Linear Control Action.
- Operating Air Pressure: 2 - 7 Kg/Cm2
- Input: 4-20mA From Any External Source
Electric Motorized Actuation:
Product Code: 3-Phase Electric:MEA3PEP OR 1-Phase Electric:MEA1PEP
- Electric Actuator Geared AC Induction Motor With Electronic Positioner
- Operating Voltage: Single Phase 110 VAC 60Hz / 230 VAC 50 Hz Or Three Phase 440 VAC 50 / 60Hz
- Input: 4-20mA From Any External Source Or Push Buttons
Hand Operated
- Geared Hand-Wheel: Product Code: GHW
Hand Lever:
- Product Code: HLO
IRIS OR CSD Valve Product Code:
- CSDV24S###. Where, ### IS The 3-Digit Valve Size In mm.
- E.G.: CSDV24S150 means CSD OR IRIS Valve OF 150mm Internal Diameter Of The Valve Opening.
IRIS Valve With Electric Actuation: CSDV24S### + MEA3P OR CSDV24S### + MEA1P
IRIS Valve With Pneumatic Actuation: CSDV24S### + PCAEPP OR CSDV24S### + PCA
IRIS Valve With Hand Actuation: CSDV24S### + GHW OR CSDV24S### + HLO
IRIS or CSD Valve Specifications:
| Valve Type | : | IRIS Or Concentric Spilt Diaphragm Valve |
| Actuation | : | Pneumatic, Electric, Or Hand Operated |
| Sizes | : | 2" (50mm), 3" (75mm), 4" (100mm), 6" ( 150mm), 8" (200mm), 10" (250mm), 12" (300mm), 16" (400mm), 18" (450mm) |
| Body Material | : | Standard: MS Fabricated On Request: SS 316L / SS 304 / LCB |
| Petal Segments | : | Standard: SS 304. On Request: SS 316L, Duplex Steel 2205 / Other Special Material |
| Bearings And Wedges Material | : | Standard: SS 304. On Request: SS 316L, Duplex Steel 2205 / Other Special Material |
| Sheathing | : | PTFE / PU |
| Actuation | : | Pneumatic Linear / Electric - Motorized / Hand - Wheel |
| Actuator Stroke / Torque | : | As Per Valve Size And Line Pressure |
| Positioner | : | Electro-Pneumatic / Electronic |
| Position Feedback : (Optional) | : | 4 - 20 MA / 0 - 5 VDC |
| Input (For Actuated Valves Only) | : | 4 20 Ma From Any External Source Or Push Buttons For Open And Close |
| Media Temperature And Pressure | : | -45 To 160°C, 0-10Kg/cm2 |