IMI Zikesch

CCPP Valve Application March 20, 2008 CCPP Valve Application

Product Overview HP Shut-Off Valves

HP Shut-Off HP Gate Valves KS HP Stop Valves AV HP Swing Check Valve RK

HP Shut-Off HP Gate Valve (Type KS) (2) (3) (1) (5) (4) (7) (6) Valve body manufactured out of solid forged steel block (1) Maintenance Friendly - length between sealing plates and sealing ring can be adjusted after maintenance seat grinding by adding intermediate rings.The sealing plate can be reworked separately with a conventional lathe Pressure seal bonnet (2) Seat hardened & exchangeable - Sealing rings with extra cladding - as separate parts welded into the body (3) Unique flexible wedge design with Self- aligning effect - Sealing plates (4) attached to the plate support (5) with Bayonet-joint and concave thrust piece (6) and convex lens thrust piece (7) Flexible installation Straight with butt welding ends or flanges (2) (3) (1) (5) (4) (7) (6)

HP Shut-Off Gate Valves Project Maasvlakte – NL 1,100 MW Coal fired March 20, 2008 HP Shut-Off Gate Valves Project Maasvlakte – NL 1,100 MW Coal fired Power Plant DN 500 Customer E-ON Pressure Class PN400 Material 1.6368

Manufactured with Passion HP Shut-Off Manufactured with Passion

HP Shut-Off HP Swing Check Valve (Type RK) Valve body manufactured out of solid forged steel block (1) Maintenance Friendly - sealing plate and seat ring can be reworked with a conventional lathe Pressure seal bonnet (2) Flexibly installation Straight with butt welding ends or flanges Seat hardened & exchangeable - Sealing rings with extra cladding -as separate parts welded into the body (3) (2) (3) (1)

HP Shut-Off Special Damped Check Valve with Hydraulic Special Damped Check valve casting with Pneumatic piston

HP Shut-Off HP Stop Valve (Type AV) (4) Valve body manufactured out of solid forged steel block (1) Flexible actuator solution (4) pneumatic, hydraulic, electrical & manual Pressure seal bonnet or Bolted Bonnet (2) Flexible installation Globe, Angle- or Z shape with butt welded ends or flanges Maintenance Friendly Replicable Hardened Seat (3), Clamped or for pressurized seat with fixing ring (2) (1) (3)

HP Shut-Off From Small Size To Big Size And Mid Size

Product Overview HP Control Valves

HP Control Valves Spray Water Control Valves Steam Control Valves Pump Recirculation Valves

HP Control Valves Spray Water Control Valve (Type ESV) (4) Valve body manufactured out of solid forged steel block (1) Flexible actuator solution (4) pneumatic, hydraulic & electrical Flexible installation Globe, Angle- or Z shape with butt welded ends or flanges Bolted Bonnet, option for pressure seal bonnet (2) Maintenance Friendly Replicable Hardened Seat (3), Clamped or for pressurized seat with screwed fixing ring Multistage Reduction via Cascade plug, Noise generation and cavitation are avoided by the use of a multistage Reduction (2) (1) (3)

HP Control Valves Spray Water Control Valve (Type ESV) – Trim Variants To max four Stages perforated Trim in combination with parabolic Trim From two Stages perforated Trim in combination with parabolic Trim And three Stages perforated Trim in combination with parabolic Trim

HP Control Valves Spray Water Control (Type ESV) – Further Body Designs Forged Z- Body Design Forged Globe Design

HP Control Valves Feed Water & Drum Level Control Valve (Type RVW) (4) Valve body manufactured out of Solid Angle Forged Steel block or Casted Globe Body (1) Flexible installation Globe, Angle- or Z shape with butt welded ends or flanges Bolted Bonnet or pressure seal bonnet (2) Multistage Reduction via Cages, Noise generation and cavitation are avoided by the use of a multistage Reduction Maintenance Friendly Replaceable Hardened Seat (3), Clamped or for pressurized seat with scrued fixing ring Optional Stepped Plug with separated sealing and control stage for flashing conditions Flexible actuator solution (4) pneumatic, hydraulic & electrical (2) (1) (3)

HP Control Valves Examples for Globe Forged Feed Water & Drum Level Control Valve (Type RVW) bolted bonnet Pressure seal bonnet separated sealing and control stage Multistage Reduction via Cages Replaceable Hardened Seat with screwed fixing ring Forged Body to meet exactly customer pipe without transition pieces Replicable Hardened Seat holden down via control cages

HP Control Valves Examples for Globe Casted Feed Water & Drum Level Control Valve (Type RVW) bolted bonnet Multistage Reduction via Cages separated sealing and control stage Weld on transition pieces available to exactly meet customer piping Replaceable Hardened Seat holden down via control cages Casted Body based on proven IMI CCI design

HP Control Valves Feed Water & Drum Level Control Valve (Type RVW) – Further Body Designs Forged Z- Body Design Forged Globe Design

HP Control Valves Minimum Flow Valves / Pump Recirculation valves (Type MV & MVR) (4) Valve body manufactured out of solid forged steel block (1) Flexibal installation Globe, Angle- or Z shape with butt welded ends or flanges Pressure seal bonnet or Bolted Bonnet (2) Multistage Reduction via Cascade plug or via cages, Noise generation and cavitation are avoided by the use of a multistage Reduction Maintenance Friendly Replaceable Hardened Seat (3), Clamped or for pressurized seat with screwed fixing ring Optional Stept Plug with separated sealing and control stage and/or optional outlet venturi nozzle for flashing conditions Flexibal actuator solution (4) pneumatic, hydraulik & electrical (2) (1) (3)

HP Control Valves Design Examples Cascade Minimum Flow Control Valve (Type MV & MVR) Angle with pressure seal and screwed in seat fixing ring Angle with bolted bonnet and clamped seat, Flow under the plug for flashing service Globe or Z- Type with long Cascade

HP Control Valves Design Examples Cage Minimum Flow Control Valve (Type MV & MVR) Angle with bolted bonnet and clamped seat Globe with pressure seal and screwed in seat fixing ring Outlet venturi nozzle for flashing service

HP Control Valves Blow Down / Let Down / Discharge Valves (Type RVWK) (4) Valve body manufactured out of solid forged steel block (1) Stepped Hardened Single Parabolic Plug (5) with separate sealing and control stage. Cavitation behind the seat control contour to protect the seat contour Pressure seal bonnet or Bolted Bonnet (2) Maintenance Friendly Replaceable Hardened Seat (3), Clamped or for pressurized seat with screwed fixing ring or sealing weld. Seat design prevent two phase flow over the seat and cone area Optional Enlarged outlet (6) for reduction of velocity of two phase flow Flexible installation Angle with butt welded ends or flanges – special design for Globe and Z-Type Flexible actuator solution (4) pneumatic, hydraulic, electrical & Manual (1) (2) (6) (5) (3)

HP Control Valves Blow Down / Let Down / Discharge Valves (Type RVWK) From Small Size To Big Size And Mid Size

HP Control Valves Blow Down/Let Down/Discharge Valves (Type RVWK) – Special Body Designs Forged Angle or Z - Body Design Outlet protection wear Sleeve for body protection at flashing service

HP Control Valves Steam Control Valve (Type RVD) – Angle Design Examples Forged Body to meet exactly customer pipe without transition pieces Pressure seal bonnet separate sealing and control stage Long Cage Plug Multistage Reduction via cage plug. Noise damping by single and multistage controlled or uncontrolled silencer stages It looks like an standard control valve with a parabolic cone. The Pressure drop is very high. It works with only one stage for the reduction. Think about the water behind the Valve. The Water get into Steam in a low Pressure area. Then the vapor condenses. Replaceable Hardened Seat with Screwed fixing ring or Sealing Weld

HP Control Valves Steam Control Valve (Type RVD) – Globe Design for Vent Application Forged Body to meet exactly customer pipe without transition pieces Outlet Expander not needed Pressure seal bonnet Multistage Reduction to reduce noise by avoiding of critical expansion It looks like an standard control valve with a parabolic cone. The Pressure drop is very high. It works with only one stage for the reduction. Think about the water behind the Valve. The Water get into Steam in a low Pressure area. Then the vapor condenses. Replaceable Hardened Seat with screwed fixing ring or Sealing Weld

HP Preheater Protection System Product Overview HP Preheater Protection System

HP Preheater Protection System HP Preheater Protection Inlet 3-way Valve HP Preheater Protection Outlet 3-way Valve Pilot Valve Filter & Throttle Valves

HP Preheater Protection System Standard Flow Diagramm for Preheater Protection System - Redundant System Item Designation Qty 1 Change over valve 2 Quick stop valve 3 Control valve 4 Flow control valve 5 Filling valve 6 Stop valve 7 Level sensor 8 Solenoid valve Self-acting system without external actuator - Switching time can be adjusted individually Possibility is given between 1 to 10 seconds

HP Preheater Protection System Preheater Protection Valves Project Datteln – Germany 1,100 MW Coal fired Power Plant DN 500 Customer E. ON Pressure 390 bar Temp 322 °C

HP Preheater Protection System Preheater Protection Valves Project Riskulla– Sweden 70 MW Biomass Power Plant DN 150 Customer Siemens Pressure 156 bar Temp 184 °C