Type code Type code Ordering example 1 Series DA4S Steam desuperheater DA4S 2 Nozzle size A Kv/Cv = 0.22/0.25 B Kv/Cv = 0.6/0.69 C Kv/Cv = 1.6/1.8 C D Kv/Cv = 3.0/3.4 E Kv/Cv = 4.7/5.4 3 Pressure class CL1500 ANSI 1500 CL 1500 Effective diaphragm size = 4 Actuator MSDIII 290RA MSDIII 290RA 290mm 5 Handwheel (blank) No handwheel HW HW Handwheel Painting Part Procedure Description/standard DFT Colour Desuperheater Cleaning Blast cleaning Sa 2 ½ (ISO 8501-1:2007) Jotun: Solvalitt Alu Top coat Corrosion class ISO 12944-5 C3 (C4 at high 2x20 μm Aluminium temperatures) Actuator Cleaning Blast cleaning to Sa 2 ½ (ISO 8501-1:2007) Primer NOROO: RF-6800B 15 μm Black Top coat KCC: PX 7576 65 μm Blue Quality control plan Procedure / standard Process / activity PED / EN 12516-2 ASME B16/34 PED / ASME B16.34 EN 12516-2 Design code ASME B16.34 ASME B16.34 (Directive 97/23/EC) Mechanical properties / chemical analysis (pressurised EN ASTM (ASME II) matierals) Welding procedure qualification EN 15614-1 / EN 288-3 ASME IX ASME IX PWHT According to internal WPS Design / manufacture PRI 355 (ASME VIII PRI 355 (ASME VIII RT examination EN ISO 10675-1 (ASME B16.34 2.1.6)) (ASME B16.34 2.1.6)) UT examination (on welds not PRI 355 (ASME VIII PRI 355 (ASME VIII EN ISO 11666 NDT accessible for RT) (ASME B16.34 2.1.6)) (ASME B16.34 2.1.6)) MT examination (on welds not PRI 355 (ASME VIII PRI 355 (ASME VIII EN ISO 23278 accessible for RT or UT) (ASME B16.34 2.1.6)) (ASME B16.34 2.1.6)) Hydrostatic pressure test Seat leakage test Functional test According to internal procedures Visual and dimensional check Painting and preservation Documentation Quality control plan Assembley / testing Affixing of CE-mark Directive 97/23/EC N/A Directive 97/23/EC Declaration of conformity Directive 97/23/EC N/A Directive 97/23/EC Final inspection According to internal procedures IMI CCI Australia IMI CCI China IMI CCI Korea IMI CCI SriCity 33 South Corporate Avenue B3, 303 Xinke Road 14 Dangdong 2-ro No 900 North R-1 Sri City SEZ Rowville Qingpu Munsan-eup Sathyavedu Mandal Melbourne 3178 Shanghai Paju-si Chitoor District Australia 201707 Gyeonggi-do Andhra Pradesh 517588 PR China Korea 10816 India Tel: +61 3 9213 0800 Tel: +86 21 3973 8000 Tel: +82 2 792 1877 Tel: +91 85 7639 8000 Fax: +86 21 6495 0620 Fax: +82 2 792 1878 Fax: +91 85 7639 8035 IMI CCI Austria IMI CCI Dubai IMI CCI Malaysia IMI CCI Sweden Lemböckgasse 63/1 P.O. 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It is inserted in a steam line of minimum diameter DN 150 mm/6". The nozzle is inserted in the steam pipe through a flanged pipe stud that is welded to the steam pipe. Key features The cooling water from the water pipe The inlet or admission holes in the injection enters the area between the front part of the cage are arranged so that, from the control inlet pipe and the injection nozzle. point of view, a good characteristic is obtained. The cooling water that enters The control plug is guided in the injection the injection cage through the tangentially nozzle. The injection nozzle and the sealing positioned admission holes, is induced into surfaces of the control plug are lapped a fast rotation around the tip of the plug, it is together to ensure tight shut-off. When subsequently ejected through the nozzle as the plug is in the closed position all water a rapidly evaporating coneshaped mist. The admission holes in the injection cage will quantity of injected cooling water depends also be closed. As the plug lifts from the on the number and size of the ports that are injection nozzle seat, it simultaneously opened up by the control plug. The signal p opens up a number of water admission from the temperature transmitter located holes in the injection cage. The number of downstream of the desuperheater controls free ports will therefore be directly related to the position of the plug via the actuator. the lift of the plug. Flow Benefits > Injection nozzle with variable geometry > High reliability and resistance against wear – only one moving part – the stem and > High rangeability, 40:1 (water) and high control plug. Hard-faced control plug and steam cooling efficiency injection nozzle with inner parts of high > Combined control valve and injection quality alloy steel. nozzle in one unit Stroke > Simple installation – in vertical, horizontal > Tight shut-off or sloping pipes – min size, DN 150 mm/6". Installation example 3 1. Temperature sensor 4 2. Temperature transmitter 5 3. PID temperature controller 2 4. DA-4 Steam Desuperheater 5. Spray water inlet 6. Superheated steam 7. Desuperheated steam 1 9 8. Condensate trap / drain 9. Control thermometer 6 7 8 Product specification Capacity Max steam temperature Other options 7 different injection nozzle sizes: A, B, C, D, 550ºC (1022ºF) The DA4S is a standardised product, with E, EO and F with following max. Kv/Cv- options limited to what is described within values: Materials this document. If customised adaptations A = 0.22/0.25, B = 0.6/0.69, C = 1.6/1.8, Housing Low alloy steel (e.g. but not limited to accessories, D = 3.0/3.4, E = 4.7/5.4, EO = 6.4/7.4, F = CS17CrMo55, ~ equiv. to painting, materials, etc.) are desired, IMI 9.7/11.2 ASTM A217WC6 CCI recommends the DA4. Plug Stainless steel X20Cr13, Note that any price quoted for the DA4S Control characteristic (Integrated ~ equiv. to AISI 420, assumes strict adherence to the control valve) surface hardened specifications described within this Almost equal percentage (logarithmic) Atomiser Stainless steel X20Cr13, document. ~ equiv. to AISI 420, Control range (Water) surface hardened 40:1 Nozzle head Steel X90 CrMoV 18, ~equiv. to ASTM 440B. Pressure class Stuffing box Graphite DIN PN 16 - 400 packing ANSI 150 - 2500 Dimensions Mi n. removal clearance 500 mm DA4-X CL1500 / MSDIII 290RA Connections D2 (actuator without hand wheel) L1 540 mm ANSI B16.5 EN1759 Min. removal clearance 500 mm M 235 mm Steam 4” RF CL1500 DN100 PN250 D1 N 500 mm Water 2” RF CL1500 DN50 PN250 0 O 210 mm 10 ± K 78 mm L2 0 D1 300 mm 10 ± Weight 120 kg L1 DA4-X CL1500 / MSD290RA HW (actuator with hand wheel) ±5 ±5 M L2 700 mm M M 235 mm N 500 mm O≤ 210 mm K K ±5 K 78 mm ±5 N N D2 300 mm Weight 125 kg O ±5 O ±5 Pneumatic schematic 6 1. Tubing 2. Fittings 3. Filter regulator 4. Positioner 5. Limit switch 6. Actuator 1 3 4 5 2 Applications 14 13A C C 3 G 8 E C 1D A2 E 11 A3 6B 4D 6 B B6 12F D7 D7 7F B5 E9 F10 1. Main steam line 6. DA-4 process steam desuperheater 11.