Seojeon_Control Valve Tech-1

SEOJEON VALMAC CO., LTD.

CONTROL VALVE TECHNICAL DATA

ISO 9001Certi. No. 99-925

() - 1 - (TEL.032-565-3121)

1. Control Valve

1.1 Control Valve Process Line , , Process Line (Control) (Positioner, Etc) Actuator .

1.2 DEFINITION OF PROCESS CONTROL

natural process control

artificial process control.

- A basic process-control system for regulating the level of liquid in a tank.

automatic regulatory procedures

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COMPOSITE DISCRETE/CONTINUOUS CONTROL

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1.3 FINAL CONTROL OPERATION

A process-control system showing the final control operations.

ControlSignal

Signalconversions Actuator

Finalcontrolelement

Process

Elements of the final control operation.

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1.4 Control Valve

1.4.1 Valve Body

Linear Type

Rotary Type

1.4.2 Valve Actuator

Pneumatic

Electric

Hydraulic

2Way3WayT-TypeAngle

Globe

Gate

Diaphragm

Dinch(Clamp)

Multifull - OrificeKnife

Full Bore - 23Way(TL Type)SegmentEccentric

Ball

Butterfly

PlugCylinder TypeTaper TypeCylinder(Piston)

DiaphragmCylinder(Piston)

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2. CONTROL VALVE

2.1 Control Valve

2.1.1 Process

2.1.2 Control Valve

2.1.3 Valve

2.1.4 Control Characteristic

2.1.5 Service Conditions

2.1.6 Fluid Characteristic

2.1.7

2.1.8 Range-ability

2.1.9 Shut-off Pressure

2.1.10 Seat Leakage

2.1.11 Emergency Valve Fail Position

2.1.12

2.1.13 Noise

2.1.14 Input Signal Power Supply

2.1.15 Pipe Specification Connection

2.1.16

2.1.17

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2.2 Control Valve Body Ports, Actuator, Accessory 3 , 3 .

2.2.1 Body Ports , , .Control Valve , , , Rangeability, Shut-off Pressure, , , , , Body .

1. Body Sizing Flowchart

Data

Cv Calculation

Yes

Cv

NoValve

Valve

RangeabilityLeakage

No

Body Size

Yes

No

Yes (Body, Trim, Packing)

Yes

Body Sizing

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2.2.2 Actuator, Process , Body

Trim .

2. Actuator Sizing Flow Char

Data

Size

Actuator Sizing

Body

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2.2.3 AccessoryControl Valve .

3. Accessory

Data

Valve

OpenClose

Valve

Accessory

Control On-off

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2.3

2.3.1 CvValve Control Valve Cv .Cv Valve Full Open 60(15.5) Valve 1psi(0.0703f/) 1 US Gallon(1Gallon=3.785) .

Cv 2Valve .

2.3.2 Kv Valve Cv Valve Full Open 530 Valve 1f/ /hr . (Cv : Cv=1.17Kv)

2.3.4 Cv (FCI/FLUID CONTROL INSTITUTE)

P2 P1 / 2 P2 P1 / 2

Cv= 1.17Q1 GP

GAS

(060) Cv=

Q16.9

GP(P1+P2) Cv=

Q G14.6P1

( ) Cv=

Q287

G( t+273)P(P1+P2) Cv=

Q G( t+273)249P1

Cv= W

13.7 P(P1+P2)Cv= W11.9P1

Cv= W(1+0.0013 t')13.7 P(P1+P2) Cv=

W(1+0.0013 t')11.9P1

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Cv

Cv VALVE Pv VALVE f/ AG FF VALVE G GAS Q /h PVC f/ AQ N/h Q'

(st'd 15 1atm) /h(VENA-CONTRACTA)

N/h= 273288 N/hPc f/ AFL

W /h X P/P1P P1-P2 f/ Abs XT P1 VALVE f/ Abs Y P2 VALVE f/ Abs Z t FK t' T1 273+t

2.3.5 Cv, : ISA / INSTRUMENT SOCIETY OF AMERICA

CHOKED FLOW

Cv=1.17 QFL G

(P1- P VC )

Cv=(Cv1+Cvg)(1+FmMaMp)

REDUCER

Cv=Cv+(Cv)

Cv=CvK Cv= Q'387P1Y GT1Z

X

2.3.6 CHOKED FLOW Cavitation Flashing FCI ANSI/ISA Cv .

PP"=FL2(P1=Pvc)

Cv

BODYTYPE

TRIMTYPE

FL FLOW OPEN FLOW CLOSE

GLOBESINGLE

Wing Guided 0.90 0.90Contoured 0.90 0.80Cage 0.90 0.80

GLOBEDOUBLE

Wing Guided 0.90Contoured 0.85

ANGLEContoured 0.90 0.80Cage 0.85 0.80Venturi 0.90

BALL Std. Bore 0.55Characterized 0.57BUTTER-FLY

60 Deg. Open 0.6890 Deg. Open 0.55

Cv=1.17 QFL G

P1-Pvc

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Pvc : Kgf/ A

FL : Control Valve , Valve .

2.3.7 CAVITATION FLASHINGControl Valve , , , Control Valve Cavitation Flashing. Cavitation Flashing Valve Mechanism Valve .

* Mechanism, Valve Trim , V P .

, Pv .

, (CAVITATION)Trim Body .

, ENERGY Valve Body .

, EROSION /( 70/) 1510000Hz . Cavitation Erosion .

=( )0.96- 0.28 PvPc Pv

= P1-P2P1-Pvc

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2.3.8

NORMAL FLASHING CAVITATION

P2>Pv and Pvc>Pv P2>Pv P2

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2.3.10 Cv Data

Trim Size(inch)

Single SeatedSTS Series Cage 3WaySTM, STD Butterfly

Ball

Controlled On-off Controlled On-off Metal Segment1/4 2.53/8 4.01/2 6.3 173/4 10 6.3 361 14 10 64 45

1-1/4 21 32 34 141-1/2 30 35 36 48 23 200 110

2 50 55 60 65 40 100 346 1802-1/2 85 95 100 110 63 170 675 280

3 125 135 140 150 90 290 1,130 4204 200 220 220 250 160 530 1,910 6205 310 330 275 300 250 860 2,7706 420 460 420 500 360 1,270 4,260 1,2608 700 720 820 840 640 2,550 8,420 2,03010 1,000 1,020 1,000 1,250 1,000 4,020 14,000 3,21012 1,440 1,460 1,440 1,680 1,440 6,090 23,380 4,490

* Micro Flow Control Valve

Valve Size (1/4", 3/8", 1/2", 3/4", 1", 1-1/2", 2")

ValveSize

TrimDesignation

CvCoefficient

NominalRange ability ValveSize

TrimDesignation

CvCoefficient

NominalRange ability

Linear Percent Linear Percent1/2 A 2.5 40:1 50:1 1/4 & 1/2 P3 .001 15:1 N/A1/2 B 2.0 40:1 50:1 1/4 & 1/2 P4 .0006 15:1 N/A1/2 C 1.25 40:1 50:1 1/4 & 1/2 P5 .0004 15:1 N/A1/2 D .80 40:1 50:1 1/4 & 1/2 P6 .00027 15:1 N/A1/2 E .50 40:1 50:1 1/4 & 1/2 P7 .00018 15:1 N/A1/4 & 1/2 F .32 30:1 40:1 1/4 & 1/2 P8 .00012 15:1 N/A1/4 & 1/2 G .20 30:1 40:1 1/4 & 1/2 P9 .00008 15:1 N/A1/4 & 1/2 H .13 30:1 40:1 1/4 P10 .00005 15:1 N/A1/4 & 1/2 I .08 30:1 40:1 1/4 P11 .000036 15:1 N/A1/4 & 1/2 J .05 30:1 40:1 1/4 P12 .000024 15:1 N/A1/4 & 1/2 K .03 25:1 N/A 1/4 P13 .000016 15:1 N/A1/4 & 1/2 L .02 25:1 N/A 1/4 P14 .00001 15:1 N/A1/4 & 1/2 M .01 25:1 N/A 1/4 P15 .000006 15:1 N/A1/4 & 1/2 N .006 25:1 N/A 1/4 P16 .000004 15:1 N/A1/4 & 1/2 O .003 25:1 N/A 1/4 P17 .0000027 15:1 N/A1/4 & 1/2 P1 .002 15:1 N/A 1/4 P18 .0000018 15:1 N/A1/4 & 1/2 P2 .0013 15:1 N/A

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2.4 CONTROL VALVE SEAT LEAKAGE CLASSIFICATIONS (In accordance with ANSI B16.104-1976)

LeakageClass

Designation

MaximumLeakageAllowable

Test Medium Test Pressures

Testing ProceduresRequired for

Establishing Rating

No test required provided user and supplier so agree.

0.5% of rated capacity Air or water at 50125 (1052)

4560 psig or max.operating differential, whichever is lower

Pressure applied to valve inlet, with outlet open to atmosphere or connected to a low head loss measuring device, full normal closing thrust provided by actuator.

0.1% of rated capacity As above As above As above

0.01% of rated capacity As above As above As above

0.0005 ml per minute of water per inch of port diameter per psi differential

Water at 50125 (1052)

Max. service pressure drop across valve plug, not to exceed ANSI body rating.(100 psi pressure drop minimum)

Pressure applied to valve inlet filling entire body cavity and connected piping with water and stroking valve plug closed.Use net specified max.actuator thrust, but no more, even if available during test. Allow time for leakage flow to stabilizer.

Not to exceed amounts shown in following table based on port diameter

Air or Nitrogen at 50125 (1052)

50 psig or max. rated differential pressure across valve plug, whichever is lower.

Actuator should be adjusted to operating conditions specified with full normal closing thrust applied to valve plug seat.Allow time for leakage flow to stabilize and use suitable measuring device.

* Class VI Seat Leakage Allowable (In accordance with ANSI B16.104 - 1976)

NOMINAL PORT DIAMETER LEAK RATEInches Millimeters ml Per Minute Bubbles Per Minute11-1/222-1/23468

2538516476

102152203

0.150.300.450.600.901.704.006.75

12346

112745

* Bubbles per minute as tabulated air an easily measured suggested alternative based on a suitable calibrated measuring device such as a 1/4-inch O. D. x 9.932-inch wall tube submerged in water to a depth of 1/8-inch. The tube end shall be cut square and smooth with no chamfer

or burrs and the tube axis shall be perpendicular to the surface of the water Other apparatus may be constructed and the number of bubbles per minute may vary from these shown, as long as they correctly indicate the flow in ml per minute.

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2.5

2.5.1 Inner Valve(Plug) Size Body Sizing . Line Size Body Size , Valve Erosion .

2.5.2 * , , Cavitation * , Plug Valve

2.5.3

2.5.4 Valve Body Size Body Size . D Cv Plug Size Reduced Trim . T=t+273

G

2.6 , , , , , Process Plant , Plant , Control Valve .

2.6.1 Control Valve 4 , . Control Valve Line .

()

6m/secGAS, VAPOR 150200m/sec

STEAM 5080m/sec 80120m/sec

U m/secQ /hSTEM /h

Q' /h(STD 15 1atm)

P2 f/At V /d , Valve

GAS VAPOR

STEAM

U=1.27 Q'( t+273)d 2 P 2

U=345 QVd 2

U=345 Qd 2

GAS

7070

STEAM

U=1.2 QGP 2

U=50 QP 2

U=1.2 QTGP 2

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VALVE LINE

1

CAVITATION GAS (STEAM, AIR, GAS) , VALVE .

VALVE

1. CONTROL VALVE (REDUCTION ELEMENT) 2. VALVE SILENCER .3. VALVE , RUGGING VALVE , .4. PROCESS VALVE .

2VALVE VALVE PLUG GUIDE ()

GUIDE

3PLUG VALVE PLUG

4 , VALVE TRIM (3000-8000Hz )

VALVE

2.6.2 Seojeon Control Valve SPLv .

SPLv GAS, Engineering Data P138150 Graph .

2.6.3 OSHA(Occupational Safety and health Act.-1974, Noise Standard) -Valve , 8 90dbA, SPL Level . - .1) P1Cv 70 Valve 90dbA .2) Silencer , Silencer , 1015dbA .3) (Reduction Element) , 20dbA .

GAS SPLv=dbP+dbCv+dbP/P1+db Sch+db+ dbM

SPLv=dbP+dbCv+ +db Schdb PP1-Pv

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4) Valve 10dbA .5) 2 5dbA .6) , , Silencer Valve 105dbA .

2.7 BODY 2.7.1 BODY MATERIAL/

JIS ASTM

FC20 A126 Cl. B CAST IRON Steam, Water, Air, Gas, Oil SCPH2 A216-WCB CARBON STELL ,

Steam, Water, Air, Gas, Oil SCPH21 A217-WC6 1Cr-0.5MoSCPH61 A217-C5 5Cr-0.5MoSCPL1 A352-LCB CARBON STEEL -5C SCPL11 A352-LC1 0.5MoSCS13 - 18Cr-8Ni-0.06C -196C

+800C ,

SCS13A A351-CF8 18Cr-8Ni-0.06CSCS14 - 18CR-12Ni-2.5Mo-0.06CSCS14A A351-CF8M 19Cr-11Ni-2.5Mo-0.06C

* Engineering Data P.159-161 .

* Control Valve , . , Creep , , Cr, Ni, Mo .

* .

* . , .

* CAVITATION, FLASHING Cavitation Flashing Cavitation Erosion . Cr-Mo Stainless .

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2.7.2 1) .2) .3) . Corrosion Data 4) . Erosion, Cavitation Erosion 5) . , 6) Maintenance , , 7) 8) Valve , .

2.7.3 , 1) (Corrosion)2) (Erosion) , Slurry 3) Erosion Corrosion .4) Cavitation Erosion Cavitation, Flashing 5) ,

, (), , ,

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2.7.4 VALVE BODY

MATERIAL LOWER()UPPER() MATERIAL

LOWER()

UPPER()

Cast Iron(FC) -29 210 Hastelloy B 371Ductile Iron(FCD) -29 343 Hastelloy C 538Carbon Steel(Grade WCB)(SCPH2) -29 538 Titanium 316

Carbon Steel(Grade LCB)(SCPL1) 10 343 Nickel -196 316

Carbon Moly(Grade WC1) -29 454 Alloy 20 -46 316

1-1/4, Cr-1/2 Mo(Grade WC6) -29 538 Type 416 Stainless Steel 40Rc -29 427

2-1/4, Cr-1 Mo(Grade WC9) -29 567 Type 440 Stainless Steel 60Rc -29 427

5 Cr-1/2 Mo(Grade C5) -29 593 17-4 PH -40 4279 Cr-1 Mo(Grade C12) -29 593 Alloy 6(Co-Cr) -273 8163-1/2 Ni(Grade LC 3) -101 343 Electroless Nickel Plating -273 427Aluminum -196 204 Chrome Plating -268 593Type 304 Stainless Steel -268 316 Aluminum Bronze -273 316Type 347 (Grade CF8C) -254 816 Nitrite(BunaN) -40 93

Type 316 Stainless Steel -268 316 Fluoroelastomer(Vition 1 and Fluorel 2) -23 204

Bronze -273 232 TFE -268 232Inconel -240 649 Nylon -73 93K Monel -240 482 Polyethylene -73 93Monel -240 482 Neoprene -40 82

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2.8 ACTUATOR Control Valve Valve Actuator .

2.8.1 1) 2) 3) 4) 5) Emergency6)

2.8.2 ACTUATOR SIZING Actuator , Actuator . Maker Actuator Calculation , Actuator Sizing Calculation . Process Pump +30% Actuator .

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2.9 ACCESSORY

2.9.1 Positioner1) Electric / Pneumatic Positioner2) Pneumatic / Pneumatic Positioner

2.9.2 Air Set1) Regulator2) Filter & Regulator

2.9.3 Solenoid Valve1) 3Way 2port2) 5Way 2port

2.9.4 Lock Up Valve

2.9.5 Volume Tank

2.9.6 Limit Switch1) Single2) SPDT3) DPDT

2.9.7 Booster Relary

2.9.8 Exhaust Valve2.9.10 Speed Controller

2.9.11 Air Pilot Valve

2.9.12 Hand Valve

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2.9.13 ACCESSORIES Control Valve , Process Accessories , Accessories .

Control On-Off Valve

Control

Valve Lock (SUP 2.8K ) Control

Valve , .

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Air Less Lock (SUP 4K) Air Less Lock (SUP 4K)

Air Less Close Air Less Open

Air Failure Close Air Failure Open

1. Control Valve 2. Control Valve 3. Positioner 4. Air set 5. Solenoid Valve ()

6. Pilot Lock Valve (CL-420) 7. Main Lock Valve (CL-523) 8. Limit Switch 9. Booster Relay10. Quick Exhaust Valve

11. Speed Controller 12. Air Valve 13. Volume Tank 14. Air Filter 15. Check Valve

, .Air Booster Relay, Quick Exhaust Valve, Speed Controller Accessories, Valve Air Connection .

Valve Limit Switch .

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2.10

2.10.1

M3/H

NM/H at 0C,1013mmbar T11.033(P273) M/H at 15C,1013mmbar T11.033(P1288)

kg/h G0.001T/H GT/min G60L/H 0.001L/min 0.00160Lb/H 0.4536G0.001

CFH (ft/ H) 0.02832CFM(ft/ min) 0.0283260

SCFH(Nft/ min) 0.02832[T11.033(P1288)]SCFM(Nft/ min) 0.0283260[T11.033(P1288)]

BBL/H() 0.159BBL/min 0.15960

GPM(gallon/min) 3.7850.00160

M/H(aT 15C,1013mmbar) NM/H at 15C,1013mmbar 288273

M/H P1288(T11.033)kg/H 23.63MWT/H 100023.63MWT/min 60100023.63MWL/H 0.001[P1288(T11.033)]L/min 0.00160[P1288(T11.033)]Lb/H 0.453623.63MW

CFH (ft/ H) 0.02832[P1288(T11.033)]CFM(ft/ min) 0.0283260[P1288(T11.033)]

SCFH(Nft/ min) 0.02832SCFM(Nft/ min) 0.0283260

BBL/H() 0.159[P1288(T11.033)]BBL/min 0.15960[P1288(T11.033)]

GPM(gallon/min) 3.7850.00160[P1288(T11.033)]

T1:273+tC(VALVE) G: MW:

() - 25 - (TEL.032-565-3121)

2.10.2

/A /A /G 1.033 Psi 0.0703f/G 1.033 PsiA 0.0703/A PsiG 0.07031.033/ kPaG 0.01021.033

mmHO 0.00011.033 kPaA 0.0102cmHO 0.0011.033 kPa 0.0102mHO 0.11.033 MPaG 10.201.033mmHg 735.6 MPaA 10.20cmHg 73.56 Pa 0.00001021.033inHg 24.5735.6 Lb/inG 0.07031.033mmAq 0.00011.033 Lb/inA 0.0703cmAq 0.0011.033 Lb/in 0.0703mAq 0.011.033 ata Bar G 1.0201.033 atm 1.033Bar A 1.020 atg 1.033

Torr 735.6

GAS

n=1 PnP1 T1Tn Z

/N 0, 1013mbar 1.293`/ 15, 1013mbar 1.225

n : GAS(/N)l : GAS(/) Pn : 1 1.0332 / Pl : GAS(/A) Tn : 273.2K Tl : (K ) Z : GAS

C=( 5/9 )(F 32) K=C273.16

F=( 9/5 ) C 32 R=F459.67

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3. INSPECTION

3.1 Final Drawing Spec. Sheet .

3.2 Valve , (Spec. Sheet) Maker Mill Sheet .

3.3 () , , , , , , , Name Plate .

3.4 DIMENSION . Flange (JIS, ANSI, JPI) .a. b. Flange c. Flange d. Flange PCDe. Bolt f. Control Valve

3.5 10/15 .

ANSI HYDROSTATIC TEST PRESSURES

MATERIAL GROUP NO.

SHELL TEST PRESSURES BY CLASS-ALL PRESSURES ARE GAGE150 300 400 600 900 1500 2500

psi bar psi bar psi bar psi bar psi bar psi bar psi bar1.11.21.31.41.51.71.91.101.131.142.12.22.32.42.52.62.7

450450400375400450450450450450425425350425425400400

3030282528303030303029292429292727

112511251050950105011251125112511251125110011009001100110010251025

7878726472787878787875756375757070

15001500140012501400150015001500150015001450145012001450145013501350

104104968696104104104104104100100831001009393

22252250210018752100225022502250225022502175217518002175217520252025

154156144128144156156156156156149149125149149140140

33503375277531503375337533753357335733753250325027003250325030253025

230233216192216233233233233233224224187224224209209

55755625522546505225562556255625562556255400540045005400540050505050

383388360320360388388388388388373373311373373348348

92759375870077258700937593759375937593759000900075009000900084008400

639647599532599647647647647647621621517621621580580

Note : These Pressures are subject to the limitations in Section 8.. MATERIAL GROUP ENGINEERING DATA

Valve Body Size 4B(100A)5B 10B12B 24B

1.51.53

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3.6

, . 1.2 10 .

.

3.7 Control Valve Valve , (Air Water) Valve .

) 1. Metal Disc On-Off Balance Double Valve Water .

2. ANSI Class VI (Bubble Tight) P14

* JIS

Flange

(/), ,

5K 10 12.510 20 2520 40 5030 60 7540 80 10063 126 160

Diaphragm 3.5 3Cylinder 7 5

* Valve

Spring DA (Supply)

RA Air Zero

Spring Less

* Cv ANSI Class

Water0.5% Water0.1% Water0.01% Air

0.0001% Air Air

0.0001% Air

*

Air (Q=N /min) * 1: Cv 0.01% * 2: Cv 0.5%

* ANSI Class .

*1

Q= 14.6 P 1CV G100060 0.0001

Water (Q= /min)*2

Q=CV P1.17 G

100060 0.005

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4. INSTALLATION

4.1 * Packing .* Valve Packing Nut Packing .* Control Valve , Valve (, , ) Valve Flange(Valve/Line) Valve Flange .* Control Valve . Plant Control Valve .

4.2 CONTROL VALVE * Positioner , Handle , Valve , Valve Space .* .* Control Valve .* Valve (Max. -1060)* . Pump, Engine, Compressor BoltNut , , Valve .4.3 CONTROL VALVE * Control Valve ., 30 , , Valve Size , Inner Valve Stem Guide Valve .* Control Valve Bypass

.

* Bypass Handle .1) Control Valve .2) Valve Size ( 8B)3) Process

5. MAINTENANCE

5.1 * Gland Packing . Valve Body , , , .

() - 29 - (TEL.032-565-3121)

* Stroke Valve Stem Stroke , Stem . .

1) Diaphragm , Seal Oring , Cylinder 2) 3) Positioner / Positioner Pilot .4) , Scale , Guide 5) Gland Packing Grease

* Grease *

5.2 * Body Body , Valve .* Valve Seat Valve Seat , , .* Inner Valve Inner Valve(Plug & Disc) , .* Guide Slide * Spring/Diaphragm/O-Ring .* Packing, Gasket Valve ( ) .

() - 30 - (TEL.032-565-3121)

5.3

, .

Compressor

.

Diaphragm Piston O-ring

Air set Filter Air set

Positioner .

Positioner Pilot Valve Pilot Valve

Diaphragm Cylinder

.

Valve Stem Guide .

Valve Body , .

Valve Port .

, ,

Valve Shaft Valve Shaft

.

Compressor

Air set , ,

. / Volume Tank

,

Valve Hunting() .

Positioner Hunting Positioner Pilot ( )

Valve Stem . , , Guide

Packing Packing

Valve

Valve .

Valve Close Hunting .

Valve . Cv Valve .

Valve Plug Close .

Valve . .

() - 31 - (TEL.032-565-3121)

.

Guide Valve . Valve, Guide

Valve, Plug, Stem, Diaphragm

.

Flashing . Valve .

Valve .

Valve .

Valve .

Valve .

, Valve .

.

Stroke .

Guide Slurry .

Valve

Springless Piston-Ring

Piston-Ring

Gland Packing Packing ()Packing Grease

Stroke .

. Positioner .()

Seal Seal O-Ring

Positioner Booster Relay

Valve Stem Full Close .

Valve Seat , , Seat

Seat ,

P1/P2

Valve Stem Full Close .

.

Port .

Guide Port .

Gland Packing .

Packing Nut . .

Packing

Valve , ,

Packing

Grease . Grease

() - 32 - (TEL.032-565-3121)

Documents

Seojeon_Control Valve Tech-1