choke valve

CCI 100 DPC DRAG® Wellhead Production Choke Valve

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nImproves well production

time

nEnhances control at wellhead

nReduces costs associated

with maintenance and repair

nImproves ability to

accommodate changes in

well operating conditions

nEnhances the safety and

reliability of production

facilities

DRAG® Technology for Severe Service Choke Valves

Today’s gas field environment means higher wellhead pressures with

aggressive fluids with entrained sand and other solid particles. A

conventional single stage choke valve is not suitable for this kind of severe

service. The need to maintain production rates means that frequent choke

repair or replacement is no longer acceptable. CCI has responded to this

need by developing the world’s first true severe service choke valve.

CCI has been solving severe service control valve problems in the oil and gas

industry for over 30 years. The CCI severe service choke uses a combination

of proven DRAG® velocity control technology and the best grades of

tungsten carbide material used in the industry to provide long trim life and

precise process control.

Severe service DRAG® choke valve delivers precise wellhead pressure control with superior reliability and life.

Figure 1: Exploded view of DRAG® choke disks showing flow path

Typical Conventional Valve Problems Solved by DRAG® Technology

RequirementConventional Choke Valve

Root Cause(s)

Operation at high pressure differentials for extended periods of time.

Production time significantly reduced due to frequent repair or replacement of trims and/or bodies.

Inadequate control of fluid velocities resulting in rapid damage to trim components.

Improved control at wellhead.

Inability to precisely control pressure and/or flow.

Poor rangeability inherent to design. Inadequate control of fluid velocities resulting in high erosion rates and rapid damage to control surfaces of trim components.

Improved resistance to erosion due to sand and other particulate matter entrained in fluids.

Production time significantly reduced due to frequent repair or replacement of trims and/or bodies.

Inadequate control of fluid velocities resulting in high erosion rates and rapid damage to trim components. Poor material selection.

Ability to accommodate significant changes in well operating conditions over time.

Replace existing valve to address new well operating conditions.

Poor rangeability. Inability to significantly modify existing valve.

Safety and reliability for increasingly demanding and challenging environments.

Operation of facility and health of employees compromised due to rapid erosion to pressure boundary parts, severe mechanical vibration and excessive noise.

Inadequate control of fluid velocities.

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Proven DRAG® Technology for Effective Control of Fluid Velocities

CCI’s DRAG® disk stack controls flowing velocities throughout the valve trim

by forcing the process fluid to follow a tortuous path of right angle turns.

The resistance to flow provided by these turns (or stages) limits the trim exit

velocity to a safe level, regardless of the pressure drop. The DRAG® choke

valve eliminates problems resulting from excessive fluid velocities such as

trim and body erosion, noise, vibration and poor process control. The fluid

velocities within the trim of CCI choke valves are typically 1/3 to 1/4 that

of conventional single stage chokes. Velocity control protects the trim from

erosion and increases the trim life many fold.

Highly flexible configuration allows for future depleted well conditions.

The rate of erosion has been shown to be proportional to the velocity of the

fluid by the third to fifth power, which suggests that the erosion rate would

be reduced by eight times if the fluid velocity is reduced by half based on a

proportionality to the third power.

Proven Materials of Construction for Superior Wear Resistance

CCI chokes utilize solid tungsten carbide trim. The plug is solid tungsten

carbide, not just carbide tipped. The disk stack provides for multi-stage

letdown and is made from solid tungsten carbide, an industry first. The seat

ring is provided with a tungsten carbide venturi, allowing for a controlled,

erosion resistant expansion into the choke outlet and downstream piping.

Proven Engineered Solutions for Maximum Design Flexibility

The CCI 100DPC Production Choke Valve is designed to accommodate a

variety of trim sizes and throttling elements (i.e. disk stacks and cages) in

order to accommodate changes to well operating conditions that will occur

over time. Instead of having to purchase an entirely new valve, CCI can

simply re-fit the existing valve with an appropriate trim set that will properly

address the new operating conditions.

Table 1: Comparison of energy at trim exit for gases and liquids multi-stage vs. single-stage

Gas - Velocity Head kPa (psi)

Liquid - Velocity Head meter/sec (ft/sec)

PBar (psi)

6 Stages 1 Stage 6 Stages 1 Stage

400 (5800) 6400 (933) 25200 (3675) 71 (233) 280 (918)

200 (2900) 1600 (233) 21500 (3135) 50 (164) 197 (646)

100 (1450) 700 (102) 10700 (1560) 35 (115) 138 (453)

P1

V1

Velocity/Energy Limit Unacceptable

Acceptable

P

V

Pvc

Vvc vc = vena contracta

P1

V1

Unacceptable

AcceptableV

PVelocity/Energy Limit

Figure 3: Single-stage letdown

Figure 2: Multi-stage letdown

Figure 4: DRAG® high capacity hybrid trim (cage and disk stack)

Figure 5: DRAG® total velocity trim (full disk stack)

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Bolted Bonnet

Easy Maintenance

Pressure Balancing Seals

Reduces actuator/handwheel force

Provided with dual wiper rings to keep solids out of sealing areas

Solid Tungsten Carbide Venturi Seat

Solid tungsten carbide venturi seat in high turbulence zones

Venturi seat transition flows smoothly into valve outlet and piping

Solid Tungsten Carbide Plug

Solid tungsten carbide eliminates galling

Excellent erosion resistance

Large balance holes will not clog

Solid Tungsten Carbide Disk Stack

Solid tungsten carbide for erosion resistance

Multi-step letdown to control velocity, erosion and noise

Large flow passages, easily handle solids and dirty fluids

CCI DRAG® choke features ensure extended operating life.

Seals, Gaskets & Stem

Packing materials selected are explosive decompression resistant

Dual Body Seals

For high integrity toxic services

DRAG® Disk Stack

Up to six stages of velocxity control

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BenefitsCCI 100 DPC

DRAG® Choke Valve

Competitors

1 Solid tungsten carbide plug, seat and disk stack eliminates erosion and galling and extends performance life for maximum productivity.

2 Large flow passages to easily handle solids means continued reliable performance.

3 Multi-step letdown to control velocity, erosion, noise, and vibration for minimum down time and safety.

4 Increased rangeability due to a longer stroke means superior performance and control.

5 Dual scrapers prevent solids from entering sealing areas for reduced maintenance.

6 Venturi seat transition assures smooth flow into valve outlet and piping for problems downstream.

7 Easy maintenance, quick-change trim means no trim parts are welded or screwed into the body.

8 One choke body can handle changing wellhead conditions by swapping trim for less down time.

9 Up to 6 stages of DRAG® velocity control ( with total velocity control trim disk stack.)

10 All trim seals are PTFE. PTFE is explosive decompression resistant.

Use this checklist to evaluate the benefits of the CCI severe service choke valve.

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ComponentItem No.

StandardNACE MR0175-2002NACE MR0103-2005

NACE MR0175-2005/ISO 15156-2 2003

/Cor.2.2005(see Note 4)

Comments

Body 1

ASTM A958-SC4130ASTM A352-LCBASTM A216-WCCA995-4A (Duplex)

ASTM A958-SC4130ASTM A352-LCBASTM A216-WCCA995-4A (Duplex) See Note 1

Bonnet 2AISI 4130

F51/S31803A350-LF2

AISI 4130F51/S31803A350-LF2

Disk Stack 3Solid Tungsten

CarbideSolid Tungsten

Carbide

Seat Housing/

Insert4

17-4/Solid Tungsten Carbide

Inconel 718/Solid Tungsten Carbide

Plug 5Solid Tungsten

CarbideSolid Tungsten

Carbide

Stem 6 17-4PH Inconel 718 See Note 2

Seals 7 PTFE PTFE

Body to Bonnet Seal

8 17-4PH Inconel 625

Component Materials of ConstructionPressure Rating ANSI 1500-2500, API 5000-10000

Actuator TypeManual handwheel, pneumatic diaphragm or piston, pneumatic stepper, electric, hydraulic

Standard Quality Level API 6A PSL1 Optional Quality Levels PSL2 and 3 and NACE MR0175Standard Temperature

Ratings-50 to +250 degF (-45 to +121 degC)

(API 6A temperature classifications L, P, R, S, T, U)Valve Characteristics Modified equal percent

Standard Shut-Off Class ANSI/FCI Class IVOptional Shut-Off Class ANSI/Class V

Figure 9: Stepper Motor Actuator

Figure 8: Pneumatic Piston

Figure 7: Handwheel Actuator

Figure 6: Pneumatic Diaphragm

(1) ASTM A958-SC4130, A352-LCB, and A216-WCC are available with or withoput an Inconel 625 inlay for corrision resistance.

(2) Inconel 718 is selected for stem material when API material classes FF or HH is specified.(3) Seals are Explosive Decompression Resistant.(4) Certification to NACE is dependant on fluid composition and temperature.

2

6

5

3

4

1

8

7

Note:Valve body material is cast as standard. Forged bodies with weld on flanges are available. Consult factory for options.

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Table 2: Materials

Table 3: Performance Data

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(1) Type of end connections include through-hole flanges and hubs

(1) Type of end connections include through-hole flanges and hubs (2) For optional sizes and pressure ratings consult factory.

Figure 11: DRAG® total velocity control trim (full disk stack)

Figure 10: DRAG® high capacity hybrid trim (cage and disk stack)

CCI DRAG® choke trim provides performance and reliability regardless of your wellhead life cycle.

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DRAG® High Capacity Hybrid Trim (Cage and

Disk Stack)

Standard End Connections Sizes for Specified Trims (See Note 1)

DRAG® Total Velocity Control Trim

(Full Disk Stack)) Stroke Length (inches)

Trim Size Rated CvBody Rating 1500 ANSI

Body Rating 2500 ANSI

Body Rating API 5000

Body Rating API 10000

Trim SizeRated

Cv

1.0 18 1 1/2, 2, 3” 1 1/2, 2, 3”2 1/16, 2 9/16,

3 1/8”1 13/16, 2 1/16, 2 9/16, 3 1/16 ”

1.0 9 1.5

1.75 50 3, 4” 3, 4”2 9/16,

3 1/8, 4 1/16”2 9/16, 3 1/16,

4 1/16”1.75 24 2.5

2.5 100 4, 6” 4, 6”3 1/8, 4 1/16,

5 1/8”3 1/16, 4 1/16,

5 1/8”2.5 31 2.5

3.25 160 4, 6” 4, 6”4 1/16, 5 1/8,

7 1/16”4 1/16, 5 1/8,

7 1/16”3.25 50 3.5

4.0 250 6, 8” 6, 8”5 1/8,

7 1/16, 9”5 1/8,

7 1/16, 9”4.0 60 3.5

5.0 335 6, 8, 10” 6, 8, 10” 7 1/16, 9” 7 1/16, 9” 5.0 105 4.5

Table 4: Cv, Stroke, and End Connections

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Trim Size

ANSI Class

Inlet x Outlet Size

Centerline to Inlet Face Dim A

Centerline to Outlet Face Dim B

RF RTJ RF RTJ

1.75

15003 x 3 10.12 in (257 mm) 10.19 in (259 mm) 10.12 in (257 mm) 10.19 in (259 mm)3 x 4 10.12 in (257 mm) 10.19 in (259 mm) 10.38 in (264 mm) 10.44 in (265 mm)4 x 4 10.38 in (264 mm) 10.44 in (265 mm) 10.38 in (264 mm) 10.44 in (265 mm)

25003 x 3 12.12 in (308 mm) 12.25 in (311 mm) 12.12 in (308 mm) 12.25 in (311 mm)3 x 4 12.12 in (308 mm) 12.25 in (311 mm) 13.00in (330 mm) 13.19 in (335 mm)4 x 4 13.00 in (330 mm) 13.19 in (335 mm) 13.00in (330 mm) 13.19 in (335 mm)

2.5



3.25



4


25006 x 6 18.50 in (470 mm) 18.75 in (476 mm) 18.50 in (470 mm) 18.75 in (476 mm)6 x 8 18.50 in (470 mm) 18.75 in (476 mm) 22.25 in (565 mm) 22.56 in (573mm)8 x 8 22.25 in (565 mm) 22.56 in (573 mm) 22.25 in (565 mm) 22.56 in (573mm)

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1500

6 x 6 16.50 in (419 mm) 16.62 in (422 mm) 16.50 in (419 mm) 16.62 in (422 mm)6 x 8 16.50 in (419 mm) 16.62 in (422 mm) 18.12 in (460 mm) 18.31 in (465 mm)8 x 8 18.12 in (460 mm) 18.31 in (465 mm) 18.12 in (460 mm) 18.31 in (465 mm)8 x 10 18.12 in (460 mm) 18.31 in (465 mm) 21.50 in (546 mm) 21.69 in (551 mm)10 x 10 21.50 in (546 mm) 21.69 in (551 mm) 21.50 in (546 mm) 21.69 in (551 mm)

2500

6 x 6 20.50 in (521 mm) 20.75 in (527 mm) 20.50 in (521 mm) 20.75 in (527 mm)6 x 8 20.50 in (521 mm) 20.75 in (527 mm) 22.25 in (565 mm) 22.56 in (573mm)8 x 8 22.25 in (565 mm) 22.56 in (573mm) 22.25 in (565 mm) 22.56 in (573mm)8 x 10 22.25 in (565 mm) 22.56 in (573mm) 28.00 in (711 mm) 28.44 in (722 mm)10 x 10 28.00 in (711 mm) 28.44 in (722 mm) 28.00 in (711 mm) 28.44 in (722 mm)

Table 5: Face to Face Dimensions

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Trim Size

API Class

Inlet x Outlet Size

Centerline to Inlet Face Dim A

Centerline to Outlet Face Dim B

6B 6BX 6B 6BX

1.75

5000

2 9/16 x 2 9/16 9.69 in (246 mm) - 9.69 in (246 mm) -2 9/16 x 3 1/8 9.69 in (246 mm) - 10.19 in (259 mm) -3 1/8 x 3 1/8 10.19 in (259 mm) - 10.19 in (259 mm) -3 1/8 x 4 1/16 10.19 in (259 mm) - 10.44 in (265 mm) -4 1/16 x 4 1/16 10.44 in (265 mm) - 10.44 in (265 mm) -

10000

2 9/16 x 2 9/16 - 11.38 in (289 mm) - 11.38 in (289 mm)2 9/16 x 3 1/16 - 11.38 in (289 mm) - 12.00 in (305 mm)3 1/16 x 3 1/16 - 12.00 in (305 mm) - 12.00 in (305 mm)3 1/16 x 4 1/16 - 12.00 in (305 mm) - 13.00 in (330 mm)4 1/16 x 4 1/16 - 13.00 in (330 mm) - 13.00 in (330 mm)

2.5

5000


10000


3.25

5000


10000


4

5000

5 1/8 x 5 1/8 13.94 in (354 mm) - 13.94 in (354 mm) -5 1/8 x 7 1/16 13.94 in (354 mm) - 14.62 in (371 mm) -7 1/16 x 7 1/16 14.62 in (371 mm) - 14.62 in (371 mm) -

7 1/16 x 9 14.62 in (371 mm) - 18.31 in (465 mm) -9 x 9 18.31 in (465 mm) - 18.31 in (465 mm) -

10000

5 1/8 x 5 1/8 - 14.74 in (374 mm) - 14.74 in (374 mm)5 1/8 x 7 1/16 - 14.74 in (374 mm) - 16.18 in (411 mm)7 1/16 x 7 1/16 - 16.18 in (411 mm) - 16.18 in (411 mm)

7 1/16 x 9 - 16.18 in (411 mm) - 20.38 in (518 mm)9 x 9 - 20.38 in (518 mm) - 20.38 in (518 mm)

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50007 1/16 x 7 1/16 16.62 in (422 mm) - 16.62 in (422 mm) -

7 1/16 x 9 16.62 in (422 mm) - 18.31 in (465 mm) -9 x 9 18.31 in (465 mm) - 18.31 in (465 mm) -

100007 1/16 x 7 1/16 - 18.18 in (462 mm) - 18.18 in (462 mm)

7 1/16 x 9 - 18.18 in (462 mm) - 20.38 in (518 mm)9 x 9 - 20.38 in (518 mm) - 20.38 in (518 mm)

Table 5: Face to Face Dimensions (continued)

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Trim Size

ANSI Class

Inlet x Outlet Size

Max Overall Height with Manual Override Dim C

inch (mm)

“Max Overall Height w/out” Manual

Override Dim C inch (mm)

Weight lbs (kg) w/ Act

Weight lbs (kg)

Bare Stem

1.75

15003 x 3

68 (1727) 58 (1473)634

(288)

324 (147)3 x 4 349 (159)4 x 4 374 (170)

25003 x 3

68 (1727) 58 (1473)849

(386)

484 (220)3 x 4 534 (243)4 x 4 589 (268)

2.5

15004 x 4

69 (1753) 59 (1499)904(411)

444 (202)4 x 6 544 (247)6 x 6 644 (293)

25004 x 4

69 (1753) 59 (1499)1377(626)

697 (317)4 x 6 907 (412)6 x 6 1117 (508)

3.25

15004 x 4

72 (1829) 61 (1549)1081(491)

626 (285)4 x 6 726 (330)6 x 6 821 (373)

25004 x 4

72 (1829) 61 (1549)1704(775)

994 (452)4 x 6 1224 (556)6 x 6 1444 (656)

4

15006 x 6

72 (1829) 61 (1549)1564(711)

1004 (456)6 x 8 1154 (525)8 x 8 1304 (593)

25006 x 6

74 (1880) 61 (1549)2463(1120)

1728 (785)6 x 8 1968 (895)8 x 8 2203 (1001)

5

1500

6 x 6

76 (1930) 63 (1600)2584(1175)

1464 (665)6 x 8 1599 (727)8 x 8 1739 (790)8 x 10 1994 (906)10 x 10 2249 (1022)

2500

6 x 6

76 (1930) 63 (1600)4499

(2045)

2412 (1096)6 x 8 2607 (1185)8 x 8 2802 (1274)8 x 10 3402 (1546)10 x 10 3924 (1784)

Technical specifications and materials.

* Dim “D” is 8 in (200 mm) Required for actuator removalTable 6: Overall Heights and Weights

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Trim Size

API Class

Inlet x Outlet Size

Max Overall Height with Manual Override

Dim C inch (mm)

“Max Overall Height w/out” Manual

Override Dim C inch (mm)

Weight lbs (kg)Weight lbs (kg)

Bare Stem

1.75

5000

2 9/16 x 2 9/16

68 (1727) 58 (1473)634

(288)

304 (138)2 9/16 x 3 1/8 314 (143)3 1/8 x 3 1/8 324 (147)3 1/8 x 4 1/16 349 (159)4 1/16 x 4 1/16 374 (170)

10000

2 9/16 x 2 9/16

70 (1778) 58 (1473)769

(350)

379 (172)2 9/16 x 3 1/16 404 (184)3 1/16 x 3 1/16 424 (193)3 1/16 x 4 1/16 469 (213)4 1/16 x 4 1/16 509 (231)

2.5

5000

3 1/8 x 3 1/8

69 (1753) 59 (1499)839

(381)

384 (175)3 1/8 x 4 1/16 414 (188)4 1/16 x 4 1/16 444 (202)4 1/16 x 5 1/8 514 (234)5 1/8 x 5 1/8 579 (263)

10000

3 1/16 x 3 1/16

71 (1803) 59 (1499)917

(417)

477 (217)3 1/16 x 4 1/16 517 (235)4 1/16 x 4 1/16 557 (253)4 1/16 x 5 1/8 607 (276)5 1/8 x 5 1/8 657 (299)

3.25

5000

4 1/16 x 4 1/16

72 (1829) 61 (1549)1001(455)

576 (262)4 1/16 x 5 1/8 636 (289)5 1/8 x 5 1/8 701 (319)5 1/8 x 7 1/16 721 (328)7 1/16 x 7 1/16 741 (337)

10000

4 1/16 x 4 1/16

74 (1880) 61 (1549)1594(725)

834 (379)4 1/16 x 5 1/8 874 (397)5 1/8 x 5 1/8 919 (418)5 1/8 x 7 1/16 1129 (513)7 1/16 x 7 1/16 1334 (606)

4

5000

5 1/8 x 5 1/8

74 (1880) 61 (1549)1429(650)

844 (384)5 1/8 x 7 1/16 869 (395)7 1/16 x 7 1/16 889 (404)

7 1/16 x 9 1029 (468)9 x 9 1169 (531)

10000

5 1/8 x 5 1/8

74 (1880) 61 (1549)2503(1138)

1113 (506)5 1/8 x 7 1/16 1283 (583)7 1/16 x 7 1/16 1453 (660)

7 1/16 x 9 1688 (767)9 x 9 1928 (876)

5

50007 1/16 x 7 1/16

76 (1930) 63 (1600)1874(852)

1304 (593)7 1/16 x 9 1419 (645)

9 x 9 1539 (700)

100007 1/16 x 7 1/16

76 (1930) 63 (1600)3102

(1410)

2042 (928)7 1/16 x 9 2237 (1017)

9 x 9 2427 (1103)

Table 6: Overall Heights and Weights (continued)

Contact us at: [email protected]

For sales and service locations worldwide, visit us online at: www.ccivalve.com

Throughout the world, customers rely on CCI companies to solve their severe service control valve problems. CCI has provided custom solutions for these and other industry applications for more than 80 years.

DRAG is a registered trademark of CCI.©2008 CCI 807 04/08 5K

choke valve

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