needle kf valve brochure

8/12/2019 NEEDLE KF Valve Brochure

1/11KF reserves the right to change designs, materials or specifications without notice or without obligation to furnish or install such changes on products previously or subsequently sold

KF O-Ring & Packed

Stem Style NeedleValve

Engineering Solutions for the World's Flow Control Industry


2/11

1KF reserves the right to change designs, materials or specifications without notice or without obligation to furnish or install such changes on products previously or subsequently sold

The KF Commitment to Excellence...For over 30 years, we at KF Industries have been dedicat-ed to providing our customers with technically superiorproducts that are designed for the most severe applications.Our broad range of valve designs and sizes, constructed of the highest quality materials, reliably service a diverserange of industrial and oilfield markets.With precision engineering and manufacturing techniques,coupled with outstanding customer service, KF Industriesis your source for flow control solutions.The KF Needle ValveKF Needle Valves are state-of-the-art valves, designed foroilfield, industrial, and comparable services where highpressure, abrasive-laden gases and fluids cause early failureof all but the most rugged equipment.KF Needle valves combine rugged construction, depend-ability, and leak-free performance at high and low pres-sures. These valves offer exceptional regulating propertiesand high flow capacities in the full open position.Applications include: Liquefied petroleum gas facilities,natural gas installations, wellhead applications, and sys-tems difficult to shut off due to solid contaminants. Valvesare available with metal-to-metal or a replaceable nylonseat. Materials of construction include Carbon Steel with316 Stainless Steel Stem, and is optionally available in all316 Stainless Steel.

Ratings Soft seated valves (O-ring and Packed Style) are rated6000 psi at 200F. O-ring metal seated valves with standard Buna N StemSeal are rated 10,000 psi at 200F. Optional Viton StemSeal assemblies are rated up to 400F. Packed Stem metal seated valves with standard Teflonpacking are rated 10,000 psi at 200F. Optional HT(Grafoil) packing is rated up to 1000F.

Table of ContentsO-Ring Style: General Design Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2O-Ring Style: Standard Configuration, Dimensions and Part Numbers. . . . . . . . . . . . . . . . . . . . . . . 3O-Ring Style: Gauge and Angle Configuration, Dimensions and Part Numbers. . . . . . . . . . . . . . . . . 4O-Ring Style: Parts, Materials and Engineering Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Packed-Stem Style: General Design Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 6Packed-Stem Style: Standard Configuration, Dimensions and Part Numbers. . . . . . . . . . . . . . . . . . . 7Packed-Stem Style: Gauge and Angle Configuration, Dimensions and Part Numbers. . . . . . . . . . . . 8Packed-Stem Style: Parts, Materials and Engineering Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 9

Special Features Body: Oversized extra heavy body that resists abuse andprovides utmost protection against corrosion and erosion.Precision machined seat pocket and bonnet retainingthreads assure perfect alignment and sealing atbonnet/body connection and stem/seat interface. A BonnetLocking Pin secures the bonnet and body against acciden-tal disassembly. Bonnet: Precision threading, both external and internal,assure proper alignment and a sturdy leak-proof connectionwith the body. A metal-to-metal backseat is provided foradditional stem sealing security when the valve is full open.

Stem: Stem material is 316 Stainless Steel with a preci-sion ground conical seating tip. Threads are permanentlylubricated with a high quality anti-seize compound whichincreases service life by preventing galling and freeze up.Fourteen pitch threads provide uncompromised load bear-ing capacity while maintaining excellent flow regulationcharacteristics. Seat: Soft seat valves include a one piece, replaceablenylon seat with retaining lug. This lug provides absoluteprotection against seat failures caused by seat rotation.


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O-Ring Style Features

A. Back seat stem design

B. Metal-to-Metalstem seating

C. O-ring stem seal

D. Replaceable seat

A. Back seat stem design helps prevent fire feeding leakage. Highstrength stem threads provide extended life and low torque operation.B. Positive metal-to-metal stem seating arrangement in all metal seatvalves assure drop-tight sealing up to 10,000 psi.C. Abrasion resistant, 90Durometer O-ring stem seal and back-up ringisolates corrosive flow media from critical stem thread areaD. Tough nylon, replaceable seat in all soft seat valves is secured by ananti-rotation lug.

Oversized Comfortable Handle

Large, clearlymarked bodyincludes closelycontrolled threadedpipe connections.

Durable, color-codedweather sealRed: Hard-seat valveBlue: Soft-seat valve

Bonnet Lock Pin

Large straight through orifice allowshigh flow capacity.


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KF O-Ring Style, Standard Configuration Needle Valves

B B

F

A

D

G

C

E

Orifice

OpenTravel

Dimensional Data and Assembly Part Numbers, Series 23 & 24 Metal Seated Valve Assemblies1 / 4" and 1 / 2" 10,000 lbs. max. WOG at 200F,3 / 4" and 1" 6,000 lbs. max. WOG at 200F

Size ConnectionsAssembly Part Numbers Wt. Cv

Dimensional Data

NPT Carbon Steel 316 Stainless NACE* Lbs. A B C D E F G

1 / 4"Double Female 23-14 24-14 N24-14 1.65 .7 3 5 / 8 2 7 / 8 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4

Female-Male 23-145 24-145 N24-145 1.53 .7 3 5 / 8 31 / 4 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4

Double Female 23-12 24-12 N24-12 1.65 .7 3 5 / 8 27 / 8 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4

1 / 2"Female-Male 23-125 24-125 N24-125 1.53 .7 3 5 / 8 3 3 / 8 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4

DoubleFemale B** 23-12B** 24-12B** N24-12B** 1.65 .7 3 5 / 8 27 / 8 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4Female-Male B** 23-125B** 24-125B** N24-125B** 1.53 .7 3 5 / 8 3 3 / 8 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4

Dimensional Data and Assembly Part Numbers, Series 25 & 26 Soft Seated Valve Assemblies6,000 lbs. max. WOG at 200F


Dimensional Data


1 / 4"Double Female 25-14 26-14 N26-14 1.65 1.8 3 5 / 8 2 7 / 8 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4

Female-Male 25-145 26-145 N26-145 1.53 1.8 3 5 / 8 31 / 4 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4

Double Female 25-12 26-12 N26-12 1.65 1.8 3 5 / 8 27 / 8 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4

1 / 2"Female-Male 25-125 26-125 N26-125 1.53 1.8 3 5 / 8 3 3 / 8 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4

DoubleFemale B** 25-12B** 26-12B** N26-12B** 1.65 1.8 3

5

/ 8 27

/ 8 17

/ 16 3

/ 8 11

/ 8 23

/ 4 1

/ 4Female-Male B** 25-125B** 26-125B** N26-125B** 1.53 1.8 3 5 / 8 3 3 / 8 17 / 16 3 / 8 11 / 8 2 3 / 4 1 / 4

*NACE valves-Sour Gas Valve Assembly-Valves are manufactured of 316 SS. All parts RC 22 or less to meet NACE MR-01-75 standards. Working pressures same as standard valv**Includes Bleed Fitting


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KF O-Ring Style, Gauge and Angle Configuration Needle Valves

Dimensional Data and Assembly Part Numbers, Series 21 & 22 Metal Seated Gauge Valve Assemblies10,000 lbs. max. WOG at 200F


Dimensional DataNPT Carbon Steel 316 Stainless NACE* Lbs. A B C D E F G

1 / 2"3 Female/1Male 21-125 22-125 N22-125 2.3 .7 3 5 / 8 5 5 / 8 2 3 /8 3 / 8 11 / 8 2 3 / 4 1 / 4

3Female/1Male** 21-125L** 22-125L** N22-125L** 2.93 .7 3 5 / 8 71 / 4 2 3 /8 3 / 8 11 / 8 2 3 / 4 1 / 41 /2F x 3Female/1Male 21-12345 22-12345 2.3 .7 3 5 / 8 5 5 / 8 2 3 /8 3 / 8 11 / 8 2 3 / 4 1 / 43 /4 M

Dimensional Data and Assembly Part Numbers, Series 27 & 28 Soft Seated Gauge Valve Assemblies6000 lbs. max. WOG at 200F


Dimensional Data


1 / 2"3Female/1Male 27-125 28-125 N28-125 2.3 1.8 3 5 / 8 5 5 / 8 2 3 /8 3 / 8 11 / 8 2 3 / 4 1 / 4

3Female/1Male** 27-125L** 28-125L** N28-125L** 2.93 1.8 3 5 / 8 71 / 4 2 3 /8 3 / 8 11 / 8 2 3 / 4 1 / 41 /2F x 3Female/1Male 27-12345 28-12345 2.3 1.8 3 5 / 8 5 5 / 8 2 3 /8 3 / 8 11 / 8 2 3 / 4 1 / 43 /4 M

Dimensional Data and Assembly Part Numbers, Series 23 & 24Metal Seated Valves10,000 lbs. max. WOG at 200F

21 / 8

23 / 4

5

1 / 4

1 / 4

5 / 8

11 / 4 Square

Orifice

OpenTravel

Bleed Valves

Size Assembly Part Numbers Wt.NPT Carbon Steel 316 Stainless NACE* Lbs.1 / 2" 366 367 368 .25

*NACE Valves, Sour Gas Assembly, Valves are manufactured of 316 SS. All parts RC22 or less to meetNACE MR-01-75 standards. Working pressures same as standard valves.

**Extended body pattern

Size ConnectionsAssembly Part Numbers Wt. CvNPT Carbon Steel 316 Stainless NACE* Lbs.

1 / 2" Female/Male 23-125A 24-125A N24-125A 1.53 .75

F

A

D

G

C

13 / 8

E Square

Orifice

OpenTravel


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KF O-Ring Style Needle Valves Parts, Materials and Engineering Data

OptionalBleedScrew

Soft Seat

Only

3

5

4

6

9

1

2

11

10 8

12

7

Parts List & Materials

Index DescriptionMaterials

Carbon Steel 316 Stainless NACE*

1 Body Carbon Steel-AISI 1215 or 12L14 316 Stainless Steel (or CF8M)

2 Bonnet Carbon Steel-AISI 1215 or 12L14 316 Stainless Steel

3 Stem 316 Stainless Steel

4 Stem Seal Buna N or Viton

5 Stem Seal Back-Up Ring Buna N or Viton

6 Sleeve Carbon Steel-AISI 1215 or 12L14 316 Stainless Steel

7 Handle Carbon Steel-AISI 1215 or 12L14 303 Stainless Steel

8 Handle Screw Carbon Steel 18-8 Stainless Steel

9 Bonnet Locking Pin Spring Steel 18-8 Stainless Steel

10 Seat (Soft Seat Only) Nylon11 Boot Polyethylene

12 Bleed Screw (Optional) 316 Stainless Steel

*NACE valves-Sour Gas Valve Assembly-Valves are manufactured of 316 SS. All parts RC 22 or less to meet NACE MR-01-75 standards. Working pressures same as standard valv

High Temperature PackingAdd Suffix V (Viton) to Assembly Part No.Method of Calculating Flow Coefficient (Cv)The Flow Coefficient Cv of a valve is the flow rate of water(gallons/minute) through a fully opened valve, with a pressuredrop of 1 psi across the valve. To find the flow of liquid throughvalve from the Cv, use the following formulas:Liquid FlowQ L = flow rate of liquid (gal./min.)

P = differential pressure across the valve (psi)G = Specific gravity of liquid (for water, G=1)

Gas FlowQg = flow rate of gas (CFH at STP)P2 = outlet pressure (psia)

g = Specific gravity of gas (for air, g=1.000)

Qg=61Cv

P2 Pg

For non-critical flow

{ P }P2


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Packed-Stem Style Features

A. Back seat stem design

B. Metal-to-Metalstem seating

C.Adjustable Teflon

stem packing

D. Replaceable seat

A. Back seat stem design helps prevent fire feeding leakage. High strengthstem threads provide extended life and low torque operation.B. Positive metal-to-metal stem seating arrangement in all metal seatvalves assure drop-tight sealing up to 10,000 psi.C. Inert Teflon stem packing and micro-finish stem offer sealing depend-ability. Adjustable packing nut insures continuous sealing protection.D. Tough nylon, replaceable seat in all soft seat valves is secured by ananti-rotation lug.

Oversized Comfortable Handle

Large, clearly

marked bodyincludes closelycontrolled threadedpipe connections.

Bonnet Locking

Pin

Large straight through orifice allowshigh flow capacity.


8/11


9/11


KF Packed-Stem Style Gauge and Angle Configuration Needle Valves

Dimensional Data and Assembly Part Numbers, Series 11 & 12 Metal Seated Gauge Valve Assemblies10,000 lbs. max. WOG at 200F


Dimensional Data


1 / 2"3Female /1Male 11-125 12-125 N12-125 2.3 .7 3 5 / 8 5 5 / 8 2 3 / 8 3 / 8 11 / 8 2 3 / 4 1 / 4

3Female/1Male** 11-125L** 12-125L** N12-125L** 2.93 .7 3 5 / 8 71 / 4 2 3 / 8 3 / 8 11 / 8 2 3 / 4 1 / 41 /2F x 3Female/1Male 11-12-345 12-12-345 2.3 .7 3 5 / 8 5 5 / 8 2 3 / 8 3 / 8 11 / 8 2 3 / 4 1 / 43 /4 M

Dimensional Data and Assembly Part Numbers, Series 17 & 18 Soft Seated Gauge Valve Assemblies6000 lbs. max. WOG at 200F

SizeConnections

Assembly Part Numbers Wt.Cv

Dimensional Data


1 / 2"3Female/1Male 17-125 18-125 N18-125 2.3 1.8 3 5 / 8 5 5 / 8 2 3 / 8 3 / 8 11 / 8 2 3 / 4 1 / 4

3Female/1Male** 17-125L** 18-125L** N18-125L** 2.93 1.8 3 5 / 8 71 / 4 2 3 / 8 3 / 8 11 / 8 2 3 / 4 1 / 41 /2F x 3Female/1Male 17-12-345 18-12-345 2.3 1.8 3 5 / 8 5 5 / 8 2 3 / 8 3 / 8 11 / 8 2 3 / 4 1 / 43 /4 M

Dimensional Data and Assembly Part Numbers, Ser ies 13 & 14Metal Seated Valves10,000 lbs. max. WOG at 200F

21 / 8

23 / 4

45 / 8

3 / 8

1 / 4

5 / 8

11 / 4 Sq.

Orifice

OpenTravel

Bleed Valves

Size Assembly Part Numbers Wt.NPT Carbon Steel 316 Stainless NACE* Lbs.1 /2" 366 367 368 .25

*NACE Valves, Sour Gas Assembly, Valves are manufactured of 316 SS. All parts RC22 or less to meetNACE MR-01-75 standards. Working pressures same as standard valves.

**Extended body pattern

Size ConnectionsAssembly Part Numbers Wt. CvNPT Carbon Steel 316 Stainless NACE* Lbs.

1 / 2" Female/Male 13-125A 14-125A N14-125A 1.53 .75

B

F

A

D

G

C

13 / 8

E Square

Orifice

OpenTravel


10/119KF reserves the right to change designs, materials or specifications without notice or without obligation to furnish or install such changes on products previously or subsequently sold

KF Packed-Stem Style Needle Valves

7

8

6

5

511

4OptionalBleed Screw

Soft SeatOnly

2

31

10 9

Parts List & Materials

High Temperature PackingAdd Suffix HT (Grafoil) to Assembly Part No.Method of Calculating Flow Coefficient (Cv)The Flow Coefficient Cv of a valve is the flow rate of water(gallons/minute) through a fully opened valve, with a pressuredrop of 1 psi across the valve. To find the flow of liquid throughvalve from the Cv, use the following formulas:Liquid FlowQ L = flow rate of liquid (gal./min.)

P = differential pressure across the valve (psi)G = Specific gravity of liquid (for water, G=1)

Gas FlowQg = flow rate of gas (CFH at STP)P2 = outlet pressure (psia)

g = Specific gravity of gas (for air, g=1.000)

Qg=61Cv

P2 Pg

For non-critical flow

{ P }P2


11/11

1500 S.E. 89th Street, P.O. Box 95249, Oklahoma City, OK 73143-5249Phone: (405) 631-1533 Fax: (405) 631-5034 www.kfvalves.com [email protected]

Engineering Solutions for the Worlds Flow Control Industry

1999 KF Industries, Inc. KFNDLpdf699 Viton is a registered trademark of DuPont Dow Elastomers. Teflon is a registered trademark of DuPont. KF reserves the right to change designs, materals or specifications without notice or without obligation to furnish or install such changes on products previously or subsequently sold. KF Industries is a division of International, Inc.

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