Nominal Barrel
A B C D H J K Weight, Size O.D.,F. Lbs.
2" 5 151/2191/8 47/8 313/32 27/8 1.375 125/8 170 10,000 Lbs. CWP, UNIBOLT Inlet/
UNIBOLT Outlet (Butt Weld) (inches)
Inlet Connection
A B C D F G H J K Weight,
Size –Type Lbs.
21/2" UNIBOLT Butt Weld 1611/16 165/16 47/8 31/2 5 — 27/8 13/8 119/16 189 113/16"–15,000 lbs CWP API Flg 1611/16 — 47/8 — 5 81/4 — — — 175 21/16"–20,000 lbs CWP API Flg 1715/16 16 51/2 — 5 911/16 27/8 1,100 — 235 Adjustable Heater Chokes 15,000 lb CWP;
Taper -Type Seal (inches)
Nominal
A B C D F H J K Size
Wt. w/
UNIBOLT, Lbs.
2" 165/8159/16 35/8 31/8 5 23/8 1.503 91/2 116 Adjustable Heater Chokes 6,500 lb CWP;
Taper -Type Seal (inches) Nominal Barrel
A B C E Weight, Size O.D.,F. Lbs.
2" 4 1415/16 121/4 311/16 41/8 87 6,500 lb CWP, Threaded Inlet/Threaded Outlet (inches)
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H O K E S2" 2000 lb CWP UNIBOLT
• Threaded Inlet x Threaded Outlet, or
• Flanged Inlet x Flanged Outlet
90156- X X X 0 XX 0
Threaded by Threaded Flanged by Flanged
Inlet
Outlet Outlet
Inlet
2" 3000/5000 lb CWP UNIBOLT (Ring-Groove Type Seal)
• Threaded Inlet x UNIBOLT Outlet, or
• Flanged Inlet x UNIBOLT Outlet
XXXXX- X X X X X X 0
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
Outlet Conn Plain Hub 2" NPT Threaded 1 2" SCH XXH BW 2 2" SCH 160 BW 3 2" SCH 80 BW 4 Stem & Seat Material
Steel 1 Stainless Steel1 2 Tungsten Carbide 3 Seat Bore .50" Bore 1 .75" Bore 2 1.00" Bore 3 Service Standard 0 NACE2 1
Threaded by UNIBOLT Flanged by UNIBOLT
Inlet
Outlet Outlet
Inlet
Notes: 1 - SS Yoke Hub recommended with SS Stem (Body & Yoke Hub option 3).
2 - Tungsten Carbide Stem and Seat required for NACE Service.
Assembly Part Number (see example*)
2" 3000/5000 lb CWP UNIBOLT (Ring-Groove Type Seal)
• UNIBOLT Inlet x UNIBOLT Outlet
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
UNIBOLT by UNIBOLT
Outlet
Inlet
Assembly Part Number
Assembly Part Number
2" 3000/5000 lb CWP UNIBOLT (Ring-Groove Type Seal)
• Flanged Inlet x Flanged Outlet
92931- X X X X X X 0
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
API Flanges RF Flanges RTJ Flanges Code 2-1/16" 3000 2" 300 RF 2" 600 RTJ 11 2-1/16" 5000 2" 600 RF 2" 900 RTJ 22 2-9/16" 3000 2" 900 RF 2" 1500 RTJ 33 2-9/16" 5000 2" 1500 RF 2" 2500 RTJ 44 2-1/16" 2000 3" 300 RF 3" 600 RTJ 55 3-1/8" 5000 4" 600 RF 3" 900 RTJ 66 3-1/8" 3000 3" 600 RF 3" 1500 RTJ 77 2" 150 RF 3" 2500 RTJ 88 4" 1500 RTJ 99 Seat Bore
.50" Bore 1 .75" Bore 2 1.00" Bore 3
Service Standard 0 NACE2 1
Flanged by Flanged
Outlet
Inlet
Assembly Part Number
Stem & Seat Material Steel 1 Stainless Steel1 2 Tungsten Carbide 3
Seat Bore .50" Bore 1 .75" Bore 2 1.00" Bore 3
Service Standard 0 NACE2 1
Inlet Conn Plain Hub 2" SCH XXH BW 1 2" SCH 160 BW 2 2" NPT Threaded 4
Outlet Conn Plain Hub 2" SCH XXH BW 1 2" SCH 160 BW 2 2" SCH 80 BW 3 2" NPT Threaded 4
Stem & Seat Material Steel 1 Stainless Steel1 2 Tungsten Carbide 3
XXXXX- X X X X XX 0
Inlet/Outlet Stem & Seat Material
Steel 1 Stainless Steel1 2
Inlet/Outlet 2" NPT Threaded 11 2" ANSI 600 RF 22 2" ANSI 600 RTJ 33 2-1/16" API 2000 44 Body & Yoke Hub Material
Alloy Steel Body
& Yoke Hub 1 Stainless Steel Body
& Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
Seat Bore .50" Bore 1 .75" Bore 2
*P/N example: 2" 2000 lb UNIBOLT Tee Type Adjustable choke, Alloy Steel Body and Hub, SS Stem and Seat, .75 seat bore, 2" ANSI 600 Flanged RF inlet and outlet 90156-1220220
Inlet Conn Body 2" NPT Threaded 0 2-1/16" 3000 1 2-1/16" 5000 2 2-1/16" 2000 3 2" ANSI 600 RF 4 2" ANSI 900 RF 5 2" ANSI 1500 RF 6
Base Number Flanged Inlet 90034-Threaded Inlet
90052-Base Number API Flanges 93286-RF Flanges 92929-RTJ Flanges
92930-How to Order
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(p148)
2" 10,000 UNIBOLT (Ring-Groove or Taper-Type Seal)
• API Flanged Inlet x Flanged Outlet
XXXXX- X X X X XX 0
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
Inlet/Outlet 1-13/16" 10,000 11 2-1/16" 10,000 22 2-9/16" 10,000 33 3-1/16" 10,000* 44
Flanged by Flanged
Outlet
Inlet
2" 10,000 UNIBOLT (Ring Groove or Taper Type Seal)
• API Flanged Inlet x UNIBOLT Outlet
XXXXX- X X X X X X 0
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
Inlet Conn Body 1-13/16" 10,000 1 2-1/16" 10,000* 2
Outlet Conn Plain Hub 2" SCH XXH BW 1 2" SCH 160 BW 2 2" SCH 80 BW 3 2-1/2" SCH XXH BW 4 2-1/2" 1.10" ID BW 5 2-1/2" 1.38" ID BW 6 2-1/2" SCH 160 BW 7 Stem & Seat Material
Steel 1 Stainless Steel1 2 Tungsten Carbide 3
Seat Bore .50" Bore 1 .75" Bore 2 1.00" Bore 3 Service Standard 0 NACE2 1
Flanged by UNIBOLT
Outlet
Inlet
Notes: 1 - SS Yoke Hub recommended with SS Stem (Body & Yoke Hub option 3).
2 - Tungsten Carbide Stem and Seat required for NACE Service.
Assembly Part Number (see page 138 for P/N example)
2" 10,000 UNIBOLT (Ring-Groove Type Seal)
• UNIBOLT Inlet x UNIBOLT Outlet
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
UNIBOLT by UNIBOLT
Outlet
Inlet
Assembly Part Number
Assembly Part Number
2" 15,000/20,000 UNIBOLT (Taper-Type Seal)
• API Flanged Inlet x Flanged Outlet
90268- X X X X X X 0
Body Material Alloy Steel (15,000 PSI Only) 1 Stainless Steel 2
API 15,000 PSI API 20,000 PSI Code 1-13/16" 15,000 1-13/16" 20,000 11
2-1/16" 15,000 2-1/16" 20,000 22 2-9/16" 15,000 33 Seat Bore
.50" Bore 1 .75" Bore 2
Service Standard 0 NACE2 1
Flanged by Flanged
Outlet
Inlet
Assembly Part Number
Stem & Seat Material Steel 1 Stainless Steel1 2 Tungsten Carbide 3
Seat Bore .50" Bore 1 .75" Bore 2 1.00" Bore 3
Service Standard 0 NACE2 1
Stem & Seat Material Stainless Steel 2 Tungsten Carbide 3
XXXXX- X X X X XX 0
*Ring Groove Type Seal Only
*Ring-Groove Type Seal Only
Outlet Conn Plain Hub 2" SCH XXH BW 1 2" SCH 160 BW 2 2" SCH 80 BW 3 2-1/2" SCH XXH BW 4 2-1/2" 1.10" ID BW 5 2-1/2" 1.38" ID BW 6 2-1/2" SCH 160 BW 7 Inlet Conn Plain Hub 2" SCH XXH BW 1 2" SCH 160 BW 2 2-1/2" SCH XXH BW 4 2-1/2" 1.10" ID BW 5 2-1/2" 1.38" ID BW 6 2-1/2" SCH 160 BW 7
Inlet/Outlet Seat Bore
.50" Bore 1 .75" Bore 2 1.00" Bore 3
Stem & Seat Material Steel 1 Stainless Steel1 2 Tungsten Carbide 3 Base Number
Ring Groove Type Seal 90251-Taper Type Seal
90303-Base Number Ring Groove Type Seal 90265-Taper Type Seal
90309-Base Number 15,000 PSI WP 90271-20,000 PSI WP
90387-How to Order
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T H O R N H I L L C R A V E R A
D J U S T A B L EC
H O K E SXXXXX- X X X X XX 0
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
Seat Bore 1.00" Bore2 1 1.50" Bore 2 1.75" Bore 3 2.00" Bore 4
Service Standard 0 NACE3 1 Stem & Seat Material
Steel 1 Stainless Steel1 2 Tungsten Carbide 3
Inlet/Outlet
Outlet
Inlet
Flanged by Flanged
3" 3000/5000 UNIBOLT (Taper-Type Seal)
• UNIBOLT End Connection, 2" Max Open, 1996 Design
XXXXX- X X X X X X 0
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
Seat Bore 1.00" Bore2 1 1.50" Bore 2 1.75" Bore 3 2.00" Bore 4
Service Standard 0 NACE3 1 Stem & Seat Material
Steel 1 Stainless Steel1 2 Tungsten Carbide 3
Outlet
Inlet
UNIBOLT by UNIBOLT
3" Plain Hub 4" Plain Hub Code 3" SCH XXH BW 4" SCH XXH BW 1
3" SCH 160 BW 4" SCH 160 BW 2 3" SCH 80 BW 4" SCH 80 BW 3 3" NPT Threaded 4" NPT Threaded 4
Inlet Conn Plain Hub
3" Plain Hub 4" Plain Hub Code 3" SCH XXH BW 4" SCH XXH BW 1
3" SCH 160 BW 4" SCH 160 BW 2 3" SCH 80 BW 4" SCH 80 BW 3 3" NPT Threaded 4" NPT Threaded 4
Outlet Conn Plain Hub
Notes: 1 - SS Yoke Hub recommended with SS Stem (Body & Yoke Hub option 3).
2 - 1.00" Bore Seat available in Tungsten Carbide only.
3 - Tungsten Carbide Stem and Seat required for NACE Service.
Assembly Part Number (see page 138 for P/N example
Assembly Part Number
Base Number API Flanges 93281-RF Flanges 93396-RTJ Flanges
93397-Base Number 3" Plain Hub 93398-4" Plain Hub
93399-3" 3000/5000 UNIBOLT (Taper-Type Seal)
• Flanged End Connection, 2" Max Open, 1996 Design
How to Order
API Flanges RF Flanges RTJ Flanges Code 2-9/16" 5000 3" 300 RF 3" 600 RTJ 11
3-1/8" 5000 3" 600 RF 3" 900 RTJ 22 4-1/16" 5000 3" 900 RF 3" 1500 RTJ 33 3-1/8" 3000 3" 1500 RF 4" 600 RTJ 44 2-1/16" 5000 4" 300 RF 4" 900 RTJ 55
— 4" 600 RF 4" 1500 RTJ 66
— 4" 900 RF — 77
— 4" 1500 RF — 88
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(p150) P R O D U C T S P E C I F I C A T I O N S
F
O R C EB
A L A N C E DC
H O K E ST H O R N H I L L C R A V E R
XXXXX- X X X X XX X
Body & Yoke Hub Material Alloy Steel 1 Stainless Steel 2
API 5,000 PSI API 10,000 PSI 3-1/8" API 5000 Flgd 2-9/16" API 10,000 Flgd 11 2-9/16" API 5000 Flgd 3-1/16" API 10,000 Flgd 22
— 4-1/16" API 10,000 Flgd 33 Base Number
5,000 PSI WP 90395-10,000 PSI WP
90416-Seat Bore 1.50" Bore 2 1.75" Bore 3 2.00" Bore 4
Service Standard 0 NACE1 1
Seal Material Buna-N 1 Viton 2 Stem & Seat Material
Stainless Steel 2 Tungsten Carbide 3
Inlet/Outlet
Outlet
Inlet
Flanged by Flanged
Note: 1 - Tungsten Carbide Stem and Seat required for NACE Service.
Assembly Part Number (see page 138 for P/N example)
Other flange sizes availabe
Force Balanced Design Concept The design of the Force Balanced Choke dis-tributes the force of downstream pressure to the stem equally in every direction, eliminat-ing the effects of upstream pressure entirely and minimizing the load on stem threads.
The upper stem is designed so that it rotates in a bearing without rotating the lower stem, further reducing torque.
This design results in a Choke that is easier to operate than any other conventional type. In addition, the low torque eliminates the need for expensive gear operators.
SEE DETAIL A
SEE DETAIL B
DETAIL B DETAIL A
Forced Balanced Choke
Vent Sleeve Seals
Vent Sleeve Lower stem
Upper stem
3" 5,000/10,000 UNIBOLT (Taper-Type Seal)
• API Flanged Inlet x Flanged Outlet, Handwheel Operated
How to Order
Stem Coupling
Stem Seals
Stem Seals
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2-1/2" SCH XXH 5Outlet Conn 2" SCH XXH 1 2" SCH 160 2 2" SCH 80 3 2-1/2"1.38"ID 4 2-1/2" SCH XXH 5 Seat Bore
UNIBOLT by UNIBOLT
Inlet
Outlet
Assembly Part Number (see page 138 for P/N example)
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
Stem & Seat Material Steel 1 Stainless Steel 2 Tungsten Carbide 3
Seat Bore .50" ID 1 .75" ID 2 1.00" ID 3 Stem & Seat Material Steel 1 Stainless Steel 2 Tungsten Carbide 3
2" 10,000 lb UNIBOLT (Ring-Groove Type Seal)
• UNIBOLT Inlet x UNIBOLT Outlet
90113- X X X X X X 0 2-1/2" SCH XXH 4 2-1/2"1.1"ID 5 2-1/2"1.38"ID
(XXXH) 6 2-1/2"SCH 160 7 Seat Bore
UNIBOLT by UNIBOLT
Inlet
Outlet
Assembly Part Number
Body & Yoke Hub Material Alloy Steel Body &
Yoke Hub 1 Stainless Steel Body &
Yoke Hub 2 Alloy Steel Body/
Stainless Steel Yoke Hub 3
Stem & Seat Material Steel 1 Stainless Steel 2 Tungsten Carbide 3
2" 6500 lb UNIBOLT (Taper-Type Seal)
• Threaded Inlet x Threaded Outlet
90183- X X X X XX 0
Inlet/Outlet 2" NPT 11
Assembly Part Number
Service Standard 0 NACE1 1
Threaded by Threaded
Outlet
Inlet
Note: 1 - Tungsten Carbide Stem and Seat required for NACE Service.
UNIBOLT “Long Nose” Heater Chokes incorporate the proven principles of the UNIBOLT Adjustable and Positive Chokes.
The main distinguishing feature of the “Long Nose”
design is the additional length of the Choke Body. When installed on an indirect heater, with the outlet end of the Choke fastened directly to the tube bundle, the Choke Seat area is completely surrounded by the hot water which is pri-marily used to heat the tubes. The heat generated in this man-ner has a benificial effect in minimizing the severe refrigerat-ing action resultrefrigerat-ing from meterrefrigerat-ing high pressure natural gas through a small orifice. The UNIBOLT “Long Nose” Heater Choke is the accepted leading performer in this application.
UNIBOLT “Long Nose” heater chokes are available in 6,500, 10,000, 15,000 and 20,000 psi WP. A 6,500 psi econo-my design is also offered (see following page for details).
Inlet Conn Lug Hub
(No Plain Hub) 0 2" SCH XXH 1 2" SCH 160 2 2-1/2" SCH XXH 4 2-1/2"1.1" ID 5 2-1/2"1.38" ID
(XXXH) 6 2-1/2"SCH 160 7
2" 6500 lb UNIBOLT (Taper-Type Seal)
• UNIBOLT Inlet x UNIBOLT Outlet
How to Order
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