Hammer Union
KwikFlex Hammer Unions are designed to instantly connect or disconnect piping systems replacing traditional flange systems. they are used in Oil and Gas industries
Materials Available In
AISI 4130 75K / A105. Unions are all steel constructed including precisely manufactured ball-cone (male-to-female) seats. High pressure unions are made from forged alloy steel.
Data Sheet
Applications
Key Features
- Hammer unions are one of the most readily used connections in the oil and gas industry.
- Hammer Unions are designed to enjoin mud tanks instantly without having to deal with the flange connections at all.
- If the mud tanks are not aligned in the right kind of way necessary hammer unions can still be used in order to make absolutely non-leak seals that are tightened.
- They generally have three parts, a male, a female, and a nut.
- The male part is an external threaded portion that is welded on the end of a pipe already connected to a tank wall.
- The pipe continues further through the nuts towards the O-ring in order to enter into the female part
- They are then hammered and tightened together.
- KFI Hammer Unions are forged with high quality alloy steel such as AISI 4130 75K
- All processes including forging, machining, and heat treatment are strictly controlled and full trackable in accordance with API 6A, API 16c and Q1, as well as NACE-MR-01-75 (sour gas service)
- Hammer unions are available in size range from ½ ‘’ to 12’’ and are suitable for pressures up to 20,000 psi, and all have full material traceability.
| Figure No. | Assembly Color Key | Pressure Rating (PSI) | Pipe Size (in mm) | ||||||||||||||
| Standard Service | Sour Gas Service | 1 | 1.3 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | ||||
| Cold Working | Test | Cold Working | Test | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||
| 50 |
 | 500 | 750 | NA | NA |
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| 100 |
 | 1000 | 1500 | NA | NA |
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| 200 |
 | 2000 | 3000 | NA | NA |
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| 206 |
 | 2000 | 3000 | NA | NA |
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| 207 |
 | 2000 | 3000 | NA | NA |
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| 211 |
 | 2000 | 3000 | NA | NA |
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| 400 |
 | 2500 | 3750 | 2500 | 3750 |
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| 400 |
| 4000 | 6000 | 4000 | 6000 |
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| 600 |
 | 6000 | 9000 | NA | NA |
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| 602 |
 | 6000 | 9000 | 6000 | 9000 |
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| 1002 |
 | 10000 | 15000 | 7500 | 11250 |
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| 1003 |
 | 10000 | 15000 | 7500 | 11250 |
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| 1502 |
 | 15000 | 22500 | 10000 | 15000 |
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| 2002 |
 | 20000 | 30000 | NA | NA |
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| 2202 |
 | NA | NA | 15000 | 22500 |
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Types of Hammer Union
- FIG 50
- FIG 100
- FIG 200
- FIG 206
- FIG 207
- FIG 211
- FIG 300
- FIG 400
- FIG 600
- FIG 602
- FIG 1002
- FIG 1003
- FIG 1502
- FIG 2002
 | Recommended for air, water, oil, or gas service to 500 PSI NSCWP. Standard subs are threaded for API line pipe. | |||||||
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 | Recommended for air, water, oil, or gas service to 1,000 PSI NSCWP. Standard subs are threaded for API line pipe and a r e W e c o interchangeable. | |||||||||||||||||||||||||||
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 | Recommended for air, water, oil, or gas service to 2000 PSI NSCWP. A union of great utility meeting most requirements in the medium pressure ranges. Precision seating surfaces assure dependable pressure seal. Standard subs are threaded for API line pipe and are Weco interchangeable. Sizes of 2″ and above also available with butt weld end connection | |||||||||||||||||||||||||||||||||||||||
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|---|
 | Recommended for air, water, oil, or gas service to 2000 PSI NSCWP. A unions of great utility meeting most requirements in the medium pressure ranges. Precision seating surfaces assure dependable pressure seal. Standard subs are threaded for API line pipe and are Weco interchangeable. Sizes of 2″ and above also available with butt weld end connection | |||||||||||||||||||||||||||||||||||||||
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|---|
 | Recommended for air, water, oil, or gas service to 2,000 PSI NSCWP. A blanking cap with Buna-N ‘O’ ring seal provides an efficient and dependable closure. The threaded sub is interchangeable with Fig. 200 threaded sub. Also available with butt weld ends. | |||||||||||||||
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|---|
 | Recommended for production systems with electrolytic corrosion problems Laminated insulating rings provide 35 million Ohms resistance across the unions. O-ring in male sub provides a positive primary seal. Seal ring in female sub delivers a positive secondary seal. | |||||||||||||||
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|---|
 | Recommended for production systems with electrolytic corrosion problems Laminated insulating rings provide 35 million Ohms resistance across the unions. O-ring in male sub provides a positive primary seal. Seal ring in female sub delivers a positive secondary seal. | |||||||||||
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|---|
 | Recommended for air, water, oil, or gas service to 4,000 PSI NSCWP. Utilizes precision ball and cone seating surfaces for easy alignment and dependable pressure seal. Sizes over 4″ are rated to 2,500 PSI NSCWP. Also available with a lip-type seal in 2″ size only as Fig 402. | |||||||||||||||||||||||||||
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|---|
 | Recommended for air, oil, gas or steam service to 6,000 PSI NSCWP. Rugged and fast 2 pitch acme thread makes this the quickest unions to makeup or break out (only two turns). The threaded sub is fitted with a bronze seat insert for added effectiveness in pressure sealing. | |||||||||||
|
|---|
 | Recommended for air, water, oil, gas or mud service to 6,000 PSI NSCWP. This unions has a replaceable lip-type seal ring of Buna-N specifically designed to minimize fluid flow turbulence. Lip-type ring provides a pressure seal and protection for metaltometal seating surfaces. Smaller and lighter than Fig. 600 unions and are recommended for manifold and truck mounting where size and weight are critical. | |||||||||||||||||||
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|---|
 | Recommended for air, water, oil, gas and mud service to 10,000 PSI NSCWP. This unions has a replaceable lip-type seal ring of BunaN specifically designed to minimize fluid flow turbulence. The lip-type ring works similarly as in the Fig. 602 unions. These unions are for use on high pressure systems and trucks. | |||||||||||||||||||||||
|
|---|
 | Recommended for high pressure manifolding and drilling rig use where alignment of piping components is a problem. Recommended for air, water, oil, gas or mud service to 10,000 PSI NSCWP. This unions has a ball seat that allows a total of 15 (±7½ ) angular adjustment. An ‘O’ ring seal in addition to the metal-to-metal seat assures a pressure tight connection. | |||||||||||||||||||
|
|---|
 | Recommended for air, water, oil, gas and mud service to 15,000 PSI NSCWP. This unions has a replaceable lip-type seal ring of BunaN specifically designed to minimize fluid flow turbulence. The lip-type ring also provides a pressure seal and protection for metal to metal seating surface and are recommended for manifold and truck mounting or other installations where high pressure is encountered. | |||||||||||||||||||||||
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|---|
 | Recommended for standard service to 20,000 PSI NSCWP. Available in butt weld end connections only. Available as Fig 2202 for sour service (15,000 PSI WP) | |||||||||||||||||||
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Hammer Unions
Data Sheet
Materials Available In
AISI 4130 75K / A105. Unions are all steel constructed including precisely manufactured ball-cone (male-to-female) seats. High pressure unions are made from forged alloy steel.
Applications
Key Features
- Hammer unions are one of the most readily used connections in the oil and gas industry.
- Hammer Unions are designed to enjoin mud tanks instantly without having to deal with the flange connections at all.
- If the mud tanks are not aligned in the right kind of way necessary hammer unions can still be used in order to make absolutely non-leak seals that are tightened.
- They generally have three parts, a male, a female, and a nut.
- The male part is an external threaded portion that is welded on the end of a pipe already connected to a tank wall.
- The pipe continues further through the nuts towards the O-ring in order to enter into the female part
- They are then hammered and tightened together.
- KFI Hammer Unions are forged with high quality alloy steel such as AISI 4130 75K
- All processes including forging, machining, and heat treatment are strictly controlled and full trackable in accordance with API 6A, API 16c and Q1, as well as NACE-MR-01-75 (sour gas service)
- Hammer unions are available in size range from ½ ‘’ to 12’’ and are suitable for pressures up to 20,000 psi, and all have full material traceability.
| Figure No. | Assembly Color Key | Pressure Rating (PSI) | Pipe Size (in mm) | ||||||||||||||
| Standard Service | Sour Gas Service | 1 | 1.3 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | ||||
| Cold Working | Test | Cold Working | Test | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||
| 50 |
| 500 | 750 | NA | NA |
|
| ||||||||||
| 100 |
| 1000 | 1500 | NA | NA |
|
|
|
|
|
|
| |||||
| 200 |
| 2000 | 3000 | NA | NA |
|
|
|
|
|
|
|
|
|
|
| |
| 206 |
| 2000 | 3000 | NA | NA |
|
|
|
|
|
|
|
|
|
|
| |
| 207 |
| 2000 | 3000 | NA | NA |
|
|
| |||||||||
| 211 |
| 2000 | 3000 | NA | NA |
|
| ||||||||||
| 400 |
| 2500 | 3750 | 2500 | 3750 |
|
|
|
| ||||||||
| 400 |
| 4000 | 6000 | 4000 | 6000 |
|
|
| |||||||||
| 600 |
| 6000 | 9000 | NA | NA |
|
|
|
| ||||||||
| 602 |
| 6000 | 9000 | 6000 | 9000 |
|
|
|
|
|
| ||||||
| 1002 |
| 10000 | 15000 | 7500 | 11250 |
|
|
|
|
|
|
|
| ||||
| 1003 |
| 10000 | 15000 | 7500 | 11250 |
|
|
|
| ||||||||
| 1502 |
| 15000 | 22500 | 10000 | 15000 |
|
|
|
|
| |||||||
| 2002 |
| 20000 | 30000 | NA | NA |
|
|
| |||||||||
| 2202 |
| NA | NA | 15000 | 22500 |
|
|
| |||||||||
Types of Hammer Union
FIG 50
Recommended for air, water, oil, or gas service to 500 PSI NSCWP. Standard subs are threaded for API line pipe.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 5 | 5 1/2 | 5 1/4 | 10.8 |
FIG 100
Recommended for air, water, oil, or gas service to 1,000 PSI NSCWP. Standard subs are threaded for API line pipe and a r e W e c o interchangeable.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 2 | 3 5/8 | 3 1/5 | 2.7 |
| 2.5 | 4 | 4 | 4.5 |
| 3 | 4 1/4 | 4 1/2 | 6.4 |
| 4 | 5 3/4 | 5 1/3 | 10.4 |
| 6 | 6 7/9 | 7 | 20.2 |
| 8 | 7 1/4 | 8 2/9 | 30 |
FIG 200
Recommended for air, water, oil, or gas service to 2000 PSI NSCWP. A unions of great utility meeting most requirements in the medium pressure ranges. Precision seating surfaces assure dependable pressure seal. Standard subs are threaded for API line pipe and are Weco interchangeable. Sizes of 2″ and above also available with butt weld end connection
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 1 | 2 3/5 | 2 | 0.8 |
| 1 1/4 | 2 7/9 | 2 1/4 | 1.1 |
| 1 1/2 | 2 7/8 | 2 1/2 | 1.4 |
| 2 | 3 5/8 | 3 | 2.7 |
| 2 1/2 | 4 1/8 | 3 4/7 | 4.5 |
| 3 | 4 1/2 | 4 | 5.9 |
| 4 | 5 | 4 2/3 | 8.2 |
| 6 | 6 5/8 | 6 1/4 | 19.1 |
| 8 | 7 1/4 | 7 4/9 | 29.5 |
FIG 206
Recommended for air, water, oil, or gas service to 2000 PSI NSCWP. A unions of great utility meeting most requirements in the medium pressure ranges. Precision seating surfaces assure dependable pressure seal. Standard subs are threaded for API line pipe and are Weco interchangeable. Sizes of 2″ and above also available with butt weld end connection
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 1 | 2 3/5 | 2 | 0.8 |
| 1 1/4 | 2 7/9 | 2 1/4 | 1.1 |
| 1 1/2 | 2 7/8 | 2 1/2 | 1.4 |
| 2 | 3 5/8 | 3 | 2.7 |
| 2 1/2 | 4 1/8 | 3 4/7 | 4.5 |
| 3 | 4 1/2 | 4 | 5.9 |
| 4 | 5 | 4 2/3 | 8.2 |
| 6 | 6 5/8 | 6 1/4 | 19.1 |
| 8 | 7 1/4 | 7 4/9 | 29.5 |
FIG 207
Recommended for air, water, oil, or gas service to 2,000 PSI NSCWP. A blanking cap with Buna-N ‘O’ ring seal provides an efficient and dependable closure. The threaded sub is interchangeable with Fig. 200 threaded sub. Also available with butt weld ends.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 6 | 3 3/4 | 2 3/4 | 4.45 |
| 4 | 4 5/7 | 3 1/2 | 7.38 |
| 6 | 5 4/7 | 4 5/6 | 17.1 |
FIG 211
Recommended for production systems with electrolytic corrosion problems Laminated insulating rings provide 35 million Ohms resistance across the unions. O-ring in male sub provides a positive primary seal. Seal ring in female sub delivers a positive secondary seal.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 1 | 2 3/4 | 2 1/8 | 0.9 |
| 2 | 3 1/2 | 3 1/8 | 2.7 |
| 3 | 3 3/4 | 5 3/4 | 4.5 |
FIG 300
Recommended for production systems with electrolytic corrosion problems Laminated insulating rings provide 35 million Ohms resistance across the unions. O-ring in male sub provides a positive primary seal. Seal ring in female sub delivers a positive secondary seal.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 1 | 2 2/3 | 2 | 0.8 |
| 2 | 3 1/3 | 3 | 2.4 |
FIG 400
Recommended for air, water, oil, or gas service to 4,000 PSI NSCWP. Utilizes precision ball and cone seating surfaces for easy alignment and dependable pressure seal. Sizes over 4″ are rated to 2,500 PSI NSCWP. Also available with a lip-type seal in 2″ size only as Fig 402.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 2 | 5 1/5 | 3 4/7 | 5 |
| 2 1/2 | 6 1/6 | 4 | 7.3 |
| 3 | 6 2/9 | 4 3/8 | 8.7 |
| 4 | 8 2/9 | 5 | 12.7 |
| 6 | 11 | 6 3/4 | 29 |
| 8 | 11 4/9 | 7 4/5 | 43.1 |
FIG 600
Recommended for air, oil, gas or steam service to 6,000 PSI NSCWP. Rugged and fast 2 pitch acme thread makes this the quickest unions to makeup or break out (only two turns). The threaded sub is fitted with a bronze seat insert for added effectiveness in pressure sealing.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 1 | 3 1/2 | 2 1/3 | 1.6 |
| 2 | 6 1/4 | 3 3/4 | 6.8 |
FIG 602
Recommended for air, water, oil, gas or mud service to 6,000 PSI NSCWP. This unions has a replaceable lip-type seal ring of Buna-N specifically designed to minimize fluid flow turbulence. Lip-type ring provides a pressure seal and protection for metaltometal seating surfaces. Smaller and lighter than Fig. 600 unions and are recommended for manifold and truck mounting where size and weight are critical.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 1 | 3 1/2 | 2 1/3 | 1.6 |
| 2 | 5 3/4 | 3 4/7 | 6.8 |
| 3 | 6 1/4 | 4 1/2 | 9.5 |
| 4 | 8 | 5 1/4 | 14 |
FIG 1002
Recommended for air, water, oil, gas and mud service to 10,000 PSI NSCWP. This unions has a replaceable lip-type seal ring of BunaN specifically designed to minimize fluid flow turbulence. The lip-type ring works similarly as in the Fig. 602 unions. These unions are for use on high pressure systems and trucks.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 1 | 3 1/2 | 2 1/3 | 1.6 |
| 2 | 5 3/4 | 3 4/7 | 7.3 |
| 2 1/2 | 6 1/8 | 3 7/8 | 8.2 |
| 3 | 6 2/9 | 4 3/8 | 9.5 |
| 4 | 8 2/9 | 5 | 14.5 |
FIG 1003
Recommended for high pressure manifolding and drilling rig use where alignment of piping components is a problem. Recommended for air, water, oil, gas or mud service to 10,000 PSI NSCWP. This unions has a ball seat that allows a total of 15 (±7½ ) angular adjustment. An ‘O’ ring seal in addition to the metal-to-metal seat assures a pressure tight connection.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 2 | 4 2/3 | 3 1/2 | 9.5 |
| 3 | 9 1/8 | 4 4/5 | 14.1 |
| 4 | 11 | 6 | 36.9 |
| 5 | 11 | 6 | 36.9 |
FIG 1502
Recommended for air, water, oil, gas and mud service to 15,000 PSI NSCWP. This unions has a replaceable lip-type seal ring of BunaN specifically designed to minimize fluid flow turbulence. The lip-type ring also provides a pressure seal and protection for metal to metal seating surface and are recommended for manifold and truck mounting or other installations where high pressure is encountered.
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 1 1/2 | 5 2/5 | 3 2/3 | 5.4 |
| 2 | 7 | 3 3/4 | 9.5 |
| 3 | 7 5/8 | 4 1/2 | 14.1 |
| 4 | 9 | 4 1/2 | 32 |
| 5 | 9 1/2 | 4 1/2 | 40 |
FIG 2002
Recommended for standard service to 20,000 PSI NSCWP. Available in butt weld end connections only. Available as Fig 2202 for sour service (15,000 PSI WP)
| Size (in) | Length (in) | Nut Radius (in) | Weight (in Kg) |
| 2 | 7 2/5 | 3 3/4 | 10.5 |
| 3 | 9 5/9 | 4 7/8 | 21.8 |
| 4 | 8 1/2 | 8 | 34.5 |
| 5 | 10 3/4 | 6 1/2 | 50 |