Author Archives: Campbell Fittings

Hydrostatic Test Report: 4″ Frac Fitting

COUPLINGS

Crimpnology Nipple: 4” Frac Fitting, both males – Fitting/ferrule system rated to 400 psi. WP

TESTED HOSE SYSTEM

Frac Blender Hose: 4” Goodyear Oilfield Fracturing Hose with ARC rated to 400 psi.

ATTACHMENT

Crimped: plated steel long ferrules

GOAL

To exceed 1600 psi. (hose WP of 400 psi. @ 4 to 1 Safety Factor)

RESULTS

Couplings and hose exceeded 4 times WP. Hose Burst at 1715 psi.

This test was conducted to ASTM D380 standards. See engineering details below.

HOSE

4″ “GOODYEAR OILFIELD FRACTURING HOSE WITH ARC #543-710-123 400 PSI WP” 36008 Made in Canada, initial length of 28-1/2″. This is the same hose as tested on 9-27-11 with our 206 one-piece hammer union product.

END CONNECTION #1

Assembled by Campbell, a prototype FRAC-16C fitting, specifically designed for use with FRAC hose to match the 400 psi. rating most FRAC hoses are rated. A modified FPS400460L plated steel ferrule, modified to turn it into what will become an FPS400460F plated steel ferrule with a specific length to match the FRAC-16C fitting. The hose wall on this end measured between .405″ and .446″ with a .433″ average. Our current crimp specification guide was consulted and we followed the same crimping information as the 206 one piece hammer union in 4”, page 14. The crimp for this end was interpolated for a final crimp diameter of 4.938″. No lubrication was used and due to a slightly oversized hose ID, the fitting easily pushed right into the hose. The assembly was crimped on a CC-600 crimper using #120 dies. This end was connected to our tester manifold using a 4″ bell reducing coupling to end in a ground joint spud for our usual 3/4″ ground joint tester connection. The tester nut was hand tight. Teflon tape and pipe dope was used on the NPT threads. See first connection and first connection close up photos.

END CONNECTION #2

Assembled by Campbell, using the same fitting as above but due to thinner hose wall, an FPS400456F (a modified FPS400456L) was used. The hose wall on this end measured between .405″ and .412″ with an average of .408″. The same page in our guide was used and a final crimp diameter was interpolated to be 4.899″. Similarly, this end pushed right in as well. This end was connected to our standard 4″ NPT machined end cap with a high-pressure valve tap. Teflon tape and pipe dope was used on the NPT threads. See second connection and second connection close up photos.

TEST

The assembly was filled with water and air was evacuated from the system by use of the valve at the free end. Water flowed through the assembly for about 60 minutes to stabilize temperature. Our final test temperature was 69.5°F. The assembly was made up and crimped 24 hours before the test. See in tester and inlet temp photos.

Pressure was increased, per ASTM D380 parameters and observed closely for hose stretch under the ferrule. Less than 1/64″ of measurable stretch under the ferrule was seen at 800psi, about 1/32″ to 3/64″ at 1200 psi, 1/8″ at 1600 psi and about 3/16″ by 1700 psi. The hose diameter grew quite large so a picture was captured looking through the tester glass at 1200 psi, and then again at 1600 psi. so a reference as to how large the hose OD gets could be viewed. The hose burst in a violent and wet eruption, spraying water in between the tester lids, soaking the on-lookers. The highest pressure recorded was 1715 psi. The hose tear was large, measuring about 8″ in length almost at the exact center of the exposed hose. Permanent hose stretch left after the test was about 1/32″ at both ends. The end of the hose, as viewed through the ferrule slot window, was about the same, 1/32″. See 1200 psi, 1600 psi, burst-1, burst-2, peak, end 1, end 1 close up, end 2 and end 2 close up photos.

CONCLUSION

This test was performed to test our newest fitting design, the FRAC-16C on a third different fracturing hose. Based on this test, the hose and fitting went to 4.29 times their rating, good performance for both. We are quite pleased with the performance of the new FRAC-16C fitting. Based on this test and previous testing, the rating of 400 psi @ 70 F is appropriate for the new FRAC-16C fitting properly assembled and crimped using an FPS4004XXF ferrule.

Prepared by Randi Kremer, Engineer

Photos

Hydrostatic Test Report: 4″ 206 Hose Union

COUPLINGS

206 Hose Union: 4” 206 Hose Union, Male x Female – Coupling/ferrule system rated to 500 psi. WP

TESTED HOSE SYSTEM

Frac Blender Hose: 4” Goodyear Oilfield Fracturing Hose with ARC rated to 400 psi.

ATTACHMENT

Crimped: plated steel long ferrules.

GOAL

To exceed 1600 psi (hose WP of 400 psi. @ 4 to 1 Safety Factor)

RESULTS

Hose exceeded 4 times WP. Hose burst at 1934 psi.

This test was conducted to ASTM D380 standards.  See engineering details below.

HOSE

4″ GOODYEAR OILFIELD FRACTURING HOSE WITH ARC #543-710-123 400 PSI WP 36008 Made in Canada, initial length of 24-3/4.

END CONNECTION #1

Assembled by Campbell, 206MHUD-16C, a 4″ Campbell figure 206 male hammer union hose stem with a FPS400460L plated steel ferrule. A trace amount of lubrication was used and assembly was relatively easy, requiring little force and no pounding. The hose wall on this end measured between .402″ and .420″ with a .409″ average. The latest crimp chart A, due to expire 4-30-12, was interpolated for a crimp of  4.901″ using the specification for a 4″ long crimpnology nipple. This end was crimped on a Custom Crimp cc-600 crimper using # 120 dies. This end was connected to our tester manifold using a 206NHUS-16, a 4″ Campbell steel hammer union nut to connect to a 4″ female FMC hammer union by 4″ NPT. This was connected to a 4″ x 2″ NPT reducer bushing, a 2″ x 3/4″ NPT reducer bushing, and a GMS-3, 3/4″ male spud to our usual 3/4″ ground joint and attached to the tester via a length of previously used 1″ steam hose with ground joints and ferrules. The tester nut was hand tight and the hammer union nut was mildly hammered tight. Teflon tape and pipe dope was used on the NPT threads.  See first connection & first connection-1 photos.

END CONNECTION #2

Assembled by Campbell, 206FHUD-16C, a 4″ Campbell figure 206 female hammer union hose stem using the same ferrule and methods as above with the following exceptions. The hose wall on this end measured between .403″ and .421″ with an average of .415″. This end was interpolated for a crimp of  4.910″ by using the current crimp chart for a long shank crimpnology nipple. This end was connected to our standard ground joint valve adapter with valve attached by using a 4″ FMC hammer union nut to connect to a 4″ male FMC hammer union by 4″ NPT. This was connected to a 4″ x 2″ NPT reducer bushing, a 2″ x 3/4″ NPT reducer bushing, and a GMS-3, 3/4″ male spud. The tester nut was hand tight and the hammer union nut was mildly hammered tight. Teflon tape and pipe dope was used on the NPT threads.  See second connection & second connection-1 photos.

TEST

The assembly was filled with water and air was evacuated from the system by use of the valve at the free end. The coldest water available was flowed through the assembly for over an hour to stabilize temperature. Our final test temperature was 74° F, rather than the standard 70° F, because the municipal water system was unable to go any colder after over an hour of flow. The assembly was made up and crimped 24 hours before the test.  See inlet temp and in tester photos.

Pressure was raised rapidly within ASTM D380 parameters and observed at various stages. The hose elongated during pressurization until the hose burst.  See burst and close-up photos.  The highest pressure recorded was 1924 psi.  No movement occurred at either end of the hose assembly, See end 1 and end 2 photos.

prepared by Eric M Schrack, Engineer

Photos

Hydrostatic Test Report: 10″ Combo Nipple

COUPLINGS

Male thread: 10” Campbell Combination Nipple Square Cut, both ends – Fitting/sleeve system rating to TBD.

HOSE

Water transfer hose: 10” Goodyear Plicord HD rated to 100 psi.

ATTACHMENT

Crimped: plated steel sleeves.

GOAL

To exceed 300 psi (hose WP of 100 psi. @ 3 to 1 Safety Factor for water service).

RESULTS

The hose exceeded 3 times WP. Hose burst at 360 psi.

This test was conducted to ASTM D380 standards except for slow pressurization due to the large volume of the assembly. See engineering details below.

HOSE

10″ Goodyear Plicord HD hose, initial length of 24″, WP of 100 psi. This hose can best be described as a thin wall hose comprised of a black slippery inner liner about 1/16″ thick, followed by an off-white colored fabric appearing reinforced layer, more rubber, more fabric and the final outer layer of a black colored unknown elastomer.

END CONNECTION #1

Assembled by Campbell, HAS-40 SQ, a new steel 10″ Campbell combination nipple with a square cut end, welded to a 1/2” thick plate for closure. A SPS101048 plated steel sleeve was used. The assembly was very easy by placing the hose inside the sleeve, then dropping the hose over the fitting. The hose wall on this end measured between .295″ and .304″ for a .300″ average. The latest crimp chart A, due to expire 4-30-12, was read for the selected sleeve and interpolated for the crimp diameter. This end was crimped to 10.714″ using a Custom Crimp CC-1000 with # 215 dies. The crimp was accomplished using multiple hits to creep up on the accurate crimp and not cause finning or bumps since the crimp dies were much smaller than the sleeve. The crimp diameter was verified with a pi tape. A GFS-3 female spud was welded to the closure plate of the HAS-40 SQ and attached to the tester via a length of previously used 1″ steam hose with ground joints and ferrules. The end of the sleeve was marked on the nipple and hose end, see first connection photos. The end of the sleeve was marked on the nipple and hose end, see first connection photos.

END CONNECTION #2

Assembled by Campbell, HAS-40 SQ, a new steel 10″ Campbell combination nipple with a square cut end, welded to a 1/2” thick plate for closure, with the same sleeve and methods as above with the following exceptions. The hose wall on this end measured between .294″ and .312″ for a .303″ average. The latest crimp chart A, due to expire 4-30-12, was read for the selected sleeve and interpolated for a crimp diameter of 10.718″. This end was connected to our standard ground joint valve adapter with valve attached using a GFS-3 female spud that was welded to the closure plate of the HAS-40. The end of the sleeve was marked on the nipple and hose end, see second connection photos. All of the assorted ground joint connection nuts were hand tight.  The end of the sleeve was marked on the nipple and hose end, see second connection photos.  All of the assorted ground joint connection nuts were hand tight.

TEST

TThe assembly was filled with water while the second end was propped up so air could be evacuated from the system by use of the valve at the free end. Water was flowed through the assembly for about 1 hour while the system was “burped”. Inlet water temp was steady around 82° F.   See in tester-1, in tester-2, and inlet temp photos.  The assembly was made up and crimped 24 hours prior to testing.

Pressure was raised steadily but slow due to the extremely large volume of the tested assembly. Pressure rise was steady throughout the entire test. Pictures showing hose expansion and stretch under the sleeve were taken during the test, see test 200 psi & test 300 psi photos.  The hose burst in a violent rip across the entire length of hose between the two sleeves.  The highest pressure recorded was 360 psi, see hose burst and peak photo.

There was no permanent movement of the fittings or sleeves throughout the entire test.  See end 1 and end 2 photos.

prepared by Eric M Schrack, Engineer

Photos

Hydrostatic Test Report: 2″ Ground Joint

COUPLINGS

Ground Joint Couplings: 2” Viton Seal, female x female – Coupling/ferrule system rated to 1000 psi. WP

TESTED HOSE SYSTEM

High Pressure Air: 2” Goodyear Gorilla rated at 500 psi.

ATTACHMENT

Crimped: plated steel long ferrules

GOAL:

To exceed 2000 psi. (hose WP of 500 psi. @ 4 to 1 Safety Factor)

RESULTS

Hose exceeded 4 times WP. Hose burst 2127 psi.

This test was conducted to ASTM D380 standards.  See engineering details below.

HOSE

2″ Goodyear Gorilla, 500 psi W.P.; initial length of 18.”

END CONNECTION #1

: Assembled by Campbell, GJS-8, a 2″ ground joint Viton hose stem, a RGN-8 nut with a FPS200240L plated steel ferrule. The hose wall on this end measured between .265″ and .275″ with a .272″ average. Assembly was relatively easy and required no lubrication or pounding; only force. This end was crimped to 2.554 “. The ferrule was selected and the crimp diameter interpolated from the newest crimp chart, due to expire 4-30-11. This end was crimped on a Custom Crimp cc-600 crimper using 63mm dies. This end was connected to our tester manifold using a previously used GFS-8 2″ spud with a 2″ x 3/4″ reducing bushing and a GMS-3 male NPT 3/4″ spud through our usual 3/4” ground joint style connection. Teflon tape and pipe dope was used on the NPT threads.  See first connection photo.  Both the RGN-8 and tester nuts were hand tight.

END CONNECTION #2

Assembled by Campbell, GJS-8, a 2″ ground joint Viton hose stem, a RGN-8 nut with a FPS200240L plated steel ferrule. The assembly was as above with the following exceptions. The hose wall on this end measured .268″ to .275″ with a .271″ average. The interpolated crimp of 2.553 was done on the same crimper. This end was connected to our standard ground joint valve adapter with valve attached using a previously used GFS-8 2″ spud with a 2″ x 3/4″ reducing bushing and a GMS-3 male NPT 3/4″ spud through a 3/4″ ground joint connection. See second connection photo.

TEST

The assembly was filled with water and air was evacuated from the system by use of the valve at the free end of the assembly. All components and the assembly were at a test temperature of about 70° F. The assembly was made up and crimped 24 hours before the test.  See inlet temp and in tester photos.

Pressure was raised rapidly and observed at various stages, within ASTM D380 parameters.  The Hose elongated slightly during pressurization until it burst near the middle of the assembly. See burst photo.  The highest pressure recorded was 2127 psi.  See peak photo.  No hose movement relative to the fitting was noted at either end.  See End 1 and End 2 photos.

CONCLUSION

Based on this test, the hose working pressure of 500 psi. at 70° F, has been verified. This test exceeded the working pressure of the hose by a 4 to 1 safety factor.

These fittings on rubber hose have a WP of 1000 psi. at 70° F, however the hose did not survive to a pressure high enough to test the fitting at 4 times its working pressure.

prepared by Eric M Schrack, Engineer   

Photos

Hydrostatic Test Report: 4″ Crimp Nipple Long Shank

COUPLINGS

Male thread: 4” Campbell Long Shank Crimpnology Nipple, both ends – Fitting/ferrule system rated to 500 psi. WP

TESTED HOSE SYSTEM

Oilfield Hydraulic Fracturing Hose: 4” Goodyear Oilfield Frac Hose with ARC rated to 400 psi.

ATTACHMENT

Crimped: plated steel long ferrules.

GOAL

To exceed 1600 psi. (hose WP of 400 psi. @ 4 to 1 Safety Factor).

RESULTS

Hose exceeded 4 times WP. Hose burst at 1751 psi.

This test was conducted to ASTM D380 standards with the possible exception of slow pressurization. See engineering details below.

HOSE

4″ Goodyear Oilfield fracturing hose, 400 psi WP initial length of 24-9/16.” Layline has ARC# 543-710-123. This hose has a slick inner tube, of nitrile rubber. It also has an outer cover which is more slick to the feel than a more standard rubber outer wrap, this difference in outer cover friction may possibly have an effect on retention based on reduced friction buildup between the inside of the ferrule and the outer hose surface.

END CONNECTION #1

Assembled by Campbell, with an HALPS-16C, a long shank Crimpnology nipple with an FPS400456L plated steel long ferrule. Assembly was not difficult, in fact, the natural ID of this hose is slightly on the high range, the ferrule was very snug, however the fitting slipped right in. The hose wall on this end measured between .407″ and .427″ for a .417″ average. The current crimp chart was interpolated and this end was crimped to 4.927″ on a Custom Crimp CC-600 using 120 dies in multiple hits to ensure an accurate size. Crimp diameter was verified within .010″. No noise was heard during the crimp process. This end was connected to our tester manifold using a 4″ female NPT x 3/4″ ground joint spud adapter connected through our usual 3/4″ ground joint style connection on the tester. Pipe dope and Teflon tape was used on the NPT threads.  See first connection photo.  The tester nut was hand tight.

END CONNECTION #2

As above with the following exceptions. The hose wall on this end measured between .404″ and .412″ for a .408″ average. The same chart as above was also interpolated for a crimp diameter of 4.913″ using the same crimper, dies and methods. This end was connected to a 4″ female NPT valve adapter with valve attached. As above, pipe dope and Teflon tape was used on the NPT threads. See second connection photo.

TEST

TThe assembly was filled with water and air was evacuated from the system by use of the valve at the free end. Due to cool room and component conditions, water of about 73F was flowed through the assembly for slightly over 1 hour to both push the air out and equalize temperature. Note a temperature drop between thermometer and hose is 2-3F, so actual test temperature of the hose is as close to 70 F as possible.  See inlet temp and in tester photos.  The assembly was crimped 24 hours before the test.

Pressure was raised steadily but was slowed due to significant expansion of the hose and the amount of water required to producing this expansion. This hose does not have any spiral wires, hence its expansion is expected to be greater than a similar hose with wires. Two pictures were captured around 1450 psi to show this expansion relative to the outside of the ferrule.  See End 1 1450-psi and >End 2 1490-psi photos.

Pumping continued and additional photos were attempted just above 1700 psi when the hose actually burst. The hose burst with a rather violent rupture leaving a large hole very near the exact center of the 16″ exposed length. The highest pressure recorded was 1751 psi. , see hose burst, close-up-1, close-up-2, burst location and peak photos.

The outer cover that the layline is printed on can be clearly seen around the burst area, as this cover ripped and pulled away from the outer layer of the hose, see close-up-3 photo.

There was very minimal hose movement under the ferrule on both ends of this assembly. Based on the initial marks made at the ferrule ends and marks or measurements made at the ferrule slots. Movement was measured to be 1/32″ at the first connection and 1/16″ at the second connection. See end 1 ferrule slot start, end 1 ferrule slot finish, end 1 ferrule mark finish and end 2 ferrule mark finish photos.

Certainly using this fitting and hose combination at 400 psi @ 70 F as rated by the hose working pressure would be considered safe and adequate.

prepared by Randi Kremer, Engineer

Photos

Hydrostatic Test Report: 2″ Campbell Cobra 316

COUPLINGS

Cam & groove couplings: 2” Campbell Cobra stainless steel parts C x E – Coupling/ferrule system rated to 250 psi. WP

TESTED HOSE SYSTEM:

Chemical hose: 2” Goodyear Viper rated to 200 psi.

ATTACHMENT

Crimped: stainless steel ferrules

GOAL:

To exceed 800 psi. (hose WP of 200 psi. @ 4 to 1 Safety Factor)

RESULTS:

Couplings and hose exceeded 5 times the WP. Hose burst at 1190 psi.

This test was conducted to ASTM D380 standards.  See engineering details below. 

HOSE

2″ Goodyear Viper chemical hose, 200 psi. WP; initial length of 18-1/2.”

END CONNECTION #1:

Assembled by Campbell, C-316-200C, a new 2″ Campbell Cobra stainless part C interlocking hose coupler with a FSS200240 stainless steel ferrule. The assembly was rather difficult, requiring significant pounding but no lube. The hose wall on this end measured between .276″ and .312″ for a .294″ average. The current crimp chart due to expire on 12-31-8 was referenced and interpolated for a crimp 2.589″. This end was crimped to 2.589″ on a Uniflex S10i using 62 dies in a few hits to be assured of the correct crimp diameter. This end was connected to a previously used A-SS-200 2″ female NPT part A with a 2 X 1″ reducing bushing with a GMS-4 1″ male spud through our tester ground joint style connection. Teflon tape and pipe dope was used on the NPT threads. The tester nut was hand tight. See first connection photo.

END CONNECTION #2:

Assembled by Campbell, E-316-200C, a new 2″ Campbell Cobra stainless part E interlocking hose adapter with a FSS200240 stainless steel ferrule as above however this end assembled far easier than the first with only a few hits but no lube. The hose wall on this end measured between .268″ and .298″ for a .283″ average. The same chart was interpolated for a crimp of 2.571″ using the same crimper and dies. This end was connected to a previously used B-316-200 2″ male NPT coupler with a 2″ female valve adapter with valve attached. Teflon tape and pipe dope was used on the NPT threads. See second connection photo.

TEST:

The assembly was filled with water and air was evacuated from the system by use of the valve at the free end. Due to a slightly cool room and component temperatures, warm water of about 71F was flowed through the assembly for about 20 minutes to get an assembly test temperature of 70° F. See inlet temp and in tester photos. The assembly was made up and crimped 24 hours before the test. The cam and groove parts were put together just before going in the tester.

Because of the straightness of the hose as seen in the in tester photo, elongation measurements were made at 0, 200, 400, 600, 800 & 1000 psi and were 34″, 34 1/2″, 35 1/2″, 36 1/4″, 37″ & 37 1/2″ respectfully. The hose did exhibit 3 1/2″ max elongation (at the 1000 psi) from the original 14″ exposed length, which calculates to a 25% elongation.

Pressure was raised steadily until the hose failed in the middle of the exposed length of hose, see burst photo and close up photo.  The highest pressure recorded was 1190 psi., see peak photo.  There was no movement or leaks detected until the hose failed. The first end showed about 1/32″ of the hose elongation between the ferrule and fitting, see first end photo.  The second end showed no elongation between the fitting and ferrule, see second end photo.  Neither end had any movement of the end of the hose under the ferrule.

prepared by Randi Kremer, Engineer, Campbell Fittings Inc.

Photos