BJV-H9 Self-Rotary Swivel (40 kpsi)
Description:
The BJV-H9 has a 9/16 high pressure female inlet connection. It is capable of working pressures up to 40,000 psi (2800 bar) and
flow rates of 3.5 to 20 gpm. Speed is controlled by a viscous fluid; a thick fluid (BJ 048-S) is used for speeds of 10 to 80 rpm, and
a thinner fluid (BJ 048-F) is used for speeds of 50 to 200 rpm. The fluid in the swivel can be changed to provide either fast or slow
rotation. The heads have either 3/8-24 nozzle ports or a special port to receive an extension nipple with O-ring, shown at right.
Stamped or engraved on the BJ nozzle head is an R followed by a number, such as R70 or R.40. This number is the offset
of the head that makes it rotate. This number must match the flow range given in the table below. If your flow is 8 gpm, you
should have a head with R40 on it. If it has an R25 on it, the tool will not rotate, because not enough rotating force (torque)
will be produced. If the head is an R70, the tool will spin too fast and wear out quicker.
The next step is to determine where the jets should go in the head. Remember that using more jets
will mean they must be smaller and not hit as hard. The thrust of the jets can be used to pull the tool
thru the pipe. If no pull is needed, as few as two jets can be used, just in the 90 degree ports. If jet
pull is needed, use two jets in the back ports, as big as they need to be to produce the pull needed,
then put jets in other ports for effective cleaning. There is also a pulling ring (HC 097) available that
attaches to the head, so a cable can be used to pull the tool so no back jets are used. When
installing nozzles into the head, we recommend using Blue Goop. Also use this if installing the head
onto the swivel shaft.
Operation:
Make sure there is an operator controlled dump in the system, operated by the person closest to the cleaning job. Flush out the high pressure hoses before connecting
BJV to hose end. It is recommended that the hose be marked a few feet from the end with a piece of tape so the operator knows when to stop on the way back out. Once
the BJV is attached to the hose end, position it in the pipe or vessel to be cleaned. The high pressure seal may leak initially; it should stop when pressure is increased
and rotation begins. Close the dump and slowly bring up to pressure the first time, to make sure no nozzles are plugged and that the jet thrust is correct. The swivel
should begin to slowly rotate. Once operating pressure is reached, feed the tool into the pipe to begin the cleaning job. Allow the jets time to do their work by feeding the
hose out at a controlled rate. Once the work is complete and the tool is disconnected from the hose, blow out all water to prolong the life of the tool. A small amount of oil
can be blown into the inlet nut as well.
Troubleshooting:
Head will not rotate: First try rotating head by hand and see if it feels rough or gritty to turn. If it does, the tool must be disassembled and repaired. If the head starts to
rotatebut as pressure is increased it slows down and stops, it likely has bad bearings. If the tool feels okay, check to see if any nozzles are plugged; even if a nozzle is
only partially blocked it can keep the head from rotating. Nozzles must be removed from the head to properly clean them; it does not do any good to poke the material
plugging the nozzle back into the head, as it will just replug a nozzle. If none of these are the problem, the jets are too small or the head offset is not correct; refer to the
above description about the head offset and double check the nozzle sizes to make sure they are correct for the expected flow rate.
Head spins too fast: Check the nozzles sizes and head offset to make sure they are correct; refer to the description section above. If these are correct, it is likely that the
swivel is low on viscous fluid, or the viscous fluid has water in it. The best thing to do is drain all the fluid, wipe the parts clean and refill with the proper fluid. Check that
the shaft seals are still good and will keep the fluid from leaking out.
Seal Leak: The seal may initially leak at low pressures, but should pop closed as pressure is increased. If operating pressure is reached and the seal is leaking
continuously, the high pressure seal may need to be replaced. Refer to the maintenance below.
Seals wear out quickly: The tool must be disassembled and inspected. The carbide seat should be checked for being installed in the right direction, and it should not
have any chips or erosion marks on it. Inspect the Seal Holder (BJ 420) and replace it if it has a groove in the inside bore.
Maintenance:
Keeping the tool full of viscous fluid is the most important
maintenance procedure for long tool life. It should be done
when the tool begins to rotate faster than usual; this can
occur between 50 and 100 hours.
1. Hold swivel upright as shown. Remove the Port Screws
(BJ 026) from the Inlet Nut and the Body.
2. Fill the Syringe (BC 410) by unscrewing the handle and
pouring the correct viscosity viscous fluid in from the back
end.
3. Thread Syringe into port in Body; squeeze fluid into
swivel. Repeat until clean fluid comes out port in Inlet
Nut. Remove Syringe and install Port Screws.
BC 410
Syringe
BJ 028
BJ 032
Piston
Retaining Ring
BJ 014-D
Wave Springs (2)
RJ 029
Shaft Seal
BJ 008
O-Ring
For terms and conditions of sale see: http://www.stoneagetools.com/terms
For limited warranty see: http://www.stoneagetools.com/warranty
For applicable patents see: http://www.sapatents.com
BJ 417
O-Ring
BJ 422
Inlet Seat
GO 123
O-Ring
BJ 420
Seal Holder
BJ 412-O
H.P. Seal
BJ 411
Seat
BJ 402
Inlet Nut
BJ 010-D
BJ 030
Shaft Seal
O-Ring
BJ 026
Port Screw
BJ 411
Seat
BJ 402
BJ 412-O
Inlet Nut
H.P. Seal
Offset
30kpsi
35kpsi
40kpsi
BJ 420
Seal Holder
BJ 416
O-Ring
BJ 412
H.P. Seal
BJ 411
Seat
Chamfered Face
To replace the High Pressure Seal:
1. Remove the Port Screw (BJ 026) in the Inlet Nut. Unscrew the Inlet
Nut (BJ 402) from the Body.
2. Remove the O-Ring (BJ 417) from the rear of the Inlet Nut.
3. Push out the Seal Holder (BJ 420) , with Seat (BJ 411), H.P. Seal
(BJ 412-O) and the Inlet Seat (BJ 422).
4. Inspect the Seat (BJ 411) for chips or erosion pits. Inspect the face
of the Shaft where the Seat makes contact for dings, dents, or erosion.
5. Apply anti-seize to the threads of the Inlet Nut (BJ 402) and thread
into Body. Tighten to 50 ft-lb and install the Port Screw (BJ 026).
6. Apply grease to new H.P. Seal and install in Seal Holder (BJ 420).
The end with the O-Ring (BJ 416) goes in first, away from the Seat.
Apply grease to the flat face of the Seat (BJ 411) and stick this side
to the H.P. Seal, as shown in detail above.
7. Place this assembly onto the Inlet Seat (BJ 422) and slide all of these
parts into the Inlet Nut. They should go in far enough to allow placing of
the O-Ring (BJ 417) in the groove behind them.
Available Maintenance Kits:
BJ 600-H9-x Service Kit (Includes items needed for maintenance)
BJ 602-H9
Seal Kit
BJK 003
BJ 610-H9-x Overhaul Kit (Includes parts needed for tool rebuild)
Body
BJ 612-H9
Tool Kit
BJ 007
BJ 072
Bearing
O-Ring
BJ 071
Backup Ring
BJ 026
Port Screw
(BJ 416
O-Ring)
GO 123
O-Ring
BJ 420
BJ 422
Seal Holder
BJ 417
Inlet Seat
O-Ring
BJ 441 Head
SA 061 O-Ring
SA 569-G9S6 Nipple
R70
R40
3.9 - 6.7 gpm
6.7 - 11.9 gpm
3.6 - 6.2 gpm
6.4 - 11.0 gpm 10.0 - 18.0 gpm
3.4 - 5.8 gpm
5.8 - 10.2 gpm
Detailed View:
(Includes parts needed for one seal change)
(Includes tools to aid assembly)
BJ 401
Shaft
BJ 021-S
Weep Seal
PL 519 © 02/01/2017 StoneAge , All Rights Reserved
R25
10.9 - 20 gpm
9.3 - 17.1 gpm
SG 009
Bearing
®
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