NAVCO BH Series User manual

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E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 1
NAVCO®BIN HOPPER VIBRATOR (BH SERIES)
OPERATION MANUAL

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 2
Table of Contents
Company Overview............................................................................................................ 3
Safety Information............................................................................................................. 4
Technical Data................................................................................................................... 6
Installation......................................................................................................................... 9
Operation & Maintenance.................................................................................................. 11
Lubrication ........................................................................................................................ 12
Handling ............................................................................................................................ 13
Troubleshooting ................................................................................................................ 13
Storage .............................................................................................................................. 14
Limited Warranty ............................................................................................................... 14

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 3
COMPANY OVERVIEW
NAVCO®, The National Air Vibrator Company, was founded in 1955 as a manufacturer of pneumatic piston vibrators used to facilitate
ow of bulk materials out of hoppers, bins, bunkers, and bulk material processing vessels. Since that time, NAVCO has become a
leading expert in material ow solutions. Our high quality, industrial grade, pneumatic piston vibrator line still remains at the core of our
business today.
At NAVCO, we strive to add value to our customers’ processes using our thorough knowledge of bulk material characteristics and the
application of vibration technology. Through a network of specialized representatives and distributors, we are able to maintain close
relationships with our customers and provide customized vibration systems and vibratory equipment solutions. From our facility in
Houston, Texas, we provide engineering, testing, manufacturing, sales and service capabilities to customers around the globe.

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 4
SAFETY INFORMATION
Silent BH Vibrator
SG0: vibrator operates by alternately directing air pressure
from one end of the housing to the other through a ported
piston. An air cushion is trapped at each end of the piston
stroke, preventing the piston from impacting the housing.
The repetitive linear motion of the piston creates vibration
energy. Variable frequency and amplitude is obtained by
regulating the air pressure from 20 to 60 psi.
NAVCO Bin Hopper (BH) series vibrators are intended to promote ow of dry bulk solid materials. BH vibrator models are available in air
cushioned (SG0), repetitive impacting (IG0) and single impact (IGT).
Repetitive Impact BH Vibrator
IGO: vibrator operates by alternately directing air pressure
from one end of the housing to the other through a ported
piston. An air cushion is formed in the top of the housing but
not at the bottom of the housing. This allows the piston to
impact the housing base. Variable frequency and amplitude
is obtained by regulating the air pressure from 20 to 60 psi.
Single Impact BH Vibrator
IGT: vibrator operates by using air pressure to create a single
impact of the piston into the housing base.
NOTE: Operating BH vibrators over 60 psi is not recommended.
Force output peaks at 60 psi. Overpressure reduces vibrator life.
Vibrators must have adequate lubrication at all times. See the
lubrication section for recommendations.

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 5
!
Work Safety
The symbol to the left signies safety
instructions which deal with danger to
the health and life of a person. These
instructions must be strictly observed.
The guidelines within this document
must be understood prior to operation of
the equipment. General local safety and
accident prevention regulations must be
observed in addition to the work safety
instructions in this operating manual.
Attention
The symbol above signies notes, regulations and guidelines
which deal with damage to or destruction of the equipment as a
result of improper operation.
ATTENTION
Symbols to Know
General Work Safety and Attention Instructions
It must be ensured that every person charged with the installation, operation and maintenance of the equipment has read and
understood this operating manual prior to commencing work.
If equipment is improperly operated by untrained persons, it may cause grave injury and damage.
1. The BH vibrator is intended exclusively for the application
agreed with the manufacturer.
2. The BH vibrator must only be operated in its original condition.
3. All maintenance work on the BH vibrator must only be carried
out while the equipment is off. Before starting work, ensure
that the equipment cannot be switched on accidentally or by
unauthorized persons.
4. A safety cable or chain must always secure the vibrator to
a supporting structure to prevent injury in case of mounting
failure.
ATTENTION
ATTENTION
!
!

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 6
TECHNICAL DATA
BH Vibrator Dimensions
Model A1
(in.)
B
(in.)
C
(in.)
D
(in.)
E
(in.)
F
(in.)
G2
(in.)
H
(in.)
J
(in.)
K - NPT3
(in.)
Wt.
(lbs)
BH 1.00 1/2 1/2 3-3/4 1-3/4 3-1/2 4-1/2 * 2 1/4 1/4 3
BH 1.25 1/2 3/4 5-5/8 3 4-1/2 6* 2-1/2 1/4 1/4 8
BH 1.62 5/8 1 7-1/4 3-3/4 7-1/2 9 * 3-1/4 1/4 1/4 18
BH 2.00 5/8 1 7-1/4 3-3/4 7-1/2 9 * 3-1/4 1/4 1/4 20
BH 3.00 7/8 1-1/8 9-1/2 5 7-3/4 10-1/2 3-1/4 5 3/8 3/8 50
BH 3L 7/8 1-1/2 12 6-1/4 7-3/4 10-1/2 3-1/4 5 3/8 3/8 64
BH 4.00 1 1-1/4 11-3/4 5-7/8 12 14-1/2 4 6-1/2 1/2 1/2 105
BH 5.00 1 2 16-1/2 8-1/2 12 14-1/2 4 7-1/4 1/2 1/2 180
BH 6.00 1-1/2 2 19-1/2 9-7/8 11 14-1/2 7 10-1/8 1/2 1/2 350
BH 8.00 2 2-1/2 22-1/2 11-1/2 13 16-1/2 8-1/2 12-1/4 3/4 3/4 650
1. Mounting bolt diameter
2. * Asterisk indicates two bolt mount
3. Single Impact Model See individual PDF

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P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 7
Performance
Sound Pressure Levels
Models @ 10 PSI @ 20 PSI @ 30 PSI @ 40 PSI @ 50 PSI @ 60 PSI
Silent
BH 1.00 58 64 71 72 73 75
BH 1.25 57 61 63 66 67 71
BH 1.62 60 65 68 73 74 76
BH 2.00 60 63 68 71 73 74
BH 3.00 60 67 72 74 76 77
BH 3L 69 74 78 79 82 83
BH 4.00 - 73 76 82 83 84
BH 5.00 - 72 76 81 83 85
BH 6.00 - - 70 75 78 79
BH 8.00 - - - - 79 82
Impacting
BH 1.00 60 66 73 84 86 87
BH 1.25 59 64 79 86 87 91
BH 1.62 94 95 97 99 102 102
BH 2.00 87 97 102 104 106 107
BH 3.00 69 77 86 92 96 98
BH 3L 70 73 78 91 94 96
BH 4.00 73 80 105 106 110 111
BH 5.00 - 93 97 103 105 106
BH 6.00 81 86 88 94 95 97
Readings are dBA (slow response). All measurements are 10’ –12’ from vibrator, inside concrete tile building.

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E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 8
Model
Frequency Cycles/Minute @ 50 psi Air Consumption SCFM, Operating @ 50 psi
Impacting Silent Impacting Silent
BH 1.00 7250 3600 3.3 3
BH 1.25 5250 3150 4.2 4
BH 1.62 5100 2200 7.5 7.2
BH 2.00 4750 2100 8.3 8
BH 3.00 3400 1800 11.6 11.6
BH 3L 3000 1450 14 14
BH 4.00 2750 1400 18.2 18.2
BH 5.00 1750 1175 28 28
BH 6.00 1250 900 35 35
BH 8.00 875 850 41 39
Performance

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 9
Bolt Torque Specication
Size (in.) Torque* (lbs.-ft.)
1/4 8
5/16 18
3/8 30
1/2 75
5/8 150
3/4 260
7/8 430
1640
1-1/8 790
1-1/4 1120
* Valid for grade 5 coarse thread only
Mounting Considerations
Reinforcement plates are always recommended. The
reinforcement plate should match bin wall thickness up to 1/2”.
A reinforcement plate of 1/2” thickness should be used on bin
walls exceeding 1/2” thickness. Refer to NAVCO installation
drawings for reinforcement plate dimensions.
If the hopper slope angle is greater than 70° from the horizontal,
a piston return spring is recommended to ensure positive
starting action (BH 1.62 through BH 6.00 only).
Vibrator(s) should be located according to NAVCO bin map or
installation drawing.
INSTALLATION
Mounting Instructions: Channel Mount
1. Determine proper mounting location. Assure a
mounting angle greater than 20°, unless ‘SP’ type.
2. Skip weld reinforcing bars to hopper. Do not weld
corners. NAVCO can recommend weld specications if
required.
3. Skip weld both channel legs to reinforcing bars. Do
not weld corners. NAVCO can recommend weld
specications if required.
4. Install vibrator and mounting bolts.
5. Install lock washer (if included) and nut. Torque
mounting hardware to recommended specication
(see torque table at beginning of Section 3).
6. Re-torque mounting hardware after 24 hours of
equipment operation.

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 10
Typical Air Control Package Arrangement
Mounting Instructions: T-Slot Mount
1. Determine proper mounting location. Assure a
mounting angle greater than 20°, unless ‘SP’ type.
2. Skip weld reinforcing plate to hopper. Do not weld
corners. NAVCO can recommend weld specications if
required.
3. Skip weld t-slot to reinforcing plate. Do not weld
corners. NAVCO can recommend weld specications if
required.
4. Insert bolts in slots and position vibrator onto t-slot.
5. Install lock washer (if included) and nut. Torque
mounting hardware to recommended specication
(see torque table at beginning of Section 3).
6. Re-torque mounting hardware after 24 hours of
equipment operation.

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 11
OPERATION & MAINTENANCE
Operations Instructions:
1. Install air control package (See Installation
Section).
2. Fill the lubricator with recommended lubricant (See
Lubrication Section).
3. Set the pressure regulator to 50 psi.
4. Open Valve.
5. Adjust the lubricator to approximately 10 drops of
oil per minute.
6. Allow vibrator to operate for ve minutes.
7. Inspect and re-torque ALL mounting fasteners and
air line connections.
8. Adjust air regulator for the lowest pressure that will
give the desired material ow performance, NOT to
exceed 60 psi.
Maintenance Instructions:
1. Check automatic lubricator and ll with
recommended oil type if level is low (See
Installation Section).
2. Check to see that air pressure is correctly set
for most efcient operation. If lter is installed
in system, drain to remove contaminants (water,
scale, etc.).
3. Check all air connections and tighten if necessary.
4. Torque any bolts that may have been loosened
over a period of time (maintenance/plant-
shutdown).
5. Be certain that vibrator is well lubricated at all
times. One way to check this is to place hand over
exhaust while running. A thin lm of oil on the palm
of the hand will conrm that the vibrator is being
lubricated properly.

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 12
LUBRICATION
NAVCO recommends the use of an oil mist type lubricator with NAVCO Pneumatic Piston Vibrators. It is important that the lubricator
be properly selected for the operating conditions of the vibrator. Contact your NAVCO sales representative for help with selecting the
proper lubricator.
The oil mist lubricator, when used with the vibrator, should be installed using an air hose of approximately 5 ½ feet connected directly to
the vibrator. The hose connection prevents excessive vibration from being transmitted to the lubricator.
NOTE: The lubricator should not be mounted on the structure or device to which the vibrator is mounted. The lubricator should
be installed at the same height as the vibrator or higher to ensure that the oil remains atomized in the air stream and is delivered
completely to the vibrator.
Before initial start-up of the vibrator, it is recommended to disconnect the hose from the lubricator and directly insert lubrication uid
into the hose. This will ‘prime’ the vibrator with oil at start-up.
The oil mist lubricator should be set to 5 drops of lube per minute for every 8 SCFM (with a minimum of 5 drips per minute). After the
vibrator has run for roughly ve minutes, a simple check will help determine if the level of lubrication is sufcient. Place your hand about
1 inch from any exhaust port on the vibrator for 8 to 10 seconds. A ne lm of oil should be deposited on your hand. If not, increase the
‘drops per minute’ on the lubricator until this condition occurs.
A sight glass is normally provided on the lubricator to indicate the level of lubrication uid in the lubricator reservoir. This sight glass
should be checked periodically and relled as required.
*THE VIBRATOR SHOULD NEVER OPERATE WITHOUT LUBRICATION*
A high-duty, low viscosity, low sludge residue, air percussion tool ISO 32 lubricant or 5 to 10W oil is the preferred lubrication for NAVCO
Pneumatic Vibrators.
All NAVCO vibrators are pre-lubed using Royal Purple Synlm 32 during factory testing. Royal Purple Synlm 32 lubricant is suitable for
operating temperatures from -75° to 500°F.
We highly recommend Royal Purple Synlm 32 or equivalent 10W oil.

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 13
HANDLING
1. To avoid danger to persons and damage of the vibrator, the vibrator must be handled with proper
care. Apart from the instructions below, as well as local safety and accident prevention regulations
must be observed.
2. If the unit is packaged, the handling gear must only be attached at the points marked.
3. The unit itself must only be lifted by the lifting eye or handle.
4. No additional pickup points should be attached to the vibrator by welding, ame cutting or drilling.
5. Transit damage must always be reported immediately to the manufacturer.
6. BH models ranging from 1” to 2” diameter may be lifted by hand by using appropriate lifting methods.
7. BH models ranging from 3” or higher must be lifted using appropriate lifting equipment such as hoists
or cranes.
ATTENTION
ATTENTION
ATTENTION
ATTENTION
ATTENTION
TROUBLESHOOTING
Problems Causes / Solutions
Vibrator will not start: Vibrator should be within 10-12 feet
of operating valve.
Be sure vibrator has adequate air pressure and volume available.
Check to see that quick opening operating valve is properly
installed.
Vibrator is sluggish and slow to start: Check for adequate lubrication.
Check for leaking airline or defective operating valve.
Check air supply for pressure and volume.
Scale or other contaminants may need to be removed from
interior.
Large erratic vibrations observed: Faulty mounting.
Check all bolt connections for proper torque. Tighten as
necessary.

CONTACT US TODAY AT
E. [e-mail] W. NAVCO.US
P. 832.467.3636 F. 832.467.3800
A. 11929 Brittmoore Park Dr.
Houston, TX 77041
Vibration Technology for Processing Bulk Materials
NATIONAL AIR VIBRATOR CO.
®
Page 14
STORAGE
1. Until its nal installation, the vibrator should be stored in closed, dry rooms.
2. In the case of seaworthy packing of the vibrator, this packing must not be damaged or opened during
transit and storage.
3. The vibrator must be left in the state it was supplied during storage. The manufacturer does not
accept liability for damage resulting from improper storage of the vibrator. ATTENTION
LIMITED WARRANTY
Seller warrants that the equipment will be of the kind and quality described in the order or contract and will be free of defects in
workmanship or material. Should any failure to conform to this warranty appear within one year seller shall, upon notication from
buyer, correct such non-conformity, including non-conformance with the specications, at its option, either by repairing any defective
part or parts, or by making available f.o.b. the seller’s plant, a repaired or replacement part.
This warranty is in lieu of all warranties of merchantability, tness for purpose or other warranties, express or implied, except of title and
against patent infringement. Correction of non-conformities, in the manner and for the period of time provided above, shall constitute
fulllment of all liabilities of seller to buyer, whether based on contact, negligence or otherwise with respect to, or arising out of such
equipment.
Neither party shall be liable for special, indirect or consequential damages. The remedies set forth herein are exclusive, and the liability
of seller with respect to any contract or sale, or anything done in connection therewith, whether in contract, in tort, under any warranty,
or otherwise, shall not, except as expressly provided herein, exceed the price of the equipment or part on which such liability is based.
The following conditions will determine warranty credit:
1. All vibrators must be installed with an inline lubricator.
2. All vibrators must be used with an inline lter and regulator.
3. All vibrators must be properly installed according to instructions, which could differ from those found in this manual.
4. All vibrators must be free of signs of abuse, misuse, or contamination of chamber by foreign material.
5. Vibrators must NOT be disassembled by customer.
6. To obtain credit, vibrators must be returned to NAVCO freight “prepaid.” NAVCO will prepay return freight on warranty vibrators.
Non-warranted repairs will be returned “collect.” NAVCO will provide a list of repairs and an estimate of repair cost. Repairs are
made on acceptance of this cost.