Dwyer APV User Manual

Series APV Piston Vibrator

A

IN

O

UT

D

ØC

ØH

Ø

B

Specifications - Installation and Operating Instructions

Bulletin P-10

Series APV Piston Vibrators that are air cushioned help to provide low

noise character. This makes it suitable for quiet area application. It is a
good solution to prevent clogs on tank walls and material delivery prob­lems. Piston impact types also can help to get rid of rust and material
accumulated inside pipes. Direct impact on a tank with low specific grav­ity and high moisture material inside will help prevent material build-up
and pipe clog or rust.

WORKING PRINCIPLE APV-C

There are air-breathing tubes located in both ends of the cylinder.
Compressed air pushes the piston from one side to the other side.
Vibration power arises as the piston moves back and forth in the body.
Air cushion at both ends produced by the to-and-fro compression will
keep the piston from striking the body. Therefore, the piston will not pro­duce much noise.

WORKING PRINCIPLE APV-I

There are air-breathing tubes located in both sides of the cylinder.
Compressed air pushes the piston away from one side and to the other
side. Vibration arises when the piston moves back and forth in the body.
Air cushion at the top end is produced by the to-and-fro compression.
This will keep the piston from striking onto the body top. The piston will
strike directly on the bottom side of the body to produce a strong impact.

odel

M

PV-C1, I1

A

PV-C2, I2

A

PV-C3, I3

A

A

5.43˝ (138 mm)

6.54˝ (166 mm)

8.19˝ (208 mm)

øB

3.15˝ (80 mm)

3.94˝ (100 mm)

5.51˝ (140 mm)

øC

2.36˝ (60 mm)

2.95˝ (75 mm)

4.13˝ (105 mm)

D

.47˝ (12 mm)

0

.63˝ (16 mm)

0

.63˝ (16 mm)

0

øH

0.79˝ (20 mm)

0.94˝ (24 mm)

0.94˝ (24 mm)

SPECIFICATIONS
Temperature Limit: 212°F (100°C).
Noise Level Range: APV-C: 60-75 dBA; APV-I: 80-115 dBA.
Supply Pressure: 29 to 87 psi (2 to 6 bar).
Air Consumption: See model chart.
Air Connection: 1/8˝ BSPT female with 1/4˝ OD push to connect

adapter on APV-C1 and APV-I1; 1/4˝ BSPT female with 1/4˝ OD push to
connect adapter on APV-C2, APV-C3, APV-I2 and APV-I3. Also includes
muffler for exhaust port.

Housing Material: Aluminum.

INSTALLATION

Vibration force transmits more efficiently in a conical hopper tank as
opposed to a rectangular hopper. It is recommended that you install two
vibrators in rectangular hoppers.

1. Vibrator force can be transmitted more efficiently by using “U” shape
steel supports. It can help materials run smoother in the tank or pipe. It
also reduces tank damage accidents.

2. To avoid tank wall amplitude caused by the vibrator moving in a left or
right direction, use “U” shape steel.

3. Reinforced board is required between “U” shape steel and a thin tank
wall.

4. To increase vibration fields in a big hopper tank, criss-cross “U” shape
steel.

onnection

C

/8˝

1

/4˝

1

/4˝

1

Frequency (V.P.M.)

Pressure Input

Model
APV-C1
APV-C2
APV-C3
APV-I1
APV-I2
APV-I3

V.P.M. = vibrations per minute

29 psi (2 bar)

1765
1333
1000
1973
1744
1277

58 psi (4 bar)

2308
1677
1200
2885
2459
1875

87 psi (6 bar)

2857
1875
1340
3571
3000
1973

29 psi (2 bar)

44 (195)
62 (275)
91 (404)
1818 (8086)
3245 (14443)
3470 (15434)

PROXIMITY CONTROLS

A DIVISION OF DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Attention: Vibration has to be fixed by a high tension bolt, washer, and

spring washer. Connect with a security cable if the vibrator is installed
onto a hopper.

Force lbf (N)

Pressure Input

58 psi (4 bar)

85 (380)
119 (531)
175 (780)
3044 (13542)
4934 (21948)
7799 (34692)

Phone: [phone] www.dwyer-inst.com
Fax: [phone] e-mail: [e-mail]

87 psi (6 bar)

126 (560)
161 (715)
231 (1030)
3996 (17776)
6048 (26904)
8276 (36816)

Air

Consumption

(l/min)

8.12 (230)

8.79 (249)

9.50 (269)

8.8 (250)

9.5 (270)

10.6 (300)

Weight

lb (kg)

1.98 (0.9)

4.19 (1.9)

9.92 (4.5)

2.2 (1.0)

4.6 (2.1)

10.6 (4.8)

APV-C SERIES

APV-I SERIES

VIBRATION FORCE CALCULATION

Taking the accumulated situation into consideration, the appropriate
vibrator will give 0.2~0.5 G accelerated vibration onto the target object.

F=0.2-0.4GW F: Vibration force (N)

G: Acceleration of gravity
W: Material weight (KG)

MATERIAL WEIGHT CALCULATION

(1)

Generally speaking, the hopper portion of the tank should be taken into
consideration.

MAINTENANCE

Upon final installation of the Series APV Piston Vibrator, no routine main­tenance is required. A periodic check of the system calibration is recom­mended. The Series APV is not field serviceable and should be returned
if repair is needed (field repair should not be attempted and may void
warranty). Be sure to include a brief description of the problem plus any
relevant application notes. Contact customer service to receive a return
good authorization number before shipping.

NOTES:

Various tanks are based on application requirement. Customers choose
appropriate vibrator types to meet with various application demands
(tank shape, material, applied material, etc). Suitable vibrators will not
only prevent obstruction problems but won’t damage the tank walls.

Large amplitude and low frequency piston types fit in granule with small
S.G. applied material. It is recommended to use multiple vibrators in
serious clog situations or large tank surroundings.

According to various clog situations, required vibrations and suitable
install positions (usually 1/2 L or 1/3 L) are shown above.

©Copyright 2014 Dwyer Instruments, Inc. Printed in U.S.A. 5/14 FR# R6-443510-00 Rev.2

PROXIMITY CONTROLS

A DIVISION OF DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: [phone] www.dwyer-inst.com
Fax: [phone] e-mail: [e-mail]