Tuthill KVA Series User manual

KINNEY®
Single Stage Rotary Vane Pumps
KVA Series
Models
KVA12 KVA40 KVA160 KVA630
KVA21 KVA63 KVA250
KVA25 KVA100 KVA400
OPERATOR’S MANUAL
Manual 1865 Rev B p/n 001865 0000
Tuthill Vacuum & Blower Systems tuthillvacuumblower.com 800.825.6937
WARNING: Do Not Operate Before Reading Manual
Operator’s Manual: Tuthill KVA Series Single Stage Rotary Vane Pumps
Copyright © 2018 Tuthill Vacuum & Blower Systems
All rights reserved. Product information and specications subject to change.

Disclaimer Statement:
All information, illustrations and specications in this manual are based on the latest information available at
the time of publishing. The illustrations used in this manual are intended as representative reference views only.
Products are under a continuous improvement policy. Thus, information, illustrations and/or specications to
explain and or exemplify a product, service or maintenance improvement may be changed at any time without
notice.
Rights Reserved Statement:
No part of this publication may be reproduced or used in any form by any means - graphic, electronic or me-
chanical, including photocopying, recording, taping or information storage and retrieval systems - without the
written permission of Tuthill Vacuum & Blower Systems.
Copyright © 2018 Tuthill Vacuum & Blower Systems
All rights reserved. Product information and specications subject to change.
The employees of Tuthill Vacuum & Blower Systems thank you for your purchase!
Tuthill Vacuum & Blower Systems proudly manufactures
Kinney®vacuum pumps and M-D PneumaticsTM blowers and
vacuum boosters in Springeld, Missouri, USA. We bring
100+ years of engineering experience and solid, hands-
on care to help customers keep their processes running.
Your satisfaction is important to us so please take time to
provide your Tuthill sales representative with performance
feedback. We love to hear from our customers!
Tuthill is a family owned business that was started by James
B. Tuthill in 1892. At that time, Tuthill manufactured com-
mon brick to Chicago construction companies who were
fueling the city’s rapid expansion. Fast forward to today
and Tuthill now serves sustaining, global markets like agri-
culture, chemical, construction, energy, food and beverage,
pharmaceuticals and medical, transportation, and utilities.
While the company has changed in what it manufactures,
one thing remains throughout every Tuthill line of business
– we are a company with HEART. Our slogan is “Pump Your
Heart Into It” and everyday our employees do just that as
they represent the Tuthill brand and dare to make better.
Thank you for making Tuthill Vacuum & Blower Systems
part of your company’s process! FIND OUT MORE AT
TUTHILL.COM
A company with heart
right from the start.

i
Manual 1865 Rev B p/n 001865 0000
Table of Contents
Introduction .................................................................................. 1
Safety ............................................................................................ 2
Graphic Conventions Used in this Manual............................................ 2
Safety Instruction Tag ........................................................................... 2
Safety Precautions for Vane Pumps...................................................... 2
Installation .................................................................................... 4
Unpacking............................................................................................. 4
Location ................................................................................................ 4
Power Requirements............................................................................. 4
Vacuum Connections ............................................................................ 5
Filling the Pump With Oil ....................................................................... 5
Operation ...................................................................................... 6
Start-Up................................................................................................. 6
Stopping the Pump ............................................................................... 6
Gas Ballast............................................................................................ 6
Maintenance ................................................................................. 7
Inline (Inlet) Filter................................................................................... 7
Oil Level ................................................................................................ 7
Oil Type and Quantity ........................................................................... 7
Oil Change ............................................................................................ 7
Oil Spin-On Filter................................................................................... 8
Exhaust Filter......................................................................................... 8

ii
Table of Contents
Manual 1865 Rev B p/n 001865 0000
Overhaul Kit and Accessories............................................................... 8
Maintenance Schedule ......................................................................... 8
Specications............................................................................... 9
Troubleshooting......................................................................... 10
Exploded Views and Parts Lists............................................... 13
KVA12 / KVA21 Exploded View Drawing ............................................ 14
KVA12 / KVA21 Parts List.................................................................... 15
KVA25 / KVA40 Exploded View Drawing ............................................ 16
KVA25 / KVA40 Parts List.................................................................... 17
KVA63 / KVA100 Exploded View Drawing .......................................... 18
KVA63 / KVA100 Parts List.................................................................. 19
KVA160 Exploded View Drawing ........................................................ 20
KVA160 Parts List ............................................................................... 21
KVA250 Exploded View Drawing ........................................................ 22
KVA250 Parts List ............................................................................... 23
KVA400 Exploded View Drawing ........................................................ 24
KVA400 Parts List ............................................................................... 25
KVA630 Exploded View Drawing ........................................................ 26
KVA630 Parts List ............................................................................... 27
Warranty – Vacuum Products ................................................... 27
Operating Data Form / Product Registration........................... 28

1
Manual 1865 Rev B p/n 001865 0000
CONGRATULATIONS on your purchase of a new
KINNEY®KVA oil lubricated, rotary vane vacuum
pump from Tuthill Vacuum & Blower Systems.
Please examine the pump for shipping damage,
and if any damage is found, report it immediately to
the carrier. If the pump is to be installed at a later
date, make sure it is stored in a clean, dry location
and rotated regularly. Make sure covers are kept
on all openings. If the pump is stored outdoors, be
sure to protect it from weather and corrosion.
KINNEY KVA vacuum pumps are built to exacting
standards and, if properly installed and maintained,
will provide many years of reliable service. Read
and follow every step of these instructions when
installing and maintaining the pump.
This manual covers KVA model vacuum pumps.
Please identify the model number and serial
number when ordering parts.
WARNING
!
Serious injury can result from operating or
repairing this machine without rst reading the
service manual and taking adequate safety
precautions.
OTE:NRecord the model and serial numbers of
the pump in the OPERATING DATA form
on the inside back cover of this manual.
Use this identication on any replacement
part orders, or if service or application
assistance is required.
INTRODUCTION
01

2
Manual 1865 Rev B p/n 001865 0000
GRAPHIC CONVENTIONS USED IN
THIS MANUAL
The following hazard levels are referenced within
this manual:
DANGER
!
Indicates a hazardous situation that, if not
avoided, will result in death or serious injury.
WARNING
!
Indicates a hazardous situation that, if not
avoided, could result in death or serious
injury.
CAUTION
!
Indicates a hazardous situation that, if not
avoided, could result in minor or moderate
injury.
Indicates a situation that can cause damage
to the engine, personal property, and/or
the environment or cause the equipment to
operate improperly.
OTE:NIndicates a procedure, practice, or
condition that should be followed in
order for the equipment to function in the
manner intended.
SAFETY INSTRUCTION TAG
CAUTION
!
Do not valve or restrict pump discharge
opening.
Use oil mist eliminator when operating pump,
ensure adequate ventilation when discharging
indoors.
Refer to manual safety instructions.
SAFETY PRECAUTIONS FOR VANE
PUMPS
Please read the following safety information before
operating the vacuum pump.
• Do not operate the pump without the guards
properly attached. Disconnect the pump motor
from the electrical supply at the main disconnect
before removing the guards. Replace the belt
guard before reconnecting the power supply to
the pump motor. Operating the pump without the
belt guard properly installed exposes personnel
in the vicinity of the pump to risk from rotating
drive components.
SAFETY
02

3
02
Safety
Manual 1865 Rev B p/n 001865 0000
• Do not operate the pump with oxygen-enriched
gas (greater than 21% by volume) in the suction
line, unless the pump has been prepared with
an inert uid suitable for the application and
equipped with seal and start/stop purge system.
WARNING
!
Pumping oxygen-enriched gases with mineral
oil or other non-inert uids and without
proper purges can cause re or explosion
in the pump, resulting in damage or serious
bodily injury.
• Take precautions to avoid prolonged or
excessive exposure to oil mist or process
materials emanating from the discharge of the
pump.
• Do not allow the pump to discharge into a
closed or inadequately ventilated room. Where
process vapor contains environmentally
unfriendly chemical vapor, pump discharge must
be connected to the properly sized scrubber
system to neutralize the harmful chemicals
prior to the discharge to the atmosphere. Laws
and ordinances may pertain to your local area
regarding discharge of oil mist, oil vapor, or
chemical vapor to atmosphere. Check local laws
and ordinances before operating the pump with
discharge to outside atmosphere.
• Do not restrict the pump discharge in any way or
place valves in the discharge line. The vacuum
pump is a compressor and will generate high
pressures without stalling the motor when
operated at low suction pressures. Excessive
pressure could cause damage or serious bodily
injury.
• Disconnect the pump motor from the electrical
supply at the main disconnect before
disassembling or servicing the pump. Make
sure that the pump is completely reassembled,
the guards are properly installed, and all ll and
drain valves are installed and closed before
reconnecting the power supply. Accidental start-
up or operation of the pump while maintenance
is in progress could cause damage or serious
bodily injury.
• Lift the pump only by the lifting lugs supplied
with the pump. Never lift equipment attached to
the pump by the pump lifting lugs.
• Do not touch hot surfaces on the pump. In
normal operation at low pressures, surface
temperatures will not normally exceed 180°F
(82°C). Prolonged operation at 200 Torr (267
mbar) may cause surface temperatures as high
as 220°F (104°C).

4
Manual 1865 Rev B p/n 001865 0000
UNPACKING
Inspect the box and pump carefully for any signs
of damage incurred in transit. Since all pumps
are ordinarily shipped F.O.B. from our factory or
regional warehouse, such damage is normally the
responsibility of the carrier and should be reported
to them.
The vacuum pump is bolted to the skid. To free the
pump, remove the fasteners.
The inlet and exhaust of the pump are covered
with plastic caps to prevent dirt and other foreign
substances from entering the pump. Leave these
caps in place until you are ready to pipe the pump
to your equipment.
LOCATION
Install the pump in a horizontal position on a level
surface so that the pump is evenly supported on
its rubber feet. Leave 12 – 18 in. (30 – 46 cm) of
access around the pump to allow proper cooling.
Provide adequate ventilation for the fans, radiator,
and motor.
Allow easy access to the oil sight glass for
inspection of the oil level, and allow easy access to
the exhaust port for lter changes. Do not tip over
the pump if it is lled with oil.
POWER REQUIREMENTS
A schematic diagram for the electrical motor
terminal connections is located in the junction box
of the motor or on the motor nameplate.
Connect the motor according to the electrical
codes through a fused switch in order to protect
the motor against electrical or mechanical overload
conditions. Set the overload of the motor starter at
a level equal to the full load motor current listed on
the motor nameplate.
If the pump is supplied with a motor starter, it
is preset at the factory according to customer
specications. Check that these settings are in line
with the voltage at your location. If the voltage is
different, please contact Tuthill Vacuum & Blower
Systems for motor and starter information.
Correct direction of rotation is marked by an arrow
on the motor fan housing and is counterclockwise
when looking at the motor from the motor’s fan
side.
OTE:NAfter electrical connections have been
made but before oil has been added,
check the rotation of the motor. If rotation
is backward, reverse any two leads of the
three at the power connection.
INSTALLATION
03

5
03
Installation
Manual 1865 Rev B p/n 001865 0000
VACUUM CONNECTIONS
Use a pipe size that is at least equal to the size of
the pump inlet connections. Smaller lines result in
a reduced pump capacity and performance.
For pumps operating in parallel on a common main
line, install a manual or automatic operated shut-off
valve or a positive action check valve in the suction
line adjacent to the pump suction ange. Do not
use the built-in anti-suckback valve as a shut-off
valve for the vacuum system.
Remove the plastic protective cap from the inlet
port before connecting the pump to the system.
Should process gas contain dust or other foreign
particles, connect a suitable inline (inlet) lter to
the inlet port. Consult Tuthill Vacuum & Blower
Systems for recommendations.
Design the vacuum piping so that no liquids such
as condensate or liquid carried over from the
process can reach the pump. If this possibility
exists, install a knock-out liquid separator.
Consult Tuthill Vacuum & Blower Systems for
recommendations.
If an exhaust manifold is connected, install a drip
leg and drain near the pump exhaust to prevent
exhaust condensation from entering the exhaust
box. The thread sizes in Table 3-1 are standard on
KVA pumps:
Table 3-1
PUMP MODEL INLET SIZE EXHAUST
SIZE
KVA12 / KVA21 1/2 in. NPT Open Grid
KVA25 / KVA40 1-1/4 in. NPT 1-1/4 in. NPT
KVA63 / KVA100 1-1/4 in. NPT 1-1/4 in. NPT
KVA160 / KVA250 2 in. NPT 2 in. NPT
KVA400 3 in. NPT 3 in. NPT
KVA630 3 in. NPT 3 in. NPT
FILLING THE PUMP WITH OIL
The pump is shipped without oil. After level
installation and correct rotation has been
established, ll the pump with the recommended
motor oil through the oil ll port. The oil level
should be at the 3/4 mark on the oil sight glass.
Use a non-detergent oil. Oil detergent additives
can clog exhaust lters and shorten their
service life. Tuthill Vacuum & Blower Systems
recommends KV-100 oil for normal duty operation
or S500 oil for severe duty operation.
Table 3-2 gives the approximate quantities of oil
required for each model.
Table 3-2
PUMP MODEL OIL CAPACITY
KVA12 / KVA21 0.5 qt (0.5 L)
KVA25 / KVA40 1.5 qt (1.4 L)
KVA63 / KVA100 2.6 / 2.9 qt (2.5 / 2.7 L)
KVA160 / KVA250 7.4 qt (7.0 L)
KVA400 20.0 qt (19.0 L)
KVA630 20.0 qt (19.0 L)
WARNING
!
Do not add or ll oil with pump running or
through the inlet or exhaust ports! Do not
overll.

6
Manual 1865 Rev B p/n 001865 0000
START-UP
Check rotation of the motor as described in Power
Requirements on page 4. Fill the pump with
oil as described in Filling the Pump With Oil on
page 5.
Start the pump with the inlet closed. Run the pump
for a few minutes and then shut it down. Check
the oil level again and make sure the oil level is
between the 3/4 mark and the FULL mark on the
upper oil sight glass.
Add oil, if necessary. Add pump oil only when the
pump is off and circulating oil has sufcient time to
return to the oil sump.
STOPPING THE PUMP
To stop the pump, turn off the power. A built-in anti-
suckback valve will prevent oil in the oil reservoir
from being sucked back into the cylinder after the
pump is shut down. Do not use the anti-suckback
valve as a check valve. Consult Tuthill Vacuum &
Blower Systems for proper check valves.
GAS BALLAST
KVA pumps are equipped with a gas ballast. The
gas ballast valve is located between the inlet port
and the exhaust box. Its main function is to prevent
water vapor from condensing in the pump, which
causes emulsication of the oil that can result in
pump failure.
In applications when the quantity of water vapor
is moderate, Tuthill Vacuum & Blower Systems
recommends running the pump for 10 minutes to
its normal operating temperature prior to going on
process. Also operate the pump off process for
10 minutes prior to shutdown. A slight air bleed
(purge) is recommended during these 10-minute
cycles to prevent the vapor from condensing in the
pump.
OPERATION
04