TapFlo DT Series Manuel de programmation
Instructions for installation, operation and maintenance for active pulsation dampeners.
STOP
Read this instruction manual carefully,
before you install and operate the pump
Active pulsation dampeners
models:
DT 9/20/25
DT 50/70/80
DT 100/120/125
DT 200/220/225
DT 400/420/425
DT 800/820/825
New DT Series.
IOM MANUAL
IOM manual Active pulsation dampeners 2
CONTENTS
0. GENERAL 4
0.1. Introduction 4
0.2. Warning symbols 4
1. INSTALLATION & SAFETY 5
1.1. Receiving inspection 5
1.2. Storage 5
1.3. Installation of the dampener 5
1.4. Operation principal 6
1.5. Health & Safety 6
1.5.1. Protection 7
1.5.2. Explosion hazardous environments – ATEX 7
1.5.3. Air pressure 7
1.5.4. Noise level 7
1.5.5. Temperature hazards 7
2. MAINTENANCE 8
2.1. When dampener is new or re-assembled 8
2.2. Routine inspection 8
2.3. Location of faults 8
2.4. Dismantling of the dampener 8
2.5. Assembling the dampener 10
3. SPARE PARTS 13
3.1. Spare parts drawing – PE, PTFE and aluminium 13
3.2. Spare parts list – PE, PTFE and aluminium 13
3.3. Spare parts drawing – steel and sanitary 14
3.4. Spare parts list – steel and sanitary 14
3.5. Recommended spare parts 15
3.6. How to order parts 15
4. TECHNICAL DATA 16
4.1. Dimensions 16
4.2. Tightening torques 17
4.3. Dampener code 17
5. WARRANTY & REPAIR 18
5.1. Returning parts 18
5.2. Warranty 18
5.3 Warranty form 20
IOM manual Active pulsation dampeners 3
CE CERTIFICATE
Declaration of conformity
Machinery directive 2006/42/EC
AB declares that:
Product name: Active Pulsation Damener
Models: D T…
Is in conformity with the essential health and safety requirements and technical construction
requirements of the EC Machinery directive 2006/42/EC.
Manufacturer:
Address: Filaregatan 4
S-442 34 Kungälv
Sweden
January 1:st
2014
Håkan Ekstrand
Managing director
IOM manual Active pulsation dampeners 4
0.1 Introduction
The active pulsation dampener is the most efcient way to remove pressure variations on the
discharge of the pump. The Tapo pulsation dampener works actively with compressed air and a
diaphragm, automatically setting the correct pressure to minimise the pulsations. The pulsation
dampener is available for all Tapo pump sizes and material versions.
With proper attention to maintenance, Tapo active pulsation dampeners will give efcient and
trouble free operation. This instruction manual will familiarise operators with detailed information
about installing, operating and maintaining the dampener.
0.2 The warning symbols
The following warning symbols are present in this instruction manual. This is what they say.
This symbol stands next to all safety instructions in this instruction manual where danger
to life and limb may occur. Observe these instructions and proceed with utmost cau-
tion in these situations. Inform also other users of all safety instructions. In addition to
the instructions in this instruction manual, the general safety and accident prevention
regulations must be observed.
This signal stands at points in this instruction manual of particular importance for com-
pliance with regulations and directives, for correct work ow and for the prevention of
damage and destruction of the complete dampener or its subassemblies.
0. GENERAL
!
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IOM manual Active pulsation dampeners 5
1. INSTALLATION & SAFETY
1.1 Receiving inspection
Although precaution is taken by us when packing and shipping, we urge you to carefully check
the shipment on receipt. Make sure that all parts and accessories listed on the packing list are
accounted for. Immediately report any damage or shortage to the transport company and to us.
1.2 Storage
If the equipment is to be stored prior to installation, place it in a clean location. Do not remove the
protective covers from the suction, discharge and air connections which have been fastened to
keep pump internals free of debris. Clean the dampener thoroughly before installation.
1.3. Installation of the dampener
The pulsation dampener is installed according to the sketch. It can be connected with a nipple im-
mediately after the pump outlet, or placed independent of the pump with a exible hose between
the pump and the dampener.
Note! Make sure that the dampener does not cause any tension or strain to the pump.
The dampener should have its own support assembly. Any stress casused by the dampener on
the outlet manifold can result in deformation of parts and leakage of the pump.
The air hose is connected to the pump air hose with a T-connection, between the pump and regu-
lator / valves (See sketch). It is important that the air to the dampener must have the same ow
and pressure as to the pump!
In order to ensure the most effective pulsation dampening the dampener should be installed not
further than ve times the diameter of the pipeline from the discharge ange of the pump - L<5* Ø.
!
!
comp.
AIR
outlet
inlet
L
Ø
IOM manual Active pulsation dampeners 6
1. INSTALLATION & SAFETY
1.4 Operation principal
The pulsation dampener’s main function is to remove pressure variations on the discharge of the
pump. The dampener works actively with compressed air and a diaphragm, automatically setting
the correct pressure to minimise the pulsations.
The air pressure supplied to the dampener is the same as the one supplied to the pump. The
medium owing through the dampener affects the diaphragm, which by means of the compressed
air on the air side compensates the uctuations of pressure in the discharge line. The air concen-
trated in the dampeners block works as a spring for the medium owing through the dampener.
Before starting the pump and dampener.
- Make sure the pump is installed according to the installation instruction.
- When installation is new or re-installed, a test run should be conducted to make sure the
dampener operates normally and does not leak.
- When installation is new or re-installed, check the dampener housing nut tightening torque.
After approx. 1 week of operation, the torque should be checked again. This is important
to prevent leakage.
1.5 Health & Safety
The dampener must be installed according to local and national safety rules.
The dampeners are constructed for particular applications. Do not use the dampener on applica-
tions different from that for which it was sold without consulting Tapo AB to ascertain its suitability.
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IOM manual Active pulsation dampeners 7
1.5.1. Protection
In the interest of health and safety it is essential to wear protective clothing and safety goggles
when operating, and/or working in the vicinity of Tapo dampeners.
1.5.2. Explosion hazardous environments – ATEX
Static electricity may occur in the pump under operation, which may cause explosion
and injury. Special conductive pulsation dampeners DTX are available for such applications.
Follow below instructions and local/national rules for safe use.
ATEX (directive 94/9/EC) classication of Tapo DTX dampeners:
ATEX II 2 GD IIB cT4
Equipment group II – all other explosive areas than mines;
Category group 2 – high level of protection (can be used in zone 1);
Atmosphere G– gas; D– dust;
Explosion group IIB – such as ethylene;
Type of protection c– constructional safety;
Temperature class T4 – in the event of a malfunction, the maximum temperature of a surface that
may be exposed to gas T4 = 135 °C.
Earth connection of dampener and other equipment
Connect a suitable earth wire to the stainless steel earth connection that is placed on the inside
of one of the pump housings. Connect the other end of the earth wire to earth and also make sure
that other equipment like hoses/pipes/containers etc. are properly earthed/connected.
1.5.3. Air pressure
The maximum air pressure for Tapo dampeners is 14 bar. Higher air pressure than 14 bar can
damage the dampener and may cause injury to personnel in vicinity of the dampener.
Please make sure that supply air to the dampener must have the same ow and pressure as the
pump that dampener is installed with.
1.5.4. Noise level
At tests, the noise level from a Tapo dampener has not exceeded 70 dB(A).
1.5.5. Temperature hazards
Raised temperature can cause damage to the dampener and/or piping and may also be hazar-
dous for personnel in the vicinity of the dampener/piping. Avoid quick temperature changes and
do not exceed the maximum temperature specied when the dampener was ordered.
1. INSTALLATION & SAFETY
STOP
STOP
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IOM manual Active pulsation dampeners 8
2. MAINTENANCE
STOP
!
!
Fig. 2.4.1.
By means of a screwdriver, remove the circlip [27] and mufer [25].
Fig. 2.4.2.
Remove the nut covers [579] from the dampener housing and block.
2.1. When dampener is new or re-assembled
If the dampener is new or re-assembled after maintenance it is important to re-tighten the
dampener housing screws (pos. 37) after a few days of operation. Make sure to use the right
torque, see chapter 4.2.
2.2. Routine inspection
Frequent observation of the dampener operation is recommended to detect problems.Achange in
sound of the running dampener can be an indication of wear. Leakage of liquid from the dampener
and changes in performance may also be detected. Routine inspections should be conducted
frequently.
2.3. Location of faults
PROBLEM POSSIBLE FAULT
The dampener does not work The air connection is blocked
The diaphragm is damaged
The mufer is blocked
There is dirt in the dampener chamber
Liquid leaks from the dampener Screws on the housing are not properly tightened
Liquidcomesoutofthemufer The diaphragm is damaged
2.4. Dismantling the dampener
The numbers put in brackets, refer to the part numbers in the spare parts drawing and spare parts
list in chapter 3.
Before the dismantling procedure
Be sure to drain all liquid from the dampener. Cleanse or neutralize the dampener thoroughly.
Disconnect the air connection and then the suction and discharge connections.
IOM manual Active pulsation dampeners 9
2. MAINTENANCE
Fig. 2.4.3.
Using two spanners unscrew the nuts [37] cross-side and take them
out alongside with the washers [38].
Fig. 2.4.4.
Take out the dampener block [12].
Fig. 2.4.5.
Take the pin screws [14] out of the dampener housing [11].
Fig. 2.4.6.
Unscrew the diaphragm [15] by hand (clockwise).
Fig. 2.4.7.
Using an allen key, unscrew the shaft ending [1652] from the di-
aphragm.
Fig. 2.4.8.
Push out the shaft [1651] from the dampener housing.
IOM manual Active pulsation dampeners 10
2. MAINTENANCE
!
Fig. 2.4.9.
Check the inner seals [36] and O-rings [47]. If necessary, take them
out using a screwdriver.
Note! If these parts are removed, they must be replaced with new
ones. If the dampener sealing is worn, also check the shaft for wear
and if necessary replace it.
Fig. 2.5.1.
Using a screwdriver, insert the O-rings [47] into the dampener block
[12].
Fig. 2.5.2.
Using a pair of pliers, insert the seals [36] into the dampener block
[12]. To make the procedure easier bend the seals into a kidney
shape and then t them with a screwdriver.
Fig. 2.5.3.
Push the shaft [1651] into the dampener block [12].
Check all components and clean or repair if necessary. Clean the diaphragm from grease. If the diaphragm
does not need to be replaced, apply grease.
2.5. Assembling the dampener
The numbers put in brackets, refer to the part numbers in the spare parts drawing and spare parts
list in chapter 3.
It is of utmost importance to follow the assembly procedure. If one fails to comply with this proce-
dure, injury or life hazard may occur when operating the dampener.
Assembly procedure
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