VAN DER ENDE Envalve VK Series User manual

Series VK,VKF and PVK
Versi on 2. 1
20
th
of October 201 1

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Installation manual Envalve series VK, VKF and PVK
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Preface
This installation manual is a manual for the installer or technician who is installing the Envalve. It is not a
manual for the (end) user of th e Envalve.
If not entirely installed and connected, the Envalve has no real function and is therefore cla ssified as a
machine which cannot function independently (or unfinished machine , later on this is called just
machine ).
This installation manual contains only prescriptions concerning the safe installation, correct connecting
and safe working with the Envalve. It is not a manual for the entire installation in which the Envalve is
installed. The installer should take care of that manual.
Every chap ter has a number and chapters are divided into paragraphs where needed . The list of contents
on page 2 gives an overview of the chapters and paragraphs with a reference to the page numbe rs .
When a number or letter is between brackets this refers to the n umbers or letters of parts in
picture 1.

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Installation manual Envalve series VK, VKF and PVK
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List of contents
Preface .................................................................................................................2
List of contents ........................................................................................................3
1. Identification .......................................................................................................4
1.1 General information ...........................................................................................4
1.1.1 Description of the machine ................................................................................4
1.1.2. Specifications ..............................................................................................5
1.2 Schematic picture of the machine ............................................................................6
1.3 Operation and manual control ...............................................................................7
1.4 Users ............................................................................................................8
1.5 Application .....................................................................................................8
1.6 Media ...........................................................................................................8
1.7 Use environment ..............................................................................................8
1.8 Warranty .......................................................................................................9
1.9 CE sign ..........................................................................................................9
1.10 Rest risks ......................................................................................................9
2. Description .......................................................................................................10
2.1 Working principle ...........................................................................................10
2.2 In general .....................................................................................................10
2.3 Transport and storage ......................................................................................10
3. Safety instructions ...............................................................................................11
4. Installation .......................................................................................................12
4.1 Mechanical ...................................................................................................12
4.2 Electric ........................................................................................................14
4.3 Pneumatic ....................................................................................................14
5. Commissioning ...................................................................................................15
6. Maintenance ......................................................................................................15
7. Errors .............................................................................................................16
8. Declaration of conformity .......................................................................................17
Annexes .............................................................................................................18
Electric schematics ..............................................................................................19
Declaration of conformity of components .....................................................................22

Van der Ende Pomp en B.V.
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Installation manual Envalve series VK, VKF and PVK
Page 4 of 23
1. Identificati on
In this chapter some general information about the machine is listed. The purpose of this chapter is to
state the boundaries of the machine, the global functioning and possible applications of the machine.
1.1 General information
1.1.1 Description of the machine
The Envalve is available in di fferent versions; the VK with max. NW63 , the VKF from NW75 up to NW200
and the PVK from NW20 up to NW200. All Envalve s are electrical or pneumatic powered butterfly valves.
An Envalve consists of five main parts:
1. Motor plate ; metal base plate (d) single or double version .
2. Bu tterfly valve ; 1 o r 2 butterfly valves with EPDM o r FPM seal (f, g and possible h) .
a. Later on,this is referred to as valve or actual valve .
3. Drive; elec tromotor or pneumat i c actuator (a) .
4. Connector ; between th e motor and t he butterfly valve and in case of a double Envalve version also
between both butterfly valves (e and n) .
5. Connection between the piping and the valve(s) (i and j) by means of a collar or nut .
The purpose and function of the Envalve is the regulation or stopping of a flow of fluid media through a
pipe. The Envalve can be operated remotely.
The valve has an outgoing axle with which the valve can be rotate d. By means of fixing a remote operated
drive on this axle, the valve can be operated remotely.
In case of the double Envalve version ( two interconnected valves with one drive), the valve with the drive
on top is in the position indicated with the indicator (b) while the other valve is exactly 90 degrees rotated
from this position. This is default, other configurations are possible.
The Envalve s function is the regulation of a flow of fluid media through a pipe or in case of the double
Envalve version the mixing of two flows of fluid media with a certain proportion to each other.
It is prohibited to use the Envalve otherwise than fully connected and installed in a suitable piping system
with a maximum working pressure of 6 bar. The difference between the pressure before and after the
Envalve must be below 6 bar.
The Envalve is therefore classified as an unfinished machine.

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Installation manual Envalve series VK, VKF and PVK
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1.1.2. Spec ification s
Type
VK
Power
3.5
W
Voltage
2
4 of 230 V
ac
Capacity
10
-
100
m
3
/
hou
r/
valve
Pressure
max.
6
bar
NW
20
-
6
3
Drive
Elec
tromotor
Centra Honeywell
VMM o
r
VMK
Tabl e 1. S pecification s VK series .
Type
VKF
Power
9
-
26
W
Voltage
24 of 230 V
ac
Capacit
y
280
-
2000
m
3
/
hour
/
valve
Pressure
max.
6
bar
NW
7
5
-
200
Drive
Elec
tromotor
Hora
M135, M150 o
r
M180
Table 2. S pecificati on s VKF series .
Type
PVK
Power
5
-
9
W
Voltage
24
V
dc
/ V
ac
o
r
230
V
ac
Capacity
56
-
2000
m
3
/
hou
r/
valve
Pressure
max.
6
bar
NW
20
-
63 a
n
d
7
5
-
200
(different connection to
piping, see paragraph 2.2)
Drive
Pneumatic actuator OMAL serie
s
DA
Dual dr ive in combination with electrical
monostable valve type 5/2
Operating pressure
6
bar
Table 3. S pecificati on s PVK serie s.

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Installation manual Envalve series VK, VKF and PVK
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1.2 Schemati c picture of the machine
In this picture, the parts and components are numbered.
Picture 1. S chemat ic pictur e of an Envalve .
Note; the Envalve in the picture is a VKF, although other versions are not entirely the same, the main
components and the functions of the components is the same.

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Installation manual Envalve series VK, VKF and PVK
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Name
a
Drive
b
Position indicator
c
man
ual
-
auto
control button
d
Bas
e plate
e
Coupling
f
Housing
g
Paddle
h
Secondary b
utterfly valve
i
Collar
j
Flange
k
Primary b
utterfly valve
(direct driven)
l
Seal
m
Connector shaft
n
Coupling rod
Table 4. Names of the main components .
1.3 Operation and manual control
It is possible to operate the Envalve remotely, but it is also possible to operate the Envalve manually , that
is to say, it is possible to manually open or close ( turn ) the Envalve. The procedure for this differences
between the different versions;
Imp ortant; when the valve is switched from manual to automatic operation, the valve should be
half open (exactly between open and closed)!
Make sure the automatic operating of the Envalve is disabled before any manual operating is tried!
VK : press the blac k knob on the upper side of the drive, as long as this knob is pressed , the Envalve
can be controlled manually using the connector shaft (m).
VKF:turn the red knob on the side (c) to the man (manual) position, the Envalve can now be
controlled manually using the connector shaft (m). To reset the valve to automatic (remote)
operation,turn the red knob (c) to the auto position, then push against the connector shaft (m) until
a click is heard.
PVK: the re are two options for the PVK. The first and most desirable option is to use a flat screwdriver
to turn the control screw (nr. 6 in picture 8) a quarter,this is only possible ifthe pneumatics are
connected. The other option is to u se a spanner to turn the axle on the upper side of the actuator
(drive), this is only possible if the pneumatics are disconnected (no air pressure on the control valve).
For this last option, also the pneumatic pressure lines between the control valve and the actuator
should be disconnected. Make sure the air pressure is not r e- connected when these lines are
disconnected.
The position indicator (b) indicates the position of the paddle.
Every Envalve is equipped with two limit switches, these switches stop the valve when it s in the most
open or most closed position. There i s a possibility to use these switches or to incorporate a
potentiometer in order to be able to (electrically) read the position of the valve. The limit switches are
sealed for warranty purposes.
For the remote operation paragraph 4 .2 and the annexes can be consulted, in which an electric scheme of
the Envalve can be found. Further connection (to a control panel or something alike) is not included in this
installation manual.

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Installation manual Envalve series VK, VKF and PVK
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1. 4 Us ers
In general,there are no direct users of the Envalve, because it is operated remotely by a control panel or
other (semi)automatic controller. Allowed users are at least 18 years and employed at the company at
which the Envalve is installed, and who are designated to be competent and able to operate the Envalve.
Not allow ed users are users who don t comply with above description. Not allowed users are all users who
cause danger and/or unsafe situations for themselves and/or others while using the Envalve.
1.5 Application
The Enval v e is meant for the regulation or stopping of a flow of fluid media through a pipe or (in case of
the double version) the mixing of two flows with a certain proportion to each other. It is forbidden to use
the Envalve while it is not fully installed and connected in accordance with the installation prescriptions in
a suitable piping system.
It is forbidden to use the Envalve for purposes other than that as described above, or for purposes where
failing of the Envalve can cause serious danger for persons .
1. 6 Media
The Envalve is not chemically res istant for all chemical s , ask the producer of the Envalve for advise. If the
Envalve is used for wrong chemicals, leaking will occur and warranty will expire.
It is possible to alter the seals in the Envalve in order to make it (more) resistant for other chemicals, ask
the producer of the Envalve for advice.
1. 7 Use environment
The Envalve is meant for use as a controlled stop or regulator of a flow of fluid media. The Envalve may
only be used if it is fully installed and connected in accordance with the installation prescriptions.
For use in a moist and/or cold environment, the Envalve can be equipped with a small heating element for
protection (see picture below ). Ask the producer for advice!
Picture 2. Heating element (optiona l) .
The Envalve and pa rticularly the drive may not be submerged.

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Installation manual Envalve series VK, VKF and PVK
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Install the Envalve only if there is enough free space around it, a person must be able to operate the button
man auto (c) safely. It must be impossible for a person to get stuck between the base plate and
co nnector shaft or other objects.
The Envalve can be installed in virtually every position, except up side down (drive under the valve), see
also paragraph 4.1.
The Envalve can not be used in an explosive environment.
1.8 Warranty
The warranty is 6 months from commissioning, with a maximum term of 2 years after production.
Commissioning is the installation of an Envalve in an installation.
Parts must be brought to the producer when warranty is claimed.
Warranty expires with one or more of the following te rms:
unprofessional use and/or installation;
repeatedly ignoring advice from producer and/or supplier;
reparation, maintenance or use by incompetent or unauthorised persons;
use of incorrect electrical or fluid connections ;
use of the machine in an unsuite d environment;
intended damaging or modification of the machine.
All these and further warranty terms are in conformation with the METAALUNIEVOORWAARDEN ( edition
January 2008) .
1.9 CE sign
The CE sign concerns the conformity of the Envalve with the machin e, low voltage, EMC and PED directive.
Because it is an unfinished machine, the Envalve cannot comply with all the essential safety precautions, a
list of these can be supplied by the producer.
The CE sign is located on the sticker on the base plate.
Ac cording to the low voltage directive, the Envalve is classified as a Class I machine.
1.10 Rest risk s
For practical and economic reasons it is impossible to fully cover all the risks for 100%, besides, the risk of
a machine is tightly correlated with the f unctionality of the installation as a whole. These so called rest
risks are listed in the table below. It is important that the user is aware that, even while we have taken all
possible safety precautions, the use of the Envalve involves certain risks. Fol low the prescriptions in this
manual in order to minimize these risks.
R
isk
-
Nr.
Rest risk description
Ri
sk
-
factor
1
Category
1.
Moving part approaches static object.
When the connector shaft moves to left or to right it
approaches the base plate.
3
A1.
1
2.
When the Envalve is used while it is not fully installed and
connected, there is a danger of fingers getting stuck.
3
A1.1
3.
Risk on fire, if the electrics are not professionally connected,
a risk on short circuit and fire arises.
4
A1.3
Table 5. Li st of rest ris ks.
1
The aim is to reduce every risk to a level below 4, but this isn t always possible due to the functionality of
the machine.

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Installation manual Envalve series VK, VKF and PVK
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2. Description
In this chapter the machine is described, it is the background information needed to work safely with the
machine.
2.1 Wo rking princip le
The Envalve regulates the flow by means of turning a paddle in a housing. By t urning the paddle, the
effective diameter of the pipe changes.
2.2 In general
The Envalve must be installed in a suitable piping system, only after installation is completely finished the
electric and/or pneumatic connections can be made.
With an Envalve , a flow of fluid media can be precisely controlled or stopped. Application examples are
the ( continuous ) mixing of two flows of fluid (VK an VKF series, double version) and the remote shutting
of pipes (all series).
T he remote operation of the Envalve is possible b ecause the drive is powered by electrics or pneumatic s .
Normally t here are two limit switches installed , but more position switches or a potentiometer can be
installed to read (or read more precisely) the position of the Envalve. The position indicator (b) indicates
the position of the paddle. In case of a double version of the Envalve, the position indicator indicates the
position of the paddle of the valve directly under the drive.
The turning time of the valve (the time in which the valv e goes from fully closed to fully open) varies per
series: the VK and VKF take about 70 seconds (10 seconds is also available, ask the producer for
information), for the PVK this time depends on operating pressure and the pneumatic connections.
Optional is a flow regulator on the PVK, with this the turning time can be tuned.
The VKF and VK series are bista ble, which means that when the power supply is c ut off, the valve stays in
that position. The PVK series is monostable, the valve returns to its default position when the power
supply is interrupted (only if there is sufficient air pressure). Other configurations are available.
The connection between the Envalve and the piping for NW63 and smaller consists of a collar and a pvc
nut . At NW 75 and larger this connection consists of a collar, two flanges and some nuts and bolts.
For NW63 and smaller the Envalve has a seal made of EPDM (default) or FPM (optional) between the
paddle and the housing . And 2 O - ring seals between the valve and the collars.
From NW75 and larg er the Envalve has only one seal, which sits between the housing and paddle and
between the valve and the collars.
2.3 Transport and storage
Transport and storage do no t require special packaging but can not be stacked without special crates or
other precautions. The Envalve and the drive in particular is only moderately resistant to water and
moist, so the Envalve must be protected against both (see also paragraph 1.7) .

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Installation manual Envalve series VK, VKF and PVK
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3. Safety instructions
Read and understand this installation manual an d take all the prescribed precautions before installing or
connecting the Envalve!
The Envalve may only be used for the applications the Envalve was designed for.
The Envalve was designed to function as a stop o r regulat or in a system or process working with flows of
fluid media. These media may only contain those chemicals suitable for the Envalve and its components
which come into contact with them. Further information about application and use can be found in
paragraph 1.5 and 1.7.
It is forbidden to use the Envalve in a system with solid substances or gasses.
Only connect the Envalve to pressurised air and/or electricity if its fully installed in a suitable system.
Before the Envalve can be taken out of the system, the pressurised air and/or electric ity must be
disconnected.
Maximum pressure for the Envalve is 6 bar.
Always disconnect the pressurised air and/or electricity before maintenance or reparation. Disconnect the
electricity by using the main switch from the controlling organ (control panel or something alike), this
switch must be locked during the work on the Envalve.
Always fully connect the pressurised air and electricity after the maintenance or repairs and test the
Envalve.
Work on the Envalve or the connection of the electrics or pneu matics must be done by a competent and
professional person.
230 V Connections must be 4 core cables (open, close, ground and earth) of sufficient diameter and
quality, conform regulations.
Always conn ect the ground cable to the terminal marked with the g round sign.
Make sure the po wer cable is connected to a group fused at maximum 16 A with a ground fault circuit
interrupter of 30 mA.

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Installation manual Envalve series VK, VKF and PVK
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4. Installation
4.1 Mechanical
For the correct installation of the Envalve, first fit all the piping without glue. W hen everything is correct
in size and properly aligned, loosen the bolts or the nut and take the actual valve from between the collars.
Be careful not to damage the seal while doing this. Put the valve aside and remove the collars from the
piping.
Glue t he collars to the piping. Excess glue on the inside of the piping should be removed, this glue can get
between the seal and the paddle and cause serious damage or leaking.
Make sure you put the flanges or the nut over the piping behind the collars before the collars are
glued, the flanges or nut cannot be added later!
From NW75 and larg er there is only one seal, serving as seal between the paddle and housing and as seal
between the collars and actual valve. NW63 and smaller ha ve two separate O - rings as se al between collar
and valve and another seal between the housing and the paddle. It is important that for all the Envalve s
plain smooth collars are used, not the ones with a groove (for an O - ring), otherwise they will leak. The use
of additional seals is unnecessary and we strongly advise not to .
Picture 4. Seal Envalve NW 63 and smaller (left) and NW75 and larger (right) .
When the collars are glued and excess glue is removed , the actual valve can be put back between the
collars, again, be careful not to damage the seal. The valve can be installed in every position, except up side
down (drive under valve).
Picture 5. Installation positions Envalve .

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Installation manual Envalve series VK, VKF and PVK
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When the valve is positioned correctly between the collars the flanges can be shoved ove r the collars and
secured with the metal bolts and nuts (NW 75 and larg er ) or the nut can be tightened (NW63 and smaller ).
After installation the connection must be checked; try to operate the valves manually by closing and
opening them by hand. This must be able without scraping noise and with only moderate force. See
paragraph 1.3 for instructions on manual operating.
Do not tighten the bolts and nuts t o o much, this will deform the seal and possibly block the paddle!

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Installation manual Envalve series VK, VKF and PVK
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4 .2 Electri c
The valves must be elec trically connected by professional and competent persons, look at the pictures in
the annexes for help.
VKseries
Remove the three screws from the lid of the drive;
remove the lid of the drive;
put the power cable trough the cable gland;
connect the eart h cable to the terminal marked with the earth sign (only the 230 V version);
connect the ground cable to terminal 1;
connect the two phases to terminal 2 and 3;
tighten the cable gland ;
check the functioning of the Envalve;
switch the two phases if the dri ve turns the wrong way round;
close the lid of the drive en secure with the three screws.
VKF serie s
Remove the four screws from the lid of the drive;
remove the lid of the drive;
put the power cable trough the cable gland;
connect the earth cable to the terminal marked with the earth sign (only the 230 V version);
connect the ground cable to terminal N 1;
connect the two phases to terminal 2 and 3;
tighten the cable gland;
check the functioning of the Envalve
switch the two phases if the drive turns the w rong way round;
close the lid of the drive en secure with the four screws.
PVK series
Remove the screw on top of the cap of the (electric) control valve (the black part);
r emove the cap of the coil of the control valve;
put the power cable trough the cabl e gland;
connect the earth cable to the terminal marked with the earth sign (only the 230 V version);
connect the wires to terminal 1 and 2;
tighten the cable gland;
place the seal between the coil and the cap;
put the cap back on the coil and tighten the screw;
check the functioning of the Envalve.
4.3 Pneumatic
PVK series
See picture 8 in the annexes;
connect the air supply to connection 3;
make sure the connection is correct.

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Installation manual Envalve series VK, VKF and PVK
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5 . Commissioning
Check whether the valve is installed correctly and the flan ges or nut are secured. Check before filling the
system with fluid again the functioning (manual and automatic).
When the Envalve is set from manual to automatic (remote) operation, push against the connector shaft
until a click is heard.
It is import ant that the valve is in the neutral position (in the middle between open and closed) before
going from manual to automatic operation and/ or before commissioning. This prevents the valve turning
beyond its limit switches and getting damaged. See also parag raph 1.3.
6. Maintenance
The Envalve is designed as maintenance free, when used in a suitable environment for intended
applications. Periodic inspection and cleaning are not essential but desirable.
Clean the Envalve with a dry cloth, do not use water o n the electrical part. Do not use aggressive cleaning
chemicals.

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Installation manual Envalve series VK, VKF and PVK
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7. Errors
Problem
Cause
Solution
1.
Valve does
n
o
t turn
Control button
man
auto
is set to manual
No power supply present.
Blown fuse
Faulty connected drive
Short circuit due t o moist
Burned drive
Put the valve in the neutral position! Set the
control button to auto and push again st the
connector shaft until a click is heard.
Find the problem and fix the power supply.
Find the cause and replace the fuse .
Chec k the connections (schematic is in the
annexes) .
Find the cause, try to dry the drive, replace
the seal of the drive when needed and
consider a heating element (see paragraph
1.7) .
Find the cause and replace the drive(motor),
check the supply voltage and func tioning of
the valves (especially check for obstructions
of the paddle).
2.
Drive turns
instable /restless
( constant opening
and closing)
Incorrect connected capacitor or loose
contact
To much v oltage drop due to long cables or
insufficient diameter
Fluctuating power supply
Drive is told to open ánd close at the same
time
Contact the producer.
Check the supply voltage (at the drive),
calculate voltage drop, replace power cable
when needed.
Check the supply voltage.
Change the control program.
3.
Drive fails
regular ly
L
o
os
e contact in power supply
Bad or defect limit switches
First, make sure the power is switched off!
Check and tighten all contacts.
Replace limit switches
4.
Drive doesn t turn
(entirely) to the end
position
Incorrect set
limit switches
Defect sprocket in drive
Drive capacitor defect
Too much system pressure or to much
pressure difference over the valve
Obstruction of the paddle
Let the producer reset the limit switches, do
not attempt to do this yourself, warranty will
expire!
Replace the drive (this is often an error due
to obstruction of the paddle).
Contact the producer.
Check and reset the system pressure.
Disassemble the valve (loosen the
flanges/nut and remove valve from system)
and remove obstruction.
Table 6. Errors and solutions .

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Installation manual Envalve series VK, VKF and PVK
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8. Declaration of conformity
EG - DECLARATION OF CONFORMITY
(according to Annex II B of the Machinery Directive 2006/42/EG, for machinery
which cannot function independently or machinery parts)
We,
Herewith decla re, on our own responsibility, that the product:
Which this declaration refers to, to be incorporated into machinery or assembled with other machinery to
constitute machinery covered by the Machinery Directive, is (where appropriate) in conformity w ith the
following standard(s) or other specifications:
The product this declaration refers to must not be put into service until the machinery into which it is to
be incorporated has been declared in conformity with the provisions of the relevant E uropean Directives.
Van der Ende Pompen B.V
Maasambacht 4
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Envalve
Series VK, VKF and PVK
Machinery Directive 2006/42/EG
Low Voltage Directive 2006/95/EG
EMC Directive 2004/108/EG
PED Directive 97/23/EG
Nederland
Maasdijk
5 November 2009
P.J. van der Ende

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Installation manual Envalve series VK, VKF and PVK
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Annexes
Electric schema tics
Declaration of conformity of components

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Installation manual Envalve series VK, VKF and PVK
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Elec tric schema tic s
VK serie s
Picture 6 , electric schem e VK s eries.
Terminal 1 is the ground cable, when terminal 1 and 2 are connected to a power source, the valve will turn
clockwise, when terminal 1 and 3 are connected to a power source, the valve will anticlockwise.
The earth cable must be connected to the terminal on the housing, marked with the earth sign.

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Nederland
Installation manual Envalve series VK, VKF and PVK
Page 20 of 23
VKF serie s
Picture 7 , el ectric schem e VKF serie s.
Terminal N1 is the ground cable, the control current runs through terminal 2 and/or 3. The earth cable
must be connected to the terminal marked with the earth sign.