SPX APV DELTA DET3 User manual

Read and understand this manual prior to
operating or servicing this product.
Operating Manual
DELTA DET3
Double Seat - Tank Outlet Valve

1. General Terms 2
2. Safety Instructions 2
3. Mode of Operation 3 - 4
4. Auxiliary Equipment 4
5. Cleaning 5 - 6
6. Installation 7
6.1 Welding Instructions 7
7. Dimensions / Weights 8
8. Technical Data 9
9. Materials 10
10. Maintenance 10
11. Service Instructions 11 - 13
12. Service Instructions for the
Installation of Seat Seals 14
13. Detection of Seal Damage 15
14. Spare Parts Lists
DET 3 - DN - RN - 01.053.74.1
DET 3 - inch - RN - 01.053.74.2
1
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
Contents : Page :
UK

This operating manual should be read carefully by the competent
operating and maintenance personnel.
We point out that we will not accept any liability for damage
or malfunctions resulting from the non-compliance with this
operating manual.
Descriptions and data given herein are subject to technical changes.
2. Safety Instructions
DANGER!
- The tank as well as the line and cleaning system must be
depressurized and discharged before any maintenance of the valve.
- Observe service instructions to ensure safe maintenance
of the valve.
- Connections which are not used are to be sealed by a plug.
- A safe discharge of the cleaning liquids must be ensured.
- The spring actuator is under spring load, do not open it.
1. General Terms
2
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
UK

Due to its construction and mode of operation as well as to the use
of high quality stainless steel and adequate seal materials, the
double seat tank outlet valve DELTA DET3 is suited for applications
in the food and beverage industries as well as in the chemical and
pharmaceutical industries.
- The valve opens from the top to the bottom in low
leakage operation (unpressurized drain of fluid residues via the
annular gaps in the seat area).
- Separation of tank and pipeline by two independent valve slides
with intervening cleanable leakage chamber.
- Cleaning of the leakage chamber via cleaning connection B1.
- Any leakages at the seat seals are discharged at Cin
depressurized state.
- As valve position indicator, proximity switches can be installed.
D1 = valve position "closed"
D2 = valve position "open"
- Operation by pneumatic actuator with air connection at A.
Reset by spring force into the safety limit position "closed".
- Maintenance-free actuator.
Valve in "closed" position
The lower and upper valve shafts are closed by spring force and
safely separate the different fluids Aand B.The leakage chamber L
which is situated between the two valve seats, provides for a free
and absolutely depressurized discharge to the bottom.The lower
valve shaft is balanced and, thus, safe against pressure hammers.
3. Mode of Operation
3
A
L
D 1
A
D 2
B 1
CCIP
free
discharge
shaft
bearing
leakage
indication
actuator
drain pipe
housing
tank bottom flange
B
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
UK

Valve in "open" position.
During the opening process the leakage chamber Lis closed
against the product chamber and pipeline B and tank Aare
connected. In open state the valve shafts are also balanced and,
thus, safe against pressure hammers.
4. Auxiliary Equipment
- Valve position indication
Switches to signal the limit position of the valve shafts can be
installed at the drain pipe.
We recommend our APV standard types:
operating distance: 5 mm / diameter: 11 mm.
If the user decides to apply valve position indicators other than
APV type, we cannot take over the liability for any malfunctions
resulting therefrom.
The tank bottom flange for the DET3 valve does not form
part of the scope of supply.
The tank bottom flange can be ordered under the following
reference number:
3. Mode of Operation
4
B
A
L
C
M8 / M10
DN / inch C
40 - 65 / 1,5” - 3” 182
80, 100 / 4” 223
DN / inch ref.-No.
40 - 65 / 1,5” - 3” 31B 15 - 01 - 566/42
80, 100 / 4” 31B 15 - 01 - 641/42
tank bottom welding flange
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
UK

5
5. Cleaning
With the cleaning of the DELTA DET3 valve, it is necessary to
distinguish between three areas:
- The flow area
The lower valve passage is cleaned by the flowing cleaning liquid
during the cleaning of the connected pipelines.
- The leakage chamber
The cleaning of the leakage chamber is done by CIP spraying.
The restraint flow of the cleaning liquid provides for perfect
cleaning of the whole leakage chamber.
Under normal conditions 15 valves DN 40/1,5" - 100/4" can be
cleaned via one spray distribution line DN 25.
Recommendation of cleaning intervals under normal
operating conditions and with common CIP liquids.
- Depending on the pressure ratio, cleaning temperatures and
degree of soiling, times must be adjusted to suit.
- Flushing quantities per CIP spraying cycle : about 2 ltr. / 10s
- Cleaning pressure at CIP cleaning connection : min. 2 bar
max. 5 bar.
upper
shaft
leakage chamber view X
lower
shaft
Cleaning step CIP - spraying
pre-flushing 3 x 10 sec.
caustic flushing 80 °C 3 x 10 sec.
intermediate flushing 2 x 10 sec.
acid flushing 3 x 10 sec.
subsequent flushing 2 x 10 sec.
view X
CIP
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
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6
5. Cleaning
- The shaft surfaces outside the flow passages
The DET3 valve provides for the areas of the lower shaft stem
to be flushed.
Shaft flushing is recommended with sensitive products to improve
product safety and service life of seals.
To flush and sterlize the shaft surfaces, the following cleaning
liquids are suitable:
- hot water
(slightly sour to avoid lime residues): max. 85 OC
- common CIP liquids: max. 80 OC
- supply pressure at CIP cleaning connection: min. 2 bar
max. 5 bar
cleaning quantity per CIP cycle: about 1,2 ltr. / 10 s
cleaning period: 30 s
interval: 1 x /day
(e.g. with milk)
depending on product and operating frequency: 1 x / week
(e.g. with beer)
- saturated steam in common sterilization times: max. 130 OC
Free discharge of the cleaning liquids and of steam must be
ensured. Shaft flushing may only be carried out if product is
not present in that part of the housing.
!
shaft bearing leakage indicator
CIP out
flange
valve housing
lower
valve shaft
CIP in
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
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7
6. Installation
- The valve must be installed in vertical position. Fluids are, therefore,
freely drainable from the valve housing and the leakage chamber.
- Valve housings cannot be welded direct into the pipeline.
At the side ports of the valve housing separate connections
(flanges or unions) must be provided.
-Attention: Observe welding instructions.
6.1 Welding Instructions
DET3
- Tank bottom flange:
Separate the tank bottom flange from the valve housing.
Observe the hole position (position of housing ports)
during welding.
- Valve housing:
Remove the housing seal from the valve housing.
Before welding of the valve housing in the pipeline, the complete
valve insert must be dismantled from the housing.
Careful handling to avoid damage to the parts is necessary.
Separate connections (flanges, etc.) must be considered for the
continuing pipe system.
- Welding should only be carried out by certified welders (EN 287-1).
(Seam quality EN 25817 "B").
- The welding of the valve housings must be undertaken in such a
way that the valve body is not deformed.
- The preparation of the weld seam up to 3 mm thickness must be
carried out in butt manner as a square butt joint without air.
(Consider shrinkage!)
- TIG orbital welding is best.
- After welding of the valve housing or of the mating flanges and
after work at the pipelines and before valve operation,
the corresponding parts of the installation or pipelines must be
cleaned from welding residues and soiling to avoid damage to the
valves and seals. If these cleaning instructions are not observed,
welding residues and dirt particles can settle in the valve and
cause damage.
- Any damage resulting from the nonobservance of these welding
instructions is not subject to our guarantee.
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
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7. Dimensions / Weights
E
F F
C
inst. dimensions weights
in mm in kg
DN A B C Di EF L X
40 379 44 105 38 160 100 423 100 17
50 385 50 105 50 160 100 435 100 18
65 393 58 105 66 160 100 451 100 19
80 439,5 67,5 124 81 230 120 507 150 38
100 449 77 124 100 230 120 526 150 39
inch
1,5” 377,5 45,5 105 34,9 160 100 423 100 17
2” 383,9 51,1 105 47,6 160 100 435 100 18
2,5” 390,0 55,0 105 60,3 160 100 445 100 19
3” 395,9 61,1 105 72,9 160 100 457 100 20
4” 447,8 78,2 124 97,6 230 120 526 150 39
dimensions in mm
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
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9
8. Technical Data
max. tank pressure : 5 bar
max. line pressure : 10 bar
max. operating temperature : 135 OC EPDM, HNBR
*FPM
short-term load : 140 OC EPDM, HNBR,
*FPM
*no steam
tightening torque of safety nut
at upper valve shaft : 40 Nm
leakage gap between the
upper and lower valve shaft : about 4 mm
(check after safety nut is screwed in)
cleaning connection (for hose) : 8 x 1 mm
air connection (for hose) : 6 x 1 mm
max. pneumatic air pressure : 10 bar
min. pneumatic air pressure : 6 bar
(Use dry and clean air only.)
upper
valve shaft
lower
valve shaft
leakage gap
about 4 mm
DN filling emptying lower upper 1m 10m
shaft shaft
40 46 36 40 3 4 5
50 95 41 45 3,4 4 5
65 148 41 45 3,4 4 5
80
100
inch
1,5” 40 36 40 3 4 5
2” 73 41 45 3,4 4 5
2,5” 122 41 45 3,4 4 5
3” 160 41 45 3,4 4 5
4”
closing times
in sec.
hose length
stroke
in mm
kvs - values in m3 / h air
consumption
actuator in
NL / stroke
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
UK

10
9. Materials
product-wetted parts : 1.4571, 1.4404
actuator : 1.4301
seals
standard : EPDM/PTFE
option : HNBR/PTFE
FPM/PTFE
cleaning connection : PP
10. Maintenance
- The maintenance intervals are different depending on the
application and should be determined by the user carrying
out temporary checks.
- For the dismantling of the valve, compressed air is not required.
- Required tools:
- 1 x wrench SW13
- 1 x wrench SW14
- 1 x wrench SW17
- 1 x wrench SW19
- Change of seals according to service instructions.
Use seal kits according to spare parts list.
- Assembly of the valve according to service instructions.
-Provide all seals with a thin layer of grease before
their installation.
Recommendation:
APV food grade grease for EPDM, HNBR and FPM
(0,75 kg /can - ref.-No. 000 70-01-019/93)
(60 g /tube - ref.-No. 000 70-01-018/93)
Use only those greases being suited for the respective
seal material.
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
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11
11. Service Instructions
The item numbers refer to the spare parts drawings
DN: RN 01.053.74.1 / Inch: 01.053.74.2
11.1 Dismantling from the line system
a. Shut off tank and line pressure in the product and cleaning line
and discharge lines.
b. Remove pneumatic air line and flushing connections.
c. Release nut of proximity switch holders and pull off proximity
switch.
d. Release separate connections at the side ports of the
valve housing. Remove flange screws (3) at the tank bottom flange.
e. Screw one flange screw in the threaded bore of the housing flange,
thus lightly lifting the complete valve from the tank bottom flange.
f. Pull the complete valve carefully out of the tank bottom flange.
3
tank bottom flange
valve housing
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
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12
11. Service Instructions
11.2 Dismantling of the product-wetted seals (service)
a. Release the hex. screws from the housing flange.
Screw one flange screw into the threaded bore of the shaft bearing,
thus lightly lifting the valve housing. Lift the valve housing carefully
over the valve shafts.
b. Remove the housing seal (29) from the groove of the
valve housing (1).
c. Dismantle drain pipe (13) from actuator (11).
d. Remove signal ring (14).
e. Release safety nut (20) by holding up the centering washer (22)
with a wrench SW 17. Remove safety nut and centering washer.
f. Lift off upper shaft (2) to the top.
g. Remove the two seat seals (28) from the groove of the
upper valve shaft (2).
h. Remove hex. screws (9) crosswise from the shaft bearing (8).
Releasing the hex. screws, the welded central spring in the
actuator is relieved.
i. Pull the lower valve shaft (4) with shaft bearing (8) out of the
actuator (11).
j. Remove seat seal (28) from the groove of the lower valve shaft (4).
k. Slide the shaft bearing (8) with shaft seal (5, 6) over the
lower valve shaft.
l. Remove quadring (26), guide bush (25) and O-ring (27) from
shaft bearing.
29
1
2
28
26
25
4
8
27
5, 6
11
9
14
2220
13
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
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13
11. Service Instructions
11.3 Installation of product-wetted seals and assembly of the
valve DELTA DET3
Attention: See to all seals and bearing surfaces in the
product area being slightly greased before their
installation.
a. Install housing seal (29) in the groove.
b. Insert quadring (26), guide bush (25) and O-ring (27) in the
appropriate groove of the shaft bearing.
c. Slide the shaft bearing over the lower valve shaft until it stops
at the retainer ring.
d. Installation of shaft seal (5, 6).
At first, place the PTFE ring (6) in the open groove of the shaft
bearing (8).Then press in the elastomer ring (5) with the wide side
to the front into the groove.
e. Then install the seat seals (28) in the upper and lower valve shaft.
Observe service instructions (see 12) for this process.
f. Insert the shaft bearing (8) with the lower valve shaft (4) in the
actuator and fix them.Tighten the 4 hex. screws crosswise.
g. Introduce the upper valve shaft through the lower valve shaft.
Attention: Place centering washer (22).
Screw on safety nut (20) and fix it
with a tightening torque Md = 40 Nm.
Hold up the centering washer during this process.
Check leakage gap of about 4 mm !
h. Place signal ring (14).
i. Fix drain pipe (13).
j. Slide the valve housing (1) over the valve shaft on the shaft bearing.
k. Insert screws (3) and tighten them crosswise.
l. Insert the valve in the tank bottom flange and tighten it.
m.Fasten the lateral separate connections.
n. Installation of valve position indicators.
Release nut and push proximity switch in the sleeve until it stops
and tighten it with the nut.
o. Install pneumatic air and cleaning lines.
29
1
2
28
26
25
4
8
24
27
5, 6
11
14
2220
13
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
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14
12. Service Instructions for the Installation of Seat Seals
seal profile
1.Provide the seal shoulder with a
thin layer of grease. 3.1 Press a short piece of the seal into the groove.
3.2 Fix the seal - already pressed in - by your finger
(to prevent loops). Use the assembly tool to press
a short part of the seal into finger direction.
Install the seal in the whole groove
circumferences.
4. Press the assembly tool between the seal
shoulder and the groove edge (both sides).
Proceed around the whole circumferences. Then
proceed around the whole circumferences of the
lower seal shoulder. This is to vent the seal groove
and to lock the seal shoulder.
2. Insert the seal into the valve shaft;
see to an even inclined position
of the seal.
3. Press the seal circumferentially into the groove
by means of an assembly tool (use screw
driver with round edges).
Place the assembly tool at the upper seal
shoulder.To get an even fit of the seal,
proceed step by step:
seal lip seal foot
shoulder
grease layer
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
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15
13. Detection of Seal Damage
Seals are replaced according to the instructions given in 11.
Valve closed
*pressure in tank
- leakage at the housing flange
housing seal (29) is damaged.
- leakage from the leakage chamber of the lower shaft
upper seat seal (28) is damaged.
*pressure in the housing
- leakage from the leakage chamber of the lower shaft
lower seat seal (28) is damaged.
- leakage at the leakage indicator
shaft seal (5, 6) is damaged.
Valve open
- leakage from the leakage chamber of the lower shaft
middle seat seal (28) is damaged.
14. Spare Parts Lists
( see annex )
Double Seat - Tank Outlet Valve
DELTA DET3
Operating Manual : rev.0
UK