Process engineering and components

Cartridge-type Chemical Vapour

Locks®
from TECHAP

Absorption of hazardous and pollutant chemical vapours produced during

the filling, decanting and draining of closed pressureless storage tanks and
containers
For all current chemicals, acids, lyes, oils and solvents
For removal of CO from air when storing demineralised water
2

For extracting humidity from gas atmospheres for materials which absorb
humidity ( H2SO4)
Suitable for installation in enclosed and outside positions
Ease of handling, with problem-free cartridge exchange
Protects against emissions
Sterile filtration
Pressure vacuum breakers
S 03/2005

02.1-1
 Chemical vapour locks from TECHAP

3 Design

3 Advice on installation

4 Chemical vapour locks

4 for pressureless storage tanks and containers

6 Suction lances with chemical vapour locks

6 for transport containers and special tanks
7 for 1,000 litre replacement containers and others

8 Additional equipment and accessories

8 Heating units
8 Rain protectors
9 Clamp connectors
9 Pressure vacuum breakers
10 Waste gas pre-washers
10 Quick-acting fill protector
12 Dust filters

13 Binding agents

13 Model reactions

13 Chemicals which can be processed

14 Model applications

15 Retrofitting kits
for old-type chemical vapour locks for use with cartridges

Environmental protection and operational safety

In the chemicals industry, decanting and emptying processes involving liquid chemi-
cals is a daily activity in many different types of application. It is not a rare occurrence
for large quantities of poisonous vapours to be released in the process; these can be
harmful to health and can form explosive gas-air mixes.

The evaporation rate depends on many factors, but the estimated quantity involved
is massive: in Germany alone, around 700,000-800,000 tonnes of chemicals (excluding
petrol) are decanted every year, and as a result polluting our environment, attacking
machinery and also posing a potential health risk. By contrast, using TECHAP chemical
vapour locks for closed pressureless storage tanks and containers, transport containers
and replacement containers guarantees high levels of operational safety and environ-
mental protection. The dangerous exchange of chemicals is made easy, and safe.

In the standard finish, the chemical vapour locks are PVC containers with a transparent
cylinder section, based on a cartridge system. The binding agent which absorbs the
harmful vapours which are created is located here in the filter bag, which is subsequent-
ly disposed of with the used binding agent.

TECHAP has the right solution for all currently-used chemicals. Existing old-style che-
mical vapour locks with a loose binding agent can be retrofitted cost-favourably for
cartridge operation. In addition, we are always ready to develop individually-customised
solutions to satisfy your requirements.

Our wealth of experience of chemical materials, their characteristics and the legal
regulations pertaining to them make us the ideal partner for companies in the chemicals
value-added chain.

02.1-2 Subject to technical modifications.

 Chemical vapour locks
Design / Advice on installation

Design Advice on use and installation

All our chemical vapour locks are based on the cartridge system. • The storage tank should not be overfilled.
In this design, the binding agent is already contained in the filter
bag, which is subsequently disposed of with the used binding • The liquid must not penetrate into the binding agent or into the
agent. In the standard finish, the housing is in PVC with a trans- cartridge.
parent cylinder section. For models with the additional label “G”,
the housing is in PP, with a glass cylinder. The housing can also • The fill rate as shown in the table should never be exceeded.
be supplied in the V4A steels (e.g. 1.4571 stainless steel). No
materials containing asbestos or silicone are used in the manu- • With fill procedures involving compressed air, the chemical
facture of these items. vapour lock should always be over-dimensioned by one size, in
order to ensure operational safety. Installation of a quick-
As a special finish, chemical vapour locks can also be manu- action shut-off device is recommended.
factured to withstand pressures of up to 2 bar. Models above the
size of the SL5 can also be equipped for use in outside situations, • Avoid sudden pressure shocks and impacts or decompressions,
with a self-regulating heating element. The element is then inte- especially during filling procedures and when displacing pres-
grated into the filter bag. To protect the binding agent against the sure form the supply tank.
rain, a rain protector is required. Other than to change the car-
tridges, no maintenance is needed. The consumption of binding • With new plants, the pressure loss in accordance with the
agents BM1 and BM4 is shown by the change in the colour indica- nominal flow rate for BM1 is approx. 1-13 mbar. For BM2 and
tors. The depletion of binding agent BM2 can only be determined BM4, it is 0.5-10 mbar (at nominal velocity).
by measurement or odour test.
• The cartridges with binding agent BM2 are to
Cartridge be replaced at regular intervals (roughly half-yearly).

• For binding agents BM1 and BM2, the heater should only be
activated when there is a risk of frost.
Binding agent

• For binding agent BM4, the heater should always be activated.

Supporting base
• With the cartridge design, the heating element is integrated
into the filter bag. On site, the binding agent - e.g. BM4 - is
then filled into the installed filter bag. These filter bags are to
Chemical vapour lock be replaced after they have been filled twice with binding
agent; if binding agent BM1 is used, then the filter bag must be
replaced after each use.
Housing
• The base glued to the cylinder part is always at the bottom.
With the PPH finish and VA finish the sealed-in part is similarly
to be used as the base.
Cylinder part
• If being set up outside, the chemical vapour locks must be pro-
tected against rain and sun using our rain protector, as well as
Supporting base
against frost.
Housing

• Avoid temperatures over 50°C for PVC products, 80°C for the
PP finish, and 40°C when using binding agent BM1.

• Take note of the possible heating of the storage tank through

insolation. Black tanks can be heated to temperatures of up
to 80°C. This temperature generates significant volumes of
vaporised gas. Run-off pipes must be installed with the fall on
the chemical vapour lock running away from the tank, so that
no condensate can flow back. Condensate caused by tempe-
rature gradients must be avoided at all costs.

• Always follow instructions and regulations, such as DIN, UVV,

VDE, VBF, ZVEI and TA-Luft, and other national and internatio-
nal specifications (e.g. German water conservancy law - WHG).

Subject to technical modifications. 02.1-3

Chemical vapour locks
for pressureless storage tanks and containers

Overview of types of chemical vapour locks for pressureless storage tanks and containers
Type SL0K PVC BL1G 2 x BL1GD SL1K SL3K SL5K
Max. air quantity 200 litres/h 500 litres/h 500 litres/h 1.500 litres/h 5.000 litres/h 15.000 litres/h
Dimensions (in mm)

SL5K and above

130
with one base flan-
ge, optionally with
two flanges

130
Matching cartridge
types with 1µ fine
filter (filter unit for
single use)

Typ BM1 … BM1K0 BM1KBL BM1KBL BM1K1 BM1K3 BM1K5

Typ BM2 … BM2K0 BM2KBL BM2KBL BM2K1 BM2K3 BM2K5
Typ BM4 … BM4K0 BM4KBL BM4KBL BM4K1 BM4K3 BM4K5

Type SL7K SL9K SL11K

Max. air quantity 30.000 litres/h 72.000 litres/h 150.000 litres/h
Dimensions (in mm)

SL5K and above

with one base flan-
ge, optionally with
two flanges

Matching cartridge
types with 1µ fine
filter (filter unit for
single use)

Typ BM1 … BM1K7 BM1K9 BM1K11

Typ BM2 … BM2K7 BM2K9 BM2K11
Typ BM4 … BM4K7 BM4K9 BM4K11

Flanges to DIN and ANSI standard on request. Other connectors, e.g. clamp connectors, to ISO on request.

02.1-4 Subject to technical modifications.

 Chemical vapour locks
for pressureless storage tanks and containers
Ordering data for chemical vapour lock® with the cartridge system
Type Case Standard binding agent
Max. air Material Flange/ BM1K BM2K BM4K
quantity Lid/ Screw Order Weight
litre/h Cylinder thread No. *) Order No. Order No. Order No. in kg *)
SL0K 200 PVC/PVC G 3/4“ PP 860 4008 860 4051 860 4052 860 4080 0,2
BL1-G 500 PTFE/Glass G 1/2" 860 0106 860 4058 860 4044 860 4033 0,6
2x BL1-G 500 PTFE/Glass G 1/2" 860 0004 860 4058 860 4044 860 4033 1,0
SL1K 1.500 PVC/PVC G 3/4" 860 4010 860 4011 860 4055 860 4081 0,3
SL1KVA-G 1.500 V4A/Glass G 3/4" PP 860 4135 860 4011 860 4055 860 4081 1,0
SL1KVA-G 1.500 V4A/Glass 860 4235 860 4011 860 4055 860 4081 1,3
SL3K 5.000 PVC/PVC G 2" 860 4040 860 4042 860 4056 860 4082 1,0
SL3KPP-PVC 5.000 PP/PVC G 2" 860 4140 860 4042 860 4056 860 4082 1,2
SL3KPP-G 5.000 PP/Glass G 2" 860 4034 860 4042 860 4056 860 4082 2,2
SL3KVA-G 5.000 V4A/Glass 860 4251 860 4042 860 4056 860 4082 3,9
SL5K 15.000 PVC/PVC 860 4045 860 4046 860 4047 860 4083 2,8
SL5.2K 15.000 PVC/PVC 860 4060 860 4046 860 4047 860 4083 3,5
SL5KPP-PVC 15.000 PP/PVC 860 4145 860 4046 860 4047 860 4083 3,0
SL5.2KPP-PVC 15.000 PP/PVC 860 4160 860 4046 860 4047 860 4083 3,3
SL5KPP-G 15.000 PP/Glass 860 4069 860 4046 860 4047 860 4083 4,0
SL5.2KPP-G 15.000 PP/Glass 860 4141 860 4046 860 4047 860 4083 4,5
SL5KVA-G 15.000 V4A/Glass V4A 860 4253 860 4046 860 4047 860 4083 7,7
SL5.2KVA-G 15.000 V4A/Glass V4A 860 5253 860 4046 860 4047 860 4083 10,0
SL7K 30.000 PVC/PVC 860 4070 860 4076 860 4071 860 4084 3,2
SL7.2K 30.000 PVC/PVC 860 4078 860 4076 860 4071 860 4084 4,0
SL7KPP-PVC 30.000 PP/PVC 860 4170 860 4076 860 4071 860 4084 3,0
SL7.2KPP-PVC 30.000 PP/PVC 860 4146 860 4076 860 4071 860 4084 3,5
SL7KPP-G 30.000 PP/Glass 860 4179 860 4076 860 4071 860 4084 5,3
SL7.2KPP-G 30.000 PP/Glass 860 4171 860 4076 860 4071 860 4084 5,9
SL7KVA-G 30.000 V4A/Glass V4A 860 4255 860 4076 860 4071 860 4084 9,2
SL7.2KVA-G 30.000 V4A/Glass V4A 860 5255 860 4076 860 4071 860 4084 11,7
SL9K 72.000 PVC/PVC 860 4073 860 4077 860 4072 860 4085 4,8
SL9.2K 72.000 PVC/PVC 860 4074 860 4077 860 4072 860 4085 5,7
SL9KPP-PVC 72.000 PP/PVC 860 4147 860 4077 860 4072 860 4085 4,4
SL9.2KPP-PVC 72.000 PP/PVC 860 4148 860 4077 860 4072 860 4085 5,0
SL9KPP/PMMA 72.000 PP/PMMA 860 4149 860 4077 860 4072 860 4085 4,8
SL9.2KPP/PMMA 72.000 PP/PMMA 860 5149 860 4077 860 4072 860 4085 5,5
SL9KPP-G 72.000 PP/Glass 860 4180 860 4077 860 4072 860 4085 8,6
SL9.2KPP-G 72.000 PP/Glass 860 4194 860 4077 860 4072 860 4085 9,3
SL9KVA-PMMA 72.000 V4A/PMMA 860 4254 860 4077 860 4072 860 4085 10,1
SL9.2KVA-PMMA 72.000 V4A/PMMA 860 5254 860 4077 860 4072 860 4085 12,9
SL9KVA-G 72.000 V4A/Glass V4A 860 4256 860 4077 860 4072 860 4085 14,0
SL9.2KVA-G 72.000 V4A/Glass V4A 860 5256 860 4077 860 4072 860 4085 16,5
SL11K 150.000 PVC/PVC 860 4190 860 4094 860 4096 860 4102 8,0
SL11.2K 150.000 PVC/PVC 860 4191 860 4094 860 4096 860 4102 9,5
SL11KPP-PVC 150.000 PP/PVC 860 4192 860 4094 860 4096 860 4102 6,1
SL11.2KPP-PVC 150.000 PP/PVC 860 4193 860 4094 860 4096 860 4102 7,1
SL11KPP-PMMA 150.000 PP/PMMA 860 5181 860 4094 860 4096 860 4102 5,9
SL11.2KPP-PMMA 150.000 PP/PMMA 860 5182 860 4094 860 4096 860 4102 7,0
SL11KVA-PMMA 150.000 V4A/PMMA V4A 860 4257 860 4094 860 4096 860 4102 13,5
SL11.2KVA-PMMA 150.000 V4A/PMMA V4A 860 5257 860 4094 860 4096 860 4102 17,4

Housing with 1 base flange  2 flanges (bottom and top)  V4A flange from 1.4571  *) without binding agent
Flanges to ANSI standard on request. Other connectors, e.g. clamp connectors, to ISO on request.
Subject to technical modifications. 02.1-5
Suction lances with chemical vapour locks
for transport containers and special tanks

Suction lances for gassing (ST1K) and

non-gassing (TA1) liquids:
Cartrige
• Adjustable length
Draw spindle
• Max. of 2 level switches (in PVC or
PTFE) possible

105 mm
• Level switch can be used as a closer
or opener, by reversing the float
• Easy-to-handle suction lances - they
Draw spindle
are simply inserted into the transport
container and screwed tight
• Return flow connector: G 1/4“
• Special lengths on request
Transport
• Suction port with union nut + insert d container
16 available
max. 900 mm
min. 610 mm

Level
Level switch switch

Suction lance ST1K Suction lance TA1 Model application

Order data Suction lances for transport containers

Lance type Description Adjustable Order No. Binding Type Order No.
length agents
ST1K-FV for gas- • Cartridge system 30 litres 320 … 500 mm 860 4041 Cartridges BM1K 860 4051
sing liquids • With base valve 60 litres 610 … 900 mm 860 4050 (only for BM2K 860 4052
ST1K and
ST1K for gassing • Cartridge system 610 … 900 mm 860 4048 BM4K 860 4080
ST1K-FV)
liquids • No base valve

TA1-FV for non- • Without cartridge system 30 litres 320 … 500 mm 860 0038
gassing liquids • With base valve 60 litres 610 … 900 mm 860 0049
TA1 for non-gas- • Without cartridge system 610 … 900 mm 860 0039
sing liquids • No base valve

Order data Accessories

Description Description Order No.
Level switch
Teflon, cable 5 metre*) 350 0316
*) contact load 60V, 300mA Teflon, cable 10 metre*) 350 0315
Retainer for level switch PVC adjustable 860 0321
Thread adaptor equal to 70 x 6 860 0310
equal to 57 x 4 860 0311
Reducer 70 x 6 / 57 x 4 860 0312
Draw spindle Thread 57 x 4 860 0313
Thread 70 x 6  (standard) 860 0314
External thread 860 0320
Hose transitions on request

02.1-6 Subject to technical modifications.

 Suction lances with chemical vapour locks
for 1,000 litre replacement containers and others

Suction lances for gassing (ST2K) and

non-gassing (TA2) liquids: Cartridge

• Adjustable length
• Max. of 2 level switches (in PVC or
PTFE) possible
• Level switch can be used as a closer
or opener, by reversing the float
Return plug
• Easy-to-handle suction lances - they
are simply inserted into the transport Draw spindle

container and screwed tight

• Return flow connector G 1/4“ 1.000 l chainging
container
• Special lengths on request
• Suction port with union nut +
insert d 25 available

adjustable
Elbow joint
adjustable length

alternative also
with base valve

Level switch adjustable

Suction lance ST2K Suction lance TA2 Model application

Order data Suction lances for transport containers

Lance type Description Adjustable Order No. Binding Type Order No.
length agents
ST2K-FV for gas- • Cartridge system 700 … 1,300 mm 860 4186 Cartridges BM1K 860 4011
sing liquids • With base valve (only for BM2K 860 4055
ST2K for gassing • Cartridge system 700 … 1,300 mm 860 4187 ST2K and
BM4K 860 4081
liquids • No base valve ST2K-FV)

TA2-FV for • Without cartridge system 700 … 1,300 mm 860 0185

non-gassing liquids • With base valve
TA2 for non-gas- • Without cartridge system 700 … 1,300 mm 860 0183
sing liquids • No base valve

Order data Accessories

Description Description Order No.
Level switch
Teflon, cable 5 metre*) 350 0316
*) contact load 60V, 300mA Teflon, cable 10 metre*) 350 0315
Retainer for level switch PVC, ST 2 / TA 2 860 0297
Connection parts Insert union nut 860 0299
O-Ring D 25 / DN 20
Hose transitions on request
Elbow joint PVC, removable 860 0319
PPH, removable 860 0320
Screw lid S 160 x 7 mm 860 0315
S 240 x 6 mm 860 0316

Subject to technical modifications. 02.1-7

 Additional equipment and accessories
Heater units/Rain protector

Heater units for SL5K … SL11K

Description Suitable for types Order No.
HE1 SL5/7/9K 860 0059
PE Self-regulating heater
230 V, 50/60 Hz, 0,3 A, 60 W
L1
2 1
3
HE2 SL11K 860 0198
N Self-regulating heater
Mains connection 230 V, 50/60 Hz, 0,3 A, 90 W
PE = Ground
L1 = Phase
N = Neutral
Atex-protection zone 1 SL7/9/11K 860 0199
For binding agents BM1 and BM2, the he-
explosion protection
ater should only be activated when there is
for heater
a risk of frost. For BM4, the heater should
always be activated.
Temperature switch for für He1 und He2 SL5/7/9/11K 860 0201
Switch-on temperature can be selected
> 0°C; Power supply 230V, 50/60Hz; Relay
4 5 3
contact load max. 10 A inductive
DIN rail
mounting
30

45 mm 70 mm
20 40

10 50 68 mm
0 60

7 6 1 2

32 mm

Rain protectors for types SL3K … SL11K

Dimensions Description Suitable for types Order No.
RH1PP rain protector in PP SL3K … SL7K 860 0087
B = 375 mm, H = 151 mm

RH2PP rain protector in PP SL9K … SL11K 860 0197

B = 485 mm, H = 165 mm
RH3VA rain protector in V4A SL3K and SL7K 860 4196
B = 405 mm, H = 140 mm
RH4VA rain protector in V4A SL9K and SL11K 860 4197
B = 470 mm, H = 165 mm

02.1-8 Subject to technical modifications.

 Additional equipment and accessories
Clamp connectors/Pressure vacuum breakers

Clamp connectors to ISO 2852 and accessories

Instead of flanges or screw threads, chemical vapour
locks can be equipped with clamp connectors in
rigid PVC or V4A, for a supplementary charge.
Please quote order number. Clips and seals are ordered
separately.

Nominal diameter Diam. D PVC clamp conn. V4A clamp conn. Viton seal PTFE seal Clips
PVC / V4A mm inch mm Order-No. Order-No. Order-No. Order-No. Order-No.
25 / 25,4 20 50,5 860 0325 860 0335 860 4325 860 4425 860 4525
32 / 33,7 25 50,5 860 0326 860 0336 860 4326 860 4426 860 4526
40 / 41,0 32 64,0 860 0327 860 0337 860 4327 860 4427 860 4527
50 / 50,8 40 64,0 860 0328 860 0338 860 4328 860 4428 860 4528
63 / 63,5 50 77,5 860 0329 860 0339 860 4329 860 4429 860 4529
70 / 70,0 65 91,0 860 0324 860 0350 860 4333 860 4433 860 4533
75 / 76,2 65 91,0 860 0330 860 0340 860 4330 860 4430 860 4530
90 / 88,9 80 106,0 860 0331 860 0341 860 4331 860 4431 860 4531
100 / 101,6 119,0 860 0332 860 0342 860 4332 860 4432 860 4532
110 / 114,3 100 130,0 860 0343 860 0345 860 4334 860 4434 860 4534
140 / 139,7 125 155,0 860 0344 860 0346 860 4335 860 4435 860 4535

Pressure vacuum breakers

Order No. Description
Pressure vacuum breakers to protect storage tanks, mainly 860 8000 Flanges in PVC, DN 100 PN 10/16 preset to 5-30
when filling using compressed air mbar, not heated
VA, heatable, for external use on request

Dimensions (in mm) 121 Model applications

Ø160 1–2% gradient
DN 100
325
195

DN 100 PN 10/16

A = Connection to storage tank

B = Air feed and venting pipe
1 = Overpressure valve
2 = Vacuum valve

Subject to technical modifications. 02.1-9

Additional equipment and accessories
Waste gas pre-washer/Quick-acting fill protector

Waste gas pre-washer for SL3K-SL11K

Types Note
Pre-washers are available in four sizes. They Highly concentrated chemicals such as hy-
Mist collector are equipped with a mist collector, drochloric acid (above a 33% concentrati-
Nozzle a spray nozzle, a deflector, a DN10 splash wa- on) or ammonium hydroxide (above a 25%
ter connection for demineralised water (where concentration) are highly gassing and thus
Deflector there is a purity requirement), and 2 flanges consume disproportionately high amounts
top and bottom (DN100 or DN125, or G 2“). of binding agent. A higher depletion of bin-
Screen ding agent may also occur due to higher
Water spray connector temperatures. To normalise consumption,
Waste gas pre-washer use of a waste gas pre-washer is recom-
max. 5 m3/h mended. It significantly reduces the con-
2 x G2“ connectors centration in the waste gas, thus prolonging
Flange (t. and b.)
DN100 or DN125 Dimensions as per SL3 K the lifetime of the downstream cartridges
considerably.
Standard version with washing water return to the tank.
Separate arrestor at extra charge.
Description Volume of waste D H DN Flow resistance with Splash water Weight Order No.
gas (mm) (mm) rated load max.
Waste gas pre-washer up to 5 m3/h 160 362 G 2" approx. 0,5 … 1 mbar 25 l/h 2 kg 860 2030
Waste gas pre-washer 50 m /h3
270 638 100 approx. 0,5 … 1 mbar 50 l/h 8 kg 860 2050
Waste gas pre-washer 72 m³/h 325 638 100 approx. 0,5 … 1 mbar 70 l/h 10 kg 860 2075
Waste gas pre-washer 150 m /h 3
420 745 125 approx. 0,5 … 1 mbar 90 l/h 13 kg 860 2150

Quick-acting fill protector

the volume of the feed tank - will have to The solution
be disposed of as soon as the feed tank Since the supplier cannot as a rule be ex-
is empty. Since this exhaust air arrives at pected to prevent break-through of air
the storage tank at a speed between 20 consistently and without exception during
and 30 times the normal rate, no cleaning manual operations, installing a quick-
device will be able to clean this volume acting gate valve in the fill pipe is essential.
and discharge it instantly, with the result
that the storage tank (which is designed Notes
for pressureless operation) can be impin- With fill procedures involving compressed
ged with a pressure of up to 3bar, at least air, the TECHAP chemical vapour lock
for a short while. In the case of a speci- should always be over-dimensioned by
fied fill rate of 15m3/h, for example, then one size, in order to ensure operational
depending on the size of the pipes and safety.
the pressure, an exhaust air volume of up The quick-acting fill protector is to be
to 300-450m3/h may result. used only with conductive liquids. The
sensor closes the main pipe as soon as it
TECHAP chemical vapour locks have been detects air, which is then discharged via
designed for a nominal fill rate and must the bypass with a built in orifice.
not be loaded above that rate. Surge
To safeguard the storage tank when using chambers or washers experience break-
a compressed air feed from the feed tank, through, without performing their actual
TECHAP offers its quick-acting fill protec- task of cleaning the air.
tor as a complete unit (fast-closing valve
including control unit, sensor and bypass Information on fill rates is to be checked
valve with pipework) in nominal diameters in all instances, especially for filling using
DN 32, 40, 50, 65 and 80. There is a choice compressed air.
of the following materials: PVC, PP. The chemical vapour trap must be desi-
gned to accommodate this rate, or the
The problem size of the pipe reduced to ensure that the
If the feed tank is impinged with com- indicated fill rate is observed (please refer
pressed air to drive the liquid into the to container licensing and other regulati-
storage tank or even just to maintain the ons). Installing a baffle in the fill pipe is
flow, then the vapour-saturated volume recommended. If necessary, reduce pres-
of compressed air - i.e. two to three times sure.

02.1-10 Subject to technical modifications.

 Additional equipment and accessories
Quick-acting fill protector

Schematic diagram for the quick-acting fill protector

1 Measurement sensor
2 Quick-acting gate valve
(pneumatic)
3 Pneumatic control valve
4 Manual bypass valve
5 Control unit

Installed length approx. 1.300 mm

Order data Quick-acting fill protector

Description Connector Order No.
PVC PP
Quick-acting gate valve V DN32 860 0023 on request
Complete unit with pipework and V DN40 860 0024 on request
including control unit and sensor
V = Screw connector V DN50 860 0021 on request
F = Flange V DN65 860 0019 on request
F DN80 860 0022 on request

Accessories for quick-acting fill protector

Dimensions [mm] Description Description Order No.
Wall-mounted housing IP 54 860 0025
for control unit
Double or triple housing
on request.
Inevitable if distance
between measurement
sensor and location of
installation > 15 m

G1“ sensor PVC body with special 860 0027

with Cx appliance plug meassuring pin

O-ring
Appliance plug
Cx

RS1 control unit Contact load: 860 0028

in plug-in housing, 230 V AC,
Dimensions in mm, 0.5A inductive,
230V power supply, earth externally,
sensitivity and delay change-over contact
time pre-set.

For quick-acting gate valves and valves, see the ball valve product area

Subject to technical modifications. 02.1-11

Additional equipment and accessories
Dust filters

Dust filters

mbar
Flow resistance
• Up to 8,000 litres of air per minute, in both directions
• Filter fineness <2µm absolute
• Low pressure loss - see diagram
• Non-metallic, using plastic material with a flexible connector
• Suitable for breathing filters
• Easy assembly using a strap retainer, easy to replace
• As a pre-filter for TECHAP chemical vapour locks
Volume flow
or as an independent (stand-alone) dust filter. Also
available in protective housing.

Item Nominal Dimensions in mm Insert Weight V2A strap retainer to fasten filter
capacity depth
Order No. m³/min d1 d2 d3 h1 h2 e Order No.
860 3001 1 50 65 110 120 95 20 160 g 860 3021
860 3002 2 75 90 130 150 125 20 240 g 860 3022
860 3003 4 75 90 160 165 140 25 380 g 860 3022
860 3004 6 100 120 230 160 120 30 680 g 860 3023

Sterile filters
as single or intermediate use

02.1-12 Subject to technical modifications.

 Binding agent/Model reactions/Chemicals which can be
processed

Binding agents
Binding agent type Description Bulk density
BM1 Calcium hydrate with colour indicator (bluish discolouration), approx. 0.86 kg/l
when reacting with acid vapours, stable salts are produced
BM2 Various activated carbon types, with no colour indicator (smell approx. 0.50 kg/l
test or test stick) - various types and particle sizes
BM4 Air-drying agent with colour indicator, can be reprocessed by approx. 0.90 kg/l
heating to approx. 70-80 °C

Note Note on disposal:

for new plants, the pressure loss is approx. 1-13 mbar, in accor- all information regarding disposal is offered as a recommendati-
dance with the nominal throughput for BM1. At nominal velocity! on, and requires clarification with the responsible authorities and
0.5-10 mbar for BM2 and BM4. supervisory bodies.

Model reactions for binding agents

Binding agent BM1 Binding agent BM4
Binding agent BM1 largely comprises calcium hydroxide with a 1 litre of BM4 moisture binding agent (bulk density = 730 g/l),
colour indicator. at 20°C and 1.000 mbar air pressure takes up around 25 % by
weight of its own bulk density:
Model reactions with hydrochloric acid
730 g/l /4 = 182,5 g water/litre of BM4 binding agent
Ca(OH)2 + 2HCl = Ca(Cl)2 + 2H2O
Consumption at 20°C per 10m3 30% waste gases, approx. 260 g. 120
H20 within the Air g/m3

Model reaction with carbon dioxide 100

Ca(OH)2 + CO2 = CaCO3 + H2O
80
Consumption per 10m3 air approx. 8g. Despite the low consump-
60
tion, the binding agent should be replaced in all cases at least
once a year, to avoid formation of corridors and crusts. After a 40
longer period in use, the colour indicator may become less active!
20
For CO2 removal, we recommend the use of the higher sized
0
chemical vapour lock for the respective application, to increase
-20 -10 0 10 20 30 40 50 60 70 °C
the dwell time.

Chemicals which can be processed

Chemical description Chemical Formula Chemical description Chemical Formula
Aluminium chloride AlCl2 Monoethanolamine C2H7OH
Formic acid HCO2H Sodium hypochloride NaClO / H2O
Aluminium sulphate (hygroscopic) AlSO4 Sodium bisulphate NaHSO3
Sulfamic acid H2NSO3H Sodium phosphate Na3PO4
Ammonium hydroxide *) NH3 + H2O Soda lye NaOH/H2O
Acrylic acid C3H4O3 Oleum (half filtering speed) H2SO4+ SO3
Acetone Carbon dioxide (v-max. = 50% CO2) C3H6O Phosphoric acid (any concentration) H3PO4
Ethanoic acid CH3COOH Nitric acid (any concentration) HNO3
Ferrous chloride FeCl2 Hydrochloric acid **) HCl
Ferric chloride FeCl3 Sulphuric acid ***) H2SO4
Formaldehyde in water HCHO+H2O Solution of hydrogen sulphide (toxic) H2S/H2O
Hydrofluoric acid HF+H2O Sulphurous acid (approx. 6% in water) H2SO3 /H2O
Hydroxypropionic acid CH3CH(OH)CO2H Triethanolamine (hygroscopic) N(CH2CH2OH)
Diamide hydrate (toxic) N2H4 / H2O Toluene C6H5CH3
Potassium hypochloride KClO / H2O Xylene C6H4(CH3)2
Carbon dioxide CO2
Further chemicals on request. *) 24-26%, only decant with transfer pipe and pump (v = max. 50%)
**) 30-33%, 33% solution only with pre-washer)
***) any concentration, with 96% acid possibly may require feed air drying

Subject to technical modifications. 02.1-13

Model applications

1 2 3

SL7K chemical vapour lock SL7K chemical vapour lock

with BM1K binding agent with BM1K binding agent

SL7.2K chemical vapour lock

SL7K chemical vapour lock
Pre-washer with BM4K binding agent
with BM1K binding agent
and heater unit

ANSI or DIN ANSI or DIN ANSI or DIN

HCI tank HCI tank H2SO4 tank

under 33% over 33% 96 - 98%

Decanting station with compressed air displacement

Installation of the quick-acting gate Note
valve fill protector is urgently recom- Here it is not only the exhaust air from the storage tank which needs to be cleaned, but
mended if decanting involves use of also the compressed air from the feed tank, and taking into account the pressure being
compressed air. used for the entire volume being treated. If using the quick-acting gate valve as a fill
shut-off in the event that the level is exceeded, the bypass valve must also be operated
automatically.

Quick-acting gate valve

Automatic control switches Bypass

To the consumer

To neutralisation

02.1-14 Subject to technical modifications.

 Process engineering and components
M
3
TECHAP is a leading provider of products for process enginee-
ring and customer-specific process solutions. Our products
contribute to simplifying operating flows and operating proces-
ses and increasing operational safety. Since our products are
standardised, they can be supplied to very short deadlines any-
where in the world. Techap GmbH
Böblingerstraße 13 • 71229 Leonberg
The realisation of customised solutions is part of our work. We Tel. + 49.7152. 90 633 - 0
manufacture products which are precisely tailored to customer Fax + 49.7152. 90 633 - 2
requirements. Flexibility and co-operation are instinctive to us. www.techap.de • info@techap.de

Our product range for industrial uses includes

Chemical vapour locks Jet pumps

for absorption of hazardous and pollutant with performance adjustment, for suction,
chemical vapours produced during the thinning, conveying and creating a vacu-
filling, decanting and draining of closed um; resistant to chemicals, with a choice
pressureless storage tanks and contai- of propellant, e.g.: water, liquid propel-
ners. lants, air, gases

Part-turn valve actuators Level switches

impinged on both sides or with a chemically resistant to acids and lyes,
spring return with reed contact magnetic switch,
Pivoting angle: 90°, 120°, 180°, 360° multiple potential uses, robust
Torque 5-1,600 Nm
with the Miller Twin-Ball-System®

Process valves UV radiation disinfection units

TECHAP process valves are acid- and for sterilising water, with subsequent
lye-resistant complete control units for micro-filtration
practically all procedures involving ion
exchange, such as water softening and
desalination plants

Valves Specially-manufactured pro-

?!
Piston control valves ducts
Ceramic flat slide valves If you were unable to find the compon-
Motor and pneumatic ball valves ents to fit your requirements in this list,
Ball check valves please contact us. Specially-manufac-
Injection valves and on-off valves tured products are our forte.

-0
+ 4 9.715 2 . 9 0 633
02.1-15
Subject to technical modifications. Tel.
hap.de
w w w.tec
M
3

02.1-16 Subject to technical modifications.