High-Pressure Water Accessories
Overview
Hoses · Nozzles ·Valves · Applications
WOMA designs, manufactures and
markets high-pressure water jetting
accessories for cleaning, decoating,
decontamination, paint stripping,
surface preparation, cutting and
demolition. WOMA’s high-pressure
water accessories meet the requirements
of the “Richtlinien für Flüssigkeitsstrahler” ZH 1/406, October 1987.
Accessory programme:
왘 Flexible high-pressure hoses for
operating pressures up to 4,000 bar
and nominal widths between 4 mm
and 32 mm for connecting pressure
generating units and water tools.
왘 Sewer cleaning nozzles for operating pressures up to 300 bar with
several orifices, directed sidewards
or backwards.
왘 Cutting heads for operating pressures
up to 3,000 bar (resp. 4,000 bar)
for sucking and mixing of abrasives
in on-site cutting units (resp. Jet
Cutting units).
왘 Self aligning nozzle for operating
pressures up to 200 bar for bottom
sewer cleaning.
왘 Abrasive storage vessels and abrasive
hoses for storage and transport of
abrasives.
왘 Pipe cleaning nozzles for operating
pressures up to 2,500 bar with
several orifices, directed sidewards
or backwards, for tube bundle
cleaning.
왘 Foot valves for operating pressures
up to 1,500 bar – mechanically or
electrically operated.
왘 Pipe cleaning nozzles for operating
pressures up to 1,400 bar for
application in cleaning units for largediameter pipes.
왘 Multiple consumer systems for
operating pressures up to 3,000 bar
for running several water tools
simultaneously with one pressure
generating unit.
왘 High-pressure adapters for connecting high-pressure hoses as well as
hoses and pressure generating units
or water tools.
왘 Whirl jet nozzles for operating
pressures up to 750 bar for cleaning partially or fully blocked tube
bundles.
왘 Accessories for high-pressure hot
water jetting systems for operating
pressures up to 800 bar and water
temperatures up to 95°C.
왘 Strain relief devices for safe
positioning of high-pressure hoses.
왘 Round jet nozzles with continuous
flow channel for operating pressures
up to 2,000 bar for water tools.
왘 Positioning devices for operating
pressures up to 1,400 bar with
working lengths up to 12 m for
vessel cleaning tools.
왘 Round jet nozzles with sapphire
inserts for operating pressures up to
3,500 bar for ultra-high pressure
water tools.
왘 Fan jet nozzles for operating
pressures up to 2,000 bar for cleaning tools.
왘 Body support and splash guard for
water tools.
왘 Protective clothes for water jetting
operators.
왘 First Aid cards for water jetting
operators.
왘 Injection nozzles for operating
pressures up to 400 bar for sucking
and mixing of abrasives in
water-abrasive cleaning tools.
Self-aligning nozzle
type Skip-Jack with
fan nozzle for bottom
sewer cleaning
쏗d
L
Pneumatically driven
on-site ultra-high
pressure cutting system
with cutting head
type Cutting Head 3000
and round jet nozzle
type 10 for demolition
of reinforced concrete
and steel
Backring
O-Ring
Hydraulically driven
water tool with
round jet nozzle
type 1 for concrete
hydrodemolition
Positioning device
type PV 5000-1 with
self propelling rotating
water tool Tankmaster®
for autoclave cleaning
Special accessory
with fan jet nozzle
type 95 for hot
descaling of steel
Cleaning
of cement kilns
Water jet
assisted pile driving
Internal cleaning
of pipes
Decoating
of pipelines
High-pressure water
tool with rotating nozzle
carrier head and foot
valve type FV 1500-V-E-EXI
for tube bundle cleaning
WOMA designs and manufactures high-pressure water
systems, tools and accessories
for the following tasks:
왘 Internal cleaning of vessels,
autoclaves and containers
왘 Cleaning of sewers, pipes,
tube bundles etc.
왘 Paint stripping from gridirons
and body skids
왘 Maintenance of heavy
technical equipment
왘 Rehabilitation of structures
and buildings
왘 Environmentally friendly
surface preparation in
corrosion protection
왘 Heavy concrete removal and
reinforcement bar exposing
왘 Emission-free enamel stripping
and decoating of surfaces
왘 Descaling and derusting of
steel
왘 Cutting and demolition
of construction and heavy
equipment
Exposing
reinforcement bars
Removal
of explosives from shells
Jet-Cutting
of foam
Selection of Nozzles
30
Volume flow rate in l/min
WOMA offers computer
assisted calculation programmes
for estimating volume flow
rate, nozzle diameter, operating pressure, and hydraulic
power. The diagramme
shows just some examples
of calculated relations.
1 l/min = 0.264 US gal/min = 0.22 Imp. gal/min)
Calculation software
25
2,500 bar, continuous flow channel
20
2,000 bar, continuous flow channel
15
10
2,500 bar,
sapphire insert
5
2,000 bar, sapphire insert
0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Nozzle diameter in mm
(1 mm = 0.004 in)
The WOMA
Nozzle Flow-Chart
Nozzle index
0.5 0.6
1,500
2
1.21.4 1.6 1.8
3
2.5
3.5
4
5
4.5 5.5
6
7 8 9
10
20
12 14 16 18
25
30
35
1,000
40
800
45
600
Operating pressure in bar (1 bar = 14.5 psi)
The WOMA Nozzle Flow-Chart
enables the estimation of
a nozzle index depending on
water volume flow rate and
operating pressure. If, in turn,
the nozzle index is given, the
permissible values for operating
pressure and volume flow rate
can be estimated.
Attention:
The chart is valid only for
operating pressures up to
1,500 bar (22,000 psi) !
0.8
1
50
500
400
60
300
200
150
100
80
60
50
40
30
20
10
6 7 8 9
5
15
10
30
20
50
40
70
60
90
80 100
150
300
200
500
400
700 900
600 800
Volume flow rate in l/min (1 l/min = 0.264 US gal/min = 0.22 Imp. gal/min)
Application of the
WOMA Nozzle Flow-Chart:
Example: Volume flow rate: 90 l/min,
Operating pressure: 900 bar,
Nozzle index ?
Solution:
Mark the volume flow rate value at
the horizontal axis 씮 go upward up to
the horizontal 900 bar-line 씮 the intersection point is crossed by an inclined
index-line 씮 follow this line up to the
upper rim of the diagram 씮 read index:
3.5 씮 by using this index value, a suitable
nozzle can be selected from WOMA’s
nozzle catalogue.
High-Pressure Hoses
WOMA Apparatebau GmbH
Werthauser Str. 77 – 79 · D-47226 Duisburg
P.O. Box 14 18 20 · D-47208 Duisburg
Phone +49 2065 304-0 · Fax +49 2065 304-200
Internet: www.woma.de
WOMA’s high-pressure hose programme contains hoses
with the following technical parameters:
Nominal
width
in mm
DN 4
DN 5
DN 6
DN 8
DN 10
DN 12
DN 20
DN 25
DN 32
1 mm = 0.04 in
Maximum operating pressure
in bar
1,000 / 2,800
1,000 / 1,400
2,500 / 4,000
1,000
750 / 1,000
1,400 / 2,100
2,500
1,250 / 2,000
1,100 / 1,400
1,000 / 1,400
700
560
Maximum
delivery length
in m
200
200
200
200
200
200
200
100 / 200
100 / 200
100 / 200
100
100
1 bar = 14.5 psi
1 m = 3.28 ft
Specific
weight
in kg/m
0.10 / 0.29
0.20 / 0.25
0.41 / 0.54
0.25
0.22 / 0.40
0.40 / 0.60
0.75
0.87 / 1.01
1.22 / 1.36
2.10 / 1.82
2.08
2.59
Bend
radius
in mm
75 / 140
95 / 120
150 / 200
110
120 / 175
175 / 200
200
180 / 250
200 / 300
280 / 350
350
460
1 kg = 2.205 lb
Estimation of pressure losses in high-pressure hoses
The WOMA Pressure Loss-Chart enables the estimation of relative pressure
losses in hoses depending on water volume flow rate and nominal hose width.
Attention: Pressure losses in armatures are not considered!
DN 4
10,000
DN 5
1,000
DN 10
DN 12
100
DN 20
10
DN 25
DN 32
1
0.1
0.01
10
20
30
40 50
100
200
300 400500
1,000
Volume flow rate in l/min (1 l/min = 0.264 US gal/min = 0.22 Imp. gal/min)
Application of the
WOMA Pressure Loss-Chart:
Example: Volume flow rate: 100 l/min,
Nominal width: 12 mm,
Hose length: 40 m,
Complete pressure loss ?
Solution: Mark the volume flow rate value
at the horizontal axis 씮 go upward up to the
inclined DN 12-line 씮 from the intersection
point go to the left meeting the pressure
loss-axis 씮 read value: 1.3 bar/m 씮 complete
pressure loss: 1.3 bar/m 씮 40 m = 52 bar
(755 psi)
Delivery Programme
High-pressure plunger pumps
High-pressure water jet systems
High-pressure water tools
and accessories
Fields of Application
Agriculture
Automotive and aviation industry
Beverage industry
Cement industry
Chemical industry
Construction and concrete industry
Engineering industry
Food industry
Glass, porcelaine, ceramic industry
Iron, steel and metal industry
Mining
Municipal services
Offshore industry
Power industry
Public transport
Pulp and paper industry
Ship building
Wood working industry
© WOMA Apparatebau GmbH PR-ZU – 12/05-E · Subject to technical modification
DN 8
Nominal hose width in mm (1 mm = 0.04 in)
Relative pressure loss in bar/m (1 bar/m = 4.42 psi/in)
DN 6