Document G6ed8KRegp698mM30z88LKm0r
SGtlaasnsdard Glasslined Performance WCWaGrr-ieRrseliable and Versatile
For over 130 years, Pfaudler is the leader in developing new technologies to meet the highly specific chemical processing needs of its clients. One reason why our glass-lined equipment is trusted by over 90% of the world's top chemical companies is the sheer reliability of our reaction technologies and comprehensiveness of our glasslined accessories. These technologies are critical to the safe containment of corrosive contents, maintaining the vessel pressure and ensuring the final batch quality. In short, our glass-lined technologies are absolutely integral to an effective process.
PRODUCTS & EQUIPMENT
Glass Lined Reactors Glass Lined Mixing Systems Baffling Technologies Storage Tanks & Receivers Glass Lined Columns Accessories Glass Lined Instrumentation Glass Lined Heat & Mass Transfer
Pfaudler World Wide Glass
WWG - the universally applicable classic
Extreme corrosion resistance smoothly linked with extraordinary mechanical stability: these are only two of many properties that distinguish our standard enamelling. Pfaudler has taken advantage of knowledge gained the field of high-technology ceramics in order to improve physical properties and chemical stability. The result is Pfaudler World Wide Glass WWG, an enamel displaying maximum resistance to acids, water and bases. This provides operators of enamelled devices with a material that protects both the equipment and the product as never before. Pfaudler World Wide Glass WWG is available in cobalt blue, and also white if desired. The high degree of light reflection of the white enamel creates bright reactive environment and facilitates quick recognition of any colour shift in the current process.
Overview of advantages of Pfaudler blue and white World Wide Glass
WWG blue Extraordinary corrosion resistance Very high resistance against mechanical
strain Good durability regarding thermal shock Homogeneous current enamelling Anti-adhesive surface Additional advantages of white WWG Product residues optimally detectable Greater contrast to product High degree of light reflection
4
ACID CONCENTRATION H2SO4 | HNO3 ION SENSITIVE pH Value 2.0
5
Properties
There are many good reasons for using enamelled steel: Increased productivity, equipment and product protection, process and plant safety.
WWG CORROSION CURVE pH value measured at room temperature
200
180
160
140
120
100
80
60
40
20
0
-2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
pH Value
WWG 0.1 mm/a corrosion rate WWG 0.2 mm/a corrosion rate
Temperature [C]
PHYSICAL PROPERTIES
Corrosion in HCI (20 % HCI 108 C)
(DIN EN ISO 28721-2)
Corrosion in water
Corrosion in 0,1 N NaOH
(DIN EN ISO 28721-2)
Impact resistance
Resistance to disruptive discharge
Specific electrical resistivity
Adhesive strength
Abrasion resistance
Thermal shock resistance
(DIN EN ISO 28721-2)
* Applies to sample plates in laboratory conditions
6
SPECIFICATION 0.039 mm/a < 0.01 mm/a 0.29 mm/a 33 Nm > 30 kV/mm > 1013 cm at RT > 100 N/mm2 2.4 mg cm2 h 230 K*
108 C 100 C 80 C
7
Chemical Behaviour
In respect of alkalis and acids
The iso-corrosion curves reflect the ratio of product or acid volume to the enamelled surface in large stirring containers and yield experimental data according to DIN EN 14483-2 and 5. Using the silica effect, Pfaudler World Wide Glass WWG can take much more chemical stress than the usual limits without any risk. The diagrams thus also show typical concentrations with added silicon dioxide as corrosion protection.
FIG. 2 SULPHURIC ACID wt % H2SO4
C
0.2
0.1
220
1
180
2
3
4
5
140
100 20 40 60
1 50 ppm SiO2 0.05 2 600 ppm SiO2 0.02 3 250 ppm SiO2 0.02 4 250 ppm SiO2 0.04 5 60 ppm SiO2 0.1
mm/a mm/a mm/a mm/a mm/a
80
100
FIG. 4 PHOSPHORIC ACID wt % H3PO4
C 220
1 180
140
2 3 4
5
0.2
100
0.1
20
40
60
80
1 400 ppm SiO2 0.05 2 600 ppm SiO2 0.03 3 600 ppm SiO2 0.02 4 350 ppm SiO2 0.02 5 200 ppm SiO2 0.1
mm/a mm/a mm/a mm/a mm/a
8
FIG. 1 HYDROCHLORIC ACID wt % HCI
C
200
1
180
2
3
4
0.2
160
5
0.1
140
120
100
10
20
30
1 250 ppm SiO2 0.1
mm/a
2 600 ppm SiO2 0.004 mm/a
3 250 ppm SiO2 0.01 mm/a
4 100 ppm SiO2 0.01 mm/a
5 100 ppm SiO2 0.03 mm/a
FIG. 3 NITRIC ACID wt % HNO3
C
200
1
180
234
160
5
140
120
100
20
40
1 250 ppm SiO2 0.05 2 600 ppm SiO2 0.03 3 600 ppm SiO2 0.02 4 250 ppm SiO2 0.02 5 100 ppm SiO2 0.1
mm/a mm/a mm/a mm/a mm/a
0.2 0.1
80
FIG. 5 ACETIC ACID wt % CH3COOH
C
0.2
0.1
220
1 23 180
140
100
20
40
60
1 300 ppm SiO2 0.07 2 100 ppm SiO2 0.08 3 50 ppm SiO2 0.07
mm/a mm/a mm/a
80
100
The iso-corrosion diagrams illustrate factors relevant to the corrosion rate. These include, for example, the volume/surface ratio, the base concentration and the temperature. All information in the diagrams refer to a technically pure base. The curves reflect experimental data according to DIN EN 14483-2 and 5. The two upper diagrams are predominantly applicable to aqueous solutions containing alkali-hydroxide. The application temperature is restricted to 50 C at higher concentrations.
FIG. 1 SODIUM HYDROXIDE wt % NaOH
C pH10 pH11 pH12 pH13 pH14 120
110
100
90
80
70
60
0.2
50
0.1
0.0001 0.001 0.01 0.1 0.5 1 5 10 20
FIG. 3 SODIUM CARBONATE wt % Na2CO3
C pH10 120
pH11
pH12
110
100
90
80
70
0.2
60
0.1
50
0.001 0.01
0.1 0.5 1
5 10 20
Dark-blue curve: chemical effect of acids on Pfaudler WWG does not exeed 0.1 mm/a thickness loss.
Light-blue curve: represents the 0.2 mm/a curve and shows the resistance capacity of Pfaudler WWG with regard to acreases in temperature.
Cian squares: indicate the increasing enamel durability with regard to non-inhibited acids.
Completely resistant VL 0.1 mm/a Limited resistance when subject to brief chemica stress VL= 0.1 ... 0.2 mm/a
FIG. 2 POTASSIUM HYDROXIDE wt % KOH
C pH10 pH11 pH12 pH13 pH14 120
110
100
90
80
70
60
0.2
50
0.1
0.0001 0.001 0.01 0.1 0.5 1 5 10 20
FIG. 4 AMMONIA wt % NH2
C
pH10 pH11
120
0.2
110
0.1
100
90
80
70
60
50
pH12 pH13
0.001 0.01 0.1 0.5 1
5 10 20
9
Worldwide Presence
MEXICO
USA
UK FRANCE
NETHERLANDS
GERMANY SWITZERLAND
ITALY
INDIA
SOUTH KOREA CHINA
SINGAPORE
BRAZIL
GMM Pfaudler is a global leader in corrosion-resistant technologies, systems, and services for the chemical, pharmaceutical, food and energy industry. Our Branded Product Lines that include PFAUDLER, NORMAG, MAVAG, MIXION, INTERSEAL, EQUILLOY, EDLON and HYDROAIR showcase our strength as a group, our capabilities, and our pursuit for constant innovation. With an end-to-end solutionsoriented approach, a global footprint, and a perfectly integrated offering system we are able to meet complex industry demands worldwide. GMM Pfaudler is driven by 1800+ individuals across 4 continents and 16 global manufacturing facilities around the world. The Group's targeted investments in strategic markets, innovation and competitiveness paves the way forward for GMM Pfaudler's continued legacy.
80+ Countries 1800+
Employees
04 Continents
Our Global Contacts
Europe
Germany
Italy France United Kingdom Benelux Switzerland Rest of Europe
Americas USA
Mexico Brazil Rest of Americas
a r Waghdusel
I Ilmenau Hofheim-Wallau
Torre di Mosto Merlino
Schiltigheim . Dardilly
Bolton Leven
Tilburg
Neunkirch
~pfaudler.com pfaudler.com pfaudler.com
~pfaudler.com pfaudler.com
~pfaudler.com
~
pfaudler.com
~pfaudler.com ~pfaudler.com
~pfaudler.com
~
@pfaudler.com
~
pfaudler.com
Rochester-NY Avondale-PA
Houston-TX Americus (GA)
Mexico City
. Taubat
~pfaudler.com ~@pfaudler.com
pfaudler.com ~pfaudler.com
~pfaudler.com
~pfaudler.com
pfaudler.com
ASia
China India
Singapore Korea Rest of Asia-Pacific
Li Yang . Beijing
al Karamsad RI Hyderabad Ea Ahmedabad
. Mumbai Delhi-NCR
. Singapore
. Suncheon Si
. Manufacturing Facilities
Sales & Services Organization
~pfaudler.com pfaudler.com
@pfaudler.com @pfaudler.com @pfaudler.com
~@pfaudler.com ~pfaudler.com
pfaudler.com
www.gmmpfaudler.com 616 - 7E | 05/2023