Flow heater ERH 4600 RF
The reference class for oil/emulsion
Service Hotline
+ 49 (0) 8141 – 22866-980
product data sheet ERH 4600 RF
Description
The series 4600 heaters feature design characteristics which make these units unrivalled on the market.
The high variability of the design allows a perfect adaption to any process conditions. Thousands of these
heaters are in service on ships, in power stations or industrial applications all over the world.
Design
The series 4600 heaters consist of a welded pressure vessel with an electric heating insert. The heating elements
are positioned in protection tubes and are not in direct contact with the medium. They can be exchanged without
draining and opening the pressure vessel. The design of the heating elements ensure excellent thermal reaction
time and control accuracy.
Electrics
Due to the flexible design, the heating elements can be adapted to any operating voltage between 230 VAC
and 690 VAC.
Operating pressure
6 bar in standard design/10 bar in HP design
Operating temperature
Max. 150 °C
Heat transfer
Due to the perfect hydraulic flow around the heating elements, the medium is gently heated to the specified
temperature. The surface load (W/cm2) can be precisely adapted to the medium characteristics. Recommended
surface loads:
0,8 W/cm2
lube oil/low flow rate of medium
1,1 W/cm2
high viscosity heavy fuel oils and average flow rate of medium
1,4 W/cm2
marine diesel fuels, light diesel fuels and high flow rate of medium
Material
The pressure vessel and the heating insert with the protection tubes for the heating elements can be made of any
material to suit the application. By standard and with short delivery times: P265GH (mild steel) and 1.4571 (stainless
steel). Other materials are available on request.
Controls (ELWA)
The majority of our heaters are delivered with ELWA control cabinets specially designed for the specific applications.
The heating steps can be controlled either with mechanical or electronic temperature controllers. The power is then
switched with conventional contactors, solid state relays or thyristor controllers. Please see data sheets for ELWA
ETU/ELWA SPC/ELWA STC. The control cabinets can either be mounted directly on the heaters or can be installed
separately.
Typical applications
The series 4600 heaters are the perfect choice for heating fluids like fuel oils (MGO/HFO), lubrication oils or
emulsions.
ERH 4600 RF 1/3
product data sheet ERH 4600 RF
Safety
All heaters are equipped with built in safety temperature limiters (STB). Optional additional safety devices: flow
switch, temperature limiter (self reset), PT-100 sensors and safety valves.
Thermal insulation
The heaters come with an efficient thermal insulation made of rockwool and galvanised steel sheet cover.
The cover is also available made of stainless steel (polished upon request).
Painting
Heavy duty industrial painting with 2K structured PUR paint
Process connections
Standard: Flanges according to DIN EN 1092-1/11B1/DN15-DN250/PN16
Optional: Triclamp or threaded connections
The position of the connections can be adapted on request.
Classifications
ABS, BV, DNV, CCS, GL, LRS, RINA, TÜV, MRS, others on request
ERH 4600 RF 2/3
product data sheet ERH 4600 RF
Overview table
Nozzle size
Type
heating power (kW)
heating steps (kW)
Min
Norm
Max
4603RF-V
3
4
5
1x3
1x4
1x5
25
32
40
4606RF-V
6
8
10
2x3
2x4
2x5
25
32
50
4609RF-V
9
12
15
3x3
3x4
3x5
25
32
50
4612RF-V
12
16
20
2x6
2x8
2x10
25
32
80
4620RF-V
16
20
24
2x8
2x10
2x12
25
32
80
4624RF
18
24
30
3x6
3x8
3x10
25
32
80
4624RF-V
24
30
36
3x8
3x10
3x12
25
32
80
4636RF
27
36
45
3x9
3x12
3x15
25
40
80
4636RF-V
36
45
54
3x12
3x15
3x18
25
40
80
4648RF-V
48
60
72
4x12
4x15
4x18
25
40
100
4660RF-V
60
75
90
5x12
5x15
5x18
25
50
100
4672RF-V
72
90
108
6x12
6x15
6x18
25
50
125
4696RF-V
96
120
144
8x12
8x15
8x18
25
65
125
46128RF-V
128
160
192
8x16
8x 20
8x 24
25
65
150
46152RF-V
152
190
228
12+7x20
15+7x25
18+7x30
25
65
150
surface load
0,8
1,1
1,4
0,8
1,1
1,4
W/cm²
Complementary products
smart.power.control
Control box with heating steps and step-less control of a part of the heating power with our
intelligent ELWA SPC control unit and solid state relays
smart.thyristor.control
smart.thyristor.control
Control box with fully step-less regulation of the heating capacity using ELWA STC control
electronic.viscosity.measurement
smart.thyristor.control
Inline unit to measure the viscosity of the heated fluid
Service Hotline
+ 49 (0) 8141 – 22866-980
ERH 4600 RF 3/3