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| After-sales Service: | 1 Year for Machinery Warranty |
| Warranty: | 1 Year |
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Double tube heat exchanger is a type of tubular type heat exchanger. Double tube heat exchanger is a concentric tube connected by two standard different sizes tubes . The outer tube is called shell side, and the inner tube side is called tube side. Two different media can flow (or be in the same direction) in the shell side and tube side to achieve the effect of heat transfer.
It is widely used in petrochemical, refrigeration and other industrial sectors.
WORKING PARAMETERS
MAX. TEMP.:-110°ºC
MAX.PRESSURE:
The rate of heat transfer is dependent on the tubular heat exchanger configuration, temperature differential, size of tubes, turbulence in the flow and flow velocity.
It is possible to adapt the construction of a heat exchanger to obtain gigher working parameters.
| Type | External diameter of the product side |
External diameter of the shell side |
Connection size of the product side |
Connection size of the shell side option 1 |
Connection size of the shell side option II |
Heat exchange area 3M |
Heat exchange area 6M |
| mm | mm | M2 | M2 | ||||
| HEX-Tub 32/50 |
42.4 | 60.3 | DN32 | DN32 | 0.37 | 0.77 | |
| HEX-Tub 50/80 |
60.3 | 88.9 | DN50 | DN50 | 0.53 | 1.10 | |
| HEX-Tub 65/100 |
76.1 | 114.3 | DN65 | DN65 | DN80 | 0.67 | 1.39 |
| HEX-Tub 80/100 |
88.9 | 114.3 | DN80 | DN80 | DN80 | 0.78 | 1.62 |
| HEX-Tub 100/125 |
114.3 | 139.7 | DN100 | DN100 | DN100 | 1.00 | 2.08 |
| HEX-Tub 100/125 |
114.3 | 168.3 | DN100 | DN100 | DN125 | 1.00 | 2.08 |
| HEX-Tub 125/150 |
139.7 | 168.3 | DN125 | DN100 | DN125 | 1.23 | 2.54 |
| HEX-Tub 150/200 |
168.3 | 219.1 | DN150 | DN125 | DN150 | 1.48 | 3.07 |
| HEX-Tub 200/250 |
219.1 | 273 | DN200 | DN150 | DN200 | 1.93 | 3.99 |
Exemplary designation: HEX-Tub/50- 3M/12
HEX-Tub- Tube in Tube HE: 32/50- nominal diameter of inner/outer tube
3M- section length 3m
12- quantity of the sections
3M- section length 3 m
6M- section length 6 m
A single section is constructed with a smaller diameter tube (product side) installed inside a larger diameter tube (shell side).
Sanitary tube-in-tube heat exchanger with compact design and removable inner tube. Intended for heating processes (such as pasteurization, sterilization, UHT, etc.) or cooling of products with low-medium viscosity, without the risk of clogging.
1.We have passed the ISO9001 system certification, and all departments from technology, purchasing, production to inspection are well managed.
2. Each heat exchanger must be inspected and tested before leaving the factory.
3. If there is any damage or quality defect, we will respond 7D*24H at the first time. We will repair or recall according to the specific situation to maximize the protection of customers' interests.
Q1. What's the lead time?
35-50 working days depend on the order quantity.
Q2. How do you ship the goods?
We usually ship by sea in containers or flat rack.
Q3. Are you factory or trading company?
We are a manufacturer and export by ourselves.
Q4. Can your factory produce according to our samples or drawing?
Yes, we can do OEM and customization.
Q5. Do you supply door to door shipping?
Yes we do, Pretank do ocean shipping, customs clearance, import procedures and deliver products to the appointed place.
Q6. How do you guarantee this machine normally operating?
Every machine will be tested in our factory before shipping. We will adjust the machine to optimal effect before delivery. And spare is always available and free for you in warranty year.
Q7. Do you supply after-sale services?
Yes we do, if any defects occurred, Pretank would give instructions on how to handle, fast repair locally is available if needed.
Q8. What inspections will you do before delivery in your factory?
All heat exchanger will be tested by static pressure test, dye penetration or X-ray test if requested.
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