Customization: | Available |
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Structure: | Single End |
Pressure: | High Pressure Mechanical Seals |
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(1)Features
With the EagleBurgman DRU system it is
possible to supply barrier fluid to double
and tandem mechanical seals for a broad
range of applications. Pressure boosters
are equipped as standard with all the
necessary system connections and brackets.
System components can thus be installed
to suit all requirements. The maximum
operating pressure of 63 bar applies to the
housing of the pressure booster, i.e. the
process/medium pressure at the connection
must be lower and is conditional on the
transmission ratio:
DRU2063/A001 up to 57 bar
DRU2063/A002 up to 42 bar
Circulation in accordance with API 682/
ISO 21 049: Plan 53C
(2)Advantages
• Automatic setting of the barrier pressure via reference pressure: simple and reliable mode of operation
• Safe operation even in case of pressure changes
• Barrier pressure is created without any need for connection to a nitrogen supply
• Housing is easy to dismantle: all parts are readily accessible for cleaning
• Protective pipe for piston rod made of borosilicate glass: optimum level monitoring
• Sockets with recessed gasket: no contamination of the circuit by thread sealant
• Modular system: combination with a wide range of system components possible
(3)Functional description
The function of the DRU system is similar
in principle to the TS system. The difference
is that the barrier pressure is created by the
reference pressure without any additional
superimposition of nitrogen. The pressure
booster is for storing and cooling the barrier
fluid. Pressurization is by means of a piston
in dependency on the process/medium
pressure. Automatic pressure increase in
accordance with the transmission ratio.
(4)Standards and approvals
• PED 97/23 EC (Design and production in accordance with EU Pressure Equipment Directive)
• ASME VIII, Div. 1 (Design, calculation and production)
(5)Recommended applications
• Refining technology
• Oil and gas industry
• Chemical industry
• Petrochemical industry
(6)Item Description
A Barrier medium IN (G1/2")
connection possible for SPI2063
B Barrier medium OUT (G1/2")
C Process medium (G1/2")
D Coolant IN (tube 15 x 1.5)
E Coolant OUT (tube 15 x 1.5)
F Connection for SPN (G1/8")
The DRU pressure booster must always
be installed higher than the mechanical
seal. The barrier fluid flows via the return
pipe into the vessel and is cooled. The
exchange of fluid takes place by the
thermosiphon principle or by forced
circulation, e.g. with a pumping screw.
Connection pipes to the seal should be
designed with as little resistance as
possible.
Designation | DRU2063/A001 | DRU2063/A002 | DRU2063/A101 | DRU2063/A102 |
Pressure Equipment Directive | PED | PED | ASME | ASME |
Integrated cooling coil | √ | √ | √ | √ |
Transmission ratio | 1:1.1 | 1:1.5 | 1:1.1 | 1:1.5 |
Volume, jacket (liters) | 4 | 4 | 4 | 4 |
Volume, cooling coil (liters) | 0.7 | 0.7 | 0.7 | 0.7 |
Allowable pressure1) | 63 bar (913 PSI) |
63 bar (913 PSI) |
63 bar (913 PSI) |
63 bar (913 PSI) |
Allowable process/medium pressure at connections C1) |
57 bar (827 PSI) |
42 bar (609 PSI) |
57 bar (827 PSI) |
42 bar (609 PSI) |
Allowable temperature1) | -60 °C ... +200 °C (-76 °F ... +392 °F) |
-60 °C ... +200 °C (-76 °F ... +392 °F) |
-60 °C ... +200 °C (-76 °F ... +392 °F) |
-60 °C ... +200 °C (-76 °F ... +392 °F) |
Working volume, MAX-MIN (liters) | 2 | 1.5 | 2 | 1.5 |
Cooling capacity - without cooling water (kW)3) | 0.5 | 0.5 | 0.5 | 0.5 |
Cooling capacity - natural circulation (kW)2) | 1.5 | 1.5 | 1.5 | 1.5 |
Cooling capacity - forced circulation (kW)2) | 4 | 4 | 4 | 4 |
Required cooling water quantity (m3/h) | 0.4 | 0.4 | 0.4 | 0.4 |
Metal parts | 1.4571 | 1.4571 | 1.4571 | 1.4571 |
Protective tube for piston rod | Borosilicate | Borosilicate | Borosilicate | Borosilicate |
Seal | PTFE | PTFE | PTFE | PTFE |
Net weight (approx.) | 51 kg (112 lb) |
51 kg (112 lb) |
51 kg (112 lb) |
51 kg (112 lb) |
Other versions on request. 1) Design data, permissible working values depend on the actual conditions of service 2) Guidelines with barrier fluid water 60 °C - cooling water 20 °C 3) Guidelines with barrier fluid water 60 °C - ambient temperature 20 °C (valid for pressure booster systems without cooling water with natural circulation resp. forced circulation) |
We have large stock, so our delivery is very fast.
For example,if products are standarded, the delivery time is one week.
Our company and factory addrss: Ningbo City, Zhejiang Province,China.
Our city has a large port and an airport, so its transportation is very convenient.
Question1: What are the prices of your products?
Answer: For each model, the unit price is listed on the website, but what is displayed on the website is only the average market price. For specific models, you can contact us for further consultation and negotiation.
Question 2: Are you a factory or a trade company?
Answer: We are a factory with top sales for the trade service.
Question 3: What is the minimum order quantity for each order?
Answer: For products of regular models, the minimum order quantity is at least five. We welcome you to test the quality of our products and services through placing trial orders. Looking forward to the long-term cooperation with you.
Question4: What is your company's service tenet?
Answer: Quality first, service upmost. We promises that if there is any problem with the quality of the product, or if the product is damaged during the transportation, our company will be responsible for compensation, regardless of the ordder turnover value.
Question5: Can I try to get a SAMPLE before the order?
Answer: Sure. Our company will provide you with samples for free, but you will have to pay for the international delivery (freight collect payment).