Flowserve 682 User Manual
682 Seal Cooler
Experience In Motion
New generation seal cooler to meet and
exceed the seal cooler requirements stated
in the 4th Edition of API Standard 682
Installation
Operation
Maintenance
Description
The 682 Seal Cooler was designed as a new generation seal cooler to meet and
exceed the seal cooler requirements stated in the First Edition of API Standard
682. These requirements address the primary specications of the seal coolers that should be used in conjunction with mechanical seals. A secondary goal
was to eliminate the fouling and corrosion problems inherent with typical seal
cooler designs. With release of the Fourth Edition of API Standard 682, the
requirements for this size of seal cooler are basically the same except that the
cooling coil material must now be 316 instead of 304. The standard material has
been upgraded to 316, allowing the 682 Seal Cooler to continue meeting the
requirements of API Standard 682. The following is a brief summary of the major
requirements specied for Fourth Edition “Seal Flush Coolers”:
• Seal ush coolers should not be sized for less than a 8 l / min (2 gpm)
ush ow per seal.
• The seal ush uid should be on the tube side and the cooling water on
the shell side.
• When required, seal ush coolers should be designed, fabricated, and
inspected according to ASME B31.3 using piping components.
• The tubes should be ¾ inch diameter with 0.095 inch minimum wall
thickness.
• The tubes should be 316 austenitic stainless steel and the shell should
be carbon steel.
• The seal cooler should allow complete draining and venting of both the
water and process sides.
• Meets and exceeds API Standard 682 design requirements.
Design Features Figure 1
cover
outer shell
tting
The images of parts shown in these instructions may differ visually from the actual
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parts due to manufacturing processes that do not affect the part function or quality.
inner shell
bafebafebafe
cover
inner cooling
coil tubing
outer cooling
coil tubing
• Contains 300 Series Stainless Steel for all wetted parts to provide superior
corrosion resistance.
• Disassembles Easily without damaging the cooling coils for cleaning to
prevent scaling and cooler fouling from reducing operating efciencies.
• Contains Seamless Cooling Coil Tubing separated by bafes that channel
the cooling water ow to prevent it from bypassing any of the cooling coils
and to provide the highest efciency.
• Allows Complete Drainage and Venting of both the tube and shell side uids
to prevent vapor lock conditions and ensure the highest efciency.
• Can be congured for Series or Parallel Tube Flow to provide the cooling
characteristics needed.
• Available with an ASME Section VIII, Division 1 “U” Stamp for applications
where the equipment must be rated and veried as meeting the ASME
design requirements for pressure vessels.
• Provides Explosion Resistance through a pressure relief feature that
prevents the internal pressure from exceeding the allowable working
pressure of the inner and outer shells.
Product Specications
Standard Materials:
• O-rings Fluoroelastomer
• Tubing 316 Stainless Steel
• Fittings 316 Stainless Steel
• Shell and Covers 304 Stainless Steel
Technical Data:
• Cooling Coil Tube OD 19 mm (0.750 inch)
• Cooling Coil Tube Wall Thickness 2.4 mm (0.095 inch)
• Effective Cooling Area 0.51 m 2 (5.50 ft 2)
• Shell (Coolant) Flow Rate 24.6 to 75.7 l / min (6.5 to 20 gpm)
• Tube (Product) Flow Rate 7.6 to 37.9 l / min (2 to 10 gpm)
• Unit Weight (Empty) 62.1 kg (137 lbs)
• Maximum Temperature (Tube Side) 371°C (700°F )
• Maximum Temperature (Shell Side) 93°C (200°F), Canada 65°C (200°F)
• Max. Working Pressure (Tube Side) 255 Bar @ 371°C
(3,700 psig @ 700°F)
• Max. Working Pressure ( Shell Side ) 14.5 Bar @ 93°C (210 psig @ 200°F)
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