Flowserve 682 Seal Cooler - Manual (Page 2)

Design Features Figure 1
2
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 specifications of the seal cool-
ers 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 specified for Fourth Edition “Seal Flush Coolers”:
• Seal flush coolers should not be sized for less than a 8 l / min (2 gpm)
flush flow per seal.
• The seal flush fluid should be on the tube side and the cooling water on
the shell side.
• When required, seal flush 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.
The images of parts shown in these instructions may differ visually from the actual
parts due to manufacturing processes that do not affect the part function or quality.
cover
fitting
outer shell
cover
baffle baffle baffle
inner shell
inner cooling
coil tubing
outer cooling
coil tubing