Mechanical Seal TR6D-T

Mechanical Seals API 682 4° Edition





Dual cartridge seal in compliance with standard API 682 4th edition in face-to-back
The balanced dual cartridge solution is ideal for arrangement 2 and 3 or with auxiliary
fluid at atmospheric pressure (buffer) TR6T or pressurised (barrier) TR6D. The two
versions are particularly suitable for toxic or polluting fluids that crystallize when in
contact with the atmosphere or in case of no external washing; the rotary bellows
prevents the problem of spring and dynamic O-ring packing and tolerates axial and
radial movements.

20 – 110 (mm)0 – 23 (m/sec)0 – 40 (bar g)-60 – 176 (°C)
(*) for measurements in inches, please contact our technical sales office.

• Standard solution resulting from tested designs and made in compliance with
standard API 682 4th edition
• Balanced dual cartridge solution suitable for arrangement 2 and 3
• Rotary metal bellows and flange with fixed bushing
• Uniform distribution system of multipoint injection flushing on the product side seal
• The bellows solution in Category 2, with O-rings as secondary gaskets
• Efficient circulation device of the auxiliary liquid
• Connection for flushing or vent and in-out for auxiliary liquid
• Possibility of sizing the shaft flange and sleeve according to customer request
• Recommended for API horizontal and vertical pumps


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