B12
Single seal, balanced, independent from the direction of rotation, multi-spring.
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BC
Single seal, balanced, multi-spring, cartridge design – easy assembly and disassembly of the seal, heat removal from the gland space – cooling system acc. to API 610 Plan 23, vibration resistant – elastic support of the stationary ring, solid slide rings - resistant to thermal deformations, acceptable shaft axial displacement ±3 mm (in special embodiments ±6 mm), period of trouble-free service > 40,000 hours.
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BD
Cartridge design – easy assembly and disassembly of the seal, vibration resistant – elastic support of the stationary ring, solid slide rings - resistant to thermal deformations, acceptable shaft axial displacement ±2 mm (in special embodiments ±6 mm), period of trouble-free service > 40,000 hours, diameter range 40¸ 220 mm, seal construction adapted to work - depending on operating conditions - with or without cooling system.
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BE2
Single seal, compact design, balanced, independent from the direction of rotation, multi-spring.
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BED
Double seal, compact design, balanced, independent from the direction of rotation, multi-spring. The seal requires application of buffer or barrier liquid installation.
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BEH
Double seal, compact design, balanced, direction of rotation-dependent, multi-spring. The seal forces the flow of buffer liquid.
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BEQ
Single seal. Compact design. Balanced. Independent from the direction of rotation. Multi-spring.
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BP
Single seal, cartridge design, balanced, independent from the direction of rotation, multi-spring. The seal acc. to EN ISO 21049 (API 682): type A, category 2 or 3, arrangement 1, configuration 1CW-FL (with a floating carbon throttle bushing).
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BPD
Double seal, cartridge design, balanced, direction of rotation-dependent, multi-spring. BPD seal requires application of buffer or barrier liquid installation. The seal acc. to EN ISO 21049 (API 682): type A, category 2 or 3, arrangement 2 or 3, configuration 2CW-CW or 3CW-FB.
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BU
Single seal, cartridge design, independent from the direction of rotation, multi-spring. The seal acc. to EN ISO 21049 (API 682): type A, category 2 or 3, arrangement 1, configuration 1CW-FL (with a floating carbon throttle bushing).
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BUV
Double seal, cartridge design, direction of rotation-dependent, multi-spring. BPD seal requires application of buffer or barrier liquid installation. The seal acc. to EN ISO 21049 (API 682): type A, category 2 or 3, arrangement 2 or 3, configuration 2CW-CW or 3CW-FB.
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