Exemplary: Successful for our customers worldwide

Pressure filter strainer (KHS) made from Hastelloy and steel, for drying various intermediate products at Chemie AG Bitterfeld-Wolfen, Multi-Purpose Center.

• Temperature: t = -10 °C ... +200 °C (+14 °F … +392 °F)
• Pressure: p1 = -1 ... 6 bar (-15 … 87 PSI)
• Rotational speed: n = 5 ... 6 min^-1
• Seal: EagleBurgmann HSMR35AL-D/170
• Barrier fluid system: thermosiphon system API Plan 53
• Barrier medium: white mineral oil

EagleBurgmann AGSR3L-D gas-lubricated agitator seals in vacuum paddle dryers for liquid crystal manufacturing at Merck KGaA in Darmstadt, Germany. The process medium - organic crystalline substances in various solvents such as toluene and methanol - has a pronounced tendency to form deposits, so a patented flushing process is used upstream of the dynamic sealing element on the product side to protect the seal and to improve the cleaning efficancy. An EagleBurgmann GSS4012 is used as the barrier and flushing gas system.

At GlaxoSmithKline in Singapore, four fermenters were converted to EagleBurgmann DF-MR333S1L-D double mechanical seals with DiamondFace coating. This proved necessary after process-related problems caused insufficient lubrication, dry running and failure of the original seals. With the extremely hard and wear-resistant diamond coating of the sliding faces, significantly longer MTBFs are now being achieved.

Pressure: p1 (max.) = 1 barg (15 PSIG), p3 (max.) = 5 barg (73 PSIG), rotational speed: n = 700 min^-1.

A paddle dryer from a Dutch manufacturer is deployed by a French operator in a TDI (toluene diisocyanate) facility. After repeated failure of the original competitor seals, the dryer was successfully converted to Espey WKA30 carbon floating ring seals. This reliably prevents the egress of gaseous leakage to the atmosphere. The seal is designed to prevent any contamination of the process with barrier gas.

Temperature: t = +110 °C (+230 °F), pressure: p = 1.05 bar (15.2 PSI), Rotational speed: n = 45 min^-1), barrier gas: nitrogen.

A Korean chemical company seals its Bühler GmbH bead mills for paint production with EagleBurgmann MR1S1F-D24 mechanical seals. The process medium - colored pigments with various solvents - is very abrasive.

Sealing of polymerization reactors with an EagleBurgmann HSMR5L-D in the manufacture of synthetic rubber at Lanxess Deutschland GmbH. The process medium - monomers, water and polymers - has a tendency to bond. So flushing is used to protect the seal. An EagleBurgmann SPA4025 barrier pressure system is used as the supply system.

Paddle-wheel driers (Lipp Mischtechnik), frequency-controlled, for producing and drying salicylic acid at Rhodia Syntec.

• Medium: salicylic acid, various aromatics
• Temperature: t = +40 °C ... +220 °C (+104 °F … +428 °F)
• Pressure: p = -1 ... 11 bar (-15 … 160 PSI)
• Rotational speed: n = 8 ... 80 min-1
• Seals: EagleBurgmann HSMR1AL-D/180 for side entry, one seal on both the drive and non-drive end
• Barrier fluid system: thermosiphon system
• Barrier pressure: API Plan 53 with circulating pump

Glass-lined stirred-vessel reactor (EHW Thale) with top entry drive for manufacturing various intermediate products for the pharmaceutical industry, for example. Used at Chemie AG Bitterfeld-Wolfen, Multi Purpose Center.

• Temperature: t = -10 °C ... +200 °C (+14 °F … +392 °F)
• Pressure: p1 = -1 ... 6 bar (-15 … 87 PSI)
• Rotational speed: n = 30 ... 100 min^-1
• Seal: EagleBurgmann M461KL-D20/100
• Barrier fluid system: EagleBurgmann TS1016/A007 API Plan 53
• Barrier medium: white mineral oil

EagleBurgmann SMAK sterile coupling in use as frequency-regulated bottom entry drive with rotational speed monitoring for agitator vessels used in pharmaceutical production at SANOFI in France. All metal surfaces in contact with the product are polished with a roughness of <0.4 μm; the elastomers are FDA conform.

Production of dispersions at BASF Ludwigshafen. Stainless steel vessel with top entry agitator.

• Medium: dispersions
• Temperature: t₁ = +50 °C (+122 °F)
• Pressure: p1 = 0 ... 3 bar (44 PSI)
• Rotational speed: n = 0 ... 30 min^-1
• Seal: EagleBurgmann M451KL-D20/200
• Barrier fluid system: EagleBurgmann SPA2020/A40
• Barrier medium: glycol
• Barrier pressure: p₃ = 5 bar (73 PSI)

Plastic production at BASF Ludwigshafen. Stainless steel vessel with top entry agitator.

• Medium: pre-product for plastics production
• Temperature t₁ = +120 °C (+248 °F)
• Pressure p₁ = 4 bar (58 PSI)
• Rotational speed: n = 147 min^-1
• Seal: EagleBurgmann M451KL-D21/80 with resublimation barrier with permanent flow of demineralized water
• Barrier fluid system: EagleBurgmann TS1016/A007
• Barrier medium: glycol/water
• Barrier pressure p₃ = 6 bar (87 PSI)

Top entry stirred-tank reactor (Chema) in the HAS system at DOMO Caproleuna.

• Medium: hydroxylammonium sulfate (HAS)
• Temperature: t = max. +200 °C (+392 °F)
• Pressure: p₁ = 5 bar (73 PSI)
• Rotational speed: n = 150 min^-1
• Seal: EagleBurgmann M481KL-D
• Barrier fluid system: EagleBurgmann TS1016
• Barrier medium: Deionate (demineralized water)
• Barrier pressure: 7 bar (102 PSI)

Glass-lined polymerization reactor (Ekato) for producing ion exchanger granules at Lanxess Bitterfeld, Energizing Chemistry.

• Medium: styrene copolymer, aromatics
• Temperature: t = +20 °C ... +150 °C (+68 °F … +302 °F)
• Pressure: p₁ = 0 ... 3 bar (44 PSI)
• Rotational speed: n = 15 ... 50 min-1
• Seal: EagleBurgmann M481KL-D21/140, polymerization barrier
• Barrier fluid system: EagleBurgmann TS2000/M226-D1
• Barrier medium: white mineral oil
• Barrier pressure: API Plan 53. ATEX zone 1.

Animal feed enzyme production at BASF Ludwigshafen, Germany. Stainless steel vessel with top entry agitator with EagleBurgmann SeccoMix1.

Medium: aqueous solution, temperature t1 = +5 °C ... +15 °C (+41 °F … +59 °F), pressure p1 = unpressurized, rotational speed: n = ... 45 min^-1.

Paddle-wheel dryers (Lödige) for drying active ingredients for the pharmaceutical industry. Operator: Chemische Fabrik Berg.

• Medium: active ingredients for the pharmaceutical industry
• Temperature: t = +100 °C (+212 °F)
• Pressure: p = vacuum ... 0 bar
• Rotational speed: n = 32 min^-1
• Seal: EagleBurgmann HSMR5S1-D2/120 for side entry, one seal on both the drive and non-drive end
• Barrier fluid system: EagleBurgmann TS1016 with SPU5000, Plan 53
• Barrier medium: white mineral oil

A paddle dryer is used in the manufacturing of colors and pigments at BASF Colors & Effects GmbH in Ludwigshafen. The shaft is reliably sealed by an EagleBurgmann 9984 packing cartridge. To compensate for any thermal expansion, the unit is equipped without an integrated metal expansion joint, while a life-load springs for the packing rings ensures long maintenance intervals without tightening of the packing. The packing unit is supplied with flushing medium and buffered with nitrogen with reference to TA-Luft and in order to fulfil the ATEX requirements.

• Shaft diameter: d = 260 mm (10.24")
• Temperature: t = +140 °C (+284 °F)
• Pressure: p = min 20 mbara (0.29 PSIA), max 5 bara (73 PSI)
• Rotational speed: n = 6 min^-1
• Medium: p-xylene, water, sodium hydroxide, salt of tetrachlorophthalic acid, pigments
• Flushing medium: p-xylene
• Barrier medium: nitrogen.

In Zhuhai, China, BP operates a PTA facility from SPX Flow Technology. The reactors and crystallizers were equipped by EagleBurgmann with 13 EagleBurgmann HSH high pressure mechanical seals with supply systems. These include the largest agitator seal to date, weighing in at 1,500 kg. These cartridge-type double seals with integral bearing are balanced, self-closing and equipped with cooling flanges and houses. Parts in contact with the product are made from special titanium alloys as the acetic acid used in the process is highly corrosive. The seals are supplied by EagleBurgmann DRU systems with external coolers.

Shaft diameter: d = 100 … 480 mm (3.94” … 18.90”), temperature: t = … +270 °C (+518 °F), pressure: p = … 50 bar (725 PSI).

Wacker Chemie AG in Burghausen, Germany, seals a number of top entry high pressure reactors for polymer dispersion manufacturing with EagleBurgmann HSHLV-D high pressure seals with cooling flange. A shared barrier fluid system supplies all the seals.

Temperature: t = … +100 °C (+212 °F), pressure: p₁ = vacuum … 100 bar (1,450 PSI), rotational speed: n = 25 … 100 min^-1.