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Burgman Germany
/ HRC N Burgmann mechanical seals
HRC N Burgmann mechanical seals
HRC N
Features
Cartridge
Balanced
Also Independent of direction of rotation
Stationary multiple springs
Also Spring protection sleeve
Variant for operation with pressureless quench available (HRC2000N)
Dual seal with and also without pumping screw (HRC3300NF, HRC3300N) available
Advantages
Insensitive to solids containing media. Solids content 40 % (single seal), 60 % (double seal)
Springs protected from product and also leakage
Variant with short installation length to meet limited space conditions (HRC1100N)
Dual seal remains closed in case of barrier pressure failure, also self-closing at pressure reversal (HRC3300NF)
Operation under vacuum without seat locking possible
No damage of the shaft by dynamically loaded O-Ring
Also Insensitive to shaft deflections due to stationary design
Operating range
Shaft diameter:
d10 = 30 … 60 mm (1.181″… 2.362″)
Pressure: p1 = 23 bar (334 PSI)
Temperature:
t = -20 °C … +160 (200*) °C
(-4 °F … +320 (382*) °F)
Sliding velocity: vg = 20 m/s (66 ft)
Axial movement: ±1.0 mm* Due to shrinking
HRC N Materials
Seal face: Silicon carbide (Q1, Q2)
Seat: Carbon graphite antimony impregnated (A),also Silicon carbide (Q1, Q2)
Standards and approvals
DIN 24960 C
Recommended applications
Chemical industry
Process industry
Petrochemical industry
Mining industry
Sugar industry
Dirty, abrasive and also solids containing media
Various chemical processes
Also Chemical standard pumps
Download catalog for more information:
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