VALQUA, LTD.

Details Mechanical Seal

Style No.	Pressure Limit	Temperature Limit	Production Limit	Application
EVUM EOUM	1.18MPa {12kgf/cm²}	250	E series φ20～φ110mm R series φ20～φ160mm	Low-pressure balanced type standard mechanical seal. Used as seal for low/medium/high speed rotation, for volute pumps, geared pumps, and centrifuges.
EVBM EOBM	2.94MPa {30kgf/cm²}	200	E series φ20～φ110mm R series φ20～φ160mm	Medium-pressure balanced type standard mechanical seal. Used as seal for low/medium/high speed rotation, for single- and multi-stage volute pumps and general equipment.
HEVBM	2.45～3.92MPa {25～40kgf/cm²}	250	φ20～φ110mm	High-pressure balanced type standard mechanical seal. Used as seal for high-pressure low/medium/high speed rotation, for boiler-feed-water pumps, high-pressure circulating pumps, etc.
VDM	1.18MPa {12kgf/cm²}	300	φ20～φ90mm	Low-pressure unbalanced type double-seal mechanical seal. Used as seal for volute pumps handling slurry-containing liquid, solidifying liquid, hazardous material, etc.
BSBN	1.18MPa {12kgf/cm²}	300	φ20～φ70mm	Low-pressure balanced type mechanical seal employing welded- metal bellows. Used as seal for low/medium/high speed pumps and centrifuges, handling heat carrier oil and liquefied gases.
DOUN	0.2MPa {2kgf/cm²}	150	φ35～φ150mm	Low-pressure and low-speed mechanical seal using diaphragm. Used as seal for long horizontal mixers, screw feeder s, dryers, washers, dyeing machines, etc. handling liquid, gas, and powder. Axial runout: max. 3 mm Eccentricity: max. 1 mm Perpendicularity: max. 1.5 mm
PDOUN	0.05MPa {0.5kgf/cm²}	150	φ30～φ145mm