Spring mechanical seal BT-PN

bellowsfor pumpmetal

Rubber bellows mechanical seals Unbalanced Single spring Independent of direction of rotation Advantages The BT-PN is a large series mechanical seal with a simple yet effective design that is easy to assemble. The special spring arrangement allows a short axial installation length. This advantage is combined with an increased working pressure capability of up to 12 bar (174 PSI). The spring is free from torque transmission. Operating range Shaft diameter: d1* = 8 … 40 mm (0.31" … 1.57") Sliding velocity: vg = 10 m/s (33 ft/s) Operating limits depend on p・vg factor * Other diameters upon request ** Dependent on medium, size and material Materials Seal face: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B), Silicon carbide (Q1, Q6) Seat: Aluminium oxide (V), Steatite (X), Silicon carbide (Q1, Q6, Q7) Elastomers: NBR (P), FKM (V), EPDM (E) Metal parts: CrNi steel 1.4301 (F), CrNiMo steel 1.4401 (G) Standards and approvals KTW W270 ACS WRAS NSF FDA DM 174/04 Recommended applications Food and beverage industry Water and waste water technology Pool and spa applications Household appliances Submersible oil filled motors (4" / 6") Submersible pumps, back-to-back installation Peripheral pumps for industrial applications Domestic and garden pumps Coffee machines Shower pumps