RJWBT-AR
Mechanical seals for pumps
Features
- Rubber bellows mechanical seals
- Unbalanced
- Single spring
- Independent of direction of rotation
Recommended applications
- Water and waste water technology
- Pool and spa applications
- Household appliances
- Domestic and garden pumps
- Whirlpool and swimming pool pumps
- Dishwasher pumps
- Submersible motors / pumps
- Water pumps / waste water pumps
Standards and approvals
- UBA(KTW)
- W270
- ACS
- WRAS
- NSF
- DM 174/04
- FDA
Materials
- Seal face: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B), Carbon graphite, full carbon (B3), Silicon carbide (Q1, Q6), Tungsten carbide (U), PTFE glass fiber reinforced (Y)
- Seat: Steatite (X), Aluminium oxide (V, V1), Silicon carbide (Q1, Q6, Q7), Tungsten carbide (U), Cr steel (E), CrNi steel (F), CrNiMo steel (G)
- Temperature: t* = -20 °C … +120 °C (-4 °F … +248 °F)
- Sliding velocity: vg = 10 m/s (33 ft/s)
Operating range
- Shaft diameter: d1 = 6 … 70 mm (0.24" … 2.76")
- Pressure: p1* = 6 bar (87 PSI), vacuum … 0.5 bar (7.45 PSI) up to 1 bar (14.5 PSI) with seat locking
- Temperature: t = -40 … 220° C ( -40 … 428° F)
- Sliding velocity: vg = 20 m/s (66 ft/s)
* Dependent on medium, size and material
Advantages
- Mechanical seal for large-series cold water pumps, produced in millions of units per year.
- The BT-AR owes its success to the wide range of application, the short axial length (this allows for more economic pump construction and saves material), and the best quality/price ratio.
- The elasticity of the bellows design enables a more robust operation.
- The BT-AR can also be used as a multiple seal in tandem or back-to-back arrangement when the product media cannot ensure lubrication, or when sealing media with a higher solids content. Installation proposals can be provided upon request.