Description
Convex pump station impeller 130×12×41 mm (12 mm keyway fit)
The convex impeller (closed type) is the primary discharge component of self-priming centrifugal surface pumps and pump stations of the JET 100, XKJ, CAM series and analogs with power ratings from 0.75 to 1.3 kW. The impeller converts the rotational kinetic energy of the motor shaft into hydrodynamic pressure and centrifugal liquid head. This model features a characteristic conical (convex) protrusion at the base of the 80 mm diameter suction inlet, an increased vane stack height (12 mm), and an internal clearance between discs of 6 mm, which optimizes the hydraulic efficiency of the pump chamber.
Key Advantages and Features:
- Increased Performance (h=12/6 mm): The wider clearance between the discs (6 mm) with a total stack thickness of 12 mm ensures efficient flow of a larger volume of water per minute under standard motor load.
- Glass-filled Technopolymer (Noryl / PPO): High resistance to cavitation wear, thermal deformation (up to +60 °C), corrosion, and the hydro-abrasive effects of small suspended sand particles.
- Metal Keyway Sleeve: The 12 mm diameter mounting hole is reinforced with an embedded sleeve featuring a longitudinal keyway, preventing the impeller from spinning on the rotor shaft during starting water hammers.
- Precision Balancing: Factory calibration of the blade geometry eliminates radial runout, reducing vibration load on the mechanical seal and pump bearings.
Compatibility and Application:
Used in domestic surface self-priming pumps with cast iron and stainless steel pump housings (where dimensions 130×12×41 mm match):
- Karcher: BPP 3000/42 (1.645-289.0), BPP 4000/48, and similar station series.
- Aquatica (Leo): LKJ-1100SA5 (article 776254), 776233, 776331, 776332.
- Dnipro-M: JET-80A, JET-110A, JET-110ST.
- Werk: XKJ-1101, XKJ-1104, XKJ-1304, JSW-10M.
- Optima / Marina-Speroni: Optima JET 200, Marina CAM 88/22, CAM 88/22HL.
- JET 100 series from other manufacturers: Maxima JY100A, Watomo SILVER 100 CF, Rona JET 100, Forwater JET 100S, Dnepr-2 JET100, UNIPUMP AUTO JET 100L (750 W), Ocean Jet 80, GENERAL PUMP GP J-1300, KENLE JS 1100, FAIRLINE FWW 1100, Taifu SGJ800, AquaTechnica Standard 81-24, Delfin, Tatra, ELPUMPS, etc.
Technical Specifications:
| Parameter | Value / Characteristic |
|---|---|
| Component type | Pump impeller (closed type) |
| Disc shape | Convex (conical protrusion at the suction inlet) |
| Outer diameter (D) | 130 mm |
| Shaft mounting diameter (d) | 12 mm (fixed with a parallel key) |
| Suction inlet outer diameter | 41 mm |
| Convex base diameter | 80 mm |
| Vane stack height (disc thickness) | 12 mm |
| Internal distance between discs | 6 mm |
| Material | Glass-filled Noryl (PPO) technopolymer with metal sleeve |
| Condition | New
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