Ksbj-291 May 2026

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| Item | Recommended Practice | |------|-----------------------| | | Minimum pipe length: 3 D (≈ 1 m for DN 300) straight pipe upstream of the pump; avoid elbows within this length. | | Net Positive Suction Head (NPSHA) | Verify NPSHA ≥ NPSHR + 0.5 m (safety margin). Use a pressure‑transducer or calculate based on fluid level, vapor pressure, and friction losses. | | Check valve | Install downstream of the pump only if the system requires back‑flow protection; otherwise, a non‑return valve adds unnecessary head loss. | | Strainer | Use a Y‑type strainer (mesh ≈ 2 mm) upstream; cleanable without dismantling the pump. | | Discharge | Provide at least 2 D of straight pipe downstream of the pump before the first valve or bend. | If you can provide more details about "KSBJ-291,"

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| Item | Description | |------|-------------| | | KSB J‑Series (single‑stage, end‑suction, close‑coupled centrifugal pumps) | | Model | J‑291 | | Design purpose | General‑purpose liquid handling for water, light oils, and non‑corrosive chemicals in HVAC, municipal, industrial and agricultural applications. | | Typical ratings | 0.5 – 250 m³ h⁻¹ (≈ 130 – 66 000 gpm) at heads up to 90 m (≈ 300 ft). | | Drive options | Direct‑coupled to a standard 3‑phase motor (up to 355 kW) or optional belt‑drive configuration. | | Certifications | ISO 9001, ISO 14001, ATEX‑II 3G (explosion‑proof version), CE‑marked, ANSI/ASME B73.1 compliance. | | Key selling points | • Compact, low‑profile design (≤ 1.2 m overall height) • High‑efficiency hydraulic profile (up to 85 % at BEP) • Easy access for maintenance (removable volute/impeller) • Wide range of impeller‑diameter (D = 290 mm nominal) • Robust cast‑iron or stainless‑steel (AISI 304/316) construction. |

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