Ksbj-291 -

| Parameter | Value | |-----------|-------| | Overall length (center‑to‑center) | 1 080 mm | | Overall width (including flange) | 780 mm | | Overall height (incl. motor) | 1 150 mm (motor‑mounted) | | Impeller diameter (D) | 291 mm | | Shaft length (motor to bearing) | 340 mm | | Weight (dry, cast‑iron) | ≈ 210 kg | | Weight (dry, stainless) | ≈ 185 kg |

Note – Exact dimensions vary with nominal flow class (DN 90‑600). All dimensions are given in millimetres (mm) unless otherwise noted. KSBJ-291

| Item | Description | |------|-------------| | Product family | 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. | | Parameter | Value | |-----------|-------| | Overall

The J‑291 is the “work‑horse” of KSB’s J‑Series, often chosen when a reliable, low‑maintenance pump is needed in a relatively confined installation space. It is especially popular in: Note – Exact dimensions vary with nominal flow

The J‑291 is supplied with a performance map that covers the full range of operating points from the shut‑off head down to the free‑delivery (zero‑head) flow. The curves are derived from CFD‑validated design and verified in‑plant.