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XBD-DW
The XBD-DW is a horizontal, single-suction, segmental multistage pump. Up to five closed impellers are mounted in series on one shaft, so each stage adds 40 m of head and the total head grows with the stage count while the flow stays at the rated value. Inlet and outlet are on the same horizontal axis with identical nominal diameters, which keeps the pump room layout simple and makes the unit easy to align, install and service.
2 to 5 stages deliver 80 / 120 / 160 / 200 m at a single rated flow — the head a single-stage fire pump cannot reach. No need to stage pumps in series for typical high-rise risers.
Rated flow from 20 to 100 L/s (72–350 m³/h) with duty points up to 116.7 L/s, so large hydrant, sprinkler, deluge and transmission demands are covered by one compact unit.
PN16 casing for total heads up to 160 m; the 200 m versions are available in PN25 for systems with design pressure
above 1.6 MPa.
380 V / 50 Hz, 2900–2950 rpm, air-cooled, Class F insulation, IP54. IE3 efficiency keeps the power cost of continuous municipal and transmission duty under control.
Standard 304 impeller with 40Cr high strength shaft, building to last 20 year's service life
Standard for the Installation of Stationary Pumps for Fire Protection — used as a design reference for international projects.
The XBD-DW series covers the working range of most high-head fixed fire protection systems. Custom voltage / frequency and stainless-steel wetted parts are available on request.
Parameter | Value | Parameter | Value |
|---|---|---|---|
Rated Flow Range | 20 – 97 L/s (72 – 350 m³/h) | Voltage | 380 V (other voltages on request) |
Max. Duty Point | up to 116.7 L/s (420 m³/h) | Frequency | 50 Hz (60 Hz on request) |
Head per Stage | 40 m | Speed | 2900 / 2950 rpm |
Number of Stages | 2 – 5 (total head 80 – 200 m) | Motor Power Range | 37 – 280 kW |
Discharge Diameter | DN100 – DN200 | Efficiency Class | IE3 |
Max. Working Pressure | PN16 / PN25 | Mounting Type | B5, baseplate-mounted |
Liquid Temperature | -15 °C to +80 °C | Insulation / Protection | Class F / IP54 |
Sealing | Mechanical seal | Cooling | Air-cooled |
Impeller | Closed | Structure | Horizontal, multistage, single suction, segmental |
Note: figures are for the standard 50 Hz configuration. Full hydraulic curves, NPSH data, dimensional drawings and weights are available in the product catalogue.The XBD-DW series covers the working range of most high-head fixed fire protection systems. Custom voltage / frequency and stainless-steel wetted parts are available on request.
The XBD-DW transports clean water, free of solid particles, or liquids physically and chemically similar to water, up to 80 °C. Its working envelope — large flow plus high head — determines where it is the right pump.
High-rise and super high-rise building hydrant & sprinkler risers (head up to 200 m)
Industrial deluge and water-spray extinguishing systems
Warehouse, factory and logistics-centre sprinkler networks
Airport, railway station and public-transport-hub fire protection
Oil, chemical and process-industry firewater networks
Independent / combined firewater supply systems
Municipal water-supply pressure boosting and pressure zones
Long-distance water transmission and transfer mains
Industrial water supply and drainage
Water supply for air-conditioning and refrigeration systems
Garde
Example: 200DW350-40 = DN200 discharge, rated flow 350 m³/h (97.22 L/s), 40 m head per stage; with 5 stages it delivers 200 m at 280 kW.
Each model is listed by rated flow (m³/h and L/s) and head at rated flow.
Head is built in 40 m steps by adding stages: 2 stages = 80 m, 3 = 120 m, 4 = 160 m, 5 = 200 m.
Per GB 6245 type testing, every model is also verified at 0.7× and 1.2× rated flow; the 1.2× point confirms the motor has no-overload margin at the maximum duty point.
| Model | Stages | Rated Flow (m³/h) | Rated Flow (L/s) | Head at Rated Flow (m) | Speed (r/min) | Motor Power (kW) | Discharge DN |
|---|---|---|---|---|---|---|---|
| 100DW72-40 | 2 | 72 | 20 | 80 | 2900 | 37 | DN100 |
| 100DW72-40 | 3 | 72 | 20 | 120 | 2900 | 45 | DN100 |
| 100DW72-40 | 4 | 72 | 20 | 160 | 2900 | 55 | DN100 |
| 100DW72-40 | 5 | 72 | 20 | 200 | 2900 | 75 | DN100 |
| 100DW108-40 | 2 | 108 | 30 | 80 | 2900 | 45 | DN100 |
| 100DW108-40 | 3 | 108 | 30 | 120 | 2900 | 55 | DN100 |
| 100DW108-40 | 4 | 108 | 30 | 160 | 2900 | 75 | DN100 |
| 100DW108-40 | 5 | 108 | 30 | 200 | 2900 | 110 | DN100 |
| 150DW144-40 | 2 | 144 | 40 | 80 | 2900 | 55 | DN150 |
| 150DW144-40 | 3 | 144 | 40 | 120 | 2900 | 75 | DN150 |
| 150DW144-40 | 4 | 144 | 40 | 160 | 2900 | 110 | DN150 |
| 150DW144-40 | 5 | 144 | 40 | 200 | 2900 | 132 | DN150 |
| 150DW162-40 | 2 | 162 | 45 | 80 | 2900 | 55 | DN150 |
| 150DW162-40 | 3 | 162 | 45 | 120 | 2900 | 90 | DN150 |
| 150DW162-40 | 4 | 162 | 45 | 160 | 2900 | 110 | DN150 |
| 150DW162-40 | 5 | 162 | 45 | 200 | 2900 | 132 | DN150 |
| 200DW280-40 | 2 | 280 | 77.78 | 80 | 2950 | 90 | DN200 |
| 200DW280-40 | 3 | 280 | 77.78 | 120 | 2950 | 132 | DN200 |
| 200DW280-40 | 4 | 280 | 77.78 | 160 | 2950 | 185 | DN200 |
| 200DW280-40 | 5 | 280 | 77.78 | 200 | 2950 | 220 | DN200 |
| 200DW350-40 | 2 | 350 | 97.22 | 80 | 2950 | 110 | DN200 |
| 200DW350-40 | 3 | 350 | 97.22 | 120 | 2950 | 185 | DN200 |
| 200DW350-40 | 4 | 350 | 97.22 | 160 | 2950 | 220 | DN200 |
| 200DW350-40 | 5 | 350 | 97.22 | 200 | 2950 | 280 | DN200 |
Representative selection — the full series includes additional intermediate models. Duty points at 0.7× and 1.2× rated flow: e.g. 100DW72-40 is tested at 50 / 72 / 86.4 m³/h; 200DW350-40 at 245 / 350 / 420 m³/h. If your required duty point falls between models, contact our technical support — we can design and manufacture to the actual requirement.
The XBD-DW Horizontal Multistage Fire Pump comprises various components made from high-quality materials. The suction case, guide vanes, stage case, and discharge case are constructed using HT200 cast iron. Key parts like the impeller, utilize SS304 for non-corrosion.
The pump features a 40Cr carbon steel tie bolt and bearing outer ring for strength. Sealing is ensured by an HT250 sealing house and HT200 mechanical seals. O-rings made from EPDM provide reliable sealing performance.
Elastic pin coupling parts (HT200) connect the pump to the motor. A rough felt felt washer and 45# carbon steel nut secure the assembly. The base plate supporting the pump is made from carbon steel.
These carefully selected materials and components contribute to the pump's overall robustness and efficiency in firefighting applications. The combination of stainless steel, carbon steel, and high-quality seals ensures long-lasting performance in demanding conditions.
Fire pump selection is a hydraulic calculation, not a catalogue pick. Follow the five steps below, then match the result against the four application scenarios.
From the system demand: number of simultaneous hydrants × ~5 L/s each, sprinkler design density × protected area, or the deluge / water-spray demand of the hazard. Sum the simultaneous demands; this Q fixes the model family.
H = static lift + friction loss at Q + residual pressure. For high-rise hydrant systems a common allowance above building height is ≈ 35 m (friction + residual) — verify against your local code.
≤ 30 L/s → 100DW72-40 / 100DW108-40 (DN100); 30–45 L/s → 150DW144-40 / 150DW162-40 (DN150); > 45 L/s → 200DW280-40 / 200DW350-40 (DN200).
Stages = required head ÷ 40 m, rounded up. 2 stages = 80 m, 3 = 120 m, 4 = 160 m, 5 = 200 m.
Total head ≤ 160 m → PN16; 200 m versions and systems above 1.6 MPa → PN25. Use the tabulated motor power — it is sized so the 1.2× rated-flow point stays within the motor rating (no-overload margin).
| Application | Dominant Design Driver | Typical Duty | Recommended Models | Stage Logic | Pressure Class |
|---|---|---|---|---|---|
| High-rise building fire protection hydrant & sprinkler risers | Static head of the riser + residual pressure at the top hydrant / sprinkler | 20 – 45 L/s; H ≈ building height + 25–40 m allowance | 100DW72 / 108-40 (DN100) 150DW144 / 162-40 (DN150) | 4 stages for ~150–160 m 5 stages for ~200 m towers | PN16 (≤160 m) PN25 (200 m) |
| Industrial fire protection deluge, water spray, warehouse sprinkler | Large flow demand + extended plant pipe networks | 50 – 100+ L/s; H 80 – 160 m typical | 200DW280 / 350-40 (DN200) | 2–4 stages typical; 5 stages for elevated tanks | PN16 / PN25 per head |
| Municipal water supply network boosting, pressure zones | Continuous pressure to the zone + variable demand | 40 – 97 L/s; H per zone requirement | 150DW144 / 162-40 200DW280-40 | Match the zone pressure step; avoid over-heading | PN16 typical |
| Long-distance water transmission pipelines, transfer mains | Friction loss grows with distance — often dominates | H = static + friction + residual; friction can exceed static | 200DW280 / 350-40; parallel units for very high flow | 4–5 stages for long lines | PN25 recommended above 1.6 MPa |
Allowance values above are engineering estimates for illustration — always verify against the applicable code (GB 50974 in China; NFPA 20 / NFPA 13 / NFPA 14 internationally) and the system designer’s hydraulic calculation.
The selection method applied to typical projects.
H = 120 m (static) + 35 m (friction + residual allowance) ≈ 155 m → 4 stages (160 m). Flow 30 L/s → DN100 family. Selection: 100DW108-40, 4-stage, 75 kW, PN16. For a 200 m tower with the same flow, use the 5-stage version in PN25.
Flow 80 L/s → DN200 family. Head 120 m → 3 stages. Selection: 200DW280-40, 3-stage, 132 kW, PN16. No-overload check: 1.2× rated flow = 93.3 L/s, within the 132 kW motor rating tabulated for this configuration.
Friction estimate (Hazen-Williams, C = 120, DN200 pipe): ≈ 21 m per km → 42 m for 2 km. H = 40 m static + 42 m friction + 10 m residual ≈ 92 m → 3 stages (120 m) for margin. At 60 L/s the 200DW280-40 runs at 0.77× rated flow — comfortably inside the envelope. Selection: 200DW280-40, 3-stage, 132 kW, PN16.
Friction figures are estimates for a clean steel pipe at the stated diameter and flow. For a real project, use the system’s actual pipe schedule, fittings and elevation profile — we will run the check for you if you send the line layout.
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