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Chao Dun Machinery (Zhejiang) Co., Ltd

CDS Series Electric Split Case Double Suction Fire Pump

Product Overview

The XBD-CDS Horizontal Split-Case Double-Suction Fire Pump Set is a double-suction centrifugal fire pump featuring a straight-through flow passage, rib-reinforced casing, and optimized bearing span for enhanced shaft rigidity, integrated with mechanical seal and resin-sand precision casting process for stable high-flow medium-head fire water supply.

Resolves four critical operational challenges in conventional split-case fire pumps: excessive hydraulic losses reducing energy efficiency, insufficient shaft rigidity causing vibration and noise exceedance, mechanical seal leakage risks, and high NPSH requirements limiting installation flexibility.

Suitable for fire protection systems in high-rise buildings, industrial facilities, and municipal infrastructure requiring high-flow medium-head delivery, low vibration/noise operation, zero-leakage performance, and reliable start-up after prolonged standby.

Product Advantages

Extended Service Life: Standard SiC + alloy mechanical seals + QT450/304 stainless steel wetted parts resist cavitation & fatigue. Design lifespan ≥15 years—over 40% longer than standard cast-iron single-suction fire pumps.

Significant Energy Savings: CFD-optimized hydraulic model + resin-sand precision casting delivers smooth flow passages. Rated efficiency ≥82%, reducing annual energy consumption by 20%–30% vs. traditional solutions.

Lower Maintenance Costs: Horizontal split-case design + top lifting rings enable rotor/seal inspection without disconnecting inlet/outlet pipes. One technician completes core component replacement within 1.5 hours, cutting maintenance costs by 50%.

Lightweight & Compact Design: Double-suction symmetrical layout eliminates radial thrust. Optimized casing wall thickness & reinforcement ribs reduce overall weight by ~15% for equivalent flow/head, lowering foundation load & lifting complexity.

Faster Installation: Pre-aligned flanges + anchor bolt positioning holes enable direct pipeline connection after hoisting. Standard units reach commissioning readiness within 2.5 hours from unboxing, compressing installation cycle by 45%.

Application Scenarios

Building Fire Protection: Hydrant, automatic sprinkler, and water mist systems for high-rise/super high-rise buildings, commercial complexes, hotels, offices, and residential communities.

Industrial Fire Protection: Fire network water supply & process cooling backup for petrochemical, power plants, metallurgy/mining, pharmaceutical, and logistics warehouse facilities.

Municipal Facilities: Emergency fire water supply guarantee for critical public infrastructure: hospitals, schools, subway tunnels, airports/ports, and data centers.

Pipeline Boosting: Fire main network boosting/stabilization integration, or dual-source water supply systems paired with electric pumps to ensure stable, reliable water pressure.

Media Compatibility: Clean water or mildly corrosive liquids with similar properties. Standard media temperature ≤80℃/176℉. Free of highly abrasive solid particles.

Technical Parameters

Model Designation

Product Structure Diagram

No. Material Name Material Properties
1 Pump Casing QT450
2 Casing Cover QT450
3 Impeller 304
4 Seal Flush Line 304
5 Wear Ring QT450
6 Mechanical Seal Silicon Carbide + Alloy
7 Pump Shaft 2Cr+13
8 Bearing Housing QT450
9 Bearing Cover QT450
10 Water Slinger Nitrile Butadiene Rubber
11 Shaft Sleeve Carbon Steel
12 Mechanical Seal Gland QT450
13 Bearing Bearing Steel
14 End Cover QT450
15 O-Ring Nitrile Butadiene Rubber

Performance Data Table 1

NO. Specifications Flow (L/s) Head

(m)

Power

(kw)

Speed

(r/min)

Efficiency Inlet Size Outlet Size Pump Weight
1 XBD11.0/60G-CDS 60 110 132 1480 70 150 100 223
2 XBD12.0/60G-CDS 60 120 132 1480 70 150 100 223
3 XBD13.0/60G-CDS 60 130 132 1480 72 150 100 223
4 XBD14.0/60G-CDS 60 140 160 1480 66 150 100 241
5 XBD15.0/60G-CDS 60 150 160 1480 66 150 100 241
6 XBD16.0/60G-CDS 60 160 160 1480 66 150 100 241
7 XBD17.0/60G-CDS 60 170 200 1480 68 150 100 241
8 XBD18.0/60G-CDS 60 180 220 1480 68 150 100 241
9 XBD19.0/60G-CDS 60 190 220 1480 72 150 100 241
10 XBD20.0/60G-CDS 60 200 250 1480 72 150 100 241
11 XBD9.0/70G-CDS 70 90 110 1480 69 150 100 223
12 XBD10.0/70G-CDS 70 100 132 1480 70 150 100 223
13 XBD11.0/70G-CDS 70 110 160 2900 70 150 100 223
14 XBD12.0/70G-CDS 70 120 160 2900 70 150 100 223
15 XBD13.0/70G-CDS 70 130 160 2900 72 150 100 223
16 XBD14.0/70G-CDS 70 140 160 2900 73 150 100 241
17 XBD15.0/70G-CDS 70 150 200 2900 73 150 100 241
18 XBD16.0/70G-CDS 70 160 200 2900 73 150 100 241
19 XBD17.0/70G-CDS 70 170 220 2900 75 150 100 241
20 XBD18.0/70G-CDS 70 180 250 2900 75 150 100 241
21 XBD19.0/70G-CDS 70 190 250 2900 80 150 100 241
22 XBD20.0/70G-CDS 70 200 250 2900 80 150 100 241
23 XBD3.0/80G-CDS 80 30 55 1480 84 200 150 350
24 XBD4.0/80G-CDS 80 40 75 1480 79 200 150 370
25 XBD5.0/80G-CDS 80 50 75 1480 80 200 150 370
26 XBD6.0/80G-CDS 80 60 90 1480 78.5 200 150 500
27 XBD7.0/80G-CDS 80 70 90 1480 80 200 150 500
28 XBD8.0/80G-CDS 80 80 90 2900 69 150 100 223
29 XBD9.0/80G-CDS 80 90 110 2900 70 150 100 223
30 XBD10.0/80G-CDS 80 100 132 2900 70 150 100 223
31 XBD11.0/80G-CDS 80 110 160 2900 72 150 100 223
32 XBD12.0/80G-CDS 80 120 160 2900 72 150 100 223

Performance Data Table 2

NO. Specifications Flow (L/s) Head

(m)

Power

(kw)

Speed

(r/min)

Efficiency Inlet Size Outlet Size Pump Weight
33 XBD13.0/80G-CDS 80 130 160 2900 73 150 100 241
34 XBD14.0/80G-CDS 80 140 160 2900 73 150 100 241
35 XBD15.0/80G-CDS 80 150 200 2900 73 150 100 241
36 XBD16.0/80G-CDS 80 160 220 2900 75 150 100 241
37 XBD17.0/80G-CDS 80 170 220 2900 78 150 100 241
38 XBD18.0/80G-CDS 80 180 250 2900 78 150 100 241
39 XBD19.0/80G-CDS 80 190 250 2900 80 150 100 241
40 XBD20.0/80G-CDS 80 200 250 2900 80 150 100 241
41 XBD3.0/90G-CDS 90 30 55 1480 84 200 150 350
42 XBD4.0/90G-CDS 90 40 75 1480 79 200 150 370
43 XBD5.0/90G-CDS 90 50 75 1480 80 200 150 370
44 XBD6.0/90G-CDS 90 60 90 1480 78.5 200 150 500
45 XBD7.0/90G-CDS 90 70 90 1480 80 200 150 500
46 XBD8.0/90G-CDS 90 80 90 2900 69 150 100 223
47 XBD9.0/90G-CDS 90 90 110 2900 70 150 100 223
48 XBD10.0/90G-CDS 90 100 132 2900 70 150 100 223
49 XBD11.0/90G-CDS 90 110 200 2900 72 150 100 223
50 XBD12.0/90G-CDS 90 120 200 2900 72 150 100 223
51 XBD13.0/90G-CDS 90 130 200 2900 73 150 100 241
52 XBD14.0/90G-CDS 90 140 200 2900 73 150 100 241
53 XBD15.0/90G-CDS 90 150 200 2900 73 150 100 241
54 XBD16.0/90G-CDS 90 160 220 2900 75 150 100 241
55 XBD17.0/90G-CDS 90 170 250 2900 78 150 100 241
56 XBD18.0/90G-CDS 90 180 250 2900 78 150 100 241
57 XBD3.0/100G-CDS 100 30 55 1450 80 200 150 370
58 XBD4.0/100G-CDS 100 40 75 1450 80 200 150 370
59 XBD5.0/100G-CDS 100 50 90 2900 84 200 150 310
60 XBD6.0/100G-CDS 100 60 90 2900 84 200 150 310
61 XBD7.0/100G-CDS 100 70 110 2900 80 200 150 350
62 XBD8.0/100G-CDS 100 80 132 2900 82 200 150 350
63 XBD9.0/100G-CDS 100 90 132 2900 82 200 150 350
64 XBD10.0/100G-CDS 100 100 200 2900 78 150 100 223

Performance Data Table 3

NO. Specifications Flow (L/s) Head

(m)

Power

(kw)

Speed

(r/min)

Efficiency Inlet Size Outlet Size Pump Weight
65 XBD11.0/100G-CDS 100 110 200 2900 78 150 100 223
66 XBD12.0/100G-CDS 100 120 200 2900 80 150 100 223
67 XBD13.0/100G-CDS 100 130 400 2900 80 150 100 223
68 XBD14.0/100G-CDS 100 140 400 2900 75 150 100 241
69 XBD15.0/100G-CDS 100 150 450 2900 78 150 100 241
70 XBD16.0/100G-CDS 100 160 500 2900 78 150 100 241
71 XBD17.0/100G-CDS 100 170 560 2900 78 150 100 241
72 XBD18.0/100G-CDS 100 180 560 2900 78 150 100 241
73 XBD19.0/100G-CDS 100 190 630 2900 80 150 100 241
74 XBD20.0/100G-CDS 100 200 630 2900 80 150 100 241
75 XBD3.0/110G-CDS 110 30 55 1450 80 200 150 370
76 XBD4.0/110G-CDS 110 40 75 1450 80 200 150 370
77 XBD5.0/110G-CDS 110 50 90 2900 84 200 150 310
78 XBD6.0/110G-CDS 110 60 110 2900 84 200 150 310
79 XBD7.0/110G-CDS 110 70 110 2900 80 200 150 350
80 XBD8.0/110G-CDS 110 80 160 2900 82 200 150 350
81 XBD9.0/110G-CDS 110 90 160 2900 82 200 150 350
82 XBD10.0/110G-CDS 110 100 200 2900 78 150 100 223
83 XBD11.0/110G-CDS 110 110 355 2900 78 150 100 223
84 XBD12.0/110G-CDS 110 120 355 2900 80 150 100 223
85 XBD13.0/110G-CDS 110 130 400 2900 80 150 100 223
86 XBD14.0/110G-CDS 110 140 450 2900 75 150 100 241
87 XBD15.0/110G-CDS 110 150 500 2900 78 150 100 241
88 XBD16.0/110G-CDS 110 160 500 2900 78 150 100 241
89 XBD17.0/110G-CDS 110 170 560 2900 78 150 100 241
90 XBD18.0/110G-CDS 110 180 630 2900 78 150 100 241
91 XBD19.0/110G-CDS 110 190 630 2900 80 150 100 241
92 XBD20.0/110G-CDS 110 200 710 2900 80 150 100 241
93 XBD3.0/120G-CDS 120 30 75 1450 81 200 150 410
94 XBD4.0/120G-CDS 120 40 90 1450 76 200 150 520
95 XBD5.0/120G-CDS 120 50 110 1450 78 200 150 520
96 XBD6.0/120G-CDS 120 60 132 1450 81.5 200 150 520

Performance Data Table 4

NO. Specifications Flow (L/s) Head

(m)

Power

(kw)

Speed

(r/min)

Efficiency Inlet Size Outlet Size Pump Weight
97 XBD7.0/120G-CDS 120 70 160 1450 76.5 200 150 740
98 XBD8.0/120G-CDS 120 80 160 1450 78 200 150 740
99 XBD9.0/120G-CDS 120 90 200 1450 80 200 150 740
100 XBD10.0/120G-CDS 120 100 250 1450 80 200 150 740
101 XBD11.0/120G-CDS 120 110 250 1450 80 200 150 740
102 XBD12.0/120G-CDS 120 120 400 1450 80 200 150 820
103 XBD13.0/120G-CDS 120 130 450 1450 82 200 150 820
104 XBD14.0/120G-CDS 120 140 450 1450 82 200 150 820
105 XBD15.0/120G-CDS 120 150 500 1450 82 200 150 820
106 XBD16.0/120G-CDS 120 160 560 1450 82 200 150 820
107 XBD17.0/120G-CDS 120 170 560 1450 82 200 150 820
108 XBD18.0/120G-CDS 120 180 630 1450 82 200 150 820
109 XBD19.0/120G-CDS 120 190 630 1450 82 200 150 820
110 XBD20.0/120G-CDS 120 200 710 1450 82 200 150 820
111 XBD3.0/130G-CDS 130 30 90 1450 81 200 150 410
112 XBD4.0/130G-CDS 130 40 110 1450 76 200 150 520
113 XBD5.0/130G-CDS 130 50 110 1450 78 200 150 520
114 XBD6.0/130G-CDS 130 60 132 1450 81.5 200 150 520
115 XBD7.0/130G-CDS 130 70 160 1450 76.5 200 150 740
116 XBD8.0/130G-CDS 130 80 160 1450 78 200 150 740
117 XBD9.0/130G-CDS 130 90 200 1450 80 200 150 740
118 XBD10.0/130G-CDS 130 100 250 1450 80 200 150 740
119 XBD11.0/130G-CDS 130 110 250 1450 80 200 150 740
120 XBD12.0/130G-CDS 130 120 355 1450 80 200 150 820
121 XBD13.0/130G-CDS 130 130 355 1450 82 200 150 820
122 XBD14.0/130G-CDS 130 140 400 1450 82 200 150 820
123 XBD15.0/130G-CDS 130 150 450 1450 82 200 150 820
124 XBD16.0/130G-CDS 130 160 560 1450 82 200 150 820
125 XBD17.0/130G-CDS 130 170 560 1450 82 200 150 820
126 XBD18.0/130G-CDS 130 180 630 1450 82 200 150 820
127 XBD19.0/130G-CDS 130 190 630 1450 82 200 150 820
128 XBD20.0/130G-CDS 130 200 710 1450 82 200 150 820

Performance Data Table 5

NO. Specifications Flow (L/s) Head

(m)

Power

(kw)

Speed

(r/min)

Efficiency Inlet Size Outlet Size Pump Weight
129 XBD3.0/140G-CDS 140 30 90 1450 81 200 150 410
130 XBD4.0/140G-CDS 140 40 110 1450 76 200 150 520
131 XBD5.0/140G-CDS 140 50 132 1450 78 200 150 520
132 XBD6.0/140G-CDS 140 60 160 1450 81.5 200 150 520
133 XBD7.0/140G-CDS 140 70 160 1450 76.5 200 150 740
134 XBD8.0/140G-CDS 140 80 200 1450 78 200 150 740
135 XBD9.0/140G-CDS 140 90 200 1450 80 200 150 740
136 XBD10.0/140G-CDS 140 100 250 1450 80 200 150 740
137 XBD11.0/140G-CDS 140 110 250 1450 80 200 150 740
138 XBD12.0/140G-CDS 140 120 355 1450 80 200 150 820
139 XBD13.0/140G-CDS 140 130 355 1450 82 200 150 820
140 XBD14.0/140G-CDS 140 140 450 1450 82 200 150 820
141 XBD15.0/140G-CDS 140 150 450 1450 82 200 150 820
142 XBD16.0/140G-CDS 140 160 560 1450 82 200 150 820
143 XBD17.0/140G-CDS 140 170 630 1450 82 200 150 820
144 XBD18.0/140G-CDS 140 180 630 1450 82 200 150 820
145 XBD19.0/140G-CDS 140 190 630 1450 82 200 150 820
146 XBD20.0/140G-CDS 140 200 710 1450 82 200 150 820
147 XBD3.0/150G-CDS 150 30 90 1450 83.5 200 150 410
148 XBD4.0/150G-CDS 150 40 110 1450 78 200 150 520
149 XBD5.0/150G-CDS 150 50 132 1450 78 200 150 520
150 XBD6.0/150G-CDS 150 60 160 1450 81.5 200 150 520
151 XBD7.0/150G-CDS 150 70 200 1450 78 200 150 740
152 XBD8.0/150G-CDS 150 80 200 1450 80 200 150 740
153 XBD9.0/150G-CDS 150 90 200 1450 80 200 150 740
154 XBD10.0/150G-CDS 150 100 250 1450 80 200 150 740
155 XBD11.0/150G-CDS 150 110 315 1450 80 200 150 740
156 XBD12.0/150G-CDS 150 120 355 1450 82 200 150 820
157 XBD13.0/150G-CDS 150 130 355 1450 82 200 150 820
158 XBD14.0/150G-CDS 150 140 450 1450 82 200 150 820
159 XBD15.0/150G-CDS 150 150 450 1450 82 200 150 820
160 XBD16.0/150G-CDS 150 160 560 1450 82 200 150 820

Performance Data Table 6

NO. Specifications Flow (L/s) Head

(m)

Power

(kw)

Speed

(r/min)

Efficiency Inlet Size Outlet Size Pump Weight
161 XBD17.0/150G-CDS 150 170 630 1450 82 200 150 820
162 XBD18.0/150G-CDS 150 180 630 1450 82 200 150 820
163 XBD19.0/150G-CDS 150 190 710 1450 82 200 150 820
164 XBD20.0/150G-CDS 150 200 710 1450 82 200 150 820
165 XBD3.0/160G-CDS 160 30 90 1450 83.5 200 150 410
166 XBD4.0/160G-CDS 160 40 110 1450 78 200 150 520
167 XBD5.0/160G-CDS 160 50 132 1450 78 200 150 520
168 XBD6.0/160G-CDS 160 60 160 1450 81.5 200 150 520
169 XBD7.0/160G-CDS 160 70 200 1450 78 200 150 740
170 XBD8.0/160G-CDS 160 80 200 1450 80 200 150 740
171 XBD9.0/160G-CDS 160 90 200 1450 80 200 150 740
172 XBD10.0/160G-CDS 160 100 250 1450 80 200 150 740
173 XBD11.0/160G-CDS 160 110 250 1450 80 200 150 740
174 XBD12.0/160G-CDS 160 120 355 1450 80 250 200 920
175 XBD13.0/160G-CDS 160 130 355 1450 80 250 200 920
176 XBD14.0/160G-CDS 160 140 450 1450 78.5 250 200 920
177 XBD15.0/160G-CDS 160 150 450 1450 80 250 200 920
178 XBD16.0/160G-CDS 160 160 560 1450 65 250 200 1450
179 XBD17.0/160G-CDS 160 170 560 1450 67 250 200 1450
180 XBD18.0/160G-CDS 160 180 560 1450 67 250 200 1450
181 XBD19.0/160G-CDS 160 190 630 1450 82 200 150 820
182 XBD20.0/160G-CDS 160 200 710 1450 82 200 150 820
183 XBD3.0/170G-CDS 170 30 110 1450 83.5 200 150 410
184 XBD4.0/170G-CDS 170 40 132 1450 78 200 150 520
185 XBD5.0/170G-CDS 170 50 132 1450 78 200 150 520
186 XBD6.0/170G-CDS 170 60 160 1450 81.5 200 150 520
187 XBD7.0/170G-CDS 170 70 160 1450 78 200 150 740
188 XBD8.0/170G-CDS 170 80 200 1450 80 200 150 740
189 XBD9.0/170G-CDS 170 90 250 1450 80 200 150 740
190 XBD10.0/170G-CDS 170 100 250 1450 80 200 150 740
191 XBD11.0/170G-CDS 170 110 315 1450 80 200 150 740
192 XBD12.0/170G-CDS 170 120 355 1450 80 250 200 920

Performance Data Table 7

NO. Specifications Flow (L/s) Head

(m)

Power

(kw)

Speed

(r/min)

Efficiency Inlet Size Outlet Size Pump Weight
225 XBD13.0/190G-CDS 190 130 355 1450 80 250 200 920
226 XBD14.0/190G-CDS 190 140 450 1450 78.5 250 200 920
227 XBD15.0/190G-CDS 190 150 560 1450 80 250 200 920
228 XBD16.0/190G-CDS 190 160 560 1450 65 250 200 1450
229 XBD17.0/190G-CDS 190 170 560 1450 67 250 200 1450
230 XBD18.0/190G-CDS 190 180 630 1450 67 250 200 1450
231 XBD19.0/190G-CDS 190 190 630 1450 69 250 200 1450
232 XBD20.0/190G-CDS 190 200 710 1450 69 250 200 1450
233 XBD3.0/200G-CDS 200 30 110 1450 86 250 200 590
234 XBD4.0/200G-CDS 200 40 132 1450 83 250 200 620
235 XBD5.0/200G-CDS 200 50 160 1450 85 250 200 620
236 XBD6.0/200G-CDS 200 60 200 1450 80 250 200 840
237 XBD7.0/200G-CDS 200 70 250 1450 81 250 200 840
238 XBD8.0/200G-CDS 200 80 250 1450 82 250 200 840
239 XBD9.0/200G-CDS 200 90 315 1450 82 250 200 840
240 XBD10.0/200G-CDS 200 100 315 1450 76 250 200 920
241 XBD11.0/200G-CDS 200 110 355 1450 78.5 250 200 920
242 XBD12.0/200G-CDS 200 120 355 1450 80 250 200 920
243 XBD13.0/200G-CDS 200 130 355 1450 80 250 200 920
244 XBD14.0/200G-CDS 200 140 450 1450 78.5 250 200 920
245 XBD15.0/200G-CDS 200 150 450 1450 80 250 200 920
246 XBD16.0/200G-CDS 200 160 560 1450 65 250 200 1450
247 XBD17.0/200G-CDS 200 170 630 1450 67 250 200 1450
248 XBD18.0/200G-CDS 200 180 630 1450 67 250 200 1450
249 XBD3.0/210G-CDS 210 30 110 1450 86 250 200 590
250 XBD4.0/210G-CDS 210 40 132 1450 83 250 200 620
251 XBD5.0/210G-CDS 210 50 160 1450 85 250 200 620
252 XBD6.0/210G-CDS 210 60 200 1450 80 250 200 840
253 XBD7.0/210G-CDS 210 70 250 1450 81 250 200 840
254 XBD8.0/210G-CDS 210 80 250 1450 82 250 200 840
255 XBD9.0/210G-CDS 210 90 315 1450 82 250 200 840
256 XBD10.0/210G-CDS 210 100 315 1450 76 250 200 920

Performance Data Table 8

NO. Specifications Flow (L/s) Head

(m)

Power

(kw)

Speed

(r/min)

Efficiency Inlet Size Outlet Size Pump Weight
289 XBD9.0/230G-CDS 230 90 315 1450 82 250 200 840
290 XBD10.0/230G-CDS 230 100 315 1450 76 250 200 920
291 XBD11.0/230G-CDS 230 110 355 1450 78.5 250 200 920
292 XBD12.0/230G-CDS 230 120 355 1450 80 250 200 920
293 XBD13.0/230G-CDS 230 130 450 1450 80 250 200 920
294 XBD14.0/230G-CDS 230 140 450 1450 78.5 250 200 920
295 XBD15.0/230G-CDS 230 150 560 1450 80 250 200 920
296 XBD16.0/230G-CDS 230 160 630 1450 65 250 200 1450
297 XBD17.0/230G-CDS 230 170 630 1450 67 250 200 1450
298 XBD18.0/230G-CDS 230 180 630 1450 67 250 200 1450
299 XBD19.0/230G-CDS 230 190 710 1450 69 250 200 1450
300 XBD20.0/230G-CDS 230 200 800 1450 69 250 200 1450
301 XBD4.0/250G-CDS 250 40 160 1450 80.5 300 250 930
302 XBD7.0/250G-CDS 250 70 250 1450 81.5 300 250 1215
303 XBD3.0/260G-CDS 260 30 110 1450 86 300 250 810
304 XBD3.0/270G-CDS 270 30 132 1450 86 300 250 810
305 XBD7.0/270G-CDS 270 70 250 1450 82 300 250 1215
306 XBD9.0/270G-CDS 270 90 315 1450 82.5 300 250 1215
307 XBD5.0/280G-CDS 280 50 200 1450 82.5 300 250 930
308 XBD7.0/280G-CDS 280 70 280 1450 79 350 250 990
309 XBD4.0/290G-CDS 290 40 160 1450 88 300 250 810
310 XBD7.0/290G-CDS 290 70 315 1450 81 350 250 990
311 XBD8.0/290G-CDS 290 80 315 1450 83 300 250 1215
312 XBD11.0/290G-CDS 290 110 400 1450 83 300 250 1215
313 XBD12.0/290G-CDS 290 120 560 1450 84 300 250 1215
314 XBD5.0/300G-CDS 300 50 220 1450 84 300 250 930
315 XBD8.0/300G-CDS 300 80 355 1450 83 350 250 990
316 XBD15.0/300G-CDS 300 150 800 1450 77 350 250 1950
317 XBD9.0/320G-CDS 320 90 400 1450 85 350 250 990
318 XBD10.0/320G-CDS 320 100 450 1450 83.5 300 250 1215
319 XBD16.0/320G-CDS 320 160 900 1450 78 350 250 1950
320 XBD6.0/330G-CDS 330 60 280 1450 87 300 250 930
321 XBD18.0/330G-CDS 330 180 1000 1450 78 350 250 1950
322 XBD6.6/350G-CDS 350 66 355 1450 84 350 250 1400
323 XBD11.0/350G-CDS 350 110 560 1450 84 300 250 1215

Compliance & Certifications

Mandatory Fire Certification: Strictly manufactured per GB 6245-2006. Passed type testing by National Fire Equipment Quality Supervision & Inspection Center. CCCF-certified models available upon request.

Performance Compliance Assurance: Flow-head curve, NPSHr, vibration/noise, & pressure strength 100% compliant. Bilingual third-party test reports available.

International Quality System: ISO 9001:2015 certified. Core pressure-bearing components evaluated per CE/PED 2014/68/EU, meeting EU/US market entry requirements.

Factory Inspection Standard: Every unit undergoes 1.5× rated pressure hydrostatic test (5-min hold) + G2.5 dynamic balance calibration + mechanical seal leakage test (≤3 drops/min), guaranteeing zero-leakage, zero-fault delivery.

OEM & CUSTOM

Fast Standard Delivery: Covers flow 50–3000 m³/h, head 20–150 m. Standard QT450 ductile iron + SiC seals. Technical confirmation & sample prototyping within 72 hours.

Deep Customization Capabilities:

Material Upgrade: Wetted parts optional in 304/2Cr13 stainless steel or duplex steel for mildly corrosive, high-chloride, or high-reliability fire water.

Seals & Motors: Optional high-temp seals (up to 105℃), explosion-proof motors (Ex d IIB T4), IE4 ultra-efficiency or VFD-dedicated drives.

Structural Adaptation: Flange standard switching (GB/ANSI/DIN/JIS), reinforced base, pre-installed flexible joints, outdoor rain/soundproof canopies.

Intelligent Expansion: Pre-wired interfaces for pressure/flow/vibration sensors; supports integration with auto fire control cabinets, PLC primary/standby rotation modules, IoT cloud platforms.

Please contact us for customization inquiries. Our engineering team delivers process proposals within 48 hours.

Installation Guidelines

Installation Key Points:

1.Mount unit horizontally on concrete foundation. Tighten anchor bolts symmetrically. Ensure shaft horizontal deviation ≤0.05 mm/m to prevent premature bearing wear from uneven loading.

2.Install flexible expansion joints at inlet/outlet. Provide independent pipe supports. Never transfer pipe weight or thermal stress to pump flanges.

3.Motor junction box faces outward. Route cable in conduit. Grounding resistance ≤4 Ω. Manually rotate shaft 3 turns to confirm smooth, friction-free rotor movement.

4.Open top vent valve to fill pump with media. Lock valve after confirming no air remains. Jog test to verify rotation (clockwise from drive end).

Commissioning Process: Prime & vent → Jog test for direction → No-load run 10 min → Slowly open discharge valve to rated duty → Record current/pressure/vibration/bearing temp data → Acceptance sign-off.

Request the “XBD-CDS Horizontal Split-Case Double Suction Fire Pump Set Installation & Maintenance Manual” (PDF/English version) for complete dimensional drawings, flange specs, and commissioning logs.

FAQ

Q1: How does double-suction design significantly improve cavitation performance (lower NPSHr)?

Symmetrical inlet halves single-side flow, reducing inlet velocity by >50%. Combined with CFD-optimized impeller inlet angle, tested NPSHr drops 30% vs. single-suction pumps, greatly enhancing cavitation resistance.

Q2: How does horizontal split-case design enable “maintenance without disconnecting pipes”?

After loosening upper casing bolts, the top cover lifts directly off. The rotor assembly (impeller/shaft/bearings/seals) is fully exposed for maintenance without disturbing inlet/outlet connections.

Q3: How to choose between QT450 ductile iron and 304/2Cr13 stainless steel?

QT450 suits standard clean water fire systems (cost-effective, high strength). 304/2Cr13 suits municipal/industrial networks with trace chlorides, mild corrosion, or high-reliability demands.

Q4: Why does short bearing span ensure vibration ≤4.5 mm/s?

Shortened span reduces shaft deflection. Combined with G2.5 dynamic balance & heavy-duty self-aligning roller bearings, it suppresses critical speed resonance. Tested vibration ≤4.5 mm/s across all duties.

Q5: How to prevent water hammer & pressure fluctuation in dual-source systems with electric pumps?

Outlet equipped with slow-closing check valve + motorized butterfly valve linkage. Control cabinet runs “pressure PID closed-loop + VFD soft-start” logic for bumpless primary/standby switching, maintaining ±0.05 MPa stability.

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