Product Overview

The LC Series Vertical Long-Shaft Deep Well Pump is a multistage deep-well water extraction equipment designed per national pump design and testing standards, featuring a wellhead-mounted motor with concentric long-shaft drive, modularly composed of centrifugal/mixed-flow impellers, diffuser casings, column pipes, drive shafts, and pump base, enabling stable high-flow high-head delivery.

Resolves four critical operational challenges in deep-well applications: submersible motor failure and maintenance difficulty in underwater environments, vibration and wear caused by misalignment in long-shaft transmission, suboptimal energy efficiency under high-flow high-head conditions, and extended installation/maintenance cycles due to low modularity.

Suitable for cooling water intake in thermal/hydropower plants, raw water transfer in municipal waterworks, agricultural deep-well irrigation, municipal pipeline boosting, industrial process water supply, and emergency fire protection applications requiring deep-well deployment, long-cycle operation, and high-reliability performance.

Product Advantages

Extended Service Life: Bronze-base bearing support + 2Cr13/304 stainless steel transmission shaft resist wear & misalignment. Combined with G2.5 dynamically balanced impeller, design lifespan ≥20 years—over 35% longer than standard long-shaft deep-well pumps.

Significant Energy Savings: CFD-optimized hydraulic model + optional enclosed gearbox (transmission efficiency ≥95%) achieve ≥80% rated efficiency. Combined with wide high-efficiency range design, annual electricity costs drop by 20%–30%.

Lower Maintenance Costs: Integrated pump base + elevated motor bracket design enables mechanical seal replacement without disconnecting column pipes. Single technician completes core component maintenance within 2 hours, reducing labor costs by 50%.

Lightweight & Compact Design: Modular column pipes + lightweight transmission shaft assembly reduce overall weight by ~15% for equivalent head ratings, lowering wellhead load requirements & lifting complexity.

Faster Installation: Pre-aligned flanges + quick-install pump base enable vertical alignment & fixation on-site. Standard units reach commissioning readiness within 4 hours from positioning, compressing installation cycle by 40%.

Application Scenarios

Industrial Applications: Power plant cooling circulation, steel/metallurgy process water, mining drainage, chemical process water supply, supporting high-head, high-flow, continuous operation conditions.

Municipal Applications: Municipal waterworks deep-well intake, municipal network boosting, industrial park water supply integration, adapting to standard conditions: pH 6.5–8.5, H₂S ≤1.5 mg/L.

Agricultural Applications: Deep-well irrigation, farmland water conservancy, aquaculture water supply, supporting mobile/fixed deployment to meet seasonal peak water demand.

Emergency Applications: Fire backup systems, power-outage emergency water supply, off-grid independent water supply, achieving zero-delay response with diesel/dual-power control cabinets.

Media Compatibility: Non-corrosive clean water. Solid content ≤0.01% (by weight). pH 6.5–8.5, H₂S ≤1.5 mg/L, water temperature ≤40℃/104℉.

Technical Parameters

Model Designation

Product Structure Diagram

	No.	Material Name	Material
	1	Electric Motor	Component
	2	Motor Support Bracket	QT400-18
	3	Motor Coupling	HT200
	4	Mechanical Seal Gland	QT400-18
	5	Mechanical Seal	WC/SiC Mechanical Seal Faces
	6	Seal Positioning Ring	ZG235-450
	7	Discharge Head	Q400-18
	8	Shaft Sleeve	ZG235-450
	9	Thrust Roller Bearing	Bearing Steel
	10	Bearing Housing	QT400-18
	11	Pump Casing Support Bracket	QT400-18
	12	Casing Support Bearing	Copper Alloy
	13	Drive Shaft Coupling	ZG235-450
	14	Shaft	20Cr13
	15	Column Pipe Bearing	Copper Alloy
	16	Column Pipe Support Bracket	QT400-18
	17	Upper Diffuser	HT200
	18	Diffuser Bearing	Copper Alloy
	19	Tapered Adapter Sleeve	20Cr13
	20	Impeller	O6Cr19Ni10
	21	Intermediate Diffuser	HT200
	22	Suction Inlet Bearing	Copper Alloy
	23	Suction Inlet	HT200
	24	Suction Strainer	O6Cr19Ni10
	25	High-Pressure Thrust Bearing	Composite Material + Wear-Resistant Alloy Steel

Performance Data Table 1

Model	Number of Stages	Flow Rate	Head	Speed	Power	Efficiency	Downhole Pump Diameter	Column Pipe Diameter	Overall Dimensions
TYPE	N	m³h	H	r/min	kw	%	mm	DN	H2	H3
150LC5-7	4	5	28	2900	2.2	60	142	80	205	311
150LC5-7	5	5	35	2900	2.2	60	142	80	205	311
150LC5-7	6	5	42	2900	2.2	60	142	80	205	311
150LC5-7	7	5	49	2900	3	60	142	80	205	346
150LC5-7	8	5	56	2900	3	60	142	80	205	346
150LC5-7	9	5	63	2900	3	60	142	80	205	346
150LC5-7	10	5	70	2900	3	60	142	80	205	346
150LC5-7	11	5	77	2900	3	60	142	80	205	346
150LC5-7	12	5	84	2900	3	60	142	80	205	346
150LC5-7	13	5	91	2900	3	60	142	80	205	346
150LC5-7	14	5	98	2900	4	60	142	80	205	392
150LC5-7	15	5	105	2900	4	60	142	80	205	392
150LC5-7	16	5	112	2900	4	60	142	80	205	392
150LC5-7	17	5	119	2900	4	60	142	80	205	392
150LC5-7	18	5	126	2900	4	60	142	80	205	392
150LC5-7	19	5	133	2900	4	60	142	80	205	392
150LC5-7	20	5	140	2900	5.5	60	142	80	265	390
175LC10-15	1	10	15	2900	3	62	165	80	205	346
175LC10-15	2	10	30	2900	4	62	165	80	205	392
175LC10-15	3	10	45	2900	5.5	62	165	80	265	390
175LC10-15	4	10	60	2900	5.5	62	165	80	265	390
175LC10-15	5	10	75	2900	5.5	62	165	80	265	390
175LC10-15	6	10	90	2900	7.5	62	165	80	265	390
175LC10-15	7	10	105	2900	7.5	62	165	80	265	390
175LC10-15	8	10	120	2900	11	62	165	80	290	498
175LC10-15	9	10	135	2900	11	62	165	80	290	498
175LC10-15	10	10	150	2900	11	62	165	80	290	498
175LC10-15	11	10	165	2900	15	62	165	80	290	498
175LC10-15	12	10	180	2900	15	62	165	80	290	498
175LC10-15	13	10	195	2900	15	62	165	80	290	498
175LC10-15	14	10	210	2900	15	62	165	80	290	498
175LC10-15	15	10	225	2900	18.5	62	165	80	290	524

Performance Data Table 2

Model	Number of Stages	Flow Rate	Head	Speed	Power	Efficiency	Downhole Pump Diameter	Column Pipe Diameter	Overall Dimensions
TYPE	N	m³h	H	r/min	kw	%	mm	DN	H2	H3
175LC10-15	16	10	240	2900	18.5	62	165	80	290	524
175LC20-13	2	20	26	2900	4	65	165	80	205	392
175LC20-13	3	20	39	2900	5.5	65	165	80	265	390
175LC20-13	4	20	52	2900	7.5	65	165	80	265	390
175LC20-13	5	20	65	2900	7.5	65	165	80	265	390
175LC20-13	6	20	78	2900	11	65	165	80	290	498
175LC20-13	7	20	91	2900	11	65	165	80	290	498
175LC20-13	8	20	104	2900	15	65	165	80	290	498
175LC20-13	9	20	117	2900	15	65	165	80	290	498
175LC20-13	10	20	130	2900	15	65	165	80	290	498
175LC20-13	11	20	143	2900	15	65	165	80	290	498
175LC20-13	12	20	156	2900	18.5	65	165	80	290	524
175LC20-13	13	20	169	2900	18.5	65	165	80	290	524
175LC20-13	14	20	182	2900	22	65	165	80	290	578
175LC20-13	15	20	195	2900	22	65	165	80	290	578
175LC20-13	16	20	208	2900	22	65	165	80	290	578
175LC20-13	17	20	221	2900	30	65	165	80	290	669
175LC20-13	18	20	234	2900	30	65	165	80	290	709
175LC20-13	19	20	247	2900	30	65	165	80	290	669
175LC20-13	20	20	260	2900	37	65	165	80	290	669
175LC32-12	2	32	24	2900	5.5	67	165	80	265	390
175LC32-12	3	32	36	2900	7.5	67	165	80	265	390
175LC32-12	4	32	48	2900	11	67	165	80	290	498
175LC32-12	5	32	60	2900	11	67	165	80	290	498
175LC32-12	6	32	72	2900	15	67	165	80	290	498
175LC32-12	7	32	84	2900	15	67	165	80	290	498
175LC32-12	8	32	96	2900	18.5	67	165	80	290	524
175LC32-12	9	32	108	2900	18.5	67	165	80	290	524
175LC32-12	10	32	120	2900	22	67	165	80	290	578
175LC32-12	11	32	132	2900	22	67	165	80	290	578
175LC32-12	12	32	144	2900	30	67	165	80	290	669
175LC32-12	13	32	156	2900	30	67	165	80	290	669

Performance Data Table 3

Model	Number of Stages	Flow Rate	Head	Speed	Power	Efficiency	Downhole Pump Diameter	Column Pipe Diameter	Overall Dimensions
TYPE	N	m³h	H	r/min	kw	%	mm	DN	H2	H3
175LC32-12	14	32	168	2900	30	67	165	80	290	669
175LC32-12	15	32	180	2900	30	67	165	80	290	669
175LC32-12	16	32	192	2900	37	67	165	80	290	669
175LC32-12	17	32	204	2900	37	67	165	80	290	669
175LC32-12	18	32	216	2900	45	67	165	80	315	709
175LC32-12	19	32	228	2900	45	67	165	80	315	709
175LC32-12	20	32	240	2900	45	67	165	80	315	709
200LC50-13	2	50	26	2900	7.5	69	185	80	265	390
200LC50-13	3	50	39	2900	11	69	185	80	290	498
200LC50-13	4	50	52	2900	15	69	185	80	290	498
200LC50-13	5	50	65	2900	18.5	69	185	80	290	524
200LC50-13	6	50	78	2900	18.5	69	185	80	290	524
200LC50-13	7	50	91	2900	22	69	185	80	290	578
200LC50-13	8	50	104	2900	30	69	185	80	290	669
200LC50-13	9	50	117	2900	30	69	185	80	290	669
200LC50-13	10	50	130	2900	30	69	185	80	290	669
200LC50-13	11	50	143	2900	37	69	185	80	290	669
200LC50-13	12	50	156	2900	37	69	185	80	290	669
200LC50-13	13	50	169	2900	37	69	185	80	290	669
200LC50-13	14	50	182	2900	45	69	185	80	315	709
200LC50-13	15	50	195	2900	45	69	185	80	315	709
200LC50-13	16	50	208	2900	55	69	185	80	345	770
200LC50-13	17	50	221	2900	55	69	185	80	345	770
200LC50-13	18	50	234	2900	55	69	185	80	345	770
200LC50-13	19	50	247	2900	75	69	185	80	345	842
200LC50-13	20	50	260	2900	75	69	185	80	345	842
200LC80-18	2	80	36	2900	15	72	185	100	290	498
200LC80-18	3	80	54	2900	22	72	185	100	290	578
200LC80-18	4	80	72	2900	30	72	185	100	290	669
200LC80-18	5	80	90	2900	30	72	185	100	290	669
200LC80-18	6	80	108	2900	37	72	185	100	290	669
200LC80-18	7	80	126	2900	45	72	185	100	315	709

Performance Data Table 4

Model	Number of Stages	Flow Rate	Head	Speed	Power	Efficiency	Downhole Pump Diameter	Column Pipe Diameter	Overall Dimensions
TYPE	N	m³h	H	r/min	kw	%	mm	DN	H2	H3
200LC80-18	8	80	144	2900	55	72	185	100	345	770
200LC80-18	9	80	162	2900	75	72	185	100	345	842
200LC80-18	10	80	180	2900	75	72	185	100	345	842
200LC80-18	11	80	198	2900	90	72	185	100	345	892
200LC80-18	12	80	216	2900	90	72	185	100	345	892
200LC80-18	13	80	234	2900	110	72	185	100	345	1054
250LC100-18	2	100	36	2900	18.5	73	235	100	290	524
250LC100-18	3	100	54	2900	30	73	235	100	290	669
250LC100-18	4	100	72	2900	37	73	235	100	290	669
250LC100-18	5	100	90	2900	45	73	235	100	315	709
250LC100-18	6	100	108	2900	45	73	235	100	315	709
250LC100-18	7	100	126	2900	55	73	235	100	345	770
250LC100-18	8	100	144	2900	75	73	235	100	345	842
250LC100-18	9	100	162	2900	75	73	235	100	345	842
250LC100-18	10	100	180	2900	90	73	235	100	345	892
250LC100-18	11	100	198	2900	90	73	235	100	345	892
250LC100-18	12	100	216	2900	110	73	235	100	345	1054
250LC100-18	13	100	234	2900	132	73	235	100	345	1164
250LC130-8.5	4	130	34	1450	18.5	75	242	125	295	578
250LC130-8.5	5	130	42.5	1450	22	75	242	125	295	616
250LC130-8.5	6	130	51	1450	30	75	242	125	320	669
250LC130-8.5	7	130	59.5	1450	37	75	242	125	320	684
250LC130-8.5	8	130	68	1450	37	75	242	125	320	684
250LC130-8.5	9	130	76.5	1450	45	75	242	125	320	709
250LC130-8.5	10	130	85	1450	45	75	242	125	320	709
250LC130-8.5	11	130	93.5	1450	55	75	242	125	345	770
250LC130-8.5	12	130	102	1450	55	75	242	125	345	770
250LC130-8.5	13	130	110.5	1450	75	75	242	125	345	842
300LC160-11.5	3	160	34.5	1450	22	78	295	150	295	616
300LC160-11.5	4	160	46	1450	30	78	295	150	320	669
300LC160-11.5	5	160	57.5	1450	37	78	295	150	320	684
300LC160-11.5	6	160	69	1450	45	78	295	150	320	709

Performance Data Table 5

Model	Number of Stages	Flow Rate	Head	Speed	Power	Efficiency	Downhole Pump Diameter	Column Pipe Diameter	Overall Dimensions
TYPE	N	m³h	H	r/min	kw	%	mm	DN	H2	H3
300LC160-11.5	7	160	80.5	1450	55	78	295	150	345	770
300LC160-11.5	8	160	92	1450	75	78	295	150	345	842
300LC160-11.5	9	160	103.5	1450	75	78	295	150	345	842
300LC160-11.5	10	160	115	1450	75	78	295	150	345	842
300LC160-11.5	11	160	126.5	1450	90	78	295	150	345	893
300LC160-11.5	12	160	138	1450	90	78	295	150	345	893
300LC220-13.5	2	220	27	1450	22	79	295	150	295	616
300LC220-13.5	3	220	40.5	1450	37	79	295	150	320	684
300LC220-13.5	4	220	54	1450	45	79	295	150	320	709
300LC220-13.5	5	220	67.5	1450	55	79	295	150	345	770
300LC220-13.5	6	220	81	1450	75	79	295	150	345	842
300LC220-13.5	7	220	94.5	1450	90	79	295	150	345	893
300LC220-13.5	8	220	108	1450	90	79	295	150	345	893
300LC220-13.5	9	220	121.5	1450	110	79	295	150	345	1054
350LC300-15	2	300	30	1450	37	80	346	200	320	684
350LC300-15	3	300	45	1450	55	80	346	200	345	770
350LC300-15	4	300	60	1450	75	80	346	200	345	842
350LC300-15	5	300	75	1450	90	80	346	200	345	893
350LC300-15	6	300	90	1450	110	80	346	200	345	1054
350LC300-15	7	300	105	1450	132	80	346	200	345	1164
350LC300-15	8	300	120	1450	160	80	346	200	345	1164
400LC400-18	1	400	18	1450	37	78	430	200	320	684
400LC400-18	2	400	36	1450	75	78	430	200	345	842
400LC400-18	3	400	54	1450	90	78	430	200	345	893
400LC400-18	4	400	72	1450	132	78	430	200	345	1164
400LC400-18	5	400	90	1450	160	78	430	200	345	1164
400LC400-18	6	400	108	1450	200	78	430	200	345	1164
400LC400-18	7	400	126	1450	220	78	430	200	450	1346
400LC400-18	8	400	144	1450	250	78	430	200	450	1346
400LC400-18	9	400	162	1450	280	78	430	200	450	1346
400LC500-16	1	500	16	1450	37	78	430	200	320	684
400LC500-16	2	500	32	1450	75	78	430	200	345	842

Performance Data Table 6

Model	Number of Stages	Flow Rate	Head	Speed	Power	Efficiency	Downhole Pump Diameter	Column Pipe Diameter	Overall Dimensions
TYPE	N	m³h	H	r/min	kw	%	mm	DN	H2	H3
400LC500-16	3	500	48	1450	90	78	430	200	345	893
400LC500-16	4	500	64	1450	132	78	430	200	345	1164
400LC500-16	5	500	80	1450	160	78	430	200	345	1164
400LC500-16	6	500	96	1450	200	78	430	200	345	1164
400LC500-16	7	500	112	1450	220	78	430	200	450	1346
400LC500-16	8	500	128	1450	250	78	430	200	450	1346
400LC500-16	9	500	144	1450	280	78	430	200	450	1346
400LC500-16	10	500	160	1450	315	78	430	200	450	1346
400LC600-14	1	600	14	1450	37	78	430	250	320	684
400LC600-14	2	600	28	1450	75	78	430	250	345	842
400LC600-14	3	600	42	1450	90	78	430	250	345	893
400LC600-14	4	600	56	1450	132	78	430	250	345	1164
400LC600-14	5	600	70	1450	160	78	430	250	345	1164
400LC600-14	6	600	84	1450	200	78	430	250	345	1164
400LC600-14	7	600	98	1450	220	78	430	250	450	1346
400LC600-14	8	600	112	1450	250	78	430	250	450	1346
400LC600-14	9	600	126	1450	280	78	430	250	450	1346
400LC600-14	10	600	140	1450	315	78	430	250	450	1346
500LC700-21	1	700	21	1450	75	78	540	300	345	842
500LC700-21	2	700	42	1450	160	78	540	300	345	1164
500LC700-21	3	700	63	1450	220	78	540	300	450	1346
500LC700-21	4	700	84	1450	280	78	540	300	450	1346
500LC700-21	5	700	105	1450	355	78	540	300	450	1346
500LC800-20	1	800	20	1450	75	78	540	300	345	842
500LC800-20	2	800	40	1450	160	78	540	300	345	1164
500LC800-20	3	800	60	1450	220	78	540	300	450	1346
500LC800-20	4	800	80	1450	280	78	540	300	450	1346
500LC800-20	5	800	100	1450	355	78	540	300	450	1346
500LC1000-18	1	1000	18	1450	75	78	540	300	345	842
500LC1000-18	2	1000	36	1450	160	78	540	300	345	1164
500LC1000-18	3	1000	54	1450	220	78	540	300	450	1346
500LC1000-18	4	1000	72	1450	280	78	540	300	450	1346
500LC1000-18	5	1000	90	1450	355	78	540	300	450	1346

Operating Conditions  

Media Requirements：

Media type: Non-corrosive clean water

Solid content: ≤0.01% (by weight)

Water quality: pH 6.5–8.5; H₂S ≤1.5 mg/L

Temperature Limits：

Media/Ambient temperature: Both ≤40°C (≤104°F)

System Limits：

Max. head: ≤300 m (subject to configuration)

Well conditions: Vertical wellbore; bi-directional deflection ≤1°

Installation Requirements：

Mounting: Vertical wellhead installation with horizontally fixed pump base

Drive mode: Long-shaft concentric direct drive (enclosed gearbox optional)

Custom Solutions: For special conditions (high temperature / strong corrosion / high sand content / ultra-deep wells), consult our engineering team before selection. Tailored pump solutions available.

Compliance & Certifications

 

National Standard Compliance: Strictly manufactured per GB/T 2816-2014 “Submersible pumps for wells” & JB/T 3564-2015 “Long-shaft deep-well pumps”. Hydraulic performance & mechanical safety 100% compliant. Third-party full performance curve test reports available.

Material & Environmental Certification: Wetted parts comply with RoHS/REACH directives. Stainless steel materials supplied with GB/T 3280/ASTM A240 certificates, ensuring zero heavy metal leaching risk.

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) + long-shaft concentricity calibration (radial runout ≤0.15 mm) + G2.5 dynamic balance calibration, guaranteeing zero-vibration, zero-leakage delivery.

OEM & CUSTOM

Fast Standard Delivery: Covers flow 50–2000 m³/h, head 30–300 m. Standard ductile iron/2Cr13 stainless steel + bronze-base bearings. Technical confirmation & sample prototyping within 72 hours.

Deep Customization Capabilities:

Material Upgrade: Wetted parts optional in 304/316/duplex 2205 stainless steel for high-chloride, mild acid/alkali, or seawater desalination pretreatment conditions.

Transmission System: Optional oil-lubricated enclosed gearbox, universal joint coupling, sand-resistant bearing assembly for sandy water or ultra-deep well (>200 m) conditions.

Structural Adaptation: Custom column pipe length, pump base flange standard switching (GB/ANSI/DIN), wellhead reinforcement brackets, rain-proof/anti-corrosion coating customization.

Intelligent Expansion: Pre-wired interfaces for pressure/flow/vibration sensors; supports integration with VFD cabinets, IoT remote monitoring, multi-pump rotation modules.

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

 

Installation Guidelines

Installation Key Points:

1.Fix pump base horizontally on wellhead foundation. Tighten anchor bolts symmetrically. Ensure pump shaft verticality ≤0.5 mm/m to prevent long-shaft misalignment wear.

2.Connect column pipes via flanges. Install one pipe clamp per 10 m to ensure uniform axial load distribution. Never transmit pipe stress to pump body.

3.Use pre-aligned couplings for transmission shaft connection. Tighten bolts symmetrically per torque requirements. Manually rotate shaft 3 turns after initial installation to confirm no binding.

4.Motor junction box faces outward. Secure cable along well wall. Grounding resistance ≤4 Ω. Prime pump before initial startup. Jog test to verify rotation (clockwise from motor 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.

Request the “LC Long-Shaft Deep-Well Pump Installation & Maintenance Manual” (PDF/English version) for complete dimensional drawings, column pipe connection specs, and commissioning logs.

FAQ

Q1: How does long-shaft concentric transmission prevent bearing misalignment wear from radial runout?

Uses bronze-base self-lubricating bearings + support guide bearings every 6–8 m. Combined with G2.5 balanced impeller & pre-aligned coupling, tested radial runout ≤0.15 mm, bearing lifespan ≥20,000 hours.

Q2: How does maintenance-free design enable “mechanical seal replacement without disconnecting column pipes”?

Integrated pump base + elevated motor bracket design. After loosening pump base bolts, rotor assembly can be lifted 300–500 mm as a unit, fully exposing mechanical seals for replacement without disconnecting column pipes.

Q3: How to protect transmission system in sandy water (solids ≤0.01%)?

Standard bronze-base bearings + sand-resistant shaft sleeves. Optional tungsten carbide shaft sleeves + enclosed oil-lubricated gearbox. Tested: transmission efficiency decay ≤2%/year in 0.01% sand content, extending lifespan 3×.

Q4: What structural reinforcements are needed for ultra-deep wells (>200 m)?

Recommendations: ① Upgrade transmission shaft to 304 stainless steel + add guide bearings every 4–6 m; ② Increase column pipe wall thickness by 10%–15%; ③ Reinforce wellhead foundation + add anti-sway brackets. Provide well depth for custom evaluation.

Q5: How does enclosed gearbox achieve ≥95% transmission efficiency with fast heat dissipation?

Uses spiral bevel gears + forced oil circulation lubrication. Gear meshing precision reaches ISO 1328-1 Grade 6. Combined with external heat sink design, tested full-load efficiency ≥95%, temperature rise ≤35 K.

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