♨️ LX EA450 Circulation Pump with Optional Air Switch – 1.5 HP Single Speed

Powerful, High-Flow Circulation for Crystal Clear Spa Water and Relaxing Hydrotherapy

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💧 Product Overview

The LX EA450 is a robust 1.5 HP single-speed circulation pump engineered for hot tubs, spas, and whirlpool baths requiring superior water flow and filtration performance. Manufactured by LX (Lingxiao), one of the world’s leading spa pump producers, the EA450 delivers an impressive maximum flow rate of 360 litres per minute, making it ideal for larger spas and swim spas with 8-12 jets.

Featuring a centre discharge wet end with self-draining capability, this pump ensures efficient water circulation through your heating and filtration systems. The thermally protected motor with built-in capacitor provides reliable operation, whilst the air-cooled design with rear cooling fan ensures optimal running temperatures even during extended use. The optional air switch compatibility makes it particularly versatile for whirlpool bath installations where manual operation is preferred.

Built to exacting standards with IPX5 protection rating and Class F insulation, the EA450 represents outstanding value for spa owners seeking professional-grade performance at a competitive price point.

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⭐ Key Features

✅ 1.5 HP Motor Power – Delivers 1.1 kW of consistent power for demanding circulation requirements

✅ High Flow Rate – Maximum 360 L/min ensures thorough water circulation and effective filtration

✅ Single Speed Operation – Reliable, straightforward performance with 2,900 RPM motor speed

✅ Centre Discharge Design – Self-draining wet end prevents water damage when pump is switched off

✅ 1.5″ Plumbing Connections – Universal 1.5-inch suction and discharge ports with 62mm OD threaded fittings

✅ Thermally Protected Motor – Built-in thermal overload protection extends motor lifespan

✅ Air-Cooled Motor – Rear cooling fan with finned design for optimal heat dissipation

✅ IPX5 Protection Rating – Suitable for spa environment with protection against water jets

✅ Optional Air Switch Compatible – Can be fitted with TBS106A air switch for manual whirlpool bath control

✅ Class F Insulation – Professional-grade motor insulation for longevity and safety

✅ 15µF Capacitor Included – Ensures reliable motor starting and operation

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🔧 Technical Specifications

Specification	Value
Pump Type	Circulation Pump
Motor Power	1.5 HP / 1.1 kW
Speed Settings	Single Speed
Flow Rate (Maximum)	360 L/min
Maximum Head	16 m
Voltage	230V
Frequency	50 Hz
Amperage	5.8 A
Motor Speed	2,900 RPM
Wet End Configuration	1.5 inch
Discharge Port	1.5 inch (62mm OD thread)
Suction Port	1.5 inch (62mm OD thread)
Port Position	Centre Discharge
Dimensions (L × W × H)	420 × 185 × 255 mm
Capacitor	15 µF
Seal Type	Carbon/Ceramic/Viton Mechanical Seal
IP Rating	IPX5
Insulation Class	Class F
Thermal Protection	Built-in Thermal Protector

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⚡ Electrical Requirements

Electrical Specification	Requirement
Supply Voltage	230V
Frequency	50 Hz
Phase	Single Phase
Full Load Amperage	5.8 A
Capacitor Rating	15 µF
Cable Supply	3-core cable with ring terminals (included)

⚠️ IMPORTANT ELECTRICAL SAFETY NOTICE:

All electrical work must be carried out by a qualified electrician in accordance with UK wiring regulations (BS 7671). Hot tubs and spas require RCD protection (30mA) for safety. Never attempt electrical installation yourself unless you are a qualified professional. Incorrect installation may invalidate warranty and poses serious safety risks.

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🔄 Compatibility Guide

Plumbing Specifications

Connection	Size	Details
Suction Port	1.5 inch	62mm OD threaded connection
Discharge Port	1.5 inch	62mm OD threaded connection
Wet End Style	Centre Discharge	Self-draining design

This Pump Features:

📍 Wet End: 1.5 inch centre discharge
📍 Discharge: 1.5 inch (62mm OD threaded)
📍 Suction: 1.5 inch (62mm OD threaded)
📍 Discharge Position: Centre discharge

Compatible Spa Types:

✅ Chinese manufactured hot tubs with 8-12 jets
✅ Whirlpool baths (with optional air switch)
✅ Medium to large spas requiring high-flow circulation
✅ Swim spas with standard 1.5″ plumbing

Suitable Replacement For:

This 1.5 HP LX EA450 circulation pump can replace many other brands of spa pumps with matching plumbing connections, including:

• Aqua-Flo circulation pumps
• Waterway circulation pumps
• Balboa circulation pumps
• Century Laser pumps
• AO Smith pumps
• Vico pumps
• Sta-Rite pumps
• Emerson pumps

⚠️ Note: Always verify plumbing sizes, electrical specifications, and mounting dimensions match your existing pump before ordering.

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🛠️ Installation Requirements

Mounting Specifications

Requirement	Specification
Mounting Position	Horizontal
Base	Solid, level, vibration-dampening surface
Ventilation	Adequate clearance for motor cooling fan
Access	Sufficient space for maintenance and seal replacement

Plumbing Connections

Connection	Size	Type
Suction	1.5 inch	62mm OD threaded
Discharge	1.5 inch	62mm OD threaded
Union Type	Standard spa unions compatible

Installation Notes

⚠️ Pump must be installed below water level (flooded suction) to ensure proper priming

⚠️ Never run the pump dry – this causes immediate seal damage and potential motor failure

⚠️ Ensure proper electrical bonding to earth in accordance with BS 7671

⚠️ The wet end position is adjustable – unscrew the four motor screws to rotate the pump body for left or right discharge orientation

⚠️ Electrical cable supplied with 3-core cable and ring terminals – if connection type differs, use cable from your existing pump or purchase appropriate connector

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🔧 Maintenance Guide

Routine Maintenance Schedule

Task	Frequency	Notes
Check for leaks	Monthly	Inspect around mechanical seal and union connections
Inspect unions	Monthly	Tighten if necessary – do not overtighten
Clean strainer/filter	As needed	Remove debris to maintain flow rate
Check amperage draw	Annually	Should match 5.8A rating – higher indicates wear
Inspect motor vents	Quarterly	Keep rear cooling fan and vents clear of debris
Check mounting bolts	Quarterly	Tighten if vibration has caused loosening
Verify flow rate	Annually	Reduced flow may indicate impeller wear

Warning Signs – Replace Pump If:

⚠️ Unusual noise such as grinding, screeching, or humming
⚠️ Water leaking from the mechanical seal area
⚠️ Motor trips the circuit breaker repeatedly
⚠️ Significantly reduced water flow despite clean filters
⚠️ Motor overheating or shutting down on thermal protection
⚠️ Visible corrosion or damage to the wet end

Seal Replacement Information

Seal Specification	Details
Seal Type	Carbon/Ceramic/Viton Mechanical Seal
Compatible Seal	LX Type A Seal (2008 onwards)
Replacement Indication	Water leaking from pump shaft area

💡 Tip: Replace the mechanical seal at the first sign of leakage to prevent motor damage. Seal kits are readily available and relatively inexpensive compared to full pump replacement.

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🛁 Ideal Applications

Application	Suitability	Notes
♨️ Hot Tub Circulation	Excellent	Ideal for spas with 8-12 jets
♨️ Spa Filtration	Excellent	High flow rate ensures effective filtration
🛁 Whirlpool Bath	Excellent	Compatible with air switch for manual control
♨️ Swim Spa	Good	Suitable for circulation duties in larger installations
♨️ Massage Jets	Good	Can power massage jets in whirlpool baths

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❓ Frequently Asked Questions

Q: What horsepower is the LX EA450 pump?

A: The LX EA450 is a 1.5 HP (1.1 kW) circulation pump with a single-speed motor running at 2,900 RPM.

Q: Will this pump fit my hot tub?

A: The EA450 features 1.5-inch suction and discharge ports with 62mm OD threaded connections and a centre discharge wet end. Verify your existing pump has matching plumbing sizes and a compatible mounting arrangement before ordering.

Q: What voltage does this pump require?

A: The EA450 requires 230V / 50Hz single-phase power supply. All electrical installation must be carried out by a qualified electrician in accordance with BS 7671 regulations.

Q: Is this pump suitable for whirlpool baths?

A: Yes, the EA450 is commonly used in whirlpool baths. It can be fitted with an optional TBS106A air switch for manual on/off control, which is a popular feature for bath applications.

Q: What is the maximum flow rate?

A: The EA450 delivers a maximum flow rate of 360 litres per minute with a maximum head of 16 metres, making it suitable for larger spas and swim spas.

Q: What size are the plumbing connections?

A: Both suction and discharge ports are 1.5 inches with a 62mm outside diameter threaded connection. The pump features a centre discharge configuration.

Q: Can I rotate the wet end for different plumbing orientations?

A: Yes, the pump body is adjustable. Unscrew the four motor bolts to rotate the wet end for left or right discharge orientation to match your existing plumbing.

Q: What seal does this pump use?

A: The EA450 uses a Carbon/Ceramic/Viton mechanical seal (LX Type A seal for pumps manufactured from 2008 onwards). Replacement seals are readily available.

Q: How do I know if my pump needs replacing?

A: Signs include unusual noises (grinding, screeching), water leaking from the seal area, reduced water flow, the motor tripping the circuit breaker repeatedly, or the motor overheating and shutting down.

Q: What brands can this pump replace?

A: The EA450 can replace many circulation pumps with matching 1.5-inch plumbing connections from brands including Aqua-Flo, Waterway, Balboa, Century Laser, AO Smith, Vico, Sta-Rite, and Emerson.

🏆 Why Choose the LX EA450

✅ Powerful Performance – 1.5 HP motor delivers 360 L/min flow rate for effective circulation

✅ Proven Reliability – LX pumps are fitted as standard in thousands of spas worldwide

✅ Thermally Protected – Built-in thermal overload protection prevents motor damage

✅ Efficient Cooling – Air-cooled motor with rear fan design ensures cooler running temperatures

✅ Versatile Installation – Adjustable wet end orientation and optional air switch compatibility

✅ Quality Construction – IPX5 rated with Class F insulation for demanding spa environments

✅ Easy Replacement – Compatible with multiple major pump brands for straightforward upgrades

✅ Self-Draining Design – Centre discharge wet end protects against water damage when switched off

🤝 Why Buy From Parts4Tubs

✅ UK-Based Company – Local support from knowledgeable spa specialists

✅ Fast UK Delivery – Quick despatch to get your spa running again

✅ Expert Advice – Our team can help with compatibility questions and technical queries

✅ Competitive Pricing – Trade-quality parts at fair prices

✅ Full Warranty Support – Comprehensive warranty backing on all products

✅ Easy Returns – Hassle-free returns within 30 days if unused

✅ Replacement Parts Available – Seals, capacitors, and other spares in stock

✅ Trusted Supplier – Serving the UK spa industry with quality parts

✨ Summary

The LX EA450 is a powerful 1.5 HP single-speed circulation pump delivering 360 L/min flow rate for effective hot tub and whirlpool bath circulation. Featuring 230V/50Hz operation, 1.5-inch plumbing connections, centre discharge wet end, and thermal motor protection, it’s an ideal replacement for worn pumps in Chinese manufactured spas with 8-12 jets. The optional air switch compatibility makes it perfect for whirlpool bath applications. Order from Parts4Tubs for fast UK delivery and expert support.