Professional 40mm Non-Return Valve – SPX040NRV

Product Overview

As a retailer of hot tub spa parts, I present this high-capacity 40mm non-return valve, engineered for reliable backflow prevention in larger spa and pool systems. This professional-grade valve delivers enhanced flow capacity with dependable one-way operation.

Key Features

• Heavy-duty spring mechanism
• Large-capacity design
• Industrial sealing system
• Optimized cracking pressure
• Maximum chemical resistance
• Professional UV protection
• Advanced noise suppression
• Universal mounting system

Applications

Engineered for:

• Main circulation systems
• High-flow equipment protection
• Large filtration networks
• Commercial pump systems
• Heat exchanger protection
• Multiple pump installations
• Critical control points

Technical Advantages

The 40mm design provides substantial flow capacity while maintaining excellent backflow protection. The industrial-grade spring mechanism ensures reliable operation under demanding conditions.

Technical Specifications

Specification	Value
Size	40mm
Valve Type	Non-Return
Body Material	Commercial PVC
Spring Material	316 Stainless Steel
Seal Material	EPDM
Temperature Range	0°C to 60°C
Maximum Working Pressure	10 bar
Cracking Pressure	0.025 bar
Connection Type	Solvent weld

Installation Benefits

• Commercial size standard
• All-position mounting
• Minimal maintenance design
• System integration ready
• Professional installation compatibility

Design Features

• Industrial spring system
• Clear flow indicators
• Optimized body design
• Silent operation technology
• Enhanced flow path

Performance Characteristics

• Superior backflow prevention
• Low pressure drop
• Immediate response
• Quiet operation
• Extended service life

Installation Guidelines

• Direction arrow critical
• Professional solvent welding
• Support requirements
• Service access planning
• Multiple mounting options

Maintenance Features

• Simple component design
• Easy inspection access
• Efficient cleaning process
• Reliable mechanism
• Low maintenance needs

Technical Benefits

• Maximum flow capacity
• Dependable sealing
• Professional sizing
• Equipment protection
• Consistent performance

Operation Parameters

• Function testing required
• Regular inspection needed
• System cleanliness essential
• Proper orientation critical
• Access space requirements

Best Practices

• Flow direction verification
• Professional installation
• Regular maintenance
• Clean system operation
• Adequate support

Performance Monitoring

• Regular operation checks
• Pressure monitoring
• Flow pattern observation
• Noise level assessment
• Seal inspection

Leaflet

• Leaflet Solvent bushing for PVC-U spring chec…