25mm Grey PVC Check Valve P/P

Product Overview

This high-performance check valve is engineered to prevent backflow in hot tub and spa plumbing systems. With plain socket ends (P/P) on both sides, this valve ensures unidirectional flow, protecting pumps and equipment while maintaining system efficiency.

Key Features

• Durable grey PVC construction
• Spring-loaded design for reliable operation
• Low-resistance flow characteristics
• Chemical and UV resistant
• Double plain socket configuration
• Silent operation design

Applications

Essential for:

• Pump protection systems
• Hot tub filtration circuits
• Multi-pump installations
• Gravity-fed systems
• Equipment protection
• Preventing water backflow

Technical Specifications

Specification	Detail
Material	Grey PVC
Size	25mm
Connection Type	Plain/Plain
Temperature Rating	-5°C to 60°C
Pressure Rating	PN16
Opening Pressure	0.025 bar
Flow Direction	Marked on valve
Spring Material	Stainless Steel 316
Seal Material	EPDM
Standards Compliance	BS EN ISO 1452

Operating Principles

The valve operates using a spring-loaded mechanism that:

• Opens automatically when water flows in the correct direction
• Closes instantly when flow stops or reverses
• Maintains consistent pressure requirements
• Provides reliable sealing when closed

Installation Guidelines

Proper installation is crucial for optimal performance:

• Note flow direction arrow during installation
• Install horizontally or vertically (flow upwards)
• Ensure adequate support to prevent stress
• Allow sufficient straight pipe runs before and after valve

Performance Benefits

• Protects expensive pump equipment
• Prevents system drainage
• Maintains proper water circulation
• Reduces system maintenance
• Extends equipment lifespan
• Ensures efficient operation

System Integration

This check valve integrates seamlessly with standard 25mm PVC pipe systems commonly used in hot tub and spa installations. Particularly valuable in:

• Multiple pump systems
• Elevated equipment installations
• Complex plumbing configurations
• Automatic filling systems

Note: Always verify measurements and compatibility with your existing plumbing system before installation