TruDesign Aquavalve Black – Composite Manual Y-Valve (Marine)

Take full control of your onboard sanitation system with the TruDesign Aquavalve Black—a premium manual Y-diverter valve designed to safely manage waste flow on marine vessels.

Manufactured in New Zealand from glass-reinforced nylon composite, the Aquavalve delivers exceptional strength, durability, and resistance to corrosion and electrolysis, making it ideal for long-term use in harsh marine environments.

This valve allows you to divert black water either to a holding tank or directly overboard, depending on legal requirements and operating conditions—an essential feature for compliance with marine sanitation regulations in many regions.

Designed for reliability, the Aquavalve features smooth-operating silicone seals and a low-pressure rotor system, ensuring easy operation while maintaining a secure seal.

The lockable handle design enables compliance with “no discharge” zones, preventing accidental or illegal discharge when operating in restricted waters.

With compatibility across a wide range of Aquavalve hose tails (straight, 90°, and 120°), this valve provides flexible installation options—even in tight or complex plumbing layouts.

Key Features

• Manual Y-valve diverter – directs waste to tank or overboard
• Glass-reinforced nylon composite – strong, lightweight & durable
• Corrosion & electrolysis free – ideal for marine environments
• Lockable handle – supports compliance with no-discharge zones
• Smooth silicone seals – reliable and easy operation
• Compatible with Aquavalve hose tails – flexible installation options
• UV & chemical resistant – built for harsh marine conditions
• Wide temperature range (-40°C to +110°C)

Specifications

• Brand: TruDesign
• Product Type: Manual Y-valve / diverter valve
• Material: Glass-reinforced nylon composite
• Size: Typically 38mm (1½″)
• Operation: Manual lever control
• Seal Type: Silicone rotor seal
• Mounting Options: Surface or through bulkhead
• Temperature Range: -40°C to +110°C
• Use: Marine sanitation systems

Ideal Applications

• Marine toilet systems
• Holding tank management
• Grey and black water plumbing
• Boats operating in regulated discharge zones

This valve is essential for safe, compliant waste management, giving you full control over where discharge flows onboard.

Why Buy from Barton Marine NZ?

• Trusted NZ marine plumbing specialist
• Fast nationwide delivery
• Genuine TruDesign NZ-made fittings
• Ideal for NZ marine regulations and conditions

Pro Tip  

For best performance:

• Pair with TruDesign Aquavalve hose tails for correct sealing
• Mount in an accessible location for easy operation
• Lock the valve when operating in restricted discharge zones