Description
Non-Return Drain Valve Set with Plug – 25mm (1″) Transom Mount – Grey
Self-draining transom valve with integrated non-return function designed to prevent backflow while automatically draining water from cockpit, deck, or bilge areas. Complete set includes valve and plug for 25mm (1″) installations.
Specifications
- Size: 25mm (1 inch)
- Color: Grey
- Type: Non-return drain valve with plug
- Mounting: Transom mount
- Weight: 0.05 kg (50 grams)
- Material: Marine-grade plastic
- SKU: 74449
- Barcode: 5204980744496
Non-Return Function
- Prevents backflow of water into vessel
- One-way valve allows water to drain out only
- Automatically closes when water pressure reverses
- Keeps cockpit and deck areas dry
- Essential for below-waterline or near-waterline installations
- Prevents flooding during heeling or wave action
Features
- Self-draining design automatically removes water
- Non-return valve prevents backflow
- Complete set includes valve and plug
- 25mm (1″) size for standard installations
- Transom mount design for easy installation
- Marine-grade construction resists corrosion
- Grey color for professional appearance
- Lightweight and compact design
Applications
- Cockpit drainage systems
- Deck scupper installations
- Transom drainage
- Self-bailing cockpit systems
- Bilge drainage (above waterline)
- Anchor locker drainage
- Sailboat and powerboat drainage systems
Installation
- Mounts through transom or hull side
- 25mm (1″) hole required for installation
- Install above waterline or with non-return function active
- Secure with appropriate marine sealant
- Ensure proper orientation for drainage
- Plug included for temporary closure
Benefits
- Prevents water from flowing back into vessel
- Automatically drains water without manual intervention
- Keeps cockpit and deck areas dry and safe
- Complete set includes both valve and plug
- Marine-grade construction ensures long service life
- Easy to install and maintain
- Essential safety feature for drainage systems
Plug Function
- Included plug allows temporary closure of drain
- Useful for maintenance or when drain not needed
- Secure fit prevents water entry when plugged
- Easy to insert and remove
Care & Maintenance
- Inspect regularly for debris or blockage
- Clean valve mechanism periodically
- Check non-return function operates correctly
- Ensure plug seals properly when installed
- Replace if valve mechanism becomes damaged
- Rinse with fresh water to prevent salt buildup
Essential self-draining valve for cockpit and deck drainage systems. This non-return drain valve set prevents backflow while automatically draining water, keeping your vessel dry and safe. Complete with plug for 25mm (1″) transom installations.






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