Whale In-Line Duckbill Check Valve – Universal Non-Return Valve for 19/25 mm and 25/38 mm Hoses

ID 1375189

$ 33.26

1-2 weeks delivery time

Diameter, mm:

19/25 mm
25/38 mm

The Whale In-Line Check Valve is a universal non-return valve designed to prevent reverse flow in marine plumbing systems. Featuring a polypropylene body and nitrile duckbill valve, it allows liquid flow in one direction only. Available in two stepped hose-tail versions for 19/25 mm and 25/38 mm hose connections, it is suitable for drainage, bilge, and wastewater applications.

Description
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Whale In-Line Duckbill Check Valve – Universal Non-Return Valve for 19/25 mm and 25/38 mm Hoses

The Whale In-Line Check Valve is a universal one-way valve designed for marine plumbing systems where prevention of reverse flow is required. The valve features a durable polypropylene body combined with a nitrile duckbill valve element that allows fluid to pass in one direction while preventing backflow. Its inline design enables easy installation into existing hose systems.

Key Features

Original Whale inline check valve.
Polypropylene valve body.
Nitrile duckbill valve mechanism.
Allows flow in one direction only.
Designed for inline installation.
Universal stepped hose-tail connections.
Suitable for marine plumbing and drainage systems.

Available Variants

Osculati Code	Hose Size (mm)	Version
17.121.50	25 / 38	Universal
17.121.90	19 / 25	Universal

Applications

Bilge discharge systems.
Drainage and wastewater lines.
Marine plumbing installations.
Grey water systems.
Applications requiring backflow prevention.

Technical Specifications

Specification	Value
Brand	Whale
Product Type	In-Line Check Valve
Valve Design	Duckbill Valve
Body Material	Polypropylene
Valve Material	Nitrile
Installation Type	Inline
Flow Direction	One-Way
Available Hose Sizes	19/25 mm, 25/38 mm