Check flap valve ARCO 1 1/4 (DN32) model 190206

Flap-type check valve ARCO model 190206 with nominal size 1 1/4 (DN32) is a compact one-way valve designed to prevent reverse flow in piping systems. The valve uses a hinged flap (clapper) that closes automatically when flow reverses, protecting pumps, pipes and equipment from backflow. Constructed for use in water and other compatible fluids, this DN32 check flap valve is suitable for horizontal or vertical installations where a reliable non-return function is required.

Advantages

The ARCO DN32 flap valve provides reliable one-way flow control with a simple mechanical design that requires minimal maintenance. Its hinged flap ensures rapid closing to reduce the risk of water hammer and backflow damage. The compact dimensions make it easy to fit in tight spaces and integrate with standard DN32 piping and fittings. Materials are selected for compatibility with water and similar fluids, offering stable performance in plumbing, HVAC and pump discharge lines.

Suitable for

• Domestic and commercial plumbing systems requiring backflow prevention
• HVAC systems for condensate or cooling water lines
• Pump discharge lines to protect pumps and reduce reverse flow
• General water distribution and recirculation circuits with DN32 connections

Key specifications

• Valve type: Flap (clapper) check valve
• Nominal size: 1 1/4 (DN32)
• Connection: DN32-compatible ends for standard piping
• Media: Water and compatible fluids
• Operation: Automatic, flow-activated hinged flap

How to use

Install the check flap valve in the correct flow direction marked on the body, ensuring that the hinge axis is aligned according to the manufacturer’s instructions and that the valve is supported to avoid pipe stress. Use appropriate gaskets and fittings for a leak-free connection and verify compatibility of the piping material with the valve. After installation, perform a functional check by allowing flow through the line to confirm the flap opens freely and closes when flow stops or reverses.

Usage recommendations

To ensure long service life, avoid installing the valve in locations with heavy sediment that can obstruct the flap. Periodically inspect for debris and signs of wear, and follow routine maintenance for the system. For applications with high backpressure or aggressive fluids, confirm material compatibility and consult technical data before selection.