Womix ball check valve with pump connection S/C TERM 1, cast-iron nut G 1 1/2, EPDM seal

Womix ball check valve with pump connection S/C TERM 1 is a one-way valve designed for pump installations and pipeline systems where backflow prevention is required. The valve is equipped with a cast-iron nut with a G 1 1/2 connection and an EPDM sealing element, offering compatibility with water and common heating fluids. Its construction is intended to protect pumps from reverse flow and to help maintain system integrity in residential and light-commercial installations.

Advantages

The cast-iron nut delivers robust mechanical strength and reliable thread engagement for secure pump connections. The EPDM seal provides good resistance to water and typical heating media, ensuring tight shut-off and reduced leakage risk. The ball check mechanism allows smooth, low-resistance flow in the forward direction while preventing backflow, helping to protect pumps and other system components. The compact design simplifies installation in constrained spaces and reduces the need for additional check devices.

Suitable for

• Pump inlet and outlet connections in domestic heating systems
• Circulation loops and return lines in small commercial installations
• Water and typical heating fluid lines where backflow prevention is required
• Retrofit applications to protect existing pumps from reverse flow

Key specifications

• Connection type: threaded G 1 1/2
• Nut material: cast iron
• Sealing material: EPDM
• Valve type: ball check (one-way)
• Application medium: water and typical heating fluids
• Typical use: residential and light-commercial pump systems

How to use

Install the valve in the pipeline with the arrow or flow direction indicated by the valve pointing in the direction of the intended forward flow. Ensure threads are clean and use appropriate thread sealant or tape compatible with EPDM seals and the system medium. Tighten the cast-iron nut to achieve a secure connection without over-torquing, which could damage threads or distort the sealing element. After installation, operate the pump and inspect for leaks and correct one-way function by observing system pressure and flow behaviour.

Usage recommendations

For reliable performance, avoid installation in pipelines carrying aggressive chemicals incompatible with EPDM. Periodic inspection during routine maintenance is recommended to confirm sealing integrity and unobstructed ball movement. When used in heating systems, follow system manufacturer guidelines for fluid composition and corrosion inhibitors to prolong seal and valve life.