The Tecflow flanged swing check valve is designed to prevent flow reversal in clean water, potable water, and treated sewage pumping systems. WRAS approved and manufactured in compliance with BS 5153 standards, these valves ensure reliable backflow protection across water utility, commercial, and industrial pipelines. The versatile design allows efficient operation when installed in either a horizontal or vertical configuration.

Reliable performance

To withstand long-term operational stress, the main valve body, bonnet, and internal disc are cast from high strength GJS500-7 ductile iron. Rather than relying on a metal seat, the ductile iron disc is entirely encapsulated in EPDM rubber, providing a tight seal even at low pressures, while offering corrosion resistance against treated effluent and raw sewage. The assembly is secured with stainless steel AISI304 bolts for longevity.

The swing check valve is engineered to deliver a smooth, unobstructed flow path when fully open. This design results in low head loss and minimal resistance, reducing turbulence and easing the workload on your pumps to lower system energy costs. The controlled, heavy duty hinge mechanism ensures low noise operation and reduces the risk of water hammer during pump shutdown cycles. The complete casting is coated internally and externally with a 250 micron epoxy finish (RAL 5017) to protect against corrosion in underground installations.