Polmac non-return valve 1½" with T6 plug-in fitting for inlet and outlet. Material resistant to aggressive chemicals. O-ring made of Viton and internal parts made of stainless steel. The liquid flows in one direction only (max 350 l/min). The spring closure ensures perfect tightness. Can be used in a wide variety of applications and combined directly with aluminum body ball valves. Lateral connection for the possible attachment of a tap (sold separately), through which liquid can be sucked in from an external container.
