combined stop and antipollution check valve, union thread, with plugged drain port
figure 145 2G
1. particularly suitable for hot water circulation systems due to very low opening pressure
2. wetted metal parts made from dezincification-free and corrosion-resistant gunmetal, resistant against aggressive water
3. maintenance-free spindle sealing with self-lubricating and under pressure replaceable EPDM-lip gasket
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