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The ZM-B15 is a low-pressure differential pressure overflow valve that maintains constant overpressure relative to atmospheric pressure without requiring auxiliary energy. It is used in the chemical, petrochemical, pharmaceutical, cosmetics, and food industries for inerting and blanketing process liquids with protective gases. When used in combination with a ZM-R reducing valve, inert gas consumption can be reduced by up to 90% through coordinated control behaviour.
| Product type | Overflow valve |
| Pressure class | Low pressure / differential pressure / vacuum |
| Nominal diameter | DN15 |
| Inlet pressure P1 | -1 to 2.5 bar (-14.5 to 29 psi) |
| Outlet pressure P2 | < P1 |
| Temperature range | -20 to 180 °C |
| Material | Stainless steel (1.4571), Hastelloy C |
| Media | Liquids, Gases |
| Certifications | ATEX, CE, FDA, USP VI, PED, Oil and grease free |
Low pressure differential pressure reduction valve in inline design for industrial and pharmaceutical applications. Controls both gaseous and liquid media.
Low pressure differential pressure reduction valve in inline design for industrial and pharmaceutical applications. Controls both gaseous and liquid media.
Low pressure differential pressure reduction valve in inline design for industrial and pharmaceutical applications. Controls both gaseous and liquid media.
Contact our engineering team for custom specifications, material options, and technical support for the ZM-B15 Back Pressure Overflow Valve.
