Filquip has been specifying and supplying Silo pressure relief valves for over 20 years for all types of powders and granular materials.
The WAM VHS and VCP Silo Pressure relief valves provide a safety net when abnormal pressure conditions endanger the silo structure. With hundreds of thousands installed worldwide, WAM Pressure Relief Valves are the standardised reliable solution for almost any silo application.
We have a number of helpful Filquip Videos on this page to explain the operation, setting up and maintenance of our Silo Pressure Relief Valve Range.
WAM VHS-B Membrane Silo Pressure Relief Valves (PRV)
Filquip supply WAM VHS membrane silo pressure relief valves to provide a safety net when abnormal pressure conditions endanger the silo structure.
- Excess Pressure up to 900 mm H2O at a flow rate of 5,000m³/hour (0.09 Bar or 1.3 PSI at 2,950 cfm).
- Vacuum/Negative Pressure up to -50 mm H2O at a flow rate of 1,900m³/hour (-0.005 Bar or -0.07 PSI).
- Stainless Steel 304 Casing with Mild Steel or Stainless Steel Upstand to connect to your silo.
- Casing Diameter 273mm
- Available with Duct to Ground kit.
- Food Grade Versions Available.
Open VHS Stainless Steel Pressure Relief Valve Brochure
WAM VCP Spring-Loaded Silo Pressure Relief Valves (PRV)
Filquip supply WAM VCP spring loaded silo pressure relief valves to handle sudden excess or suction pressures that can develop in the silo, hopper or bin.
- Excess Pressure up to 800 mm H2O at a flow rate of 13,000m³/hour (0.05 Bar or 0.72 PSI at 7,650 cfm).
- Vacuum/Negative Pressure up to -100 mm H2O at a flow rate of 1,900m³/hour (-0.01 Bar or -0.14 PSI).
- Painted Carbon Steel or Stainless Steel 304 Casing with Mild Steel or Stainless Steel Upstand to connect to your silo.
- Casing Diameter 273mm (10 inch) or the larger 356mm (14 inch) model.
- Available with inductive sensor for an output signal when the valve is activated.
- Food Grade Versions Available.
Open VCP Spring Loaded Pressure Relief Valve Brochure
WAM VHS-C Polymer Membrane Silo Pressure Relief Valves (PRV)
Filquip supply WAM VHS-C Polymer membrane silo pressure relief valves to ensure the filling of a silo does not allow abnormal pressure conditions to endanger the silo structure.
- Excess Pressure up to 500 mm H2O at a flow rate of 5,000m³/hour (0.05 Bar or 0.72 PSI at 2,950 cfm).
- Vacuum/Negative Pressure up to -50 mm H2O at a flow rate of 1,900m³/hour (-0.005 Bar or -0.07 PSI).
- Polymer Casing with Mild Steel or Stainless Steel Upstand to connect to your silo.
- Casing Diameter 273mm (10 inch).
- Counterweight system never in contact with dust.
- Special properties of membrane and elbow prevent clogging and formation of material crusts.
- Available with Duct to Ground kit.
- Food Grade Versions Available.
- Available with inductive sensor for an output signal when the valve is activated.
Open VHS-C Polymer Pressure Relief Valve Brochure
Silo Overfill Protection System
Filquip can supply a tailored silo overfill protection system to suit any system, to prevent dangerous over pressurisation and over filling, while eliminating dust emissions.
- Avoid damage to silo and accessories.
- Reduce the risk of air pollutions.
- Eliminate the risk of filling the incorrect silo.
- Start and stop the filter cleaner automatically.
- Systems can be tailored to suit applications including the need for Pressure monitoring, Over pressure or vacuum release valves, Fill control, Dust control and Operator destination selection panel.