Filquip supply WAM VHS membrane silo pressure relief valves to provide a safety net when abnormal pressure conditions endanger the silo structure.

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.

Almost any application involving the movement of powders and granules, filtration of liquids or dust and fume collection can be serviced by Filquip. Read more

Through an interplay of pressure on both sides of the membrane fitted inside the valve a perfect pressure balance is achieved. In the event of excess pressure the membrane enables air from inside the silo to flow out into the atmosphere, whereas in case of suction vacuum pressure opens the membrane to the atmosphere to allow air in to prevent silo collapse.

Assign the footswitches and pedal to perform MIDI CCs, bank changes, program changes and even transport commands to drive many popular audio applications.

Create and save endless variations - a few for gigs, a few for the studio - and easily add them to your FBV Express MkII via USB. USB connectivity enables FBV Express MkII to receive software and firmware updates.

The VHS-C Pressure Relief Valves consist of a cylindrical shaped polymer body with flanged connection spigot to the silo, an exhaust outlet spout for duct to ground connection, an elastic membrane which is able to re-establish pressure balance instantaneously, a counterweight kit to keep the valve closed under normal conditions, and a weather protection cover.

Get hands-free channel switching and more for your Line 6 amp and POD with FBV Express MkII foot controller!FBV Express MkII offers all the classic advantages you expect from a Line 6 foot controller, including rock-solid channel switches, a rugged wah/volume pedal and a chromatic tuner display but it’s also full of surprises. The steel footswitches are built for constant stomping. They make it easy to store and select four channel presets, to synchronize time-based effects with Tap Tempo, and to activate the chromatic tuner. The burly, full-sized volume/wah pedal feels solid under your foot and features plenty of grip. Clicking the toe switch toggles between volume and wah control.FBV Express MkII connects to your Line 6 amp or POD via the included locking RJ-45 cable. FBV Shortboard MkII also features a USB jack that can be used for upgrading the firmware of Spider IV and Spider Valve MkII amplifiers.Perfectly paired with Spider IV and Spider Valve MkII guitar amplifiers, FBV Express MkII provides complete, hands-free control of the looper, pitch-shifter and other on-board amplifier effects.FBV Express MkII is compatible with most Line 6 amplifiers and POD processors.

Filquip supply WAM VCP-D spring loaded silo pressure relief valves made from polymer are built to handle sudden excess or suction pressures that can develop in the silo, hopper or bin.

FBV Express MkII delivers out-of-the box, plug-n-play connectivity. Stomp the four steel footswitches to quickly store and select channel presets, synchronize your time-based effects with Tap Tempo, activate the chromatic tuner, and more.

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.

Filquip has been providing Hopper and Silo Filling Systems including Silo pressure relief valves for over 20 years for all types of powders and granular materials.

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.

Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Through an interplay of pressure on both sides of the membrane fitted inside the valve a perfect pressure balance is achieved. In the event of excess pressure the membrane enables air from inside the silo to flow out into the atmosphere, whereas in case of suction vacuum pressure opens the membrane to the atmosphere to allow air in to prevent silo collapse.

The VHS Pressure Relief Valves consist of a cylindrical shaped stainless steel body with clamped connection spigot to the silo, an exhaust outlet spout for duct to ground connection, an elastic membrane which is able to re-establish pressure balance instantaneously, a counterweight kit to keep the valve closed under normal conditions, and a weather protection cover.

Tough enough for arena stages yet small enough to fit in your backpack, FBV Express MkII delivers a crucial collection of hands-free functionality that will keep you at the foot of the stage instead of tied to the front of your Line 6 amp or POD.

The VCP-D Pressure Relief Valves consist of a cylindrical casing made from engineered polymer with bottom flange to connect to the silo, an inner negative pressure disc held in position by a central spring rod, an outer positive pressure steel ring kept in position by three spring rods, and a weather protection cover.

Preset springs keep the valve closed when the pressure inside the silo remains within the preset limits.  Once the pressure exceeds the preset value the outer ring is pushed up and pressure can escape. In the event of vacuum pressure the spring is compressed and allows the inner disc to drop. The air entering the silo from outside ensures rapid pressure balancing and before the spring pushes the inner disc back up into “closed” position.

The VCP Pressure Relief Valves consist of a cylindrical shaped stainless steel casing with bottom flange to connect to the silo, an inner negative pressure disc held in position by a central spring rod, an outer positive pressure steel ring kept in position by three spring rods, and a weather protection cover.

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.

Take full advantage of FBV Express MkII with the free and downloadable FBV Control software. The application shows you a graphical representation of your FBV Express MkII and lets you customize the midi commands you send via USB.

Preset springs keep the valve closed when the pressure inside the silo remains within the preset limits.  Once the pressure exceeds the preset value the outer ring is pushed up and pressure can escape. In the event of vacuum pressure the spring is compressed and allows the inner disc to drop. The air entering the silo from outside ensures rapid pressure balancing and before the spring pushes the inner disc back up into “closed” position.

When paired with most Line 6 guitar amplifiers, the footswitches also give you total control of Quick Loop, the amps' built-in 14-second sound-on-sound looper. The burly, full-sized volume/wah pedal feels solid under your foot and features plenty of grip. Clicking the toe-switch toggles between volume and wah control (with an illuminated LED to match). The bright and easy-to-read LCD shows tap tempo, active channel and the chromatic tuner (when activated).