All Merts gates are designed and fabricated to provide years of trouble free service. We have built these same units for many years and while we have changed them to improve their characteristics from time to time, we have not changed the basic designs that have been accepted by so many customers for so long. Please notice zerk grease fittings in the hinge pins. A lubricated joint works much better with much less wear than a dry one. Most of these gates can be special ordered to be made of corten steel instead of mild steel. To submit dimension requirements, fill out the Online Gate Form

Double Clamshell Gates The outboard end of the hinge pins of double clamshell gates are supported to keep them in line even as the parts wear. The box and blades are heavy enough to do the work they were designed to do. The blades are shaped to reduce friction as they slice through the material in closing. The tooth gear quadrants that we use on our double clamshell units are designed for long trouble free use. One big advantage of using a double clamshell gate is that the material drops out of the center of the opening as the gate blades separate. Click here to view pictures of Double Clamshell Gates.

Tunnel Gates The Tunnel Gate has a manually operated strike off blade which can be adjusted to limit the flow of material through the gate. This gate also has a separate blade for opening and closing. As this gate opens, this blade drops down close to the conveyor belt which runs below the gate and contains the material within proper confines of the center of the belt. When this gate is installed in the roof of a tunnel, we recommend that it be attached to the bottom of a small hopper made of heavy plate, preferably corten.

Flared Low Headroom Clamshell Gates Merts 18" x 45" Low Headroom Clamshell Gate tapers from 18" x 45" at the top to 10" x 45" at the bottom. It is a conventional double acting clamshell gate built to hold headroom to a minimum. The box becomes an extension of the bin. It is attached by welding.

Low Headroom Double Clamshell Gate Low Headroom Double Clamshell Gate for companion batchers is a conventional double acting clamshell gate which uses the bottom section of the aggregate batcher her as the box of the gate. The purpose of this arrangement is to reduce headroom to a minimum.

Low Headroom Clamshell Gates Low Headroom Clamshell Gate is a conventional double clamshell gate which has been lengthened. The headroom required is held to a minimum. This gate was developed to be used on our famous Merits Aggregate Loading Station years ago and has faithfully performed on these units for many years. It is attached by welding.

Butterfly Valve with Slide Gates Butterfly Valve for cement and flyash has been highly successful for a number of years. It consists of a metal butterfly seating against a resilient seat. Butterfly shaft is packed to prevent leaking. When this valve is used on the bottom of a silo or storage compartment, it is equipped with an emergency cutoff slide gate. Butterfly valves also are used as batcher discharge gates. They perform exceedingly well in this capacity. It is very easy to control the amount of desired opening on this type of gate.

Butterfly Valves A large variety of accessory equipment is available for these gates. This includes, electro pneumatic controls, 2-position charge gate controls, and a 3-position discharge gate controls.