Bag Spout Interface

Patented SPOUT-LOCK® clamp ring eliminates dust during untying, discharge, bag collapse and removal
The SPOUT-LOCK® clamp ring creates a high-integrity, sealed connection between the clean side of the bag outlet spout and the clean side of the telescoping tube. This prevents contamination of the product, while eliminating the plant contamination that occurs when falling material displaces air and dust from the hopper. The clamp ring is fully accessible and manually operated using quick-release handles for rapid and safe, yet secure, bag spout connections.

SPOUT-LOCK clamp ring
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SPOUT-LOCK® clamp ring open ready to accept bag spout being uncovered by operator.

SPOUT-LOCK clamp ring
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Pulling the bag spout over the rim of the SPOUT-LOCK® clamp ring.

TELE-TUBE® telescoping tube prevents dead spots and promotes flow
The TELE-TUBE® telescoping tube raises the SPOUT-LOCK® clamp ring for connection to the bag spout, then lowers, applying continual downward tension. As a result, the spout is kept taut at all times, preventing excess spout material from bulging outward (creating dead pockets) or falling inward (creating flow restrictions). Works in conjunction with SPOUT-LOCK® clamp ring and FLOW-FLEXER® bag activators to promote material flow and total evacuation. Available USDA accepted.

TELE-TUBE telescoping tube
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Clean side of bag spout securely connected to clean side of TELE-TUBE® telescoping tube ready for untying of bag spout.

TELE-TUBE telescoping tube
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After bag spout is untied TELE-TUBE® telescoping tube keeps bag spout taut with continuous downward tension, promoting flow and complete discharge.

Leak-proof retying of spouts with POWER-CINCHER® flow control valve
Unlike opposing bars that pinch the spout of partially empty bags from two sides, the POWER-CINCHER® pneumatically-actuated flow control valve contains a series of curved, articulated stainless steel rods that cinch the spout concentrically on a horizontal axis for easy tie-offs, and vertically in a tight zigzag pattern to prevent leakage of even the finest powders. It also resists jamming, breaking and leaking, and allows full-open discharge from bag spouts of all popular diameters. Available USDA accepted.

Dust Containment Enclosure Contains Bag Spout Leaks and Spills
The Dust Containment Enclosure for Flexicon Bulk Bag Dischargers contains spillage and dust that can escape through seams in the bag and folds in the spout. The six-sided enclosure seats against the rim of a hopper or flange of downstream equipment, and is equipped with an exhaust port for dust collection and a hinged door with inspection window.

The top of the six-sided enclosure contains a circular opening that allows passage of the bag spout to the equipment connection point, while the flat bottom supports the bag/spout interface.

Shown is a TELE-TUBE® telescoping tube that pneumatically raises a SPOUT-LOCK® clamp ring which makes a secure, dust-free connection between the clean side of the spout and the clean side of the equipment. Also available is an iris valve bag/spout interface for applications in which dust containment is not a concern.

Conventional iris valves also available
When a sealed connection is unnecessary, iris valves are recommended. To operate, the bag outlet spout is pulled through the iris valve which is then closed around the spout, preventing material flow. The spout can then be untied, the access door closed, and the valve released slowly, reducing uncontrolled bursts of material into the hopper and dust into the plant environment. Shown at bottom right is an iris valve in fully closed position.